Looks like Jack's is the place to go now

530whp

So Jack's gear set is all us 6spd guys need to handle about 500hp and some occasional track days?

shep advertised it as 600 hp. Not sure if that is wheel hp on a dyno or brake-hp at the crank.

My car was measured on buschur's dyno (tuned by david)

I would guess that would put me over 600 hp at the flywheel (there is some debate about this)

Usually quoted as flywheel HP, so if go with that.
I'll never see more than 400-450whp, so count me in.

Torque is what you should be worried about.

But yes my 6 Speed should be here tomorrow from Shepard, Upgraded 3,4,5 gears with rebuild.

Yeah, that is a good point too. I have always wondered how much of a difference the 5 spd would make during auto-x, whether it would give me a bit more in 2nd gear so I didn't have to ride the limiter in places. I would say overall it might be a bit of a wash. Don't get me wrong, I love my Shep built 6 spd


Also, how are you using the engine hoist? Last time I did it, I put the engine/trans together outside of the car, and then lifted the front of the car as high as possible and lifted the engine/trans into place using the hoist from above the engine bay. Had my wife lift the hoist while I wiggled the engine into place. Worked pretty slick. So, apparently all you need to swap a motor is beer and chicks. Anyway, something to try next time, unless it just wasn't working with the engine already in there.

The only way you'll be more MPH would be to run the 4.11 or 4.08 final drive on the 5 speed. The differences in speed between the 5 and 6 gearbox is minimal. Even 1st-4th gear from the IX 5 speed is similar to the 6 speed as far as MPH.

I've had TRE build my 6 speed, nearly impossible to give hard numbers on how it will do but it feels great and per TRE it's rated to more than what I'm making torque-wise.

Prob the best trans for road racing is the evo 9 gears with evo 8 3rd and 4th - had Shep build that for me, felt quite good.

Got me really interested in this. I'm aiming for 410-420whp for a weekend HPDE car. Glad to hear TRE, Jacks and Shep are still putting effort out into our cars!

on the wifemobile? or you get another 8/9 MR?

Out of the car is 1,000,000 times easier. But I had just put everything in and then remembered I didn't torque the flywheel bolts. I really wasn't looking forward to redoing everything. I used the hoist attached to the small loop on the top of the trans. I was largely able to manipulate it that way. In the end, I couldn't get it to rotate, lift, and move where I wanted so I sacked up and bench pressed it on. What a pain in the *** LOL.
I definitely prefer pulling the engine.

finally an alternative to shep.

the fd raises all gears. i've been told this makes 1st gear too tall for painless dd.

I just spoke to jack's and they verified its the same gear set.