Open Wheel Racecar with Renesis engine
 

Eddie FourFather Hill here, with a Pro Formula Mazda open wheel road racer powered by a Renesis engine that I turbocharged and converted to methanol fuel.
https://cimg1.ibsrv.net/gimg/www.rx8...ef742f6b56.jpg
Big fun! I have seen over two gee cornering.
Cheers,

Eddie

Nice. Reminds me of the Diasio D962R with turbo Renesis, though it was a closed cockpit.


https://cimg4.ibsrv.net/gimg/www.rx8...2175d648a.jpeg

I like that a lot!!! Reminds me of the Mazda Star Racing Series cars!

https://cimg7.ibsrv.net/gimg/www.rx8...e07e19ee5a.jpg

As far as I have been able to determine, no one else has ever turbocharged a Pro Formula Mazda before. So we had to fabricate our own turbo manifold and exhaust, along with everything else. The cars come with sealed engines and password protected MoTeC ECU's, so we had to get MoTeC to unlock /completely wipe clean the ECU, and start from scratch with a tune. The original tune for unblown gas was not much help for turbocharged and methanol fuel.
But the result has been worth it.
Cheers,
Eddie

Eddie, that looks amazing! If there are any videos of it running I'd love to see them. Also, can't help but notice the GT in the garage. Welcome to the forum and thanks for sharing.

For any of you that don't realize who is posting, Eddie is a racing legend, on land and water.

Welcome to the forum Eddie!! Glad to have you here, as I'm sure you are a wealth of knowledge on many fronts!! Would love to see more pictures of the car if you had any available!!

https://cimg6.ibsrv.net/gimg/www.rx8...7752bd6807.jpg
Under construction-

https://cimg9.ibsrv.net/gimg/www.rx8...0e6845f8bc.jpg


https://cimg5.ibsrv.net/gimg/www.rx8...f9c6dc662b.jpg
Fuel cell and surge tank

Cheers,

Eddie

More pictures-

https://cimg4.ibsrv.net/gimg/www.rx8...836069fcba.jpg
https://cimg8.ibsrv.net/gimg/www.rx8...b8c42dff94.jpg
Cheers,

Eddie

https://cimg1.ibsrv.net/gimg/www.rx8...1f09943baa.jpg
https://cimg5.ibsrv.net/gimg/www.rx8...6a8c91874c.jpg

When the Renesis that is in the car now needs rework, I plan to try this Peripheral Port 329 RWHP in the car.

Cheers,

Eddie

Very cool setup ! Any details on turbo used , spoolup , power produced etc etc ?

What kind of RWHP does the turbo engine you are running now make?

He said "when it needs rework" so I'm guessing he plans to continue to run the turbo for the time being.

Yeah, deleted that. Thought that was it in the build photo, but now see it’s painted same color, but with a Renesis intake that I didn’t notice before. So obviously not the PP engine then.

Thank you for sharing the pictures!! That's an awesome car! Incredible that you built the car in house! A lot of time went into that and you really did a nice job with the car!

Here is one straight (out of the five straights) at Hallett Motor Raceway just west of Tulsa.

https://cimg3.ibsrv.net/gimg/www.rx8...ca30d99ecc.jpg

You can see from this data log that the car accelerated from about 40 mph to 126 mph in about six seconds, starting from Hallett's slowest corner in first gear and no-lift shifting through the gears into fifth before shutting off for the next corner. You can also see the boost follows the throttle opening almost exactly. Half throttle-half boost,and - full throttle full boost, - here about 190 kPa or around 13 pounds gage. Straight methanol fuel, no inter/after cooler used, or needed. EGT's lower than when it was unblown gasoline.

Fun Stuff!

Cheers,

Eddie

Some shots of the build.

https://cimg9.ibsrv.net/gimg/www.rx8...9fa6d47307.jpg
Takes lots of parts-
https://cimg4.ibsrv.net/gimg/www.rx8...cb762d44ab.jpg
The manifold we fabricated
https://cimg3.ibsrv.net/gimg/www.rx8...573c81d847.jpg

Cheers,

Eddie

Nice manifold ! If only there was room for something like that on an 8!

That acceleration is incredible and very linear!! That manifold is a work of art!

You can see from these shots why we had to fabricate our own installation- to snake through the chassis tubing, and there was just barely enough room. Challenging, but satisfying.

https://cimg7.ibsrv.net/gimg/www.rx8...cdaa8e3330.jpg
https://cimg6.ibsrv.net/gimg/www.rx8...cdda9f55ae.jpg
https://cimg6.ibsrv.net/gimg/www.rx8...b885a2131f.jpg

Thanks for looking,

Cheers,

Eddie

Looks like you changed the turbine housing. Which model BW turbo is that?

I've been through a lot of changes getting this to where it is now. I am now happy with a Borg Warner EFR 8474 with aluminum CHRA and external wastegate.

https://cimg8.ibsrv.net/gimg/www.rx8...759acd0acb.jpg
https://cimg6.ibsrv.net/gimg/www.rx8...f05fc8503a.jpg
Cheers,

Eddie

Nice, it be interesting to see what it’d do on the dyno some day ...

I saw 334 at the tires very early in the project, with the smaller turbo and less boost than I'm using now.

I pay more attention to the acceleration of the car than I do dyno numbers, and 40 mph to 126 mph in six seconds is a good place to be, along with lower EGT's than gasoline, and very safe Lambda.

Cheers,

Eddie

Now that is impressive!