Would go well on your LS3 Gary!
Only if one falls into my lap from heaven.............
Would go well on your LS3 Gary!
We all seem to crave more power on here, but how far past 400rwkw can you safely go without forged internals on these motors?
Yes not many A6 owners hold onto those autos when making serious power, generally opt for the stronger powerglide box
Why does it seem a requirement to lose a heap of gears in order to get a stronger box? Surely one can adapt a 6L90 from a Gen F GTS these days?
Could be quite expensive but might well be an option?
I am wondering if it could be the fact that you would need many more parts in the same size box,
making more heat, requiring smaller parts which would in theory make the entire box weaker?
In the old powerglides all the parts are just big & strong.
I was thinking of 6L90E too a while ago...
Some things I found were;
The 6L90E is longer than a 6L80E. So a tailshaft mod is required.
A new gearbox crossmember is required.
6L90E torque converter has a higher stall rpm. It is also a 6 bolt flex plate vs a 3 bolt
Software update is required in the tune for a different TCM within the gearbox vs a 6L80E.
Talking to a few Auto builders... the 6L90E isn’t bulletproof. Plenty have gone kaboom and sifting for gold in the trans pan. Yes they are better but still will eventually fail or need a freshen up with big HP and abuse.
The 4L80E is a stronger box. My bro is bolting one up to a LSX454 in a HK. Beauty of the 4L80E vs a TH400 is that you get a strong box with an overdrive. Great for cruising and getting the RPM down so the motor isn’t revving it’s guts out on the highway.
VF II MY16 SSV-R Wagon with LSA Blower
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