OK guys, help me decide the fate of my poor little street Mustang...
Here's my combo, so you know what I'm working with:
Man O War 331 short block with all forged stuff, 8.8 to 1 compression
Eddy Victor JR heads, healthy turbo hydraulic roller cam shifting at 6800 rpm
Rossler TH400 with PTC converter, 3.27 gears
Currently running a single PT76GTS turbo. Last year car ran [email protected]
with 18 psi...I'm guessing the car might squeak into the 8s maxxing the 76mm turbo out on race gas. Who knows???
My issue is that I don't want to go to a mid frame turbo like a borg warner because I just don't have the room for the big down pipe among other things that would have to change.
I'm considering selling my current single kit and purchasing a twin turbo kit to get my car solidly in the 8s...8.50s?? and still be a true street car like it is now.
Are twins the way to go? If so, what size turbos?? Currently, I'm looking at two Turbonetics 6668 turbos, they support 700 hp each, which should get me to my goal of 8.50s with some room to grow.
Also, keep in mind that I will more than likely be going to a big bore 347 piston on my next motor rebuild.
It just seems like the turbo manufacturers all say a large single is more efficient than two small turbos, but I see some really fast street cars with twins.
Let me know your thoughts...sorry for the long post, but I'm ready to pull the trigger on a twin kit and would like some feedback from you guys.