We found the torque limit on a heavily modified 4L65E....... weird failure mode - the output shaft housing broke. I think the rest is OK - it'll need a tear down for inspection.
Delta from last year +30 RWHP, +70 LB/FT rear wheel torque... still lots left in to tune up. Run 5 came to a quick halt. My guess is another 30 - 50 HP just with the tune. Boost is still at 11 psi (same as last year).
(last year 480 RWHP and 430 Ft/Lb) Only change from last year - changed the intake cam CL.
With a billet main cap girdle and *MORE* drivetrain capacity no problem to make RW 800+ HP at say 16-18 PSI which is still low compared to some other engines at that power level.
Last edited by efi-diy; 10/09/10 07:58 PM.
