Who makes them and how much? This is a three beep car non track Or should i just stick with a th400. This is a turbo build. Seems the th400 is the cheapest way but im not a cheap person, "u have to pay to play" I know rosslers is badd *** aswell as conan for th400.

 

Th400

 

Yeah Im more for a th400 just want to check all my options. Hell it was your post that made me ditch the t56 lol.

 

I have an FLT setup but not making anywhere 1400hp

I know the Ohio boys used a Rossler setup in one of their 7 second street cars that I am sure was making well over 1400. I belive he said HIGH RPM would kill the pumps on them.

 

ck performance builds a good one says 1500hp. its about 4000k for one and you have the option to change planetary gear sets and some clutches. the 400 and 4l80 share some of the same parts anyways i think you just get over drive.

 

Wouldn't you want that 4th gear especially if you're roll racing?

 

don't need it racing, its just for cruising.

 

Oh I thought he meant he'd be doing high speed roll racing....top speed runs or something.

 

You still wouldn't use the 4th gear.. As far as I know you would burn up pretty much any over drive gear with WOT runs.. I'm sure a built one would hold up better but will go out sooner or later.
I'm no trans. expert but pretty sure the 4th gear is strictly cruising.

 

Yeah you're right but they do make 6 speed autos now, not sure if that would be an option for a car setup for that kind of abuse.

 

I think the same thing would come into play. There would only be so many gears that would take abuse. Just taking a stab, I would assume that just like a M6 you would have must shorter gears (shifting sooner) instead of an A3/4 and having longer gears (shifting later). There would still be the overdrive gears that would be useless.

I think the top speed would essentially be the same, just different shift points.

 

4L80E would be absolutely fine as long as you don't apply more the 900-1000rwhp when the shifter is in the 4th gear position....just always remember to go to D3 (or lower) when really squeezin the throttle.

Add in some TQ management in the 3-4 shift (and some mods to the trans) you could probably get away with wide open 3-4 shifts.

 

Great info guys im going with a 400, considering it will cost me in the aera of 7k for a 4l80e set up. Plus there are more 400 out there holdin some serious power. Cruse is ok with a 400 with 2.73 gears and big tiresshould turn around 2.6 k at 70 mph.

 

tci 272500 any vender can get it and tci rates it at 850 but house of hot rods has luck in the 13-1500 range. 4l80 reverse manual valve body with trans brake.

 

If you do it right, a 4L80 will only be about $500-700 more than a Th400. BTW 3.00 gears, 26" tires, 2050 rpm at 70mph