I run on the street
But my car has run 93 in the Eighth, so no slouch. By the trapspeed and weight, this comes to ~430hp.
It has run at up to 195psi cylinder pressure.
I have, in the distant past, run the big output shaft, in the A833od, in the alloy box, both with and without the C/S bushed, behind the 367, and the only thing that I could break, was the tiny overdrive gear. and every time I broke one, it was by accident; in as much I forgot to get off the gas!
Yet;
in one case, I ran this very same box behind a lowly 318, and she stripped the entire front end off, losing all forward motion, lol.
So far, I think I have 3 or 4 busted A833ODs, and 1 or 2 spares not yet ever installed on anything I own.
The best advice I can give you is that you install some kind of overdrive lock-out, cuz in the heat of battle, you will likely forget that this box is a 3 plus 1 , and zing the od gear off. and when it goes there are at least 21 teeth flying around and nobody can predict where the will go. If they go thru the front drive gears, which are right beside it, you will be walking. I didn't do that, and wiped the last one out, about 4 years into the program.
That was when I called it quits and ordered a Commando gear-set from Passon, together with one of his alloy boxes and an alloy cover. That was around 2004, and I haven't ever blown anything else up.... besides clutch-discs... lol.
