3.73 or 4.10 gears

0

01CobraEric

New Member

Apr 19, 2004

13

0

0

Virginia Beach

Apr 21, 2004

#1

• Apr 21, 2004

• #1

Got a 01 Mustang Cobra. Just wondering what gears to go with. I plan on supercharging it later. From what i have seen it is about 50/50 on what to go with. I plan on supercharging later so something that would go best with that. dont want to loose too mush traction in first. I have 285 Kumho supras in the rear

 

fallenangel

New Member

Apr 18, 2004

38

0

0

Apr 21, 2004

#2

• Apr 21, 2004

• #2

i say 4:10 .. but thats just me

 

Cobra Jay

Member

Apr 7, 2004

889

0

16

Motor City

Apr 21, 2004

#3

• Apr 21, 2004

• #3

From what I've been told, don't even waste your time with the 3.73's!

I'm in the process of getting a MACH1 31-spline built with a 4.10 my 03 GT 5Spd.

 

0

01CobraEric

New Member

Apr 19, 2004

13

0

0

Virginia Beach

Apr 21, 2004

#4

• Apr 21, 2004

• #4

Does it effect the gas milege that much? I also need a streetable car

 

fallenangel

New Member

Apr 18, 2004

38

0

0

Apr 21, 2004

#5

• Apr 21, 2004

• #5

very streetable gas millage isnt bad at all .. took mine on a 1200 mile trip last summer

 

0

01CobraEric

New Member

Apr 19, 2004

13

0

0

Virginia Beach

Apr 21, 2004

#6

• Apr 21, 2004

• #6

sounds good. Thanks for the help

 

S

SVTRocket

New Member

Apr 7, 2004

18

0

0

Apr 21, 2004

#7

• Apr 21, 2004

• #7

4.10's

I don't think you would notice an appreciable difference with the 3.73's. Many members on this board think 4.30's are the best for our cars.

However if you supercharge, I believe the recommendation is not to gear that low.

 

J

joey8656

Founding Member

Apr 1, 2002

273

0

0

NJ

Apr 21, 2004

#8

• Apr 21, 2004

• #8

I have 373's, you will notice the difference. The car will be in the power band faster and more often when you shift.
I am used to the 433's in my daily driver (a probe gt) and after a year with the 373's I think I shoulda gotten 410's or 430's. I think you'll get better milage with the 430's around town cause u can put the car in 5th at about 35mph. If you do alot of highway driving ( I put on 500 a week when I use the cobra as a daily driver) the difference form 327's- 373's is nothign to worry about, so I'd say don't be afriad of the 410's/430's....its prob like 1-3 mpg less.

 

missouri_guy197

New Member

Aug 31, 2002

1,441

1

0

St. Louis, MO

Apr 22, 2004

#9

• Apr 22, 2004

• #9

You are worried about gas milage and you are going to supercharge your car...Hmmm...

 

ReallyRedCobra

Founding Member

Mar 15, 2002

102

0

0

Gibraltar, MI

Apr 22, 2004

#10

• Apr 22, 2004

• #10

Go with 4:30's. Thats what I got. Do a search on here or corral about it. It pretty much seems to be the best gear for these cars, and if you take it to the track you can at least use 4th gear.

 

D

davidj5491

New Member

Jun 4, 2002

41

0

0

Apr 22, 2004

#11

• Apr 22, 2004

• #11

Go with 4.10 minimum. I've got 3.73's, and while they are definitely better than stock, there's room for a lot more. I'm thinking of pulling my 3.73's and going 4.30's.

 

Cobra Jay

Member

Apr 7, 2004

889

0

16

Motor City

Apr 22, 2004

#12

• Apr 22, 2004

• #12

missouri_guy197 said:

You are worried about gas milage and you are going to supercharge your car...Hmmm...

Click to expand...

