19 x 8.5 x 38mm offset all the way around

with

245 / 35 / 19 tires???

 

its fine.

I think I'm guna compile my own guide to help people. lol. this thread is too big to look through for most. I'll make a one post guide that will help people if i ever get around to it.

 

Thank you much. And you're very right. I felt bad posting because I assumed my question had been answered somewhere in the thread, but I really couldn't find it. But it's great that there are people out there who are willing to share their knowledge with those of us who aren't as savvy.

 

im sure this has been anwsered somewhere. im wanting to do 20s stock suspension, not wanting to roll the fenders or spacers. wanting to go as wide as possible in rear any suggestions on offsets and tire size.

 

stock suspension won't matter because it will bounce enough that if you were to rub with a stiff/lower suspension, it would still rub anyway.

your question is too vague for me to answer. you can go 10.0 in the back if you want with a +40 offset, 265/30/20. you can do 10.5 in the back but your tire option is limited unless you stretch. etc...there's too many options and i can't think of them all.

 

wheels = 20 x 8.5 with 40 offset
tires = 255 / 30 - 20

all corners
Tein Stechs already installed with 255 / 40 - 18 and no rubbing at all even fully loaded.

 

you'll be fine in the rear

any rubbing you get up front will be because your diameter is bigger than OEM. refer to pdxhak's rubbing thread for info. https://www.rx8club.com/series-i-wheels-tires-brakes-suspension-55/wheel-well-liner-rub-141153/

 

So reading through the thread, it appears that this will work assuming the calipers clear, etc. So what should I be looking for in the rims and tires? I'm looking for lighter weight for better efficiency and smaller tires are also cheaper.

Edit: Did some shopping and think I like the Kosei 17x7 50mm offset. Will the offset clear the rotors? Any thoughts or anything I should be aware of? Besides the skinnier width.

 

This may sound stupid but I'm a coward...

I'm thinking about wheels that are 18x8.5 with a +35 offset. The recommended size is a 225/45/18 but since it's the same OD would 255/40/18s work nicely in all corners as a daily driver?

 

18x7.5 +38 all around with 225/45/18?

 

hey would 17x8 with 45 offset fit? i know that it is obviously smaller than the stock rims, but the reason i'm considering it is for weight purposes. if at all possible i'd like to get some rims that look good but are also better for my car. my friend (fellow 8 owner) told me he has heard the lighter rims the better due to our low torque.

i am considering the motegi traklite 2.0 rims http://www.motegiracing.com/wheels/d...20lip&section=

lastly, could somebody please post pics of rx-8s with 17" rims installed? i dont want to pursue these if it's going to look too ridiculous/small compared to the car.

 

17x7 +50 will fit. you can run 225/50/17. It should sit the same as the stock wheels. Clearance of rotors do not matter, clearance of the brakes do. For that you need to make sure the spokes of the rim will not touch the caliper.

Yes, 255/40/18 will work. The rear will be fine, the front I can't say for sure. If you are lowered, the slight increase in tire size may be enough to cause you to rub the fender liner. It's only natural that you increase the tire size if you increase the rim width. Allows for more traction and grip.

 

It'll fit.

Yes that will fit. position will be similar to stock depending on your tire size. You can do 245/45 or 255/45.

My opinion is 17s are too small aesthetic wise. People who track their cars tend to stay 18s for looks and performance. Do a search for 17s and decide if you like it.

--------------
Note: some of the past few people have asked for sizes smaller than stock. there is no reason to do so unless it's for the snow. Theses specs also aren't aggressive looking either if that is what you are going for.

 

Ngo, you are awesome, thx for the info! And I did mean brakes when I said rotors... least I had the picture of the brakes in my head

Now to scrounge up some $$ and find a dealer to sell me the rims for cheap... : \

 

hey NgoRX8 thanks for the info. you're awesome... taking over the thread helping everyboyd who is clueless like me =P haha.
just a couple more questions: the 17" rims i was considering weigh only 14lbs each and thats mainly why i was considering them, do you think rims that light will actually be substantial enough to show any kind of significant performance imporvements or am i just wasting my time on that and is rim weight really not as big of a deal as im thinking it is? btw what is stock rim weight do you know?

