After several weeks ridin' with 20" wheels, i must say i would never put back the stock 18's. In fact i drove my friend's 8 equipped with stockers and i definitively didn't lose a bit of whatever people said i was supposed to lose. :rolleyes:

Acceleration? can't feel the change.
Braking? No way.
Smooth ride? No.
Handling? Haha, you must be kidding...

But now i want to know how (Ezzy's friend??) did installed 22' on back :confused:

i would think that puttin 20s would be tacky... and u probably dont feel it now but u did lose all those things: acceleration, braking, smooth ride, and handling but just dont know it yet.

u take the performance right out of performance car :/ IMO don't put dubs on a japanese car xP

I didnt feel now and will not feel it later today neither tomorrow ;)

I drove one-after-the-other a stock rx8 and mine. 20's better. Period.

"i don't know yet ?"

When i will ?

If i'm in a deep psychological illusion, then i will check the numbers (braking time, accelration, etc..) later this month and will come back with results.

Question is: Did YOU ever actually tried an Rx-8 with 20's ?

If 20's float your boat, then whatever. You must love the bling factor big time when the rest of the world laughs at you. Do you have a park bench for a wing, a tacky ricer bodykit, and tribal stickers? that would be phat! :rolleyes:

Do yourself a favor and go buy Midnight Club 3, DUB Edition. It's much cheaper.

20' 20 footers. Now that would be pimping. Hehe

SCC proved on a dyno that going up a +2 size (and about 10lbs a wheel) resulted in about a 5% whp lost. Search the archives on their site.

Real data beats buttdyno 10 out of 10 times.

Dude, you should get spinners for that shit! That would be the bomb, yo!!

Save the 20s for a big body or SUV.

Can you tell the difference between a $50 bottle of wine and one that costs $500? I can't, but that doesn't mean a difference doesn't exist.

Having said that, if you can't notice a performance hit from 20" rims and you like the look, then whatever floats your boat. Just don't try to tell Bordeaux enthusiasts there is no difference between a 1970 Latour and a 1975 Lanessan simply because you don't notice one.

i have 18 inch DUBS...hahaha... and no difference? this guys kidding right?

There is a lot of brainwashed people here. I'm sure NONE of them ever tried 20's...

Instead of talking about what YOU DON'T KNOW, just use your mouth for breathing.

Earth wasn't round shaped until Christophe Colomb discover the truth.

Yes. World can be filled with 6,000,000,000 dumb people...minus one.


P.S. '70 Latour is a good wine, but not as good as the '64 Petrus.

Ttiwwp?

That's all fine and good but you still haven't told us when you're putting your spinners on!

That's all fine and good but you still haven't told us when you're putting your spinners on!

hahaha waaap waaaaaap waaaaaap!

Good to see i stimulate a discussion

I'm planning to put the spinners later this month. I ordered special balanced spinners so they will actually improve cornering by transfering weight from the top of the wheel to the bottom. Of course it is not electronicaly controlled like the Japanese RSF spinners, but still it will give me at least 0.95g

This thread went downhill pretty quickly...

Would you happen to have any pics?

Post pics ?

To let them call me pimp again ?


uhmmm... let me think,,,






It could be nice !

No seriously, in order to get serious comments and feedback of ACTUAL person who DID make the comparison between stockers and 33lbs 20's, i'll tell you this:

- It's a fact that increasing by 3% the overall diameter of the wheel will (in theory) give 3% more top speed and 3% less acceleration. Only talking about wheel diameter, not the weight...

- Yes, the 20's are weighty. I'll check the exact weight of the 20's tires/wheel/air compared to stockers kit, and we'll see the exact numbers.

- Steering feeling IS better. 225 tires series is not good for this car.

- High speed stability is better.

- If braking is worst, it's barely noticeable. I mean BARELY.

- If acceleration is worst, it's barely noticeable either. Must check on chrono (i'll do)

- Finally, 20's on a daily driver RX-8 is VERY GOOD. If your doing any kind of race, then (of course) do whatever you think is better to get 0.02 seconds on your lap.


People are so FREAK about the weight of their car, i'm sure they could throw out their skinny girlfriend to save the 110lbs.

You do think of it sometimes, uh ? SAY IT ! hahaha

My girlfriend is fat.

shit happens.

Buy her carbon fiber high heels.

shit happens.

Buy her carbon fiber high heels.

:eek: :D

all bling and no zing. awesome!

can't wait to see the spinners on your 8 - the pinnacle of ghettoness will be complete.

Mugatu, i must say that i love your skills.



I'm thinking of ordering this:

http://www.gtechpro.com/test.html

For testing. Anyone heard of it ?

I was eating a sandwich and thinking...

"This thread is useless without pics!"

So I thought I'd do something about it:

http://images.andale.com/f2/115/106/3730802/1114882526312_jo8_a.jpg

http://images.andale.com/f2/115/106/3730802/1114662314810_jo8_b.jpg

Post pics ?

To let them call me pimp again ?


uhmmm... let me think,,,




It could be nice !

