Tips on wringing out power with the MT-82?

[torqued]

I've seen the posts where 10-speed owners rave about how fun the coyote motor is with that transmission. What I'm wondering is how can we 6-speed owners try to simulate that.

I'm thinking of three categories of driving situation:

1) Freeway passing - Ok I got this part: Drop it into 3rd and away you go. I haven't looked where my revs end up when I'm starting at say 75 mph but I think there's still plenty of rev range left.

2) Street passing - 3rd doesn't cut it but I don't know how fast I can be going and still go to 2nd, with the 3.73 rear end. It's like it needs a 2.5th gear.

3) Stoplight pulling - I love manuals but I'm not skilled at them. I find myself pre-revving to 1500 and then slowly doing my thing. But it's uninspiring, so there must be a better technique.

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[Fly2High]

found these gear to max speed in a forum post. Not sure if this is the latest MT-82 where 4th is 1:1.

3.73 rear end
1st - 41
2nd - 62
3rd - 89
4th - 114
5th - 151
6th - 165 (limited)

 

[Zrussian13]

found these gear ratios to max speed in a forum post

3.73 rear end
1st - 41
2nd - 62
3rd - 89
4th - 114
5th - 151
6th - 165 (limited)

Those might be from the 15-17 but the ratios changed on the 18s and up. I know third gear tops out closer to the 114mph mark you have listed for 4th gear. The new mt82 had two overdrive gears.

To the op if I'm at 60mph I drop second if I want good acceleration. Anything over 60mph I usually just drop 3rd. Dont want to break a shift fork from the shock of that high rpm shift. As far as taking off at a stop you just got to keep practicing. Autos will always be faster off the line unless you plan on launching your car at every stop. I usually roll out normal then have my fun.

 

[Sivi70980]

As a driver, it feels underwhelming for sure. The 6th to 3rd freeway pulls are lackluster feeling but I'm sure any LE in the area will pull you over going triple digits. 2nd gear tops out slightly over 70mph but if you push it too hard it will lock you out of going into 3rd so 75mph is definitely 3rd gear territory imo.

I also have 3.73 and typically do my street passing in 2nd when it's safe to do so. I love revving out 2nd out of the exit of a corner that I typically go faster around than the person I'm passing so momentum is also very much on my side. And when passing, it's etiquette to force angry V8 sounds upon the passed.

Stoplight is all about practice and the will to really commit. This car does not forgive a half assed 1-2 shift at all. You have to be on it with your timing and pedal control for sure. Most times I don't deem attempting to tree the field at a stoplight worth it but I'm also a mostly chill driver in general. When the situation does come up though, it's very satisfying to smash all over an AWD STI or something.

 

[Kong76]

It's a tranny with German parts put together in China with a made in Turkey clutch disc. Good luck. I'm on my second with 35k miles.

 

[Silver Bullitt]

My car is an '18 PP2. So, with the smaller diameter 305/30/19 tires (26.2" diameter), 7500 rpm is:

1st - 48 mph
2nd - 75 mph
3rd - 110 mph

Anything 60 mph and under is 2nd gear for me. 60 mph in 2nd is 6000 rpm.

I have a friend with an '18 PP1 M6 with the stock 275/40/19 tires (27.66" diameter). 7500 rpm is:

1st - 51 mph
2nd - 79 mph
3rd - 117 mph

2nd gear for him at 60 mph is 300 rpm less at 5700 rpm.

With the smaller 26.2" tire, this effectively converts to about a 3.94 rear gear for me. We did some playing around awhile back, and I can consistently pull him from a dig or a roll to the top of 3rd gear. The smaller diameter tire on the PP2 was the only thing we could come up with for this (both cars are stock other than I have an H-pipe, whereas he still has the resonator).

My goal is to run an M/T ET Street in 325/30/19 (27" diameter), and see if I can cross the 1/4 mile trap in 3rd gear which should be right at 114/115 mph. I think this is very doable as I'm not sure if a stock M6 can trap this high with a good 60' (hopefully in the 1.75 to 1.80 range).

 

[GregP27]

My car is a 2019 GT and the gears I have are as follows at 7,400 rpm:

1st: 3.66; 44.6 mph
2nd: 2.43; 67.2 mph
3rd: 1.69; 96.6 mph
4th: 1.31; 124.6 mph
5th: 1.00; 163.6 mph
6th: 0.65; 251.2 mph

These are for MY tires, which are 285/35R-19s. Your mileage may vary. These are theoretical at 7400 rpm and, if I am not mistaken, I believe the real top speed is electronically limited to 157 mph. I suspect it would be drag-limited to something on the order of 175 mph if NOT electronically limited. That would be IF you had a gear other than 6th overdrive at 0.65. You'd likely stop at 163.6 if you have a stock transmission and stock engine due to drag and not enough torque to accelerate when you shift to 6th.

If you have other tires and want speeds at other rpm, post it. If it isn't too many, I can calculate and post.

I believe you might likely do some synchro damage if you tried to downshift to 2nd at 50+ mph unless you were manually assisting the rev-matching feature.

This is NOT a good car of choice for a top speed race with a supercar unless you have a supercharger and some intense desire to be a test driver. I'm not really sure the aerodynamics are good for 170 + mph ... might be. You can be sure the NASCAR Mustang is nowhere NEAR stock aero. None of NASCAR is anywhere near stock aero or STOCK anything else.

