They really didnt say. That was kinda my point

 

Keep to the facts and try not to make stuff up. There is no data to suggest that the pettit is safer easier than a turbo or that turbos tend to die off at 9K vs. the SC.

Properly sized turbos are making much more power and torque than SCs all the way up to redline.

There is opinion both ways so try not to make SC vs. Turbo type comments.

 

That's still a tall order because most CHRAs are spinning so fast by that time that the amount of heat they'll generate is gonna be of negative effect.

Having said that.. Whether you go SC ot Turbo if you plan on revving into 9k+ you'll probably also need a very efficient and large FMIC.

 

Agreed Heat is a negative effect regardless of RPM. And for a turbo it's more about airflow rather than RPM correct? So as long as it's sized with your goals in mind to flow the right lb/smin you can still have excellent top end performance. I'm not trying to get in to a detailed discussion on the topic just point out that it's important to size the turbo properly for a rotary based on airflow requirements and not think it's equivalent to a 4 cyl or small 6 cyl piston motor.

The Greddy unit runs out of breath up top because it's too small for our cars. It makes great low end boost and power though.

 

That's how it was with my Z32TT also, they'd get too hot.

So what's the ideal turbo for a 9-10K redline?

 

you need to size the cold side of your turbo around mass airflow, not rpm

 

If i want to make power for what im doing, i would go and rebuild the engine, upgrade the Apex Seal from Esmeril if it ever comes out lol hope it does. and then Port the engine. Then slap on a turbo and tune it. hmm fly wheel and clutch for sure haha and also bigger injectors and upgrade the fuel system and ignition.

 

mis pelotas son tus ohos, mi verga es tu narice.

 

Which will change from turbo to turbo. BUT since we're talking abotu a stock motor then the answer is...

 

Would you mind me asking when we said we were rebuilding the engine in order to attain more than 414whp? Or the fact that there was engine failure when generating that power on a stock engine?

The only reason we opened the fully operational engine (After a year running at 16psi, 400whp range) was because we needed to test our new apex seals...we didn't want to launch a product without testing it and I am sure people in the forum appreciate that.

I have never said you can't get to 500whp on a stock internal engine and keep it there reliably...you just cant make any mistakes in the tuning process. Once its tuned there is no reason for it to break unless you run out of gas while generating 500whp and it detonates. Regardless....and reliability aside, anything above 450whp would require higher octane fuel, built engine or not, because our compression limits the engine in that aspect. A switch to E85 is ideal since you can get it cheap at the pump...after that....even 500whp is surpass-able on stock internals.

Best regards,

Chris

 

I never suggested you said it caused the rebuild. I simply pointed out you never said it didnt either. Unfortunately with the few details you guys release I am given very little evidence to believe otherwise and am forced to make my own guesses as to the happenings between updates. I read that entire thread and that is the impression I got.

 

Search up on this forum on some of the boosted build kits and turbo sizing. There is a ton of good information on this already published on this forum in this section.

 

Has anyone tried using TII rotors on the renesis to lower compresion and allow for more boost reliably??? i know there are older 13B PP's running renesis internals for higher compression so...dont mean to thread jack just trying to find alternatives for this engine......

 

/\ word is that rotors from other series don't work very well . Not sure on the details though - something to do with side seal position and side clearance of the rotor.

 

from pettit racing

________
Nexium lawyer

 

Maybe I ought to call around and upset them?

 

/\dyno or it didn't happen lol

 

wow,

that is a crazy silly guess.

stop trolling.. shoot us a note when you have a car..

beers

 

^maybe a LEVEL10 Tranny he means...

 

I think you'll find a few competitors that'll confirm it for me, as we go flying past....

 

I fully believe Petit can have a Renesis that does about 210 at the wheels. Nothing out of the ordinary about that. The engine can easily do it.

As for TII rotors in a Renesis, you can't do it. No need to get into details again. Just trust me. Don't try it.

 

So with that being said when a Renny is turbo' you gotta drop what kinda gas you put in the car ? Sorry for the rookie type question but I assumed you would maintain the same type of gas if not go higher ? Is that what everyone means by it being to rich ? Once again sorry for the rookie questions

 

Nice bump. Don't even pay attention to that post because he is full of ****. 500WHP on Renesis is a pipe dream, hell anything north of 400WHP for any decent length of time is a pipe dream, built or not. The turbo kit his company sold was the biggest failure of any RX-8 turbokit.

 

Ditto. Go over to RX7Club and read the questions he posts over there. He clearly had no business trying to sell anyone a turbo kit ...