Ok... I was honestly interested in seeing how they looked, but nevermind...

listen to BUBBRUBB!

http://www.rx8club.com/attachment.php?attachmentid=51807&stc=1

Hey i don't even had to spend energy searching for pics ;)

Yes, this is my car.

I had very bad comments on this site about these rims, but only great comments elsewhere.

man thats pretty nasty....haha

Mugatu, stop spreading your jealousy here. I know the cost of one of my rim is your annual income, but don't lose faith in life only for that, man!

I am truly devoted to your cause.

It's all good dude, just giving you a hard time. Not everyone is blessed with good taste :D

Mugatu, stop spreading your jealousy here. I know the cost of one of my rim is your annual income, but don't lose faith in life only for that, man!

I am truly devoted to your cause.

Well Sooooooooorrryyy rich guy...

well i know there was a point to this thread when i started reading it...but after about three posts it lost it's way.

ah well i am curious as to what number you put down compared to a stock rx-8. the rims aren't my taste but no big deal they dont' look all that bad.....everyone has different taste..thats why you have them and i don't. dunno why everyone jumped all over you. hehe but maybe that's their "thing"..hehe different strokes for different folks and all that....

Hey i don't even had to spend energy searching for pics ;)

Yes, this is my car.

I had very bad comments on this site about these rims, but only great comments elsewhere.

LOL when khtm said he was going to do something about it I thought that was a photochop, I mean who in their right mind puts those rims on a classy car like the 8, but I guess I was wrong :eek:

But I guess if you can't hear the people laughing at you as you drive by its all good. :rolleyes:

*girlish mode*

Yes but he's hurting my feelings so badly... I feel, i feel not confortable inside. I feel rejected and not appreciated from the other members of the club., :(

*end girlish mode*


ouf, weird feeling

This is my new favorite thread.

why is everyone giving this guy sh#t?

But I guess if you can't hear the people laughing at you as you drive by its all good.

Actually, you and other brainwashed freaks are the only people who don't find the car just plain gorgeous with these rims.

And... usually when you're the only one laughing in the place, it may be time to ask yourself few questions.

Like:

- Am i remote-controlled ?

Mugatu, stop spreading your jealousy here. I know the cost of one of my rim is your annual income, but don't lose faith in life only for that, man!

I am truly devoted to your cause.

I appreciate both that you admire my skills, and that you you would pay $80,000 for one rim. You sir, are amazing.

im not giving him shit...i just think the rims look like shit....

im not giving him shit...i just think the rims look like shit....

be careful! those rims are $80,000 a piece!

did you have your speedometer recalibrated? what about bigger brakes? I personally could care less who has what wheels on their car, but even a mild enthusiast knows that adding bigger wheels adds weight, and weight is the enemy. You can spout off how much money you spent, and how you can't tell a difference or whatever, but when you do that you only prove that you're ignorant and that you're compensating for something, good for you! :D

why is everyone giving this guy sh#t?

There is 3 possible answers:

1. People cannot afford expensive rims, so they are plain jealous.

2. Everyone at school is telling them that 20's rims is automatically Pimp-SUV-Bling. And pimp is not cool. So am i.

3. They are so minded on lightweight mods on there car, they cannot EVEN imagine people who actually increase weight without commiting suicide after that.


It's a discussion forum. It's internet. It's life.


But pretty funny, if you ask me.

but when you do that you only prove that you're ignorant and that

Of course.

Please teach me, Master.

I repeat:

20's on a DAILY DRIVER RX8 ::: IT'S ABSOLUTELY OK.

Of course it may have BARELY NOTICEABLE changes on brake, acceleration, etc... BUT


I CAN'T FEEL IT.


Neither 3 others rx-8 owners who tried my car.


You know when i feel the change ? When i put A/C. THAT'S a f*uckin change. Got the picture ?

You got fiber carbon 5lbs rims ? Good for you. If you can go 2mph faster and you,re happy with it, fine. But don't spread the word on this site that 20's will ruin the ride: it's NOT true and absolutely misleading for new members.

There is 3 possible answers:

1. People cannot afford expensive rims, so they are plain jealous.


Oh I can afford it, I just choose to spend money in other places, like my home, vacations, etc. I feel no reason to bling out something like rims so I can brag how much they cost. I'm not superficial. :rolleyes:

and why stop at 20s? might as well put 30 inchers on there and be the coolest person in the whole wide world.

Mugatu, do you mind if i ask you to marry me ?

You're my type.

There is 3 possible answers:

1. People cannot afford expensive rims, so they are plain jealous.

2. Everyone at school is telling them that 20's rims is automatically Pimp-SUV-Bling. And pimp is not cool. So am i.

3. They are so minded on lightweight mods on there car, they cannot EVEN imagine people who actually increase weight without commiting suicide after that.


It's a discussion forum. It's internet. It's life.


But pretty funny, if you ask me.


ha ha jealousy? too funny man...the majority of the people on this forum are pretty well off. Not every punk kid on this forum can afford a car like this. And why do you go off saying that cause your rims are expensive you think your pimp and everyone is jealous of you? Who the hell are you to say this??

