Ok, the kits are out, people have thoughts of 500WHP 8's dancing in their heads, and many folks think you can make more power buy just turning up the boost level.

So, I'm getting a lawnchair and a cooler full of beer out, sitting down and watching the mayhem begin. For those that would like to join me, how long til somebody blows an engine? Not that I wish this on anyone, but somebody is going to get greedy (not Greddy) and pop a good motor. I guess we need a source of housings for port testing, so its not all bad...jk

with the side exhaust ports, you're just about guranteed to need to replace rotor housings with every blown motor. :(

I will place a bet that at least the first 5 people will have transmissions go before the motors. No way they can hang with that kind of HP. The first clutch drop and their gone. Either tranny or clutch.

I am going with a 5 speed box from a 3rd gen rx-7. I think if they do break(apex seals) that it would not damage the rotor housing because it has no place to escape to cause damage. I think they will just fracture all over the place but I could be incorrect.

Ok, the kits are out, people have thoughts of 500WHP 8's dancing in their heads, and many folks think you can make more power buy just turning up the boost level.

So, I'm getting a lawnchair and a cooler full of beer out, sitting down and watching the mayhem begin. For those that would like to join me, how long til somebody blows an engine? Not that I wish this on anyone, but somebody is going to get greedy (not Greddy) and pop a good motor. I guess we need a source of housings for port testing, so its not all bad...jk


I'll join you (since i don't have cash for a turbo)..but i am wondering what knida beer we are going to be having:D

with the side exhaust ports, you're just about guranteed to need to replace rotor housings with every blown motor. :(


where'd you get this from? at a low level you should need to replace anything with a blown motor (well the clutch but that depends on how much more torque it's putting out). just what i've understodd from it. and at a lower level the tranny should be okay as well (like 250ish whp).

but doing high rpm bombs (no slip) is bad for any tranny. so it' s agood thing i don't drag or stoplight race:p

I say two months....I am going to side with slims8, I really believe that once people start hammering on their car that our drivetrains are going to start failing. That has alwyas been a source of contention for me. And on a side note, I also believe we will see failures when someone begins to manipulate the low boost setting after some time behind the wheel...There are probably some that will be content with the low boost stock setting, but many more will start upping the boost to find the limits of the system. And then we will see the fuel delivery issue having to be dealt with. And the first posts dealing with rebuilds.

pass me one of those beers? ill say 3 months.

I have already seen a renesis blown from forced induction, so where is -4 months on the poll?

where'd you get this from? at a low level you should need to replace anything with a blown motor (well the clutch but that depends on how much more torque it's putting out). just what i've understodd from it. and at a lower level the tranny should be okay as well (like 250ish whp).

but doing high rpm bombs (no slip) is bad for any tranny. so it' s agood thing i don't drag or stoplight race:p

I am not sure what you are trying to say? Guitarjunkie is talking about because of the side exhaust ports there is more chance of the rotors damaging the housings upon detonation, the most likely cause of a blown rotary motor with forced induction. The housings are the parts of the engine that house the rotor in which it spins. If they are nicked beyond spec then they have to be replaced with a rebuild.

Why would a clutch need to be replaced with a blown motor? Maybe you are thinking about doing performance modifications while the engine is blown before you put the motor back in the car?

well i saw those housings when we were at RB also but for this thread i pretty sure he meant owners who are just now going FI. unless, Q, you are talking about seeing someone else's?

nice, alot of us do have sick senses of humor :D.

Personally, I like a good micro brew, like St. Arnolds Amber Bock here in Houston, but since this is a more international group, how about a cooler of Bass or Guiness?

Three months for me....and odds for the engine/transmission double????

3:1.... :D

Gomez.

6 Months - I'm optimistic

Does Atkins have apex seals ready for the 8 yet?? :)

Some entrepreneur out there should probably get cracking on an alloy gearset for the Aisin transmission. Either that or a kit for a T56 swap. :p

While we're talking about major modifications, maybe some lower compression rotors are in order too.

I'll sit w/ ya guys since im scared and i dun wana blow up my baby!!! mind if i bring my pipe though?

