Official Sasquatch build thread Part 1, Cosmo Rotary Turbo... Then boom... Options

[Mike Bellis]

Many of you know my car. It was Steve Malmz's car he found in a yard as a roller. It was a former SCCA club racer. Malmz named the car Sasquach. Malmz put a V8 in it and drove it until his priorities changed. It was sold to a guy in Kentucky (unknown name), he regeared the transaxle and drove it little. He sold it to a PCA member in Irvine, CA. That guy used it as a DE car until I purchased it. I installed an EFI system and drove the crap out of it. Recently my clutch went out and I decided it was time for a change. The V8 is going to another member. My engine choice is Top Secret, under wraps until I make my final choices. a Turbo Rotary. I'm taking a twin turbo and converting it to a single large turbo. This mod keeps it simple and increases horsepower. My new license plate will be "914 TT".

The car has 930 suspension and brakes. 930 steel flairs grafted on, a total of 8 flairs were used. Two per corner to make up the radius. There is a roll cage with removable door bars. The cage is tied to the rear suspension but not the front. The bodywork ant paint are 10+ years old and the car is several shades of white. The chassis is super solid. Only minor surface rust has been found. The Original owner/racer installer a stiffening kit and various braces. The suspension console is unusual. Steel plats replace the inboard pivots. 1/8" & 1/4" plate steel reenforcement plates are surrounding the console. A 1" bar ties in the console to the firewall.



Here are the first pics of me stripping paint from the engine bay and the unusual consoles.

[Andyrew]

Holy Shit, 2000CC? how many do you use? for the A4, 4ea 1k CC injectors an push 700hp..

HKS boost controller? Which one? We have an Apexi AVC-r boost controller on the 951 and the A4. Old technology but it works like a dream..

[Mike Bellis]

Holy Shit, 2000CC? how many do you use? for the A4, 4ea 1k CC injectors an push 700hp..

HKS boost controller? Which one? We have an Apexi AVC-r boost controller on the 951 and the A4. Old technology but it works like a dream..

2000cc were recommended by TurBlown. The company that recently made a 650hp street driven WRX STI that runs a Benz Kompressor and a BIG turbo sequencialy. The Rotary runs 4 of them at 50% duty cycle. I thought they sound big as well. But I derfer to the expert on this one. They also recommended the Turbo choice. I should also mention that these engines typically run only 35psi of fuel and not 45psi. The stock engine runs 2 x 1600cc and 2 x 850cc injectors. I could make my HP number with the stock injectors but they would be at the limit of their duty cycle. Remember injectors are rated at 100% duty cycle @ 45psi.

My boost controller is the HKS EVC 5

[Andyrew]

Holy Shit, 2000CC? how many do you use? for the A4, 4ea 1k CC injectors an push 700hp..

HKS boost controller? Which one? We have an Apexi AVC-r boost controller on the 951 and the A4. Old technology but it works like a dream..

2000cc were recommended by TurBlown. The company that recently made a 650hp street driven WRX STI that runs a Benz Kompressor and a BIG turbo sequencialy. The Rotary runs 4 of them at 50% duty cycle. I thought they sound big as well. But I derfer to the expert on this one. They also recommended the Turbo choice. I should also mention that these engines typically run only 35psi of fuel and not 45psi. The stock engine runs 2 x 1600cc and 2 x 850cc injectors. I could make my HP number with the stock injectors but they would be at the limit of their duty cycle. Remember injectors are rated at 100% duty cycle @ 45psi.

My boost controller is the HKS EVC 5

Hmm I guess that explains the injectors a little bit... As a comparison, I am running 440CC injectors on my car, stock is 200 or less IIRC. If I raised my boost to 25psi and ran ~ 375hp I would be maxing out my injectors. Its just crazy to me how much over and beyond these rotary engines are compared to your typical piston engine.. But like i've told you, I really dont know much about the rotary engines. (IMG:style_emoticons/default/smile.gif)

To be perfectly honest, it sounds to me like you have a combination that could easily be pushed to 600+hp @ ~ 25-30psi.. NOT that thats a bad thing!! Just say goodbye to your Trani if you ran to those numbers (IMG:style_emoticons/default/tongue.gif)


That should be a fun boost controller!

[Mike Bellis]

To be perfectly honest, it sounds to me like you have a combination that could easily be pushed to 600+hp @ ~ 25-30psi.. NOT that thats a bad thing!! Just say goodbye to your Trani if you ran to those numbers (IMG:style_emoticons/default/tongue.gif)


That should be a fun boost controller!

If I pull it apart and port it, swap the seals, then pump up the boost... I could get 700hp out of it. (IMG:style_emoticons/default/aktion035.gif) I have no intention of looking for that number. I want to keep it driveable with the occasional stupid attack (IMG:style_emoticons/default/driving.gif) The key here is to be able to drive it like a DD. I used to drive my V8 to work! (IMG:style_emoticons/default/first.gif)

When a turbo is used on these engines, it is not worth pulling apart a good engine just to port it. The HP gain is not worth the trouble. Without a turbo, it is worth the gain.