Guys, let us talk only 9psi and up;-)

 

Everyone knows that I will be running 11psi up top. I most likely will running 8psi 70% of the time but I plan on keeping tabs and letting people know how the car fairs with that much boost.
Turbo is a gt35r.
-Chris

 

An interesting confirmation: http://www.motorsportsdigest.com/tech/forced2.htm

 

Sweet, I love understanding shit.

Basically, go back to the effective compression ratio chart that I made and stay below an ECR of 17ish. Any more than that and you are going to want to look into building up the motor.

Jakub and wannabuy, I am sure you could get away with some occasional +2 or +3psi runs. Just make sure that its tuned propery. Know that it might compromise the motor life in the long run.

I love the fact that Honda pre-built this engine from the factory

Anyone want to start another K-series versus F-series debate now? Haha.

^^^
Should I not have said that??

 

[QUOTE=Sideways,Nov 16 2005, 01:23 AM]
I'm running an ECR of 20.5:1 with stock pistons and rods.

 

now were seeing differences... so your saying more boost produces greater volumetric efficiency even if your effective compression ratio is the same as with a high static compression motor? can greater volumetric efficiency make more power if ECR is the same?

am i totally off the base here?

 

Good question. From what I read,every turbo has it's peak efficiency at different boost levels, and I asume a GT30 wasn't designed to flow it's best at 8psi...now was it?

 

It is my understanding that unless you talking N/A with ram air, there is another question. Not just effective ratio and horsepower but how much air and fuel you can get in and out. The more air you can push in the more fuel you can add to a point. Maybe I'm wrong but isn't that where you get some of the biggest benefits from FI.

 

That depends on the motor it's attached to.

 

Knowing that 11 psi is about 19.25 and will be ran occasinally and that 8psi is about 17.05 I consider the build by Full-Race and the tune by Jeff Evans reliable and safe. Heck I spent two hours in and out of boost constantly in Vegas and the car didn't over heat or have trouble. However on the other side the car was set at 8psi wich is where I will keep it most of the time.


-Chris