You think that 30's will fit on my car ? :confused:

aahh c'mon man, it can't be true!

Shame on you, Dream-breaker

And why do you go off saying that cause your rims are expensive you think your pimp and everyone is jealous of you? Who the hell are you to say this??

It was POSSIBLE answer. "possible" (page 717 Roberts & Collins dictionary) means that it COULD.

There is kids on this site. Kids can't lie.

are you kidding? 30s are the shiznit! You definitely have to make them fit! THey're so you! All the dudes will simply LOVE you!

^^^awe....and her ei thought this thread wouldn't have a happy ending :p

There is kids on this site. Kids can't lie.

are you one of them? Adults usually say "there ARE kids on this site."




This is funny. This is the internet. This is a discussion. :rolleyes:

:)


hahaha


Great thread guys. Differents opinions makes great discussions

Hey Ezzy, if you can read this topic, please let me know about the Australian guy who put 22's at the rear.

Mugatu says that 30's fits, but i don't trust him he's too jealous ;)

I wont go bigger than 22, i promise.

i agree........you got ot love the internet. hehe i'm waiting for some one to set a tiem and place to meet after school to RUMBLE..hehe ah that woudl be clasic..and good news i got my digital camera back tso i can document it all ;)

Thanks for the great read, I really needed it. :D As for your car... It's yours, you can do whatever you want to it. More power to you man.

why is everyone giving this guy sh#t?Because he claims 20" rims have absolutely no effect on performance.
i definitively didn't lose a bit of whatever people said i was supposed to loseYet he contradicted himself by saying this: It's a fact that increasing by 3% the overall diameter of the wheel will (in theory) give 3% less acceleration.

Trying to compare dynamic handling is apples to oranges since his new tires are (presumably) wider than stock but even without trying larger wheels I can definitively state they offer worse straightline acceleration performance compared to stock. How much worse may be open to argument but worse nonetheless.

Larger overall tire diameter (with everything else equal) means less effective torque. Less torque means slower acceleration.
Heavier rim and tire weight means more torque is required to achieve the same rate of acceleration. Since torque remains the same this means slower acceleration.
Bigger rim diameters means the bulk of the rim's weight is farther from the center. Moving weight farther away results in a higher polar moment of inertia, which again means more torque is required to achieve the same rate of acceleration. If you don't know what "polar moment of interia" means do a google search. Not only is the weight farther away, there's more of it since you need more metal to make a larger circle.

All three items have a synergistic effect which worsens performance more than each item alone. You can try arguing otherwise but you're arguing against physics.

PS. I've know the GTechPro. It's a toy that amateurs who play at performance use.

but why oh why would our devoted blingman JO8 care about 0-60 times when he doesn't care that his 20" rims are only for daily driving..................




:rolleyes:

Because he claims 20" rims have absolutely no effect on performance.

Untrue. I claim that i didn't FEEL any difference. I might feel wrong, but still i feel what i feel !



Yet he contradicted himself by saying this:

Untrue. Please notice the ( in theory )

You may be good in physics, but your reading is poor.

Ok guys. Enough theory.


GIVE US THE NUMBERS.

0-60 mph stockers ?
0-60 mph "pimp 20's" ?

You want to demonstrate (or convince) be that i'm an ignorant-pimp-moron ?

No problem. But do your job better, blabla is not enough.

PROOF, ACTUAL RESULTS, REAL TESTS NEEDED

Of course.

Please teach me, Master.

I repeat:

20's on a DAILY DRIVER RX8 ::: IT'S ABSOLUTELY OK.

Of course it may have BARELY NOTICEABLE changes on brake, acceleration, etc... BUT


I CAN'T FEEL IT.


Neither 3 others rx-8 owners who tried my car.


You know when i feel the change ? When i put A/C. THAT'S a f*uckin change. Got the picture ?

You got fiber carbon 5lbs rims ? Good for you. If you can go 2mph faster and you,re happy with it, fine. But don't spread the word on this site that 20's will ruin the ride: it's NOT true and absolutely misleading for new members.

Well okey dokey, I went from 15s to 18s on my '97 S10 when I had it, that was a f-in change too, it threw off my speedo, i had to upgrade the brakes (well actually I might have gotten by, but with the extra weight they added it sure helped) and my truck was slower, did it ruin it? no. was it worth it? I thought so as the larger rear tires (width wise) were very helpful in bad weather. does that make me the the super duper bad ass pimp? heck no. I don't think anyone on here is claiming that 20s will ruin your ride, i just think a lot of people think they're too big and too heavy for such a light and nimble car. Maybe you can't feel the change, but that doesn't mean it's not there. The wind is blowing outside right now but I can't feel it, does that make it not there as well? I think you're just justifying your purchase, and that's crazy, if you like them you shouldn't have to justify them, just enjoy what you got and to heck with what people think. A few people posting on a forum aren't going to change anyone's mind anyway, if more people want 20s they'll get them, no matter what anyone on here says. lighten up buddy, after all, they're just wheels on a car anyway :)

I thought it was common knowledge that bigger wheels after a certain size will decrease performance? The weight alone will slow your car down, your speedometer is wrong now also. The wheels don't really look bad (not my taste--I like chrome but that style isn't doing it for me)--but your performance is definately compromised--did you weigh those rims?

