What type of tranny and differential do you use on your turbo 20 B motors? T2? FD? Other? Custom? Pleas elist HP you make.

 

stock cosmo 20b trani here
tII diff.
hp should be at about 325 but hope to be at 450 soon.

matt

 

any one running around the 500-700 hp range thas more what I was thinking?

 

i'm running stock t2 stuff right now, it should be fine until about 450lbsft or so.

mike

 

Wouldn't that be an automatic? Yuck....

 

ok what kind of manual transmission.

 

lol YES its an auto! and so far I love it!
the cosmo auto handles the power great and goes
like mad, it shifts at the red line and will spin the wheels
when it goes for 2nd.
I bet you cant change gears and keep the boost up

I can hold the brake and gas at the same time to build
good boost off the line, launching as good if not better
than a manual trani. It's truly better than I thought it would be

matt

 

I am running net hp of about 590. Stock tranny at the moment but going 6 speed next season.

 

HP doesn't kill transmissions, torque does.

 

No kidding .....I am changing trannies as I need different ratios.

 

Has anyone considered using a 'vette gearbox? I believe there is one above the LT-1? called something like a "SW8" ? apparently it's a 6-sp but when you disconnect the sensors to it, it has no protection against going into reverse (if you're concerned about that).

 

???

LT-1 was an engine from 1970, unless you want a Muncie 4-speed (not a bad idea, really) then it's not a good plan.

The LT1 from more recently is also an engine, not a transmission. In the Corvette it had a bulky, expensive ZF transmission, and in the Camabird it had a Borg-Warner T56.

 

you mean the trans-maro? actually the 20b so far feels like its gonna have a wider torque band, my 1st gear is almost pointless now

mike

 

Hell then just go for a Muncie M-22... straight cut gears, 2.2:1 First, 1:1 Fourth, and they could handle big-block torque and the synchros could handle 7000rpm shifts