My suggestion to anyone that is going FI is get the car over to an experienced rotary tuner. The first thing is to make sure that the base maps on the Emanage are safe. Get it on a dyno and check the A/F. I have been tuning rotarys for a few years and I never have a car that uses the same settings.
If your motor happens to lose a seal be prepared to spend some money. The seal is probably going to take out the rotor housing with a possiblilty of taking out the end plate and rotor. Also a good chance of it going thru the turbo and causing damage.
Adding a turbo is a whole new game and the margin for error goes way down.

Jason

Well, as some of you know, I am in the process of installing the Greddy kit on my RX-8. The only problem I forsee is with the clutch life going bad a lot sooner than normally. I've smoked the clutch a couple times (wasn't paying attention one morning and feathered it out at 7500rpm!). I don't plan on going higher than 6.5lbs of boost. So I don't see the engine being blown. The transmission parts other than the clutch will be just fine, especially since I don't drop the hammer but once in a blue moon. You have to realize that there are other forum members that currnetly have turbo or 75 shots of nitrous in their 8's with no trouble. Again, time will tell. We'll see what happens.. There wasn't a catagory, but I don't expect that I'll blow an engine, but I do see my having to replace the stock clutch with a heavier duty clutch withing the next 4-6 months.

6 Months - I'm optimistic

Does Atkins have apex seals ready for the 8 yet?? :)
not the last time I checked their site.

Im wondering if therye ever going to offer P & P for the 8?

I saw Kathy Atkins was registered on the Rx Tuner (mag) forum.

Sub 1 month I reckon.

The people getting the kits are performance orientated enthusiasts so the need for speed will be fueled by a curiosity to up the boost.

you guys really think i'll blow my engine in less than 1 month? I'm shocked.. and willing to take bets on it ;) How about a new set of summer tires? ;)

I don't think anyone is pointing at you specifically, philodox.

I put in my vote at three months...and I'll take a Guinness, thank you.

I'm hopeful someone comes out with lower compression rotors for our everyday, street applications - and I'm very curious to see the outcome of Richards Axial flow project...

I think I will grab that lawn chair too and wait until my baby is paid for. So in about 4 years from now they should have this turbo/supercharger stuff all worked out and working well in about 4 years. Then I can really get into it, adding a turbo and a aftermarket clutch. I know, I smoke my clutch way to much as it is, not closly looking at the rpms...I'm probably going to need to get a new one anyhow, without having a turbo, the way I drive. I need some racing lessons....***sigh***

Some stupid kids gonna get this and smack a MBC on and blow the sucker sky high.....it's just a matter of time. :)

I will place a bet that at least the first 5 people will have transmissions go before the motors. No way they can hang with that kind of HP. The first clutch drop and their gone. Either tranny or clutch.

What makes you think that? They have to be built better than my stock Protege tranny, which (knock on wood) is holding up. Guys put well over 300hp through them, and they're not even made well.

I have already seen a renesis blown from forced induction, so where is -4 months on the poll?

How much boost? What kind of EMS?

Well, Unorthodox makes a nice flywheel as well as the lightened mazdaspeed one, however I don't see any aftermarket reinforced clutches yet.

UNORTHODOX RACING Flywheel With Integrated Counterweight and Hardware Mazda RX-8

Regular price: $699.00

However, the WRX is the same beast in respect to the tranny, which is the weakness of the subaru's. The motor is so plyable with power upgrades and is really solid but it eats five speeds for breakfast. Just ahve to wait for clutch's to start coming out and hopefully, reinforced gears.

Did the 93 RX7's have 6 speeds? Maybe one can be transplanted as existing parts for them are plentiful.

Actually, did a little diggin and it seems SRmotorsports is making a clutch that takes 100% more power then the stock clutch:

http://www.shaneracing.com/RX8_Clutch_Flywheels.html

Also, ACT is coming out with an RX-8 clutch soon to, just a matter of time before parts are available to fix all of the 8's slight design holes.

i think you should add a little more time to your poll.. unless someone does something really stupid.. these stock turbos should last a while..i would guess way more than a year...assuming people don't f*ck around and do stuff they shouldn't.. like ungodly upping the boost.. but..sad to say..i'm sure someone out there with no brains and money burnin a hole in their pocket is going to try it....

...when one does go... what do you think it will be like? big boom? pop fizzle? whirrrrrrrrrrrrrrrrr...r..r..r....cough? any ideas? or maybe one that's boosted AND juiced...hmm...

