GT PP 0-60 times.

[Tommy V]

I was thinking about changing my 3.73 gears for 3.31 gears.

No dude u dont want to do that.0 to 60 is really not that important,60 foot times are and when u get some really good tires on the rear of that car its going to leave like a rocket.Try driving in a gt with the 331 gears and get in yours and try again.Alot more torque coming off the line with the 373s.If your not into 1/4 mile or lite to lite than maybe i could see changing.

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[evo8904]

No dude u dont want to do that.0 to 60 is really not that important,60 foot times are and when u get some really good tires on the rear of that car its going to leave like a rocket.Try driving in a gt with the 331 gears and get in yours and try again.Alot more torque coming off the line with the 373s.If your not into 1/4 mile or lite to lite than maybe i could see changing.

Yeah, I am going to try out the 3.73 first since they are coming in my car.

 

[15GTBEN]

No dude u dont want to do that.0 to 60 is really not that important,60 foot times are and when u get some really good tires on the rear of that car its going to leave like a rocket.Try driving in a gt with the 331 gears and get in yours and try again.Alot more torque coming off the line with the 373s.If your not into 1/4 mile or lite to lite than maybe i could see changing.

Meh, I actually constantly ran 1 mph quicker in the 1/4 with the 3.31's vs the 3.73's in my 12' 5.0 stock and tuned in similar air.
3.73's can potentially come out of the hole (60ft) better given if traction permits with the right tire /suspension set up. The 3.73's feel a ''little'' more responsive around town than the 3.31's but once in the powerband (where things matter) you are there much longer with the 3.31's.
3.31's definitely the way if turbo/supercharged.
3.73's better for 0-60 and 60ft (with traction) and auto cross
3.31's better for 1/4 mile and long highway pulls (roll racing).

 

[Tommy V]

Meh, I actually constantly ran 1 mph quicker in the 1/4 with the 3.31's vs the 3.73's in my 12' 5.0 stock and tuned in similar air.
3.73's can potentially come out of the hole (60ft) better given if traction permits with the right tire /suspension set up. The 3.73's feel a ''little'' more responsive around town than the 3.31's but once in the powerband (where things matter) you are there much longer with the 3.31's.
3.31's definitely the way if turbo/supercharged.
3.73's better for 0-60 and 60ft (with traction) and auto cross
3.31's better for 1/4 mile and long highway pulls (roll racing).

True and I agree I think its more of a personal preference, they both have their advantages.

 

[Chargedguard5.0]

I have the 3.73 but I'm thinking about going to the 3.31 once the blower is put on. I had a blown 2011 with the 3.73 and didn't like it on the street.

 

[Sasuketr]

There is a reason why the GT PP comes with 3.73 gears,the same way camaro 1le comes in with 3.91 gears. I had an ls3 camaro with 3.31 gears and the car felt so slow and heavy from the start. However pulling on the highway with 3rd gear up to 111 mph was a blast. Now considering the weight gain of the mustang, the 3.73 gears is not a bad idea.

 

[Tim Hilliard]

I'm still thinking of swapping to 3.55's, tame it down a little, have a little more speed per gear without a short shift or running against the rev limiter on track.

 

[Jmeo]

I am without a doubt switching to 3.31 once the sc is installed. 3.73 are too short now forget about once supercharged.

Honestly if I were staying na I would want 3.55 and for boosted applications I think 3.31 are the way to go.


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[dubster99]

These 3.73 gears will be great for road race and autox. Those brembos, sway bars, etc aren't for drag racing. The PP car was built to handle.

 

[Tim Hilliard]

These 3.73 gears will be great for road race and autox. Those brembos, sway bars, etc aren't for drag racing. The PP car was built to handle.

Autocross but i think too steep for road course work. I think it will effect entry speeds at some tracks and obviously exit on a faster turn because the steps seam to spread out. I intend to find out

 

[15GTBEN]

There is a reason why the GT PP comes with 3.73 gears,the same way camaro 1le comes in with 3.91 gears. I had an ls3 camaro with 3.31 gears and the car felt so slow and heavy from the start. However pulling on the highway with 3rd gear up to 111 mph was a blast. Now considering the weight gain of the mustang, the 3.73 gears is not a bad idea.

