[Xaxas]

So I was watching Doug Demuro's video on the IS300 wagon and he mentioned how those cars are swapped, decided to do a curiosity Google search and found out the T6060 (T56) is a popular swap for these, but I also noticed something curious, there's a T56 with lower gear ratios for 1st, 2nd and 3rd, decided to input the numbers in a calc and this are the speeds I got at 6500 rpm.

1st: 2.97 @ 48 mph (vs 2.66 @ 54 mph)
2nd: 2.10 @ 68 mph (vs 1.78 @ 80 mph)
3rd: 1.46 @ 98 mph (vs 1.3 @ 110 mph)
4th: 1.00 @ 143 for both

One of my pet peeves with the Camaro is that the gears are too loooooong and it would this swap would make it more fun for spirited/track driving seeing you're changing gears more often at the cost of cruising comfort and city MPG (but who cares?).

So I'm just posting this to get opinions/thoughts, wondering if all the features like no lift shift and rev-matching would still work.

[Vtor_ZL1]

As someone who owned a stupid geared IS300 that would buz 4K rpms at 80mph.. no thanks!


Change the rear end... easier path. Even easier... shorter tire.

[Xaxas]

Originally Posted by Vtor_ZL1

As someone who owned a stupid geared IS300 that would buz 4K rpms at 80mph.. no thanks!


Change the rear end... easier path. Even easier... shorter tire.

Don't think there's any any options for the e-diff, plus 4th, 5th and 6th and the same ratios so it would have the same issue.

[Vtor_ZL1]

Magnum version of tremec is essentially beefier version of TR6060 and that can be ordered w custom gear ratios (or at least some of them).


https://www.txdrivetrain.com/product.../tr6060-gears/


Sounds like easy way to spend $10-15K

[Xaxas]

Originally Posted by Vtor_ZL1

Magnum version of tremec is essentially beefier version of TR6060 and that can be ordered w custom gear ratios (or at least some of them).


https://www.txdrivetrain.com/product.../tr6060-gears/


Sounds like easy way to spend $10-15K

Not sure where are you getting that hilariously big figure from when you can get a TUET11012 for $3500, and the site you listed has the same gears available to all T52's, those are the replacement parts so no "custom" gears.

[Vtor_ZL1]

well.. by the time you drop the trans, crack open the gear case, swap in however stock parts they are.. you're few $K in labor and parts. And if you have to ship it in either directions.


https://americanpowertrain.com/shop/...magnum-for-gm/


I guess cheaper than I expected but its for T56.. not the TR6060 family.


AFAIK it's not the same-same.

[s346k]

t56 magnum is mostly the same as 6060 internally. same power ratings.