Oct 28, 2003 - present = 3 months. ~1500 miles at 7psi of boost, daily driven... I'm into aggressive acceleration and wastegate chatter, but I'm not an aggressive driver, so who knows...

Rob

It all depends

At a 10:1 compression, the engines should be safe for up to 12 psi of boost, if tuned properly. I foresee a whole lot of other problems like heat wear and tear and transmission, but as stated, the most common problem will probably be the clutch.

GReddy wouldn't release a kit without proper durability testing, so I'm betting that those with the 5 psi kit that leave it there with proper tuning shouldn't see any problems at all, and might actually get better gas mileage since they're tuning the fuel maps and leaning them out.

Wow so it's been a month, how many people were wrong?

I think people with the stock flywheel are more likely to hurt the transmission than those who go lightweight (or light interia)

Its the stored energy from the flywheel that is killer on the transmission from hard lauches and that stored energy is the same whether it is a NA or turbo. In simple terms, stored energy is based on launch RPM (squared) X the moment of the flywheel.

Blown engines? don't know, but the transmission will hold for 5-7PSI turbo apps as long as that damn stock flywheel is replaced.

-Mr. Wigggles

BTW, my answer was 1 month. :D

I think people with the stock flywheel are more likely to hurt the transmission than those who go lightweight (or light interia)

Its the stored energy from the flywheel that is killer on the transmission from hard lauches and that stored energy is the same whether it is a NA or turbo. In simple terms, stored energy is based on launch RPM (squared) X the moment of the flywheel.

Blown engines? don't know, but the transmission will hold for 5-7PSI turbo apps as long as that damn stock flywheel is replaced.

-Mr. Wigggles

BTW, my answer was 1 month. :D

Lol.. I've had mine in for more than a month and for 1000+ miles. No major issues other than operator error ;) i.e. catch can if you were following my install thread. I am surprised my stock clutch hasn't blown yet. It's not slipping at all, and it even still grabs in neutral when I let out the clutch pedal, so it's still in top shape. Maybe the stock clutch is better than we originally thought.

i would be satisfied with 325bhp NA it just feels safe. i seen an rx8 maxxed out at 450 rwhp an tunned NA what a beautiful sight.

Well I almost blew mine on the dyno when it stareted to detonate at 4K. Turned out I had bad software. Returned it to Greddy, and ran it again. No issues this time, & it seems to run just fine. Kind've hairy there for about a sec. or 2.

i would be satisfied with 325bhp NA it just feels safe. i seen an rx8 maxxed out at 450 rwhp an tunned NA what a beautiful sight.

how ? what was on it?


In case you haven't noticed, NA has no torque, midrange is like stomping on a squashed tomato, building up NA is only going to give LESS useable midrange

The beauty of a turbo is that it hits hard in the midrange where this car needs power - low end and top end are fine.

As far as stock flywheel being more stressful on the tranny - no way. I've seen so many cars blow their trannies once they start swapping out flywheels because they rev so quickly the transmission is placed under a lot more stress off the line, and the trannies just dump.

Plus, and I've said it in 100000 threads, a lightweight flywheel destroys the car's driveability. I will never EVER put one in any of my cars ever again.

here check it out it uses 8 fuel lines. but i stand corrected that is 450bhp. check out www.yawpower.com home page go to renisis developement engine

Plus, and I've said it in 100000 threads, a lightweight flywheel destroys the car's driveability. I will never EVER put one in any of my cars ever again.

Then, in 100000 threads, you were wrong; at least about the driveability of the -8 with a lightweight flywheel. :D

here check it out it uses 8 fuel lines. but i stand corrected that is 450bhp. check out www.yawpower.com home page go to renisis developement engine

They stated 450hp as a goal, not as something they've achieved yet.

but.. they said that it is a very reachable goal i cant wait to here more it the near future. also check out the 13b they are building for the rock crawler very toquey for a rotary engine

SR motorsports seems to have flywheels and 2 different levels of clutches available with higher ratings

http://www.srmotorsports.com/RX8_Clutch_Flywheels.html

Seems kind of pricey, anybody have this flywheel?

how ? what was on it?


