[speegt]

hi, im new here , i have an 01 gt,mt . i have already put in a dynomax cat back system,70 mm upper plenum and tb,cold air intake, i recently got a 80 mm mass air and was told i need to calibrate for this , do the custom tuners like hypertech and sct do this and do i need to go with bigger injectors as well. also i was considering headers , is it worth the time, oh i also put in the bbk underdrive kit. thanks

[G.T. Rags]

the sct will do u just fine....hypertech is crap.

u don't need bigger injectors....

[HMUSN]

welcome to the forums.

your Gt already has an 85mm mass air.
you don't need bigger injectors for a while yet.
Yes Tuners can Calibrate that though.
headers are a half decent mod but I would look into long tube's.

I would suggest gears for your next mod.

[speegt]

hey thanks , what about the headers, and how much differance can i expect with the mass air and the tuner?

[speegt]

i was told the stock gts in 01 had 55 mm mass air.

[HMUSN]

you would be down grading if you put the 80mm mas air on.

you already have an 85mm.

the headers will pick up a good 10HP.
and the tune would depend on what exact mods you have.

it should be in the range of 20hp though

[HMUSN]

Originally Posted by speegt i was told the stock gts in 01 had 55 mm mass air.

maybe your talking about an 01 v6.

[kennyGT]

Originally Posted by HMUSN you already have an 85mm.

+1 very much true

[Dallas01GT]

Gears should be next, 4.10 if you are not going to supercharge or turbo and 3.73 if you ever do any of the for mentioned.

Something I did on my 01 GT was cams, I did stage one cause I wanted low end power. Also the stage one cams allowed power to stay constant once it hit peak all the way to redline unlike stock cams which started to fade off.

You have to remember, power is not everything. If you can not put the power to the ground then its not worth a damn. Suspension is worth it.

Since you have a 5speed then consider getting a short shifter, you'll hear a ton of opinions on whats best but by far more people like MGW.

[speegt]

hi, another ?. i have an 01 gt made in aug.01 has a 5 speed tranny, which tranny is that that i have , i am looking at the short throw shifters, thanks

[HMUSN]

t-3650

[BumbleBeeStang04]

Actually the 99-04 Mustangs have an 80 mm MAF stock. You can buy an upgraded 80mm MAF for the 99-01 Mustangs and you can get an 85 mm MAF for the 02-04 Mustangs

[speegt]

hi, thanks ,i got an upgraded roush 80 mm mass air im going to try, also what are the stock rear gears in my 01 gt?

[speegt]

does anyone on here have the xcalibrator for an 01 gt they want to sell, or im looking at one on ebay, but it says needs to be reprogrammed, can this be done at home or do you need to take it somewhere?

[BumbleBeeStang04]

your stock gears are 3.55s where as automatics are 3.27s

[00vabchgt]

Originally Posted by speegt hi, thanks ,i got an upgraded roush 80 mm mass air im going to try, also what are the stock rear gears in my 01 gt?

you have 3.27's

[BumbleBeeStang04]

my bad I was thinkin of something else stock gears are 3.27s

[00vabchgt]

terminators came with 3.55's and i think the Mach's did too, but i'm not sure.

[SWEET2KSTANG]

+1 3.27 for you, 80mm stock maf, stock injectors are fine to around 330rwhp, headers always a good thing, gears a good thing too. sct, diablo, and sniper will be the best tuners out ther. i use the diablo and have also used the superchips and hypertech, first hand experience i say they are junk!

[04gtvert]

I say go with a gear/ tuner kit. I got the Diablo tuner and 4.10 setup from americanmuscle. com. It was amazing what a difference gears will make and your gonna need the tuner anyway.