I thought it was common knowledge that bigger wheels after a certain size will decrease performance? The weight alone will slow your car down, your speedometer is wrong now also. The wheels don't really look bad (not my taste--I like chrome but that style isn't doing it for me)--but your performance is definately compromised--did you weigh those rims?

It is common knowledge for most people, just some people live in denial :D

Oh where's denial? I want to move there too!!

Well, my 2¢ -

If he likes them, he likes them. Why give him crap? There is no accounting for taste because it is 100% subjective.

I bet NONE of us have actually G-Tech'ed or dyno'ed before and after wheel changes. I know I haven't.
I run 19" wheels because I like them. I went out of my way to get wheels that had less mass than the stock wheels to help counteract the inertial issue. Fact is, I can discern absolutely no difference between the stock wheels/tires and my current setup except my wet traction is better. That is the tires.
At 99/100 on a closed course, the car handles the same and the ride is unchanged.
Will it dyno lower? Who knows.
I have a turbo to make up the difference.

You may be good in physics, but your reading is poor.Not according to the College Board. Scored 800 in verbal. My IQ is in the 135 range too. But enough dick waving. Let me put it to you in your own words:
Claiming you don't feel any difference is not the same as saying you definitively didn't lose a bit of whatever people said you were supposed to lose. The former statement is basically what I said in my first post. It's the latter statement that's untrue.

PS. In the words of Bogart, stop trying to attack other people's strengths through your own weaknesses. Mugatu earns a decent wage and I'm not an idiot.

PS. In the words of Bogart, stop trying to attack other people's strengths through your own weaknesses. Mugatu earns a decent wage and I'm not an idiot.

Thanks, PUR NRG ;)

Everyone, kiss and make up! Or else uncle abbid has to punish you all, DeeDubb the most, all those hairy jokes are comming back :p

braking is not as stock,I feel a difference but not major.
but ride is perfect and my car hooks better than stockers,but mainly cause of the tires.
some of you are forgetting that mazda designed the rx8 with 20" wheels
but JO8 22'' your nuts

some of you are forgetting that mazda designed the rx8 with 20" wheels No, they didn't. The RX-8 was designed around and was supposed to roll into production with 19" wheels but they pulled back to 18" at the last second (end of 2002) because there wasn't enough availability of tires in that size at the time.

Oh where's denial? I want to move there too!!

it's right down the street from where the people are that believe the RX8 is not affected by larger diameter wheels :D and no, it's not the river in Egypt (hah)

Hey Kel RX8,
I know you have probably answered these questions a few times on this forum, but can you answer them for me without making me look it all up? I really like your set up, great looking car. What are your wheel sizes and offsets, and did you have to roll the fenders? Thanks for any info.

To anyone looking at 20's, this is the way to go. Classy and sexy all rolled into one car. Good show..........

No, they didn't. The RX-8 was designed around and was supposed to roll into production with 19" wheels but they pulled back to 18" at the last second (end of 2002) because there wasn't enough availability of tires in that size at the time.

our creator's first dreams
designed around 20'' but only a concept.
http://media.ford.com/rx_evolv/
theres tons of stories on the original design and all have 20 wheels.

theCATALYST
im gonna shot you a P/M in the morning, thanks.

trying to be neutral here, even though im one of the very frist few ppl got the 20's here in australia :rolleyes:

anyway, there ARE differences between factory 18's and aftermarket 20's..

- physical size difference, but you'd try to keep the overall diameter close to factory, therefore the speedo readings are similar

- weight difference, but you'd be surprised with today's technology, it is possible to get a set of 20's with similar weight to the factory 18's. with 20's, you are carrying less air, and therefore less water particles.... correct me if im wrong :p

- ride comfort, 18"s have thicker profile, therefore it'd be more comfortable than 20"s with thinner profile, it also depends on what type of roads you travel the most. there are certain roads here in sydney i will not get on, even if i have to make a detour.

