GT Performance Mods 2005+ Mustang GT Performance and Technical Information

Gears or driveshaft?

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Old 1/1/09, 05:42 PM
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Originally Posted by Rebel73
Hey man, how's your traction with the 4.10s? Do you spin like a politician near election time?

I actually want the car to be faster, not just funner !
Man the car is like a rocket..lol
I mean when i hit it when I'm cruising, my neck is jerking..... Whiplash style...

Good tires help... Looks like we have the same rubber. As long as you are cool when your accelerating on initial take off, then you'll be good. You try and slam down into it, you maybe side ways.

I couldn't be happier.

When I got my driveshaft after I got the gears installed, you could definitely feel that the car was quicker and and just overall fast. I am very, very happy with the performance level of this car. You will not regret going here.
Old 1/1/09, 08:31 PM
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Originally Posted by Torrence
Man the car is like a rocket..lol
I mean when i hit it when I'm cruising, my neck is jerking..... Whiplash style...

Good tires help... Looks like we have the same rubber. As long as you are cool when your accelerating on initial take off, then you'll be good. You try and slam down into it, you maybe side ways.

I couldn't be happier.

When I got my driveshaft after I got the gears installed, you could definitely feel that the car was quicker and and just overall fast. I am very, very happy with the performance level of this car. You will not regret going here.


So is 1st gear pretty much worthless now ?
Old 1/1/09, 09:56 PM
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Hard to say.... I have my transmission, gears and WHIPPLE all tuned to work in perfect blissful harmony.... I use all my gears.
Old 1/1/09, 10:27 PM
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Gears are a torque multiplier, so having a whipple already provides tons of torque, rendering the change in gears fairly useless. My GT, on the other hand, works great with 4.10 gears as I have a centrifugal blower which makes less low end torque than the whipple. In your case, I'd go with the driveshaft first, and maybe gears later.
Old 1/2/09, 10:51 AM
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Originally Posted by Five Oh Brian
Gears are a torque multiplier, so having a whipple already provides tons of torque, rendering the change in gears fairly useless. My GT, on the other hand, works great with 4.10 gears as I have a centrifugal blower which makes less low end torque than the whipple. In your case, I'd go with the driveshaft first, and maybe gears later.

he should benefit with a 3.73 ratio or even a 3.90 ratio. dont you think?

isnt that what people are running with a twin screw?

i have plans for the future(dont know when) to add a twin screw, but i dont know if i want to swap out my 4.10's.

ughhh decisions decisions decisions!!!!!! lol
Old 1/2/09, 10:57 AM
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Originally Posted by classix_stang289
he should benefit with a 3.73 ratio or even a 3.90 ratio. dont you think?

isnt that what people are running with a twin screw?

i have plans for the future(dont know when) to add a twin screw, but i dont know if i want to swap out my 4.10's.

ughhh decisions decisions decisions!!!!!! lol
Don't switch..... You'll love the twinscrew with 4.10's.....
Old 1/2/09, 11:04 AM
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If it were me I would just do the driveshaft. There is already enough torque down low with the whipple. Less strain on your car too...
Old 1/2/09, 02:08 PM
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If it is a stick, the taller gears will cause way more wear and tear on the clutch than lower gears do...

This is most obvious when trying to drive it easy. More power/torque, equals more wear and tear.

I know, the 3.31/1 gears in the GT500 are too tall!


BTW:
On a scale of 1 to 10 your seat of the pants gauge is gonna peg the scale at 10 for lower gears, and barely move the needle past 2 for a driveshaft.


Originally Posted by SONICBOOST
If it were me I would just do the driveshaft. There is already enough torque down low with the whipple. Less strain on your car too...
Old 1/2/09, 02:35 PM
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3:73's....a nice compromise
Old 1/2/09, 02:42 PM
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Ok ok,

let's lay it down like this:

Three mechanically identical 5spd Stangs line up for a 1/4 drag. They are all Whipple charged. ALL factors are equal(tires, driver skill, rwhp, rwtq, setup, etc.) except for gears. The first has 3.31s, the second has 3.73s, and the third has 4.10s.

Who would win?

Last edited by Rebel73; 1/2/09 at 02:50 PM.
Old 1/2/09, 02:48 PM
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Leo cause he has an automatic.
Old 1/2/09, 02:49 PM
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Originally Posted by Rebel73
Ok ok,

let's lay it down like this:

Three mechanically identical Stangs line up for a 1/4 drag. They are all Whipple charged. ALL factors are equal(tires, driver skill, rwhp, rwtq, setup, etc.) except for gears. The first has 3.31s, the second has 3.73s, and the third has 4.10s.

Who would win?
The crowd..
Old 1/2/09, 02:50 PM
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Originally Posted by 2k7gtcs
Leo cause he has an automatic.
thanks, you just made me edit my post!
Old 1/2/09, 02:53 PM
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Originally Posted by Rebel73
Ok ok,

let's lay it down like this:

Three mechanically identical 5spd Stangs line up for a 1/4 drag. They are all Whipple charged. ALL factors are equal(tires, driver skill, rwhp, rwtq, setup, etc.) except for gears. The first has 3.31s, the second has 3.73s, and the third has 4.10s.

Who would win?

the one who's car has a better coat of wax. less drag. lol
Old 1/2/09, 02:54 PM
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Originally Posted by Rebel73
thanks, you just made me edit my post!
Sorry. Couldn't resist.

And in truthful answer to your question I really have no idea. Tom had great results and numbers with is 4.10's and Saleen. He was easily in 11 seconds. Torrence is raving about his. And although Leo has a Centri, he has a very strong car with 4.10's.

I would think that with DR's the 4.10's would win. With 235 street tires the 3.31's would win. So the next question would be what tires are always going to be on the car?
Old 1/2/09, 02:57 PM
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I didn't even think about that...not to harp on it, but 4:10's would work well with drag radials...not well with regular street tires..
Old 1/2/09, 03:10 PM
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Ok,

same scenario, except it's a highway sprint from 65 - 120... on street tires ???

He he...
Old 1/2/09, 03:10 PM
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Originally Posted by GT5088
I didn't even think about that...not to harp on it, but 4:10's would work well with drag radials...not well with regular street tires..
yah, I think you've hit on something there. I'm not gonna be runnins DRs on the street.

Last edited by Rebel73; 1/2/09 at 03:12 PM.
Old 1/2/09, 03:12 PM
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Well not to duck that question since I really don't know but my car actually pulls in 5th gear since I got the 4.10's put in. I can actually pass in that gear now. Food for thought.
Old 1/2/09, 03:13 PM
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Originally Posted by Rebel73
yah, I think you've hit on something there. I'm not gonna be runnins DRs on the street.
then the 3:73's don't sound too bad. But, like you are doing, I would get as much advice from people in the similar scenario to see what they went with, and how they like it.


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