hayden

I was just wanting to see if anybody knew about how much hp i would gain with puttin underdrive pullies and a larger throttle body (70mm) on my car... so far my car ('93 LX 5.0 H.O.) has a K&N cold air intake, 3:73 gears, and Mac cat-back exhaust.... im thinking the next mods i wanna make are underdrive pullies and the 70mm throttle body... anybody know??? thanks

gspfunk

U/D's are great, but you'll be hurting at idle unless you've done an alternator upgrade...

hayden

ok, thanks.... do you know about how much HP i'll gain with those???

nacanitihs

unless you just replace the other two and not the alt pully

Ecstasy

what u mean alternator upgrade? u can just turn ur idle speed up. i have the stock alt. and ud pulleys even the alt pulley and mine stil doesnt go int he red at idle.

luckythirteen13

the 70mm tb is too big for your motor and under drives will get you 2-4hp

hayden

what other mods should go along with the 70mm throttle body???

Myfetang

go a 65mm Accufab throttle body...70mm is too big for your application right now, and most likely for awhile... As for the pullies, the tuner guy at The Mustang Shop here in Calgary has dyno proven 11 horse to the wheels, (which definitely blew my mind) A good upgrade for cheap

Goosepoop302

new MAF

hayden

ok, well right now mine has the stock 65mm throttle body... should i go with some kind of aftermarket one or is the stock one just fine?? thanks myfetang for the HP specs