What upper/lower pullie will give you the most hp? Do you need a custom dyno tune when you do a pullie or can you just use a canned tune from a sct or diablo?

 

I would not cheap out on the tune on these cars... at all. That's how these cars blow up...

I think a good amount of power is given wit hthe 2.93 and 4# lower... you will see less peak rwhp numbers with that setup vs a 2.65, 2.76 or a 2.81 lone upper.. but you'll see more torque.. and a better power curve...

I still think the 2.65 and 2.76 generate to much heat for a minimal gain - not worth it imo for a 2.76 to gain .3psi over a 2.81 with more heat... With the 2.65 you also run the risk of overspinning the Eaton...it createsa TON of heat...

but that's just my opinion.. some agree, some don't.

 

i just say go turbo. it saves alot of heat.

 

well, that is a solution, lol...