18+ GT Performance Pack Update

[Wittbrij]

I've even searched for E85 near me and it's a no go here in North Florida. I'm so stuck....can't decide on $1000 Ford power kit , $1000 custom tune and Intake , 2k+ headers and custom tune or just drop $1500 buck and get 4.09 gears. I've already done a AFE drop in filter and carbon trap removal. I don't daily drive and it's not a DD , 19 MT non PP.

I did 4.09 gears. I think it's the best bang for your buck if your never going fi, and don't drive huge amounts of highway.

Copying the engineering explained math, you have 3.55 gears on the nonpp.
3.55x3.237x420=4826 ft-lb
3.55x3.237x445=5113 ft-lb(445 is what ford and other tuners are getting with 91/93)
4.09x3.237x420=5560 ft-lb

You'd need to get to 480+ hp with 3.55 gears to get the same torque that 4.09 gears and stock tune.
3.55x3.237x484=5561 ft-lb

If you have 3.73 obviously the "gains" would be different.

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[Mrzero]

I did 4.09 gears. I think it's the best bang for your buck if your never going fi, and don't drive huge amounts of highway.

Copying the engineering explained math, you have 3.55 gears on the nonpp.
3.55x3.237x420=4826 ft-lb
3.55x3.237x445=5113 ft-lb(445 is what ford and other tuners are getting with 91/93)
4.09x3.237x420=5560 ft-lb

You'd need to get to 480+ hp with 3.55 gears to get the same torque that 4.09 gears and stock tune.
3.55x3.237x484=5561 ft-lb

How much did the gear swap cost you?

Thanks

 

[Wittbrij]

950 for the labor, 250 for the gears. I went with the best driveline shop in the area. As other members mention, gear swaps are best left to very qualified shops.

Not that these cars are for hypermilers, but I am getting better mpgs with 4.09 everywhere below 80 mph. Plus I'm out of drone rpm on the highway which saved some additional exhaust mod cost.

 

[Mrzero]

950 for the labor, 250 for the gears. I went with the best driveline shop in the area. As other members mention, gear swaps are best left to very qualified shops.

Not that these cars are for hypermilers, but I am getting better mpgs with 4.09 everywhere below 80 mph. Plus I'm out of drone rpm on the highway which saved some additional exhaust mod cost.

Appreciate the info!

 

[Mustangpursuit]

I think this would be a good option for me since I have 3:15 gears and I DD and go on hwy a lot so just add this for little nice extra power and not deal with gears.

I thought I saw somewhere to stick with lower gears such as with 3:31 for higher NA power upgrades and 3:15 for Superchargers?

 

[Wittbrij]

I think this would be a good option for me since I have 3:15 gears and I DD and go on hwy a lot so just add this for little nice extra power and not deal with gears.

I thought I saw somewhere to stick with lower gears such as with 3:31 for higher NA power upgrades and 3:15 for Superchargers?

What year, cause the mt6 changed in 2018

 

[Mustangpursuit]

What year, cause the mt6 changed in 2018

2019 A10 non PP GT, comes with 3:15 if you do not tick the 3:55 option or get a PP which comes 3:55 standard.

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