3.73 or 4.10's That is the question

[2011GT1979]

I purchased my car with 3.31 gears. I now want to upgrade the gears. I really want 4.10's but here is my dilemma. Do you think 4.10's will be to much gear when I put forced induction on that car this spring? I do not want to have to shift into 5th gear going down the track. My power goals are fairly modest in my opinion at 550RWHP. I would like to think I would trap 123+ pretty easy with that kind of power.

Anyway I was just looking for some opinions.

 

[*JZ*]

I'd go with the 3.73 gears if that's the horsepower range you're looking to be in.

We are running 3.73's in our 2011 with the Procharger on it.

 

[JJ@WMS]

Our car came with 3:73's and we upgraded to 4:30's and are now switching to 4:56's. With the 6spd manual you should seriously consider 4:10's or 4:30's even if you go the supercharged route especially if your going to run at the track on a full slick or atleast a 28" tire. You want to get into 5th earlier then later with this car so it will pull you thru the traps at the right rpm.

JJ

 

[GeorgeInNePa]

Any recommendations for an Auto 2011?I'm going to stay NA for the near future. O/R X, CAI, converter, and tune are my planned mods.

I know 4.10s are the "go to" for the shop autos, but for a car that's a DD 90% of the time, I'm thinking 3.55s or 3.73s. I may go with 26" tires for drag radials for the once a month strip blast.

 

[*JZ*]

Honestly, for a N/A auto. The 4.10 would be ideal. Mainly b/c of how the gearing is in the transmission. You will not be sorry and your fuel economy will be be negatively effected.

 

[GrnBullitt08]

N/A - 4.10s

Power Adder: Depends on which type.

Turbo Stay with a 3.31 or 3.55, Twin Screw/Centri - 3.73 or 4.10

 

[SilentScope]

3.90's ??

 

[SONIC]

SEARCH !!

 

[2011GT1979]

N/A - 4.10s

Power Adder: Depends on which type.

Turbo Stay with a 3.31 or 3.55, Twin Screw/Centri - 3.73 or 4.10

Thanks a lot.. This is a great piece of information. I plan on going Procharger. I have had a Vortec, Whipple and procharger int he past. I liked the procharger the most so far.

I want to try turbo one of these days but I never see an affordable turbo kits. Well, at least affordable to me.

 

[2011GT1979]

SEARCH !!

I did do a search. I did not find the answer I was looking for hence the post. The 2011's have different gears in the transmissions compared to the mustangs built prior.

So I am only interested in opinions formed around the 2011 GT.

But in the end your post was a great contribution to the thread.

 

[SilentScope]

I did do a search. I did not find the answer I was looking for hence the post. The 2011's have different gears in the transmissions compared to the mustangs built prior.

So I am only interested in opinions formed around the 2011 GT.

But in the end your post was a great contribution to the thread.

Oh, would you also like to know what color stripes to get for you mustang?

The fact that the 2011's have a slightly different ratio, doesn't change the fact of which gears work best. the drive ratio is only a few off, and its because they are 6 speeds.

John said it best.

NA=steep gears.
turbo= low gears
centri=4.10's or nothing.

 

[firestang70]

Guys that are running 4.10s with S/Cs are blowing thru the shifts. I know Beefcake was running 4.10s with a Vortech and had that issue. He swapped to 3.55s and the shifts are much smoother and trapping 1-2 mph better. Can't remember what heigth tire he runs, I am sure he will chime in.

 

[firestang70]

To the OP I am getting an auto and will be running 4.10s, I plan on staying NA. If I were running a manual and go FI in the future I think 3.73s would be nice. You can tweak that final ratio around with tire size. I run 4.10s with a 28" tire with my Whippled 3v and that shift comes NOW! lol

 

[302]

SEARCH !!

Search what? The countless other threads about 6 speed 5.0 4v Mustang GT's? This is a new topic and i have been wondering the same myself.

 

[GeorgeInNePa]

Oh, would you also like to know what color stripes to get for you mustang?

The fact that the 2011's have a slightly different ratio, doesn't change the fact of which gears work best. the drive ratio is only a few off, and its because they are 6 speeds.

John said it best.

NA=steep gears.
turbo= low gears
centri=4.10's or nothing.

That's great, except one guy with a centri has already dropped some gear.

One of the shops with a positive displacement blower is still using high gears.

So maybe an opinion thread would be helpful.

 

[SONIC]

Search what? The countless other threads about 6 speed 5.0 4v Mustang GT's? This is a new topic and i have been wondering the same myself.

this is a dead topic big deal its a 2011!!! slight difference as stated before

 

[302]

this is a dead topic big deal its a 2011!!! slight difference as stated before

Hell half the damn topics on this message-board are dead in the first place. I would rather see 5 threads about gears, than 5 threads from random vendors trying to pawn shit off in the tech section like its wal-mart.

 

[GrnBullitt08]

Gearing can depend on several variables... Not just the blower type. Power level is one of them.

 

[2011GT1979]

I ordered 3.73's this afternoon. If a nice turbo kit comes out before spring I might jump on it. If not I think I am going to try Kenne Bell this time.

 

[SilentScope]

I ordered 3.73's this afternoon. If a nice turbo kit comes out before spring I might jump on it. If not I think I am going to try Kenne Bell this time.

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