When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Hello all!
No real comments if this is good or bad, I guess it shows no significant engine problems since this seems to be in line. For some reason, I didn't get a before sheet so this is after dyno tuning. I also have a new Mechman alternator (grrrrr) and new ATI harmonic balancer (bigger grrrrr).
Jeff
Darn signature appears to be missing:
2011 Grand Sport Convertible M6, Airaid CAI, new plugs and plug wires, no known engine mods.
Last edited by ProfJeff; Nov 14, 2024 at 10:44 PM.
OK so a STOCK 2011 C6 is rated at 430 Crank HP
Subtracting 12% of that for power train loss on a M6 trans --means STOCK RWHP on your car is about
385
Your car made 397 RWHP
Doing the math you gained 12 RWHP
Those are normal tuning HP increases Maybe even a bit on the low side-- Average is typically about + 17-19 RWHP
Dyno Results
