Low Torque Issue

[2021 Mach 1]

I previously owned a M1 with Tremec. I enjoyed it but felt like the car in low-gear pulls had little torque until way up in the rev-range. I understand that the factory tune made it that way to meet fuel-economy regulations etc. I now have a M1 A10 on order. I never drove one. Will the auto (besides shifting faster) help to mitigate the low-torque feeling of the car during acceleration? Thanks

Sponsored

 

[Goodwood]

Never had a manual Mustang GT, but 1st gear in my '22 Auto is insanely low, so low, in fact you can start off in 2nd with no problem whatsoever. You'll be fine if you want to burn some rubber.

 

[Charlemagne]

Will the auto (besides shifting faster) help to mitigate the low-torque feeling of the car during acceleration?

I haven't driven Tremec so can't directly compare, but I think you'll notice the difference, the gears are shorter. It will never be turbocharged/EV AWD, though. These cars want RPM if you want power and with A10 you can stay in the powerband more.

 

[murick]

I previously owned a M1 with Tremec. I enjoyed it but felt like the car in low-gear pulls had little torque until way up in the rev-range. I understand that the factory tune made it that way to meet fuel-economy regulations etc. I now have a M1 A10 on order. I never drove one. Will the auto (besides shifting faster) help to mitigate the low-torque feeling of the car during acceleration? Thanks

Here are the gear box ratios for Tremec and 10R80 copied from the tech spec. Since you are from the UK you have 3.55 LSD even with Tremec, so you can make direct comparison between the two.

The 1st gear in auto should work far better (to transfer the torque) than the 1st gear in Tremec. As soon as you shift to the 2nd though the advantages flips to Tremec. I believe 10R80 will switch to the 2nd and 3rd gear pretty fast, but you can probably try to keep it in gear manually.

 

[2021 Mach 1]

Here are the gear box ratios for Tremec and 10R80 copied from the tech spec. Since you are from the UK you have 3.55 LSD even with Tremec, so you can make direct comparison between the two.

The 1st gear in auto should work far better (to transfer the torque) than the 1st gear in Tremec. As soon as you shift to the 2nd though the advantages flips to Tremec. I believe 10R80 will switch to the 2nd and 3rd gear pretty fast, but you can probably try to keep it in gear manually.

Thanks for ratios. Second gear in the A10 of 2.99:1, shouldn't that be better to deliver torque than the Tremec's 2.23:1?

 

[2021 Mach 1]

Never had a manual Mustang GT, but 1st gear in my '22 Auto is insanely low, so low, in fact you can start off in 2nd with no problem whatsoever. You'll be fine if you want to burn some rubber.

My main goal is to come out of a turn and punch it and lay some rubber and get a bit sideways

 

[cerbomark]

My main goal is to come out of a turn and punch it and lay some rubber and get a bit sideways

If you turn OFF the nannie controls they will all do that. (got to be in the right gear if you drive the tremec ).

 

[raptor17GT]

My main goal is to come out of a turn and punch it and lay some rubber and get a bit sideways

you'd have been better keeping the manual box so you can select a low gear and know it wont change up but the A10 should allow you do the same with one of its drive modes. Just don't hit anyone eh ? Remember you owe me a chat and drive if you bring your new car up north

 

[2021 Mach 1]

you'd have been better keeping the manual box so you can select a low gear and know it wont change up but the A10 should allow you do the same with one of its drive modes. Just don't hit anyone eh ? Remember you owe me a chat and drive if you bring your new car up north

Definitely mate, will let you know when I make it to those awesome roads you have up there.

My current thoughts are to first drive the car stock, then put on an X-pipe, then do a tune to increase low-end torque, then put on headers/hi-flow cats. But at any step stop if I'm satisfied. The less mods the better. Obviously, if that's not enough then go for the Whipple.

 

[raptor17GT]

Definitely mate, will let you know when I make it to those awesome roads you have up there.

My current thoughts are to first drive the car stock, then put on an X-pipe, then do a tune to increase low-end torque, then put on headers/hi-flow cats. But at any step stop if I'm satisfied. The less mods the better. Obviously, if that's not enough then go for the Whipple.

yeah great roads pish weather 99percent of the time but that'll make it easier to hang out the rear haha. Honestly, you will have no issue popping the rear end out, i have done it plenty on mine while behaving like a tool and the engine doesn't need more low end torque for that. Just a low gear and heavy right foot. Personally i like to go forwards in a straight line so i dont try to behave like that, 20+ years driving mid engined cars with zero TRC taught me a SRF is much cheaper than new wheels and bodywork. A snow covered car park with no posts / rails is however an adults playground We all have our little joys in life

* SRF = Sensitive Right Foot

 

[Zelek]

The power band of this car is in the 4-7k rpm range. Anything below that will be sluggish. You'd need a Camaro for more low end with a pushrod engine. Your other solution is a Whipple.

 

[murick]

Thanks for ratios. Second gear in the A10 of 2.99:1, shouldn't that be better to deliver torque than the Tremec's 2.23:1?

The gears in Tremec have different spreads from the gears in 10R80. The auto shifts much more often (it is a 10-speed after all) than one would with Tremec. I was just saying that in auto mode 10R80 will have an advantage at the very start, but probably losing it quite fast when it will start rushing through the higher gears than one would have with Tremec and keeping it in gear.

But I guess, it is up to you and how you would drive it. Also I only drove the auto once and did not try anything fancy with that, so my observations are rather superficial.

 

[NJMike]

Whipple

 

[Charlemagne]

I was just saying that in auto mode 10R80 will have an advantage at the very start, but probably losing it quite fast when it will start rushing through the higher gears than one would have with Tremec and keeping it in gear.

In Sport shifting mode it holds RPM and doesn't shift rapidly, depending on how much the gas pedal is pressed. If you accelerate with full throttle, it'll shift at max RPM. If at half throttle, it shifts around 5000 RPM. When going through curves and braking and accelerating it holds gear nicely too for prolonged periods. It's so good that it seems as if it reads your mind actually, to me at least. Depending on the load it does its thing. You can prepare for curve with paddle or shift completely manually too, it works like a charm, you're in full control.

 

[sakman84]

Another option is upgrading the midpipe using an H pipe or X pipe. They will sound different, but I remember seeing a before and after dyno on this video from trucker and roll. Its also cheap. Keep in mind this isn't about peak numbers this is about power "under the curve". I have gone back and forth over doing this myself, I'd appreciate some more lower end torque. My fear is rasp or harshness, I have a very low tolerance for rasp.




here is some posts about this.
https://www.mustang6g.com/forums/threads/better-low-end-tq-x-pipe-or-h-pipe.123355/

Sponsored