*this doesnt have to do with rims but i was also wondering about this: i swaped all 4 rotors and put all new brake pads along with painting the calipers red a while ago. the rotors are dimpled and slotted, the brake pads are semi metallic, and the paint was high temp caliper paint. however, i have put near 500 miles on the car since then but the brakes STILL squeak quite frequently... is there something i did wrong that i need to have looked at or is that just normal? it's really been bothering me and i dont think brand new pads should be squeaking. please tell me your thoughts on this. thanks a ton!

 

dimpled and slotted? who makes them?

but the answer you need is do a search for brake bedding. follow the steps. should take care of you noise issues.

but you dont mention the manufacture of the pads, but it is a start..

to the wheel question. yes less is more. but you have to look at tire weight and fit.

if you are not a the top level of auto x or track time. money would be better spent on learning..

beers

 

NgoRX8, I was thinking of building statue in your honour; would you prefer in it bronze or marble? Perhaps carbon fiber in keeping with the times...

 

the stock wheels weighs approximately 22 lbs. there are different tire weights as well so you aren't really going to get that full 8 lb advantage. The car will feel different with less unsprung weight though.

check out this thread for some real nice info
https://www.rx8club.com/series-i-wheels-tires-brakes-suspension-55/effects-wheel-size-weight-performance-51865/

Haha, carbon fiber sound nice. Really though, I'm just here to help. I like helping when I can around his forum. Other people have taught me a lot as well, so I see it as giving back. Nothing to it. Thanks though

 

Looking for best size for the 18x9.5 +45 RPFs. I know autoXers use them but am never sure if they're able to due to camber adjustments. Would like to know what size 265/275 will be flush and not require rolling the fenders front or back on a car lowered on Tein h-Techs.

I believe 275/35/18 will work but am willing to drop to 265s if there is any concern. FWIW Tire Calculator came up with this:

• Package is 20 mm (0.8'') closer to suspension/brakes components. Make sure that you have enough room for that. If not, consider lower offset, narrower tires or using spacers.
  
• Fenders Package will stick out 30 mm (1.2'') farther. Make sure that you have enough room under the fender. If not, consider narrower tires or higher offset.
  
• Wheelwells 100% clear (leaves even more room than OEM)

 

I am planning on lowering very soon and getting some new rims but I want to find out if what I want on the car will fit. I wanna do 18x9 in the front and 18x10 in the rear. What's the biggest offset I can do.

 

I'm looking at getting the Advan AVS T6 wheels at:
18x9 +45
18x10 +42

I have the RacingBrake oversized 13" BBK on the fronts. Any idea if this will work?

Would this tire fitment work for no rubbing f:265/35-18 and r:275/35-18?

 

275/35/18 will work just fine. The tire is smaller which is why it allows for clearance from rubbing on the front and the offset it just enough to not need rolling in the rear. Some people do roll it however just incase.

 

This is going to depend largely on what tire sizes you want to run. If you run a fatter tire you will go with a slightly lower offset.

For the front you can run a 245/40 tire with about a +32 offset. If you want to run a 275/35 tire on it you'll need a +45 offset.

For the rear you can run a 275/35 tire down to about a +42 offset. This will depend on your camber. +45 if you want to be safe.

I do not know if the racingbrake's will fit or not because it all depends on the spokes.

Wheels look good, go for a 275/35/18. It is the bottom line number for clearance w/o rolling or shaving your fender if you are lowered. You can go 265/35/18 and it will all clear no problem, but your speedometer will be 2.5% to slow.

 

18X9.5 35 offset

on 275/40ZR18

that's all around

UGH and i'm lowered on HKS hipermax RS

 

Not guna fit easy up front. Rear would be fine with a roll.