[jayjayjayjay]

Originally Posted by ryridesmotox

I didn't see this earlier... dude I'm sure you mean 30psi... maybe I dunno. but lemme help you out here... You select your turbo based on what kind of duty your car is doing. For example: a drag car will want a large turbo to increase flow in the upper rpm range to make more peak hp, a road or autox car would want a turbo a bit smaller than a drag car because you want a larger, more tractable powerband with a big meaty torque band. Usually for a dd you want a smaller turbo that spools quickly, but not so small as to congest the exhaust and cause excess backpressure. A daily driver turbo would build max boost +/- 3000rpm because, generally speaking that's the kind of range where you are going to be running quite a bit of the time. Keep in mind also, when you start doing turbo or supercharger builds, you will be moving your powerband to where the particular set up is most efficient, regardless of the stock powerband of the motor.

So in conclusion, you need to figure out what you want to do with the car first and foremost... then you make decisions on your build.

Nice reply. What 300 whp (my error). Drift track car only. Quick spooling. Was working on approx 8-10psi max. Assumption 25-30 hp gained through engine mods.

Preference to run E85.