 

[Silver Bullitt]

My car is a 2019 GT and the gears I have are as follows at 7,400 rpm:

1st: 3.66; 44.6 mph
2nd: 2.43; 67.2 mph
3rd: 1.69; 96.6 mph
4th: 1.31; 124.6 mph
5th: 1.00; 163.6 mph
6th: 0.65; 251.2 mph

These are for MY tires, which are 285/35R-19s. Your mileage may vary. These are theoretical at 7400 rpm and, if I am not mistaken, I believe the real top speed is electronically limited to 157 mph. I suspect it would be drag-limited to something on the order of 175 mph if NOT electronically limited. That would be IF you had a gear other than 6th overdrive at 0.65. You'd likely stop at 163.6 if you have a stock transmission and stock engine due to drag and not enough torque to accelerate when you shift to 6th.

If you have other tires and want speeds at other rpm, post it. If it isn't too many, I can calculate and post.

I believe you might likely do some synchro damage if you tried to downshift to 2nd at 50+ mph unless you were manually assisting the rev-matching feature.

This is NOT a good car of choice for a top speed race with a supercar unless you have a supercharger and some intense desire to be a test driver. I'm not really sure the aerodynamics are good for 170 + mph ... might be. You can be sure the NASCAR Mustang is nowhere NEAR stock aero. None of NASCAR is anywhere near stock aero or STOCK anything else.

Stock transmission ratios for the '18+ M6 (MT82-D4) are:

1st - 3.24
2nd - 2.10
3rd - 1.42
4th - 1.00
5th - 0.81
6th - 0.62

The ratios you posted are pre '18 (MT82).

 

[boB]

I believe you might likely do some synchro damage if you tried to downshift to 2nd at 50+ mph unless you were manually assisting the rev-matching feature.

I downshift to 2nd at about 50 most days, it seems to work ok and in "race" exhaust mode it sounds great! Then I quickly switch the exhaust to "Quiet" as I enter the 55+ community in which I live. ;)

Stock transmission ratios for the '18+ M6 (MT82-D4) are:

1st - 3.24
2nd - 2.10
3rd - 1.42
4th - 1.00
5th - 0.81
6th - 0.62

The ratios you posted are pre '18 (MT82).

Mine is a stock '19 GT/PP1. Downshifting into 2nd at 50 mph does not rev the engine very high and I do it almost every time I turn into my neighborhood. It works ok and sounds great in "Sport" or "Track" exhaust mode. Then I quickly change the exhaust to "quiet" mode, 55+ neighborhood. ;)

 

[GregP27]

Well then, I stand corrected. I guess going to 2nd at 50 mph is OK after all. My PP1 is about 6 months old and has 3,000 miles on it. I plan to drive it awhile and take it to a track every once in a while, too. But not a dragstrip. Dragstrips are where I broke most of the parts I broke when younger. So, mine will grace road courses and I'll have fun and drive it at 80 - 85% of capability. I don't plan to wrap it around a guardrail.

I don't use high rpm for most street driving ... it's for fun drives only, well away from local Police.

Cheers!

 

[Silver Bullitt]

I downshift to 2nd at about 50 most days, it seems to work ok and in "race" exhaust mode it sounds great! Then I quickly switch the exhaust to "Quiet" as I enter the 55+ community in which I live. ;)

Mine is a stock '19 GT/PP1. Downshifting into 2nd at 50 mph does not rev the engine very high and I do it almost every time I turn into my neighborhood. It works ok and sounds great in "Sport" or "Track" exhaust mode. Then I quickly change the exhaust to "quiet" mode, 55+ neighborhood. ;)

7500 rpm in 2nd gear for you would be 79 mph (assuming stock tire size). 50 mph should only be about 4800 rpm, so you are very safe. 60 mph would be about 5700 rpm.

 

[boB]

7500 rpm in 2nd gear for you would be 79 mph (assuming stock tire size). 50 mph should only be about 4800 rpm, so you are very safe. 60 mph would be about 5700 rpm.

Not sure how the double post got in there, one was from yesterday but I never posted it. Raining today, Mustang stayed inside. :( Neighbors are probably happy.

 

[GregP27]

With 275/40 R-19s and 7500 rpm, you'd be going 68.1 mph in 2nd gear.

That's the ratios in my 2019 Mustang GT in which 5th is 1.000 : 1.. 2nd is 2.43, the differential is 3.73, and the tire diameter when inflated is 27.660 inches. If you have an earlier year, I do not know the stock gear ratios.

 

[Silver Bullitt]

With 275/40 R-19s and 7500 rpm, you'd be going 68.1 mph in 2nd gear.

That's the ratios in my 2019 Mustang GT in which 5th is 1.000 : 1.. 2nd is 2.43, the differential is 3.73, and the tire diameter when inflated is 27.660 inches. If you have an earlier year, I do not know the stock gear ratios.

Unless you've dropped an MT82 into your 2019, 4th gear is 1:1, hence the name change to MT82-D4. The ratios I posted above are for the MT82-D4 which is exclusive to 2018, 2019, and now 2020. 2nd gear in the MT82-D4 is 2.10:1. With the stock 275/40/19 tires and 3.73 rear gear, 7500 rpm in 2nd gear is about 79 mph.

MT82-D4 (2018+)
1st - 3.24
2nd - 2.10
3rd - 1.42
4th - 1.00
5th - 0.81
6th - 0.62

MT82 (2017-)
1st - 3.66
2nd - 2.43
3rd - 1.69
4th - 1.32
5th - 1.00
6th - 0.65

 

[Jackthewack]

I have a 19 with 3.55 gears not sure what mph I did in 1st gear but 2nd I hit about 85mph 3rd I hit about 115mph and never topped out 4th yet. I will go to 3rd if I'm doing 55+mph because I only have 3k miles and I try not to run it to hard yet.

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