Since buying my car new in 2018 I've dyno'd at the same location in generally cooler weather to track progress. All work and ecu calibrations (tuning) is done by me.Im not paid or sponsored for this, its information that may with other data collecting nerds like myself.Stock with probably 2 or 3k miles i brought it in for its first dyno.
Bone stock m6 1ss on 93 pump.
I recall it making 404whp and 414tq but i can't find the picture so ill post the one i found which is 400whp 412tq.
For the 2nd phase/ FBO phase the car was fitted with 1"7/8 headers and mid pipes, catless, stock muffler. A JLT intake, LT2 manifold, ported stock tb and ecu settings where made thru hptuners. It made 463whp and 467wtq after some fuel adjustments on the dyno.
3rd phase was 2 cracked piston ring lands after a few years of time trial events. So I rebuilt the engine with Diamond forged pistons, stock c/r, arp rod bolts, head studs and pmax black bearings across the board. While in there i tossed in a brian tooley racing 225 cam, springs etc and had the heads cnc ported. Then added a 95mm tb and ported it because why not. Final numbers after some on dyno adjustments went from 507whp 518whp. After letting the car cool from runs and pulling off the oiled air filter, the car made 528whp and 486wtq and pulls to 7500. Overall pretty satisfied with the results not losing any torque.
