hottwheels04
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- Joined
- Jul 14, 2006
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do a quick search and you will see common turbo kits for single is 70mm on 3 perfornance etc. perfect size is good for a v8. anything bigger is good f0r bigger cubich inch motor or built motors. anything smaller then 70mm is common on twin turbo setups or smaller single setups are good for 4 cylinders and import 50-60mm. a stock motor is good for 500 and under rwhp. since your building a new motor doesnt matter,but that being said run 70mm on stock motor run 6-10 psi it will make around 400-450rwhp all day on pump gas and room to grow with boost or new motor 500+rwhp is more then enough 70+mm is perfect. Ive seen bone stock motors, stock down to intake manifold, just injectors and 70mm turbos on 6 psi pump put down 380-400rwhp. and ones with 8-10psi make 425-450 rwhp. ones with just bolt ons or intakes or gt40 parts make 440-525rwhp on 10+psi. more then enough to max out the stock bottom end. so build a motor on the side your good.