New tci 6-speed??

[critter]

Probably not out of line for what it is but still well out of the range of the "average guy" out there. Sorry, I can't afford it. I'll be junkyard crawling for a home grown answer because I don't have that kind of money for my hobby car. I'm not dissing their product, I just wish there was SOME kind of automatic OD tranny I could put in my 450hp, 550 ft. lb. Pontiac Trans Am that would fry on the second hard shift. Oh, and it has to cost about $1,500. Yeah, I know...



OK, I'll shut up now.

[mjoc1]

THe trans is a 6L80e. It is GM's corporate six speed for the new camaro and the CTS. it replaces the 4l80E

called GM parts counter.

Mike

[Karch]

THe trans is a 6L80e. It is GM's corporate six speed for the new camaro and the CTS. it replaces the 4l80E

called GM parts counter.

Mike

Mike, the 6L80e has an approx. 4:1 first gear ratio, not 2.97, so I don't think it's the same thing.

Plus, the 6L80e is a really big trans, as I am hoping/wishing to get a pair of them. Actually, I'd like the 6L90e, as it has wider/stronger gears, supposed to handle more torque, and the CTS-V version is supposed to be a bit stronger/better for my applications.

[mjoc1]

I saw one in a camaro with a paddle shift setup. It looked really good. I wish i had taken photos of th install when i saw it.

Mike

[wcardoc]

It is based on a 4l80E case. Thats right from TCI. It's not the new trans from GM.

[MarkB]

You are right, the six speed being talked about on this thread is a modified 4L80E transmission. This is done through electronics and splits the 1-2 and 2-3 ratios. The overdrive stays the same as the 4L80E which is .75:1. This is a pretty slick setup. We have our own Bowler version in our shop truck and in a '68 Camaro with a 540 big block that we have been testing for about a year. The estimated TCI price of $5500 is very reasonable, we will be much more than that for a true 850 ft lbs transmission package, sorry. I wish we could offer a transmission that was more affordable for everyone. It seems like prices keep going up, but it is due to the quality parts, so if the only way we can offer a resonable transmission is to cheapen the product, we will not be doing that any time in the future.

As for the 6L80E it should really be on another thread. This is a great transmission, the weakest point is the programming. We have built a few for Corvettes and G8s. We offer a billet 9" x 11" converter, 300M input shaft and hub, and a clutch upgrade package. As for the aftermarket use, it is still a little ways off from being easy. As you know Speartech offers a harness package if you are using it with the LS series motor. But others will have to wait a bit longer. Plus for the size, be prepaired for a large tunnel and a transmisison pan that may hit speed bumps. We have new OEM GM transmissons in stock ready for modifications when the time comes to put them in our project cars.

[55ChevDelray]

The TCI version will come with an aftermarket planetary that has 2.97, 2.23, 1.57, 1.18, 1.1, .75 ratios as well as aftermarket mainshaft, input shaft, sprag assembly, stock depth pan and clutches. The complete package will come with transmission, converter, our TCU w/harness, paddle shifter for manual option, dipstick and cooler.

We will also have our transbrake 6-speed ready this spring.

Are you going to have one that will bolt up to a BBC. I'm building a 55 chev and wanting the ZZ502 and a 6 speed auto.

[Karch]

Are you going to have one that will bolt up to a BBC. I'm building a 55 chev and wanting the ZZ502 and a 6 speed auto.

They are stating there are two versions, LS series engines, and traditional Chevy.

The latter is the same for big block and small block, not to mention 4.3L V6.

Also, for us BOP types, I would think you can use the standard adapter kits to put it behind your BOP's.

[55ChevDelray]

They are stating there are two versions, LS series engines, and traditional Chevy.

The latter is the same for big block and small block, not to mention 4.3L V6.

Also, for us BOP types, I would think you can use the standard adapter kits to put it behind your BOP's.

Cool... hope they let us know when they've available..

[sporter]

I just converted from TH-400 to a 4L80E. Cost was as follows:

Jakeshoe 4L80E (local pickup): $1700 plus $400 core charge = $2100
Twist Machine Compushift TCU, display and paddle shifter: $1727
PTC lock-up Torque converter, 3300 stall: $820
TCI transmission adapter: $60
Dipstick: $60
New 3.5" steel driveshaft and 4L80E 1350 yoke: $300
Welding (custom crossmember): $30
Special low profile swivel line connectors: $40

Total cost: $ 5137.00

If $5500 includes the trans, TCU, paddles and Torque converter - that's a pretty good price.

Warranty?

Any chance of a retrofit kit for standard 4L80Es?

[icebird84]

thanks Ed
I can stop dreaming of getting one for my trans am, it cost more than my rebuild Ls1 be for it leaves the States will cost me over 1100 $ to my home

[dave281sc]

Will this be available with different O/D ratios like maybe .65 or .7?

Thanks,
Dave

[TCI]

Not at this time. It's currently only .75.

[critter]

After what I went through with my 80e I should have just bought one of these. I'd have saved money. Hindsight...