- braking, there will be a difference, but not big enough to be dangerous. +2 size upgrade is very common amongst high-end car companies. my other mazda came with 14" factory steelies, and i have upgraded to 15's, then 17"s, then 18"s then 19"s. as soon as i got to 17" combo, i have done a minor brake system upgrade, and when i got the 18"s, i upgraded again, but thats a +3/+4 size upgrade, similar to the ones mentioned here from 15" to 18".

i have 20"x8.5" and 245/35 tyres all round, lowered springs and adjustable swaybars front and rear, im happy with it, and for me its a perfect daily driver combo. if im taking the 8 to a track day, then i'd stupid not to put smaller wheel/tyre combo on it.

some points mentioned in this thread are vaild, but some are shallowminded.
some ppl asked me why did i put 20"s on my car, i always told them "because i can". :rolleyes:

anyway, better go now :)

ps. JO8, the one with 22"s looks funny. he had 20"s front and 22"s rear combo, and the 8 sits on an angle. the rear looked weird. the main reason he did that is because he has a wheels/tyres business here in australia, and he uses the 8 as one if his promo cars ;)

Not according to the College Board. Scored 800 in verbal. My IQ is in the 135 range too. But enough dick waving. Let me put it to you in your own words:
Claiming you don't feel any difference is not the same as saying you definitively didn't lose a bit of whatever people said you were supposed to lose. The former statement is basically what I said in my first post. It's the latter statement that's untrue.

PS. In the words of Bogart, stop trying to attack other people's strengths through your own weaknesses. Mugatu earns a decent wage and I'm not an idiot.

that's it i so have you beat in teh sat's...i scored a 950............in my mind :D lol no i suck at that sort of thing......and IQ test only judge how good or intelligent you are based on the people who made the test. so saying that i'm kicking it at 126 vs. captain made the test :)

wish i had a 800 in the verbal...but if i did i'm sure my spelling woudl be loads better. l0ol and we all knw othat isn't the case.

army_rx8, didn't you just get new tires, bigger than the factory tires?

hehehehe...yes instead of the stoke 225/45/18's i got 245/40/18...wider tires with a sligthly lower profile......but same rims....this thread is about rims baby i got 18's :p

hehe and by the way congrats on the first counted post :D

i just don't have the d'oh for the bling bling hehehehe

thankfully, otherwise you'd prob have to find a new significant other...good luck with that padunkadunk search! ;) oh, and thanks for noticing my first officially counted one, even though i've posted about 5 times. quick reply's don't count?

no quick replys do count...but not if there are in the louge...hehehehe :p

p.s. BAM number two post is away...babies on a roll :D

i should just keep posting here then :) total off-subject (regarding this threads subject)... r we going to 7stock? :D

you want to head out to California? or are youi talking about rotorfest in New Jersey?

naw it isnt' off subject...as long as we cruise to the event on some DUBS ;)

[abbid is watching boxcar and army]

ooh sweet, we have an audience! i feel like such a voyeur!! ;)

hehe i wasn't aware you were into that sort of thing?

(gives high five to abbid) :D

hehe don't you always have an audience? (by the way how do you like my productivity as a government employee?)

liar! you were totally aware i was into that sort of thing. im very impressed by your work ethics. hey, if ur slacking at your job, it'll make mine much easier on monday...since you're competition and all ;) and yes, cali. in october. what size rims are on my rsx?

i dont' remember what's on the rsx..i think the type s has 17's....the regular crappy one has like 16's or something. hmm i don't think i can go to cali i am poor..and i am doing my work..i'm already at my quota :D hehe i got skills baby.

oo so you are into that sort of thing...sweeeeeeeeeeeeeeeeeeeeeeeeet :D

well, h*ll, i better be into this sort of stuff if i have to keep up with u and your previous "car-cop" experience. i'll have to check the rsx-s brochure, its at my aptmnt. im glad you're working at work? this just isn't as much fun as when abbid is watching...hey....u thinking what im thinking? ;)

hmm i dunno "i can imagine quite a lot"

hehehe car-cop..now lets never speak of that again. :p

yeah, well, imagine the one thing you've wanted b4 that im NOT gonna give you...unless its with abbid ;) and ur never living the car-cop thing down! how big were the rims on the jellybean (is that the car u were in?)? (just trying to keep with the thread subject buddy!)

jelly-bean was kicking 14's baby...i was rolling deep back in the day...soo all i got to do is get abbid a plane ticket huh? LOL i kid i kid.

well love i'm leaving work catch you later. :D

we should go to him, the weather's much nicer in arizona. we'll take ur car (but only if we get you bigger rims! ;)) yeah, leave work, slacker!!

Us heavy mazda 6 family sedans owners decided to actually test this whole argument. We took the cars to a drag strip, and actually swapped wheels between runs.

rx8 18x8 225/45/18 bridgestone (stock)
verse
rx7 16x8 225/50/16 Toyo Trampios (Old V-rated tire)

(Demonstration of gearing difference effect, and weight effect)

The left car is the Mazda 6i ATX.

Rx8 Wheels Run 1 [18x8]
http://www.otaking71.com/jane/drags/run3.jpg

Rx8 Wheels Run 2
http://www.otaking71.com/jane/drags/run4.jpg

Rx7 Wheels Run 1 [16x8]
http://www.otaking71.com/jane/drags/run5.jpg

Rx7 Wheels Run 2 [16x8]
http://www.otaking71.com/jane/drags/run6.jpg

I know you fella's can do the math.

