p&p, 65mm tb, 11psi, autocrossing

[tedness]

99 v6 mustang....

i plan on porting and polishing my upper and lower intakes in the near future and wonder if a 65mm tb would hurt any performance.

i've heard mixed things on this, but most commonly just slapping the tb on is bad, but if its matched with a proper p&p it's good.

down the line i plan to grab an 11psi procharger to go with it, but wondered how drivability for autocrossing would change versus an n/a setup. right now i spend a lot of time between 3500 and 4800rpms because of the course layouts.

also, is it possible to break 300rwhp with an 11psi procharger, p&p, 65mm tb, and good tune from yall?

[Justin@VMP]

You need a good turbo kit to make 400rwhp on stock heads/cam. The procharger won't get close. The gains from P&P upper/lower will be minor. A TB may or may not get you more power with a blower.

[tedness]

ah i meant 300rwhp, that was a typo on my part.

but would a supercharger be a bad choice if most of my racing is done on twisties rather than straight line?

[Justin@VMP]

300rwhp through an M5 is not hard to attain