High Rpm quick shifting gt350

[coyote.colby]

Hello all,

This is my first time behind a Mustang without a MT-82. I've noticed with my tr-3160 in my new GT350 it hates high rpm quick shifting. Does anyone know why? (Yes, I'm pushing the clutch all the way in.) It is still on the stock clutch and shifter. Does it need a new clutch? any and all help will be appreciated

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[NightmareMoon]

Upshifting? Downshifting? There are techniques to both. Are we just talking about straight line upshifting stuff? Does it lurch forward or backwards when the clutch is released in the new gear?

if theres any resistance to putting a transmission into gear its usually because the internal shafts speeds dont match yet and the syncros are working hard to get the transmission inout/output gear speeds to match before it can go into gear.

be nice to your transmission and it will last. Try to force it to shift harder or faster and you’ll wear out syncros, break gear teeth etc.

It might be pretty hard to diagnose your issues (be they technique or mechanical) without seeing what your hands and feet are doing. As soon as the clutch is pressed, the front/engine half of the transmission starts to coast down, and it will go into a higher gear as soon as its slowed down enough to match the back/differential half of the transmission. The amount it needs to slow to match is greatest when closer to redline.

 

[Champale]

"The MT82 shifts better than the 3160" - said exactly no one, ever. I've owned 2 Boss 302s with the MT82 and now a GT350R with the 3160. There is no comparison in terms of shift action and ability to shift as fast as your hand can move, especially at max revs.

OP - I suspect something isn't right with your car. Might be as simple as needing a fluid bleed.

 

[coyote.colby]

Upshifting? Downshifting? There are techniques to both. Are we just talking about straight line upshifting stuff? Does it lurch forward or backwards when the clutch is released in the new gear?

if theres any resistance to putting a transmission into gear its usually because the internal shafts speeds dont match yet and the syncros are working hard to get the transmission inout/output gear speeds to match before it can go into gear.

be nice to your transmission and it will last. Try to force it to shift harder or faster and you’ll wear out syncros, break gear teeth etc.

It might be pretty hard to diagnose your issues (be they technique or mechanical) without seeing what your hands and feet are doing. As soon as the clutch is pressed, the front/engine half of the transmission starts to coast down, and it will go into a higher gear as soon as its slowed down enough to match the back/differential half of the transmission. The amount it needs to slow to match is greatest when closer to redline.

up shifting i just got off the phone with ben calimer transmissions it they said its most likely the clutch and if its not that its the synco's. this is my first ever gt350 and ive just picked up this car about 3 weeks ago and i understand it might drive and feel different then a mt-82

 

[coyote.colby]

'The MT82 shifts better than the 3160" - said exactly no one, ever. I've owned 2 Boss 302s with the MT82 and now a GT350R with the 3160. There is no comparison in terms of shift action and ability to shift as fast as your hand can move, especially at max revs.

OP - I suspect something isn't right with your car. Might be as simple as needing a fluid bleed.

i really liked the mt-82 i had a gen 2 fbo e85 car so a gen 1 mt82 and i beat the hell out of that stock trans and clutch and when i mean beat pulls alot of the times no lift shifting tracking the car ALOT all while daily driving it

 

[coyote.colby]

Upshifting? Downshifting? There are techniques to both. Are we just talking about straight line upshifting stuff? Does it lurch forward or backwards when the clutch is released in the new gear?

if theres any resistance to putting a transmission into gear its usually because the internal shafts speeds dont match yet and the syncros are working hard to get the transmission inout/output gear speeds to match before it can go into gear.

be nice to your transmission and it will last. Try to force it to shift harder or faster and you’ll wear out syncros, break gear teeth etc.

It might be pretty hard to diagnose your issues (be they technique or mechanical) without seeing what your hands and feet are doing. As soon as the clutch is pressed, the front/engine half of the transmission starts to coast down, and it will go into a higher gear as soon as its slowed down enough to match the back/differential half of the transmission. The amount it needs to slow to match is greatest when closer to redline.

also straight line btw

 

[NightmareMoon]

up shifting i just got off the phone with ben calimer transmissions it they said its most likely the clutch and if its not that its the synco's. this is my first ever gt350 and ive just picked up this car about 3 weeks ago and i understand it might drive and feel different then a mt-82

If the clutch isn't fully disengaging that will cause issues. You'll be waiting for the engine to spin down before it will go into the next gear. That can happen if the slave cylinder goes out.

