Hey people i want to know what would make my car fast!!! Its an auto and i have 3.73's and im about to complete my whole catback system.... Flowmasters, Magnaflow catback, BBK xpippe with high flow cats... K&N intake.... my future is to supercharge it so i dont think i need to go with the trottle body 75mm cause i believe its gonna need a bigger one or somethign so right now im goin with pure bolt ons... so my question is....... if i was to go with 4.10's will i still be able to supercharge it ofcourse its an AUTOMATIC... what if i was to put SHIFT kit and torque converters is it still able to supercharge it HELP! i need my mustang to keep up with COBRAS!!!!!!!!!

 

2800-3200 stall torque converter, trans brake, Drag Radials, a tune for the transmission or shift kit. If your going to supercharge it i'd keep it at 3.73's ....4.10's might be a bit much gear

 

keep the 3.73s. the difference from them and 4.10s arent worth the upgrade. You may gain .2 in the 1/4 if you are lucky. 3.73s is a great match for nitrous or supercharger.

 

do u have an idea of how much will that range me to?? as in $$$ and will i be able to keep up with manual gts? or will i be able to smoke modafied gts?

 

in all reality, you'd probably beat a manual gt just bc of auto's consistency. if the stick driver is really good, they can beat you, but I've seen how hard it really is to launch and shuft a manual perfectly just to get a good time. Just get a good shift kit, and you'll be bangin those gears like noone's business

 

Dont ask how much.....because it's a lot.......to be honest gears, shift kit, and a decent set of tires will put you on par with a manual GT if not faster.

 

depends on what is modified on it. i run 13.5 with 3.90s, tb and plenum, sct xcal 2, and k&n filter. thats on street tires and street psi. I take it to the track and run it the same way it is at any given time on the street.

 

my car is supercharged and i have 373's and i nearly topped out 3rd gear in the 1/4 at 113 it was at redline.

 

stanger00, I plan on supercharging as well. Is 373's the best choise since your redlining? I've always heard 373s are the best for superchargers and N/A manuals, and 4.10 for N/A Auto's.

Second question: I've already gotten my shifts firmed up by my tuner with the Xcalibrator. Would I benefit at all from getting a shift kit????

 

its ok for me because once i get some slicks my trap time will go down but my times will be faster. it sounds wrong but the tires spun a lil on the launch and spun again when it got into the boost at 4500. so i say 373's are good for me.

before gears i was runnig a 13.6 at the track after the gears i managed a 13.4 once. mostly i got 13.5's all day long. if your gonna be supercharged then get 373's if not 410's all the way. get a convertor too while your at it thats one of the other best mods you can do to a auto, i wish i had.