The sticky is also sitting at the top of the forum, with articles, links, dyno's, 0-60, track times, and 1/4 miles as additional supporting evidence. Just wanted to show that people don't just sit here and talk about shit without any data behind it. Some people do go out and test these arguments.

http://www.rx8club.com/showthread.php?t=51865&page=1

Us heavy mazda 6 family sedans owners decided to actually test this whole argument. We took the cars to a drag strip, and actually swapped wheels between runs.

rx8 18x8 225/45/18 bridgestone (stock)
verse
rx7 16x8 225/50/16 Toyo Trampios (Old V-rated tire)

(Demonstration of gearing difference effect, and weight effect)

The left car is the Mazda 6i ATX.

Rx8 Wheels Run 1 [18x8]
http://www.otaking71.com/jane/drags/run3.jpg

Rx8 Wheels Run 2
http://www.otaking71.com/jane/drags/run4.jpg

Rx7 Wheels Run 1 [16x8]
http://www.otaking71.com/jane/drags/run5.jpg

Rx7 Wheels Run 2 [16x8]
http://www.otaking71.com/jane/drags/run6.jpg

I know you fella's can do the math.

The sticky is also sitting at the top of the forum, with articles, links, dyno's, 0-60, track times, and 1/4 miles as additional supporting evidence. Just wanted to show that people don't just sit here and talk about shit without any data behind it. Some people do go out and test these arguments.

http://www.rx8club.com/showthread.php?t=51865&page=1

I think that's what some of us call "OWNED" :D

Just from observation I have a few comments to make, trying not to be involved. I think what most people think of the RX8 is obviously a sports/performance car, when 20" wheels usually form to more of a luxury vehicle style. After seeing those pictures, I honestly say that it doesn't look that bad according to size. I dont really like the 'looks' of them. Most people on this forum are on this forum for this being a sports car, looking for performance. In this case most people here would not have to think too long to know that such a big wheel would not give you any gains. Im sure you will find plenty of praises on that setup. Just probably not here.

Us heavy mazda 6 family sedans owners decided to actually test this whole argument. We took the cars to a drag strip, and actually swapped wheels between runs.I'm not sure if it's fair to compare new Potenzas to old Trampios--not only do you have different rubber compounds but the older tires have gone through more heat cycles, simple age, etc. But hopefully this is what JO8 is looking for.

Pur,

The trampios were on the rx7 rims. If anything that was an additional disadvantage towards the smaller wheels. The trampios were quite old, and quite outdated (The compound felt like a rock), vs the rx8 potenza's with about 5-8k miles on them. But your right, there are a bunch of variables involved...but this is at least an example done by local mazda guys.

Having autocrossed in a 6 with a variety of wheel and tire sizes, I'd have to say going from a set of 18x8's, to a set of lighter 16x8's (12-15 lb a corner drop off) is roughly equivilant to going from a maxima to a miata in terms of vehicle agility and nimbleness. Then of course I know I don't have to tell you that :).

Has been a funny thread. Beside the obvious argument of the bigger wheels not making a difference, (not gonna mention the ugly factor on the pics) but also comments like my wider tires give better bad weather handling, This has been a thread littered with ignorance. I guess the best comment was from JO (lol, he named himself that, like it wasn't obvious) that others in school must say something about the car. Kinda takes the fun out of everyone arguing with a kid still in school:) But he did ask for it.

haha. Page 7.

oh oh guys, you're so entertaining, and it's free.

I think i didn't made myself clear (my bad. English is not my first language.)

Ok, please read this carefully:

1. I KNOW that 20's cannot be better in term of performance that lighter wheels. I'm not stupid and i know that lighter is the vehicule, better is. I used to made montain bike competitions, and a Titanium bike weighting 21lbs is way better than a 30lbs bike. Difference is HUGE when climbing.

2. BUT (and please pay attention) i'm not convinced that 20's will ruin de ride. In any way. This mean that i don't give a S**T if i lose 0.1 seconds on 0-60 mph. My car is still fast enough to get speeding ticket, and the bracking is excellent and beyond most cars allowed on the road.

3. You guys are plain maniacs about performance ? You absolutely want to get the most feeling for your bucks ? ...And still playin' around with this MAZDA (it's a Mazda, did you noticed it ? Mazda doesn't spell F-E-R-R-A-R-I) ? Hey...c'mon. Save your bucks and buy yourself a Suzuki GSXR 1300. You'll know what real feeling is.

4. Please don't bother me with tiny-stupid differences as "0-60 mph in 6.1 sec" compared to "0-60 mph in 6.3 sec". Anything above 5 seconds it's just....a daily driver.

5. I didn't measured the differences. Anyway, i don't care. What is important it's the feeling i have when i'm sitting in the car. I FEEL that i didn't lose enough of "performance" to put back the 18's stockers. PERIOD.

6. I still want to be in your picky club. Please don't ban me. ;)

J08,

It was 0.536 seconds in the 1/4 mile. (Were not talking 0-60 here) Thats roughly equivilant to 400-500 lbs off the car, or adding an additional 50 bhp. Ask Charles if he'd like another 0.5 seconds off his 1/4 mile time :).

