6l80 in a fbody?
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From: winter springs, fl
6l80 in a fbody? i was looking at rebuilding my motor but wondering in stead of building it for high hp applications, why not swap in one of these new trannies from an escalade rather than a th400 or 4l80
I think that would be pretty awesome to have a 6-speed auto in an F-Body. It would have the consistancy and track capabilities of an auto, with the driveability and fuel mileage of a 6-speed.
I'm sure it can be retrofitted, don't know what kind of power they are capable of, but GM rates it to 430ft/lbs of torque.
1st gear is a 4.02, now thats a monster
I'm sure it can be retrofitted, don't know what kind of power they are capable of, but GM rates it to 430ft/lbs of torque.
1st gear is a 4.02, now thats a monster
Teching In
Joined: Jan 2006
Posts: 11
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From: Pacific Northwest
I really like the specs on the new 6l80e. That 4.02 first gear and the .67 sixth gear seem like the best of both worlds in an automatic.
I just wonder how well they will hold up. Also we have the issue of an aftermarket controller, which I think is a problem that will be short-lived.
I bet, in the future, there will be a lot of people wanting to get their hands on one of these transmissions for a swap.
I just wonder how well they will hold up. Also we have the issue of an aftermarket controller, which I think is a problem that will be short-lived.
I bet, in the future, there will be a lot of people wanting to get their hands on one of these transmissions for a swap.
Staging Lane
Joined: Nov 2005
Posts: 90
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From: Germany
Rearend gear on an A4 car is usually lower than on an M5/6. around 2.73 for V8 or 3.23 for V6 / DOD V8. M5/6 cars got something like 3.4 -4.1. So why change it?
The A6 (isn't it actualla a SMG 6 ? ) has its own Control-Unit (again)
The A6 (isn't it actualla a SMG 6 ? ) has its own Control-Unit (again)
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umm.....maybe im misreading what you posted....but .50 is a higher gear than .67 if you wanted to make 6th gear lower....go with a bigger number
Originally Posted by ScrapMaker
why is 6th gear so dang high?? the t56 is at .50... seems that 5th gear would be .67 then 6th would be .50 or lower... this makes no sense... it will hardly help mileage at all over our 4L60Es
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Originally Posted by Gm-LSX
Rearend gear on an A4 car is usually lower than on an M5/6. around 2.73 for V8 or 3.23 for V6 / DOD V8. M5/6 cars got something like 3.4 -4.1. So why change it?
Tech Resident
Joined: Jan 2006
Posts: 5,117
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From: Philly
Originally Posted by Sabre_Logos
I just wonder how well they will hold up.
i'm very excited about them. i hope someone finds a way to make them work. 
Originally Posted by Urban Legend
What are you talking about?
On The Tree
Joined: Mar 2005
Posts: 103
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From: so cal
well i went to an atra seminar on this trans and i have to tell you it is awsome. it basically is a baby allison 1000. The gearset and clutchpaks are just a smaller version, for retrofits it will be interesting to see. it also has a stock double lock up plate converter, 10" diameter. The biggest thing is that the ECU is actually in the trans. you take the pan down and there it is! so someone will have to piggyback or splice into all the factory sensors like tps to run it. The great thing with the gear spread is that you will always be in max powerband, and with such a low 1st you can probabley go the next rear end ratio( 4.10 to 3.73, or 3.73 to 3.42) and still have great launches. As far as us builders the cool part is the vb and solenoids are one unit and can be tested on the bench. That way you cna check a sticky valve or bad slenoid before the pan is put on! however if you guys think this thing is cool wait till 2008 (specifially look at the tahoe series that trans will blow all of you away! lest say 25-60% better mileage and a gain of .2 in et)
Originally Posted by back4more
it basically is a baby allison 1000.
Take out the TM and you will shortly retract that statement. GM has reached a new level of penny pinching with this newest generation of transmissions and you will see it in the years to come. Why do you think the trans has a seperate 32-bit controller? Shifting a trans doesn't require that much computing power. Nope. All for warranty! They are protecting the trans since it is weaker than what it is really rated as.
Tech Resident
Joined: Jan 2006
Posts: 5,117
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From: Philly
Originally Posted by 2002_Z28_Six_Speed
Take out the TM and you will shortly retract that statement. GM has reached a new level of penny pinching with this newest generation of transmissions and you will see it in the years to come. Why do you think the trans has a seperate 32-bit controller? Shifting a trans doesn't require that much computing power. Nope. All for warranty! They are protecting the trans since it is weaker than what it is really rated as.
It seems to be the trend. Just look at the auto vs manual situation in the Solstice.
It just seems fishy that GM stated that the 6 six speed tranny will occupy the same space that the 4 speed would. Funny, right? That GM brags about how this transmission is loaded with diag functions and oil life monitors. The whole point of going to this new technology was to have a more modular setup TO SAVE MONEY while creating a stepping stone to get to the 100 000 warranty. You know corporate isn't going to let anyone hurt these. The only time you will ever get full engine power is in-gear with TM protecting it during the shifts.
I am not saying these are crap trannies. I am just saying if you are looking for a performance adder don't look here. I will be willing to bet tranny swapping will become even more popular with the lastest generation of late model GM modifiers.
It just seems fishy that GM stated that the 6 six speed tranny will occupy the same space that the 4 speed would. Funny, right? That GM brags about how this transmission is loaded with diag functions and oil life monitors. The whole point of going to this new technology was to have a more modular setup TO SAVE MONEY while creating a stepping stone to get to the 100 000 warranty. You know corporate isn't going to let anyone hurt these. The only time you will ever get full engine power is in-gear with TM protecting it during the shifts.
I am not saying these are crap trannies. I am just saying if you are looking for a performance adder don't look here. I will be willing to bet tranny swapping will become even more popular with the lastest generation of late model GM modifiers.
Originally Posted by spy2520
he's saying that the .67 6th gear in the 6l80e and the .50 in the t56 arent all that different when you factor in that most likely a4 cars will have 2.73/3.23 gears, while the m6 cars will most likely have a 3.42 or higher(numerically). of course thats for stock cars, i doubt its relevant in the case of retro-fitting...
Thanks for clarifying, because that is not what I understood.
