As anyone tried this before?!?!

M

mustang gt 2003

Member

May 9, 2005

29

0

6

Aug 13, 2007

#1

• Aug 13, 2007

• #1

Now i have some money to spend, so i was thinking the possibilites. One, a accufab TB and Plenum, or 3.73 gear kit. Im curious on which one you guys would take. And also, i am not trying to provoke street racing.... but has anyone (on a track or runway strip) tested out the top speed of a mustang gt with 3.73 gears??

 

SaleenGT2001

Well-Known Member

Jul 18, 2005

2,811

4

58

Four Oaks NC

Aug 13, 2007

#2

• Aug 13, 2007

• #2

my car has hit the rev limiter in 5th gear with 3.90's at 153 mph. (on a closed course)
i do have a T56 so the ratio is a little different.

you dont want to pull to the limiter in your OD gear. it puts a massive strain on the engine!

you will never run out of gear with the 3.73's. before my s/c i couldnt pull past 145 mph with the 3.90's and every bolt on possible.

go with the gears, most bang for the buck

 

StangYellow

Founding Member

Sep 11, 2002

1,052

1

39

Aug 14, 2007

#3

• Aug 14, 2007

• #3

Look into the Professional Products t/b and plenum. You can score both of them for 200 bucks total. Accufab is the shiny, Michael Jordan sneakers of throttle bodies.

For reference, 4.10's go about 113 in 4th gear, then 5th is useless.

 

Tim2002GT

Founding Member

Apr 10, 2002

635

4

29

Tulsa, Oklahoma

Aug 14, 2007

#4

• Aug 14, 2007

• #4

I would recommend getting 4.10's instead of 3.73's. Your top speed won't decrease that much. If you are worried about that, watch this video...
http://www.justagt2.com/movies/gearmovies/gears9.AVI

But definately do gears before the TB and plenum.

 

M

mustang gt 2003

Member

May 9, 2005

29

0

6

Aug 14, 2007

#5

• Aug 14, 2007

• #5

thanks guys i appreciate it. Im going to get a gear kit tomorrow. Hopefully installation wont be an arm and leg!

 

StangYellow

Founding Member

Sep 11, 2002

1,052

1

39

Aug 15, 2007

#6

• Aug 15, 2007

• #6

A good shop can get it done under 2 hours. I paid $200 for the install and brought all my own fluids. Make sure you buy friction modifier!

 

the98stang

Active Member

Aug 12, 2005

2,408

0

47

Clovis, CA

Aug 15, 2007

#7

• Aug 15, 2007

• #7

honestly, after I got gears I wish I had bought the entire set up (differential/axles/gears). Save your money, and then you can run slicks at the track with an aftermarket diff

 

M

mustang gt 2003

Member

May 9, 2005

29

0

6

Aug 15, 2007

#8

• Aug 15, 2007

• #8

Ok, i just got a quote from a shop through e-mail saying 350 for labor. Also, he said that i would need a tune. I thought the speed cal that i was getting with the kit corrects the mph. So, why would i need a tune too?