Its all there in the timing slips (You did ask for proof)...though thats a comparison between 16's and 18's. There are variances, but even if you threw out 50% of the difference, thats still a .25 second gain. Thats still pretty substaintal (your talking car lengths over a stock car).

The differences get larger the larger the diameter of the wheel. (The tire weight becomes more of a rotational intertia problem the farther its moved away from the hub).

I just think that its important to point out, that when everyone on the forum argues over the simple exhaust/intake bolt ones, and which one is best (revi and hymee!! ha!), were talking fractions of a difference compared to the effect of the wheels/tires on the car.

2. BUT (and please pay attention) i'm not convinced that 20's will ruin de ride. In any way. This mean that i don't give a S**T if i lose 0.1 seconds on 0-60 mph. My car is still fast enough to get speeding ticket, and the bracking is excellent and beyond most cars allowed on the road.
...... ;)
Good thing you winked or we would think you are serious....

I have two sets of tires/wheels: My everyday 18" wheels with Avon 550s in 225/45, and my auto-x Kosei K1 TS 17" wheels with Kumho MXs in 255/40. The weight difference is around 8 lbs per tire/wheel combination. I also ride on TEIN Basic coilovers. Even my wife can tell the difference in ride quality. Sharp bumps are much less noticable with the lighter 17" setup even though the MXs have a stiffer sidewall then the 550s. I too would have been skepticle if I hadn't experienced the ride difference first hand.

So, you can be happy and go on believing what you want to while the rest of us continue to "give a S**T" about 60' times and slalom speeds. :p

I think we can end this thread now; it's pretty much beaten to death. Can we all agree on the following three items?
All other things being equal, larger rims have a negative effect on a car's overall performance.
Some people can feel that loss of performance.
JO8 can not.
I mentioned the theory behind the loss of performance. Crossbow provided time slips to back up the theory. Dark8 gave an example of people who can feel a difference and JO8 has repeatedly stated he can't.

Really that's all there is to say.

has anyone noticed that EVERY post that JO8 has posted is in reference to 20" rims?

what does that tell ya.........oh right, that he thinks he's an expert. :rolleyes:

You're all passionnate.

Beautiful to see.


http://us.st5.yimg.com/store1.yimg.com/I/demotivators_1843_1702845

Has been a funny thread. Beside the obvious argument of the bigger wheels not making a difference, (not gonna mention the ugly factor on the pics) but also comments like my wider tires give better bad weather handling, This has been a thread littered with ignorance. I guess the best comment was from JO (lol, he named himself that, like it wasn't obvious) that others in school must say something about the car. Kinda takes the fun out of everyone arguing with a kid still in school:) But he did ask for it.

I'm not sure what ignorance you speak of (aside from the obvious) but I went from narrow crappy uniroyal (ugh) tiger paws (195/70/15 on all 4 corners i think) to 225/40/18s on the front and 245/40/18s Michelin Pilots and I did feel a difference in handling with my 97 S10, they were substantially better in crappy weather compared to the stock tires that came with the vehicle, but maybe i'm not the one you're talking about?

You're all passionnate.

Beautiful to see.


http://us.st5.yimg.com/store1.yimg.com/I/demotivators_1843_1702845

does that website have anything for "Plagiarism"? :D

but I went from narrow crappy uniroyal (ugh) tiger paws (195/70/15 on all 4 corners i think) to 225/40/18s on the front and 245/40/18s Michelin Pilots and I did feel.

You were seeing the benefit of a better tire compound, combined with a lower profile sidewall.

You would have seen the same or larger benefit had you instead moved to something like a 245/45/16, or 245/50/16. This also has the secondary benefit of massively reducing tire costs. (Allowing you to purchase awesome tires and replace them without worrying about $$).

I think we can end this thread now; it's pretty much beaten to death.

No. Still alive, but you're welcome to move on.

Can we all agree on the following three items?

You need others to get in your opinion team in order to validate...uhm..lets see... your ego ?


All other things being equal, larger rims have a negative effect on a car's overall performance.

Oh yes. That being said. How much percent less ? Uh ? Can't remember... 2% or 5% less "overall performance" ?

Some people can feel that loss of performance.
JO8 can not.

Some people should take more time with their wife (or find one..), and less searching a way to get aerodynamic-lightweight valve cap on their car.



Ok, enough nasty words.

Guys... I must let you know sometin'.

There is 3 things very difficult to announce:

1. That you're in love with this independant next-door girl.

2. Broken up with the actual girlfriend to move next door.

3. Admit an error on an internet car club.


Guys. I must admit

I MADE AN ERROR.


It's a shame.

Completely hypnotised by the chrome of my 20's rims, when i did the comparison with my friend's stock RX-8, i didn't made it correctly. So i was completely misleaded and was just too happy to spread the world about my new discovery, so i didn't noticed that my friend's rx8 wasn't equal.

Handbrake was on.

http://www.digitalend.com/pics/nobody_cares.jpg

No. Still alive, but you're welcome to move on.



You need others to get in your opinion team in order to validate...uhm..lets see... your ego ?




