I have a rew with medium street port and have a hks undivided cast manifold with a turbonetics t66. The current a/r of the hotside is I think .70 as it has 70 stamped in the hotside. The hotside is also divided so I am sure I need to switch it out. I am thinking I need a .96 undivided hotside to make my power goals of 450~ to the wheels on pump at around 15 psi +/- 3 psi. I know turbonetics makes a .81 and a .96 in undivided. Any help would be appreciated.

Dustin

 

Either the .81 or the .96 will work fine. What trim turbine wheel is it? Either be it a P or Q trim, either A/R value will work fine and flow enough for your power goals, the ,81 spooling faster and the .96 making a bit more up top (may not even be noticably more).

~Mike.............

 

I'd agree with above. Run the smaller .8x, Depending on a few things you'll see around 450ish whp around 17psi. Running the .96 you'll lose the bottem with minimal gain up top

-S-

 

cool thanks.

Dustin