In case you haven't noticed, NA has no torque, midrange is like stomping on a squashed tomato, building up NA is only going to give LESS useable midrange

The beauty of a turbo is that it hits hard in the midrange where this car needs power - low end and top end are fine.

As far as stock flywheel being more stressful on the tranny - no way. I've seen so many cars blow their trannies once they start swapping out flywheels because they rev so quickly the transmission is placed under a lot more stress off the line, and the trannies just dump.

Plus, and I've said it in 100000 threads, a lightweight flywheel destroys the car's driveability. I will never EVER put one in any of my cars ever again.



You are very very wrong my friend...

OK....
It has been 3+ months for some turbo installations.

Has anybody had, or heard of any major parts breaking yet?

nope

Definitely a good sign. I expected by now someone would turn up the boost a bit too high and then...pop.

That would make me wrong about my guess on this thread.

i guess ill be the first to admit i blew mine today.. lol AAHHAH















j/p :)

nope

Yes you are!!!!

2000+ miles and still going strong at 8psi.

-Jon

I have to admit...I thought we'd have some action by now. I think it shows how conservative the Greddy tuning is on this unit. Good on them 60Hp and good price...and reliable performance......lloks like I'll have to get on the bus

(I am still waiting for RP though...I'm interested in the AFSC)

Philo, are you at a constant 8PSI, or is it only 8PSI during the lower revs and tapering off at the top?

Philo, are you at a constant 8PSI, or is it only 8PSI during the lower revs and tapering off at the top?

between 7psi-8psi all the way to redline. My boost controller keeps it there.

Hey Philodox, where does your boost come-in at, and you say you have 7/8psi all the way to redline, 7/8 psi from where to where. Just trying to compare to mine...

between 7psi-8psi all the way to redline. My boost controller keeps it there.

What settings do you have for your Greddy boost controller?

I have blown mine a few times now since I put on the turbo -- blown the coupler off the turbo that is. I even replaced all the GReddy connectors with metal clamps as per MazdaManiacs suggestion.

Over 1000 miles and no problems -- still need to get the tuning perfected however. I am set right on 7.5 lbs. right now.

Hey Philodox, where does your boost come-in at, and you say you have 7/8psi all the way to redline, 7/8 psi from where to where. Just trying to compare to mine...

My boost starts to come in around 2k RPM. I have full boost by 3250 RPM.


What settings do you have for your Greddy boost controller?

Gain is 5%, Boost setting at 55kpa. If i set the gain any higher, I get bad boost spikes.

Boost setting at 55kpa.

On the Profec B specII, the SET boost is in %. So do you have that at 55 or are you talking about a differnt setting.

4+ months now since the 1st turbo installs -- and I still have not heard of any "blown" blown rotaries.

In the poll, 64% felt the RENESIS would go no longer than 3 months.

That is because the poll was largely voted upon by people who are clueless, not to mention naturally aspirated.

also probably people who go out and beat on their car, and expect everyone else to do the same, but not realize that most people putting their car under "pressure" (haha, i made a funny) understand that they are spending 4000+ to void thier warranty and so are going to not try to destroy their investment.

How many naturally aspirated RX-8 owners does it take to screw in a light bulb?

Eighty two! One to turn the bulb, and eighty one to lament that it'll just blow in three months!

::baddum bum::

Thank you, thank you. Is there anyone from http://www.nasioc.com/ in the audience...?

^^ I presume you are here at the Velvet Lounge all week??

Shouldn't the joke be:

Q: How many RX-8 owners does it take to install a turbo?

A: All of them - one to install it and all the others to flame each other about it on the internet.

hehe - all the others to obsess over your BOV. lol

If I string it on a chain and hang it around my neck, will that work?

Nope.

What if I weld it to the hood where the M badge is?

::sigh:: Nope.

Can I touch yours?

Yeeesh!

^^ I presume you are here at the Velvet Lounge all week??

Shouldn't the joke be:

Q: How many RX-8 owners does it take to install a turbo?

A: All of them - one to install it and all the others to flame each other about it on the internet.



LOL, classic

if it wasn't true it be even funnier :rolleyes:

you guys are crazy :cool: , I am not going to sit here and read about your stupid polls :o .. damm it I am going to be standing behind :rolleyes: ... sucking down all the beers I can :D while you guys talk :p