Gearing can help compensate for added weight and higher altitude but the 15' stang isn't THAT much heavier justify more gear. Consider transmission gearing as the gearing of the MT82 is different than the camaro's. An MT82 with 3.73's are far steeper than a 1LE with 3.91's(see below). The 1LE with 3.91's are more like the MT82 with 3.31's. Anything more than 3.55's are pretty steep for the MT82. If you want to accelerate faster, you're better off making more power, weight reduction, tire/suspension and driver mod.

MT82 (manual 5.0):
1st - 3.66
2nd - 2.43
3rd - 1.69
4th - 1.32
5th - 1.00
6th - 0.65

1LE Camaro Gearing:
MM6 w/ 3.91
1st 2.66
2nd 1.78
3rd 1.30
4th 1.00
5th 0.74
6th 0.50

Tremec TR-6060 manual LS3 Camaro SS:
1st- 3.01
2nd-2.07
3rd-1.43
4th-1.00
5th-0.84
6th-0.57

You can see in the following video that 3.31's were preferred over the 3.73's for Texas tracks:
http://vorshlag.smugmug.com/Racing-...DusoldProject6G-test1-ECR-120614-data-960.mp4

Other than a steeper first and 6th gear, the 6R80 (auto) GT stangs have far longer gearing from 2nd through 5th gears than the MT82 but are still faster in the 1/4 (mod for mod) with the 3.15 final. Anything more than 3.31's have proven to show negligible differences in the 1/4 mile. The trick with the 6R80 is not more gear but a higher stall converter to improve those 60 ft times.

 

[Mustang_Owner]

"If you want to accelerate faster, you're better off making more power, weight reduction, tire/suspension and driver mod."

Weight reduction can be tricky if you want to keep your seats in your car. I guess you can remove the can of fix-a-flat also. What else can you remove?

Replacing your tires with drag radials sounds good for acceleration, but I think your daily-driver would burn those sticky tires in less than 5000 miles. What is a good drag radial that fits the stock PP 19" wheels? I guess you could just buy a pair of wheels and drag tires also, but I really want to only keep one set of tires on my car and not have to change them all of the time. You could modify your suspension to keep car from bouncing as much, but does this improve acceleration?

Making more power is tricky since you are limited in what you can do without voiding the warranty. My goal is to keep my bumper-to-bumper full warranty in effect while also getting the best acceleration. Things like intake & exhaust don't kill your warranty. A super/turbo charger or nitrous kit might cause warranty issues with your engine/powertrain. Hoping that a tune from BAMA SCT X4 does not reduce the engine/powertrain warranty.

3.73 should give the best acceleration (other than 4.10), but I can't play with my toy car until I get my broken gear shifter fixed. My best time was 5.2 (after 10+ runs) before the shifter broke. Now that I see somebody getting 4.7 using 3.31 rear gears and stock, I need to get at least 4.7 with my stock 3.73...

 

[15GTBEN]

Making more power is tricky since you are limited in what you can do without voiding the warranty. My goal is to keep my bumper-to-bumper full warranty in effect while also getting the best acceleration. Things like intake & exhaust don't kill your warranty. A super/turbo charger or nitrous kit might cause warranty issues with your engine/powertrain. Hoping that a tune from BAMA SCT X4 does not reduce the engine/powertrain warranty.

If you want to 100% maintain your powertrain warranty do not tune.
There may be some dealer installed options that come with a Ford Racing 3/36 supplemental powertrain warranty like FRPP supercharger or FRPP Tune in the near future.
In my prior experience with tuning the mild gain was not worth the potential warranty loss. I have had tunes from AED, Mike Roush, BAMA and STEEDA that all produced so so gains compared to stock and were nowhere near my expectation or what people reported on the internet.
After 85 flashes and tons of datalogging I ended up going back and staying stock in my 14' auto GT. If you must tune, I would at least wait a while until the tuners have the 2015's figured out and not be a guinea pig.

With all that said, my 2015 GT will be staying 100% stock!

 

[Budwise]

You can drop 40 pounds easy in just the wheels by going to a forged wheel.

 

[Strokerswild]

Hmmm.

After reading this thread I'm beginning to rethink my PP order. Wondering if I shouldn't spec the square 19" wheel setup and 3.55s instead....

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