R85 seems to make more power than the 40R, as can be seen on the dyno sheets at kgparts.com.

My question is do you guys think that the GT40R can make similar power if not more with properly working engine and tuning. Also does anyone have pics of the R85 kit besides the one seem on the site. Also does anyone know the specs of both turbos.

Well I plan on heading to A-Spec tomorrow to get more info and personal opinions(hope they are there and not at the revolution)

sorry I know another post is going over this same thing. But I may buy one of these turbo kits this week if I am not able to get another kit I have been looking into.

 

best thing to do is pm rotor_dee and aspec tuning and ask them.

 

reread the thread as it states the car with the GT40R had a bad engine when they did it. Most likely the R85 will have better top end and a higher red line with that inconel wheel and better suited for a ported engine.

What do you want? ...better low end or better top end?