Join Date: May 2005
Location: Mt. Washington, KY
60mm vs 70 vs 76, which is best for said CI?
Just doing some figures for the next project. I know about NA stuff somewhat, I know about superchargers somewhat, I dont know to much about turbos. I havnt seen enough/read enough examples to help figure it out. Ok, we got small turbos, 60mm turbos, 66, 70, 76 and bigger. I am gonna use the 302/306-331/347 for examples.
Say you have the trick flow heads stage one cam, track heat intake on a 306.If you bolt up a 60mm turbo, it makes its power throughout a certain rpm. If the same motor has a 76 turbo on it, it would make as much low end but would come on higher. What Im getting at, is what size turbo is good for said cubic inches? What is the powerband? Would a 76 be to big for a 302/306?
Shine some light on me with some info/dyno sheets if you would.
-92GT stock w/39k miles
-91LX aod/white hatch
-2011 GT A6/brenspeed/kooks/dynotech/roush tvs