Which manual trans for track car?

[Flash68]

Originally Posted by 71RS/SS396

Bowler can build you a close ratio T-56 Magnum that has all the same parts that Tremec supplies to the Corvette racing team in the Rolex series, suppose to be good for 1,200 hp and 1,000 lb/ft of torque, which is what I'm running with 3.89 gears in the rear. This trans has a 2.29 first gear which is very nice for auto-x. 5th is .85 and 6th gear is I believe .67. I was able to muster 170 mph @7,000 rpm in 5th in the standing mile at the Sandhills Open Road Challenge.

That sounds like the perfect trans Tim.

I love my 2.26 first gear for autoX as well.

Cost?

[71RS/SS396]

Originally Posted by Flash68

That sounds like the perfect trans Tim.

I love my 2.26 first gear for autoX as well.

Cost?

It really is Dave, if you have enough motor to pull that first gear it accelerates like a s.o.b., 80+ in 2nd gear, I can run 11.30 et's @ 125 mph.

I won't quote a price for Mark but the Rockland Tranzilla (Mark didn't build his version yet) was $ 4K because they start out with a magnum and remove and replace a bunch of parts. The upgraded gears, shafts.... etc are $1,500. I will be buying from Mark in the future because his customer service is so good, he's hands down the best vendor I've ever worked with.

[Vegas69]

TKO 600 if you like to miss shifts and cuss like a sailor.

[GregWeld]

Don't choose a dog geared tranny for the street.... I don't think you'd be happy driving that at all....

I put a Richmond 5 speed in one of my Camaros --- that was the biggest POS shifting tranny I ever had... drove like a truck. So while it is beefy --- and has fancy heim joint linkage... NO THANKS.


I have a TKO 600 5 speed in my '32 Ford.... I'm not a fan of the way that shifts either and I've had that in and out a couple times. Part of that might be that the tranny is too heavy duty for the light little car.

[Vegas69]

That or it's a big pile of

[6D9 Matt]

Another vote for T56 magnum

[DaleTx]

^^ X2

I bought a T56 Magnum close ratio and it works great on the street and track. It’s easy to shift at any rpm… and has nice crisp shifts.

Gear ratios: 2.66, 1.78, 1.30, 1.00, .80, .63
Rated for 700 lb-ft. torque