6776bb or 6152e with my stock longblock?

[BlackMetal]

I have the 6152e as well. I think it's a pretty good turbo. Running only 18lbs at the track I was running 12.3's on street tires!

Thanks for replying. Sounds good. I will probably get a 6152S (4" inlet) to take advantage of my FullThrottle MAF pipe. Should be enough turbo for a garage/street car.

 

[Sweet6]

I have a non BB PT67 on a unopened stock long block. I moved from a GT32 to the 6776 and picked up 7mph in the quarter with no other mods running 4 pounds less boost. My 6776 sweet spot is at 25 pounds. It will build more boost but my mph does not pick up. I used to run the GT32 at 29 pounds. The 67 seems to run out of steam at 25 pounds, at least with stock heads and cam. It pushes alot of air at low boost.

My TTA with a GT32 at 25 PSI basically ran the same as my buddy's car with a non BB 67 at 25 PSI. His car had a front mount and the TTA had a Dutt neck. I set up and drove both cars. Both cars on alky too.