Ok guys, I was wondering what boost I should run on my new Evo. Just broke it in not to long ago and purchased the parts to follow. Apexi CAI, Apexi GT exhaust, MR bov, turboXS mbc. I have the mbc set so that I rum 1.2 bar and 1.3 peak boost. What is a safe level I can run without running to lean and blowing the engine with the stock fuel system setup? I have a SAFC 2 ready to install and next purchase is upgraded fuel pump with injectors. I know the car was peaking at around 19 psi before the mbc and other parts were insatlled, but what will be safe with the currnent above mods and now fuel mods yet?

greenemac

Almost forgot second question. Does anyone know where in NC I can take my car to be dyno tuned? I know there is not a place in Raleigh. Just curious.

 

On 93 octane, with proper fuel, (11.5:1 afr), 20.5psi peak is safe.

 

That's all I buy is BPAmaco ultimate 93 octane. Excellent!!!!!!!!!!!

 

What about after I add the safc, the fuel pump and 750 injectors?

 

Why are you going to 750s on the stock turbo?

 

You don't want to go much more, 21 max. You CAN get detonation, timing being pulled.
If you get it flashed or dyno tuned with an eye on timing/knock, then much safer. Anything above 21psi on stock turbo gets too hot for stock IC. Also turbo life shortened due to excessive heat from runnning out of effcienty range.

 

i have peak 1.6 then 1.5
with turboback mbc flyheel and intake

 

I haven't decided what size injector to run yet, but down the road I plan on bigger turbo. I will just stick with 20 psi for now with my setup and get it dyno tuned. Thanks for the quick replys. Anyone know where I might find a dyno shop in NC?

greenemac