onemean66stang

i have an 89 5.0 convertible that I want to supercharge eventually. I plan on running between 8-10 PSI. what gears should i run? 3.73, 3.9o, or 4.10? what other mods will i need to make a 12 second daily driver/import killer?

dc_mann8

if you only want a 12 sec fox, no need to supercharge it. get some 4:30s, nice DR's, bolt ons and heads= easy 12s

onemean66stang

4.30s? isn't that a lil to low for sthe street?

dc_mann8

ok go 4:10s, but there are a few on here with 4:30s and dont complain so im not sure but dont go 3:55 thats for sure. 3:73 at highest

onemean66stang

3.90', 4.10', or 3.73? i have the supercharger on order

Aliate X

3.55 or 3.73 with the super charger. Nothing higher than 3.73. Anything higher and you will have no traction whatso ever. you will blow the tires off constantly. (not literally, i mean lose traction)

86HOGT

Nah throw on some 5.13s....



lol

I have 3.73s in mine and love em, don't know ow I got by with 2.73.
Being supercharged, get 3.73s...

vfast

to big straight I'll go against most on the gear....with a s/c a 3.27 is the best or even 3.55....I run 3.73's in my fox with 15 spi the problem you have will those 3.90, and up is over driving the S/C what I mean is you'll over rev it right now mine spins around 46,000 rpm, yes under the 50k max but I have seen 50k rpm or charger and they don't live long..and with 3.27 you don't blow the tires up and asum midrange power easier on parts etc

onemean66stang

what else will i need to run 12's in my convertible?

roundman

SLICKS AND SOME TRACTION!