2007GT/CS

Please. Are we going to start this tired sh*t again?

On a more positive note: Let me answer a couple questions asked along the way here.....

1. When I went with the Brenspeed kitDave felt like he couldn't guarantee me 425+ rwhp without going to the Stage 3 kit. You should have some more discussions with those guys about what your expectations are.

2. I'm running the 3.4" pulley and the cheapo Saleen boost gauge pegs 10 lbs when I hammer it.

MustangGT0405

Sounds like you should do some more research about on the different Types, Twin Screw, Centrifugal, and turbo's just for a well rounded education.

Once you have that you can come back and ask specific questions.

moosestang

Thanks for confirming that, maybe brenspeed's stage 3 kit comes with longtubes and that's why it only makes 8lbs of boost.

2007GT/CS

Nope. I have the Stage 3 kit and it does not come with LTs. The 3.4" produces 10 lbs not 8. I dunno why Brenspeed says that.

If the Saleen is somehow marginally more efficient than the Whipple it remains to be proven (to me at least). I believe they produce roughly the same boost and power at similar pulley sizes.