 

0

01CobraEric

New Member

Apr 19, 2004

13

0

0

Virginia Beach

Apr 22, 2004

#13

• Apr 22, 2004

• #13

just asking for advice not ridicule. thanks to the rest of you

 

J

joey8656

Founding Member

Apr 1, 2002

273

0

0

NJ

Apr 22, 2004

#14

• Apr 22, 2004

• #14

430's are a much better track gear. I actually hit my 7700 rpm rev limiter as I cross the traps in 3rd gear with my 373's...it is the most annoying thing in the world. I shouldn't even be hitting it with the 373's anyway- I guess my car is an odd ball.

Like I said be - 430's woudl be fine. No matter what you get you'll immediately notice how much easier it is to get the car going form a stop when driving around normally.

 

Benny

Founding Member

Jun 1, 2001

414

0

16

Katy, Texas

Apr 22, 2004

#15

• Apr 22, 2004

• #15

If your going to Supercharge it then go 3:73 or even 3:55(If your really going to S/C to the limit).

I know from Friends car who were not happy after supercharging and having Big gears.

I installed an S trim on my buddys 93 and it is putting down 522 at the wheels.
He dumped his 3:73's for 3:27's

 

missouri_guy197

New Member

Aug 31, 2002

1,441

1

0

St. Louis, MO

Apr 23, 2004

#16

• Apr 23, 2004

• #16

01CobraEric said:

just asking for advice not ridicule. thanks to the rest of you

Click to expand...

Not trying to ridicule you, but if you are worried about gas milage with lower gears, then you shouldn't supercharge your car because your gas milage will really go south with that on there...Believe it or not, people usually don't lose much MPG when they go to 4.10's or 4.30's on their car, mainly because they can drive around town in 5th without having to downshift all the time to 4th or 3rd thus saving gas...

And I've heard both sides for supercharged cars, 4.10's and 3.73's are great gears for that...but for N/A, 4.30's for street/strip 4.10's for street/occational strip...

 

9

99SVTAddict

New Member

May 8, 2003

613

0

0

Clinton Twp, MI

Apr 23, 2004

#17

• Apr 23, 2004

• #17

First off....someone said 3.55 or 3.73. NO WAY. You will hate your decision. I could see 3.73 on a roots blower since you see almost instant boost, but on a centrifical blower these gears are a WASTE of money.

Some other things I'll comment on:
1. Your gas mileage will improve in theory. But are you really going to put a blower on and then never go WOT. My car isn't a daily driver and when I drive it I drive it to have fun. Won 6 races over the last week without even trying Gas mileage will depend on driving style.

2. If you put the blower on and want to actually get the power to the ground, you NEED to get some drag radials for the street. I would vote on Nitto's since it's a daily driver and you will want some miles out of them. I now have BFG's, and I'll be happy to get 5,000 miles out of them.

3. I would vote on 4.10 gears for you. I have 4.30's, but my Viper T56 transmission also has a 2.66 first gear versus your 3.3X (can't remember exactly) so for me, it's like having a 4.10 in the car in first gear. Hope that makes sense.

I had 4.10's in the car when I still had the IRS and T45 trans and it was a lot of fun but I still wanted more.

4.10's all the way, or 4.30 if you are ready to get some big sticky tires.

 

Cobra Jay

Member

Apr 7, 2004

889

0

16

Motor City

Apr 23, 2004

#18

• Apr 23, 2004

• #18

01CobraEric said:

just asking for advice not ridicule. thanks to the rest of you

Click to expand...

Wasn't trying to ridicule you. Just thought it was funny that you're worried about MPG from gears, yet you mentioned possibly putting a S/C on your car .

 

A

AROD357

New Member

Oct 9, 2003

56

0

0

Moreno Valley

Apr 23, 2004

#19

• Apr 23, 2004

• #19

4.10's or 4.30's I have 4.10's on mine and would not consider anything lower than a 4.10

 

B

Blk99SvtCobra

New Member

Feb 2, 2004

68

0

0

Apr 23, 2004

#20

• Apr 23, 2004

• #20

i went 4.10s their the best thing ive done so far
but 430s wouldnt make that much more of a diffrence