RONIN LSX

iTrader: (44)

I've tried searching for this and you can imagine all the crap that came up...

Anyways, I'm building a 450 stroker and was going to do a A4 to M6 swap, but recently, I've been thinking of keeping it auto and doing the A6 instead. I like the idea of the paddle shifter and I think it would be cheaper and more durable in the long run if I keep everything Auto. The only thing is, I will have a monster can and there are 4.10s in the back.

But anyways, I was wondering what the difference between the 6L - 06e/80e/90e, and is there a difference between the 6Lx0e and the 6Lx0. I sometime see it with and without the "E" at the end. Also, are the A6 trans stronger than the T56?

Thanks!

Bo185

Well GM stopped using the "E" at the end in their nomenclature several years ago. As all transmissions are electronic now anyway. GM used the "e" to differentiate the electronically controlled trans for the mechanical one. Most people on the internet just add the ''e'' to everything still.

The 6l80 and 90 are similar but the 90 is little longer and has larger gear sets as well as a different output shaft size.

It will be a poor choice of trans with 4.10's and a small tire as the first gear will be worthless.

Plus unless you have a Gen IV motor you can't even run the 6l's transmissions with out the 58x crank trigger.

I would just run a 4l80 with those gears.

RONIN LSX

iTrader: (44)

BUMP for some more info on this because I think I really want to run a A6 with paddle shifting!

Bo185

What motor you running Gen III or IV? As the 6l80/90 will not work with a Gen III motor.

RONIN LSX

iTrader: (44)

It's an LS6

camaroz28lt1at

iTrader: (16)

You cant control the 6l80 with the 99-02 PCM.

RONIN LSX

iTrader: (44)

Why am I getting answer as if no one has ever put a A6 into a 4th gen before? I know it's been done and that's the info I am wanting.

Bo185

I sure there is one search, but its not a bolt in swap and not really easy!



Physically it will fit.

The Gen III electronics will not interface with the TCM in the trans. Basically you need to swap to a Gen IV motor or tear apart a Gen III motor add a 58x crank trigger, correct cam pick up, knock sensors and Gen IV ECM electronics thus making it a Gen IV.

So since you building a motor, you could make it a Gen IV and yes run the transmission with the right ECM and harness. It will not be cheap to do this!

That's pretty much your only choice to run the 6l80/90. As no one make a standalone controller for the 6l80/90. Been lots of talk for many years about one but I have yet to see one on the market.

Good luck!

hivoltagedriver

iTrader: (1)

TCI makes a 6-spd 4L80 with a paddle shifter and stand-alone computer. Might try that route.

Summit racing sells them as well as several other companies. Not cheap, but might be cheaper and easier than the 6L80 in the long run.

Straight from Summits website:

"These TCI 6x 6-speed GM 4L80E automatic transmission packages are the first aftermarket 6-speed automatic transmissions capable of handling 850 hp. They give you six forward gears (2.97, 2.31, 1.57, 1.18, 1.00, and 0.75) for quicker acceleration and increased fuel economy at cruising speeds. The TCI 6x 6-speed GM 4L80E automatic transmission packages are versatile transmissions that fit Chevy small block, big block, and LS Series engines. They also feature a compact design, allowing them to work in a variety of vehicle applications, including pro touring, street, and race vehicles. The TCI 6x 6-speed GM 4L80E automatic transmission packages include a paddle shifter, wiring harness, dipstick, and transmission cooler."