Oh yes. That being said. How much percent less ? Uh ? Can't remember... 2% or 5% less "overall performance" ?



Some people should take more time with their wife (or find one..), and less searching a way to get aerodynamic-lightweight valve cap on their car.



Ok, enough nasty words.

Guys... I must let you know sometin'.

There is 3 things very difficult to announce:

1. That you're in love with this independant next-door girl.

2. Broken up with the actual girlfriend to move next door.

3. Admit an error on an internet car club.


Guys. I must admit

I MADE AN ERROR.


It's a shame.

Completely hypnotised by the chrome of my 20's rims, when i did the comparison with my friend's stock RX-8, i didn't made it correctly. So i was completely misleaded and was just too happy to spread the world about my new discovery, so i didn't noticed that my friend's rx8 wasn't equal.

Handbrake was on.

no matter what you say...your rims are ugly as hell!

trying to be neutral here, even though im one of the very frist few ppl got the 20's here in australia :rolleyes:

anyway, there ARE differences between factory 18's and aftermarket 20's..

- physical size difference, but you'd try to keep the overall diameter close to factory, therefore the speedo readings are similar

- weight difference, but you'd be surprised with today's technology, it is possible to get a set of 20's with similar weight to the factory 18's. with 20's, you are carrying less air, and therefore less water particles.... correct me if im wrong :p

- ride comfort, 18"s have thicker profile, therefore it'd be more comfortable than 20"s with thinner profile, it also depends on what type of roads you travel the most. there are certain roads here in sydney i will not get on, even if i have to make a detour.

- braking, there will be a difference, but not big enough to be dangerous. +2 size upgrade is very common amongst high-end car companies. my other mazda came with 14" factory steelies, and i have upgraded to 15's, then 17"s, then 18"s then 19"s. as soon as i got to 17" combo, i have done a minor brake system upgrade, and when i got the 18"s, i upgraded again, but thats a +3/+4 size upgrade, similar to the ones mentioned here from 15" to 18".

i have 20"x8.5" and 245/35 tyres all round, lowered springs and adjustable swaybars front and rear, im happy with it, and for me its a perfect daily driver combo. if im taking the 8 to a track day, then i'd stupid not to put smaller wheel/tyre combo on it.

some points mentioned in this thread are vaild, but some are shallowminded.
some ppl asked me why did i put 20"s on my car, i always told them "because i can". :rolleyes:

anyway, better go now :)

ps. JO8, the one with 22"s looks funny. he had 20"s front and 22"s rear combo, and the 8 sits on an angle. the rear looked weird. the main reason he did that is because he has a wheels/tyres business here in australia, and he uses the 8 as one if his promo cars ;)


Thanks Ezzy.

Probably the most intelligent comment here. Mainly because NEUTRAL. "Neutral skill" being weakness for most people here.

I agree with all your statements. It's funny to see that only 2 other members in here actually KNOW what is the feeling of 20's on an rx8... And aalllll the crowd drowning in a theorical discussion, without actual experimentation.

Even the guy who did the 1/4 mile race track did it with (different tires) on 16's and 18's :rolleyes:
That's what i call "NOT-NASA-APPROVED".

But most important thing: If i don't care about losing 0.2 seconds on 0-60, what is you problem with that?

I am not using the maximum potential of my car every time i get in, simply because i don't want to beat it up, i don't want to race with civic's on every street, i can't get "speed" feeling in this car ANYWAY. Sorry, but this car doesn't impress me regarding speed, and i don't want to get it modified.
How could i be impressed with it after being on my Busa for few hours ?

So i enjoy my RX-8 as a DAILY DRIVER with the go-kart handling fun part, which 20's and Toyo 245-35-20 tires improved over stockers.

Finally, (this message is for) NEW-UNBRAINWASHED Members who just wondering if 20's is too big. Answer is NO.

You CAN do it, and it's nice. If you don't like it, don't worry you'll be able to put the stockers back anyway.

But most important thing: If i don't care about losing 0.2 seconds on 0-60, what is you problem with that?


then why do you want a GTechPro? :p

I remember when threads like this used to get locked by moderators.. What happened to those days?

then why do you want a GTechPro?

Mugatu... Disapointing little hobbit,

It's all you found after scanning my text ?

You can do better. Try again.

I remember when threads like this used to get locked by moderators.. What happened to those days?

Suddenly, moderators learned that good, healthy forum needs some sparking discussions to keep life on their site.

I think that convincing a dumb ignorant (me and probably others) worth 10 pages of great discussions on a discussion forum didicated to the subject.

I dont have power in here, thats what happened.

Mugatu... Disapointing little hobbit,

It's all you found after scanning my text ?

You can do better. Try again.


well, when you say something like you don't care about performance and 0-60 times, but yet you want to get a GTechPro (which it's main purpose is to measure 0-60, 1/4 mile times, etc.) it makes you sound like a complete idiot.

i don't need to delve further into things, because you are doing quite well doing all the work yourself. :)

let it go people move on.