 

[JetGray_Mach1]

I just want to add. The Tremec in the Mach 1 does not hate high rpm shifting at all. My MT82 on the other hand hated it every time. The Tremec is night and day compared to the MT82 but it also requires a committed shift, unlike the MT82. I would check fluid first then if issue continues maybe need new clutch. Since you are not the first owner who knows what the previous owner did to it. Are you having any other engagement issues? clutch chatter and such?

 

[coyote.colby]

I just want to add. The Tremec in the Mach 1 does not hate high rpm shifting at all. My MT82 on the other hand hated it every time. The Tremec is night and day compared to the MT82 but it also requires a committed shift, unlike the MT82. I would check fluid first then if issue continues maybe need new clutch. Since you are not the first owner who knows what the previous owner did to it. Are you having any other engagement issues? clutch chatter and such?

Noting other then the upshifting car down shifts and rev matches and takes off just fine

 

[coyote.colby]

I just want to add. The Tremec in the Mach 1 does not hate high rpm shifting at all. My MT82 on the other hand hated it every time. The Tremec is night and day compared to the MT82 but it also requires a committed shift, unlike the MT82. I would check fluid first then if issue continues maybe need new clutch. Since you are not the first owner who knows what the previous owner did to it. Are you having any other engagement issues? clutch chatter and such?

What fluid should I use amsoli?

 

[JZTRK]

I had an issue with my 2016 gt350 after I installed the softer pedal spring. the pedal would stick on the floor at redline shifting and I would have to hook it with my toe to bring it back up. the problem went away after the stock spring was reinstalled

 

[coyote.colby]

I had an issue with my 2016 gt350 after I installed the softer pedal spring. the pedal would stick on the floor at redline shifting and I would have to hook it with my toe to bring it back up. the problem went away after the stock spring was reinstalled

The Stock spring is in the car

 

[mavisky]

No one has ever preferred the MT82 to the TR3160.

I've only ever missed gears because I've been dead tired on the way home and shifted too slow. I've only ever missed one gear at WOT and that was due to a wild course I was running where I tried to grab second while on a 20 degree decline the felt like the car was falling off a building.

If you're having issues getting it to change gear, you've got an issue with something in your system and we can't really diagnose that via forum without disassembled pics or something. Just not enough info for us to go on. As you're the second owner it's possible that previous owner has damaged something and that may have been part of their reason for offloading the vehicle.

 

[coyote.colby]

No one has ever preferred the MT82 to the TR3160.

I've only ever missed gears because I've been dead tired on the way home and shifted too slow. I've only ever missed one gear at WOT and that was due to a wild course I was running where I tried to grab second while on a 20 degree decline the felt like the car was falling off a building.

If you're having issues getting it to change gear, you've got an issue with something in your system and we can't really diagnose that via forum without disassembled pics or something. Just not enough info for us to go on. As you're the second owner it's possible that previous owner has damaged something and that may have been part of their reason for offloading the vehicle.

It’s goes into gear just fine, it’s like a jolt after it take the gear

 

[mavisky]

I don't know man, you're going to have to describe the exact scenario a lot better.

So at WOT and high rpm you clutch in and move the lever to the next gear. It goes in to gear, but then there's a jolt before you let the clutch out? Or is that a jolt while you let the clutch out? Or is the jolt after you've let the clutch all the way out and the car should be accelerating again? Are you lifting off the gas or are you trying to flat-shift it without lifting?

As you can see here the car has no issue going into gear while spinning or at over 8,200 rpm in most scenarios. The only "jolt" you should be feeling is a little extra bite from the twin disc in the GT350 as compared to the old clutch in your MT82 GT if you're "dumping" the clutch when you go to let it back out after you've selected the next gear.

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