Yaw power already has a Renesis on the dyno!
 

It appears that Paul Yaw is building a supercharged RX-8 to race. This should be pretty cool when its done. They are currently dyno testing the engine and setting a horspower goal of 450! Here it is on the engine dyno.

http://personal.riverusers.com/~yawpower/renespic.html

bastages! i want that

mike

kewl!

This is where the RX8 will start to get interesting ... a new motor to play with !

Kick ass! Can't wait to see the results. I wonder if when we'll start to see aftermarket FI kits for the RX-8.

do they make superchargers for FC NA's? does anyone on the forum have one?

Damn damn DAMN!!!! I want one of those motors to play with!!!!

Atkins does.

:bigthumb:

i haev see 2 on the streets already! :D (not supercharged obviously)

I haven't even seen one, but I wanna hand one it's ass just to show it whose boss.

Thats awesome that someone is already working on race applications for the Renesis though, maybe with a big enough following, we'll see a new 7!

Twin turbos vs. an NA? You better be able to hand it it's ass. But I'd bet money without those turbos it would be the other way around real quick ;)

stock for stock.
FD vs Rx-8

it would be a close match on the 1/4 mile.

I thought the RX8 was at least 1 second slower

The 8 would be a little slower but considering it is basically the same motor without turbos it is very impressive. When Paul gets a supercharger on this motor it is going to make some jaws drop I can assure you.

:rock::rock::rock:

Its nice to know that the bolt pattern is the same..... but that was prolly a given anyway.

someone on the rx8 forum recently dynoed their 6spd rx8 at Pettit. It put down a mere 173rwhp. It will be interesting to see if Yaw power gets any closer to the factory claimed output (maybe the rx8 just has drivetrain loss of 30%???? ).

Has anyone thought about side/peripheral exhaust and if its even possible?

:eek: I hope they were fom japan otherwise thats a very new motor to be putting on a dyno !

You can break in a motor in 2 days if you're motivated enough :).

According to the owner it had over 600 miles on it.

http://www.rx8forum.com/showthread.p...5&pagenumber=1

He is supposed to post the sheet this weekend.

I agree, you can break in a motor extremely quickly if you really want to. One day is all it takes :)...2 just for kicks :D. Btw guys...his car is AUTO so no fear...the power is SPOT ON. Remember the auto cars only have 210bhp not 247. So 173 is a good power number. Oh wait...now he's saying he has a manual tranny (I'm guessing 5spd...no matter how you take it he can't have a 247 engine that puts down only 173). He hasn't shown pics of the car OR the dyno so I'm getting very skeptical... :confused:

The manual is a 6 spd

Nope. the 8 has been tested to a 14.5. The FD lays down a high 13.

read on that car I'snt auto

Read on :D, he corrected himself (why anyone would do this rather than editing the original post is beyond me).

In all the mag tests they were using prototype cars thast supposedly had a problem. There is a set of ports that open up at 6250rpms and supposedly they werent coming on. I wonder if that is still a problem? Did the dyno go flat around 6250? Thats what was happening to the prototype cars. They were saying it was causeing them to be right at 30rwhp low. Interesting how 15% drive loss would put output to around 204 and this guy at Pettit dynoed 173 which is 31rwhp low.

Maybe his 6250rpm intake port wasnt opening up.

STEPHEN

True, but the owner seems to be somewhat sensible/knowledgeable. I think he would have jumped on that explination if the sheet went flat or fell off. Even if he is oblivious I imagine Cam or one of the other guys at Pettit would have recognized that problem.

Anyone want to call Pettit and find out what their take is? I would but I'm out of daytime minutes and not in the market for a rx8.

Dont forget the RX-8 is available in TWO power levels
210fwhp & 248fwhp - either is available w/ the 6 spd
but auto is only available w/ the 210hp motor

He has the 6 port 6 speed.

How do you open up these "sets of ports" based on rpm?

I'm curious since the intake ports are part of the rotor housing.


J

the exra ports are opened via a stepper motor on the manifold ... its very similar to the old 6 port sleeve arrangement.

one thing that sparked my intrest is something i have seen able ibara do for years and he told me a long time ago that it was for space (which i believed at the time). anyone ever see how he (on BOTH the r100 and the FD) make the TB face the front of the car and have the *elbo* face the TB that way? do you knwo what i am saying? i dont know if they both know something i am not aware of, or if mazda designed it that way to have the volume of the smaler *plenum* made up by lengthening the runners AND for space???
note: (i have not done any testing to see the difference of volume, just quick observations that the 8's looked smaller overall)

i hope some of that made sence....


sorry this is a bit off topic. i coppied it from another post/forum but thought since this was an active thread... :)

Actually its nope to you :). Few drivers are good enough to pull off high 13 second timeslips in a stock FD. VERY FEW.. They run low 14's stock even if your a good driver.

They were rated at a 13.9 stock for the RX-7 and a 14.5 stock for the 6 speed RX-8.