GreenS550
Well-Known Member
- Joined
- Nov 18, 2017
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- 126
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- Location
- Houghton, MI 49931 Oakland, MI 48363
- First Name
- Bob
- Vehicle(s)
- 2019 Mustang GT Premium 2020 Explorer Limited
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- #1
I have been thinking of how to get more grunt off the line in my Bullitt. These gears coupled with the higher RPM of peak HP has me looking at options. Yes, I could put a 2017 MT82 in my Bullitt. Too expensive and other issues. May as well put a blower in for a few bucks more.
So, I compared gear ratios of our Bullitts with pre-2018 Mustang GTs. Here are links to the two specs:
https://media.ford.com/content/dam/fordmedia/North America/US/2015_Specs/2015_Mustang_Specs.pdf
https://media.ford.com/content/dam/...ses/Mustang/2018Ford_Mustang_Tech_Spec_EU.pdf
Ford does state the ratios are to meet mileage standards. Apparently just a bit of shifting with our more powerful cars could drop MPG 1 and make our Mustangs "gas guzzlers".
So, doing a bit of math, for 1st to be the same final drive ratio as a 2017 GT with 3.73s our Bullitts would need a 4.21:1 axle ratio. That ratio, if it were available would still leave 2nd a bit longer than the 2017 transmission. These are really long gears.
Now that said I'm thinking 4.11:1 albeit a bit longer than the 2017s might be just perfect. With our ridiculous 6th gear, highway cruising would still give decent 22-23 MPG.
Any thoughts?
`
So, I compared gear ratios of our Bullitts with pre-2018 Mustang GTs. Here are links to the two specs:
https://media.ford.com/content/dam/fordmedia/North America/US/2015_Specs/2015_Mustang_Specs.pdf
https://media.ford.com/content/dam/...ses/Mustang/2018Ford_Mustang_Tech_Spec_EU.pdf
Ford does state the ratios are to meet mileage standards. Apparently just a bit of shifting with our more powerful cars could drop MPG 1 and make our Mustangs "gas guzzlers".
So, doing a bit of math, for 1st to be the same final drive ratio as a 2017 GT with 3.73s our Bullitts would need a 4.21:1 axle ratio. That ratio, if it were available would still leave 2nd a bit longer than the 2017 transmission. These are really long gears.
Now that said I'm thinking 4.11:1 albeit a bit longer than the 2017s might be just perfect. With our ridiculous 6th gear, highway cruising would still give decent 22-23 MPG.
Any thoughts?
`
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