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Greg Holmberg · 03-03-2018, 04:52 PM

Here's my dyno chart. I used the official NASA dyno provider, MCE Dyno, who uses a mobile one. Looks like you used the same dyno.

I got a peak of 192 HP and 176 ft-lbf of torque. I have the same muffler, but I still have the stock cats (to be street legal).

I see you got 197 and 178. I think I could get those 5 more HP if I replaced the cats with straight pipes.

I wonder how 197 at the wheels translates to HP at the crank. I think one loses about 15% through the gearbox and tires. So 197/.85 = 232 HP at the crank?

Is torque also lost through the gearbox, or only HP? Would it be 178 ft-lbs at the crank or 178/.85 = 209 at the crank?

03-03-2018, 04:52 PM	#993
Greg Holmberg Registered User Join Date: Jan 2015 Location: San Francisco bay area Posts: 70	Here's my dyno chart. I used the official NASA dyno provider, MCE Dyno, who uses a mobile one. Looks like you used the same dyno. I got a peak of 192 HP and 176 ft-lbf of torque. I have the same muffler, but I still have the stock cats (to be street legal). I see you got 197 and 178. I think I could get those 5 more HP if I replaced the cats with straight pipes. I wonder how 197 at the wheels translates to HP at the crank. I think one loses about 15% through the gearbox and tires. So 197/.85 = 232 HP at the crank? Is torque also lost through the gearbox, or only HP? Would it be 178 ft-lbs at the crank or 178/.85 = 209 at the crank? Last edited by Greg Holmberg; 03-03-2018 at 05:12 PM.