Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - Confirm understanding of lightweight mods

86TOYO2k17 · 07-01-2018, 05:20 PM

I thought flywheel = advertised engine HP (200)
And wheel hp was measured at wheels after drivetrain loss.
Wouldn’t your Flywheel HP be more like 220?

Although putting wheel hp + adding my weight to vehicle did give me really accurate times. 165whp 3000lbs auto 7.9sec and 195whp 2950 6.9sec actually pretty close to my own tests.

Did you add in weight of driver and or gas? Curious if you ever weighed your car with full tank + you in it. Some times listed curb weight is iffy if it includes gas or not

But anyways it looks like according to that 50lbs weight reduction is .1sec off 0-60 still not bad. My goal is to get the car+full tank of gas to be lighter then stock with zero gas. So I won’t have any negative weight reduction from full tank in a sense.

07-01-2018, 05:20 PM	#37
86TOYO2k17 Senior Member Join Date: Jan 2018 Drives: 2017 toyota 86 Location: PNW Posts: 2,131 Thanks: 336 Thanked 1,189 Times in 781 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	I thought flywheel = advertised engine HP (200) And wheel hp was measured at wheels after drivetrain loss. Wouldn’t your Flywheel HP be more like 220? Although putting wheel hp + adding my weight to vehicle did give me really accurate times. 165whp 3000lbs auto 7.9sec and 195whp 2950 6.9sec actually pretty close to my own tests. Did you add in weight of driver and or gas? Curious if you ever weighed your car with full tank + you in it. Some times listed curb weight is iffy if it includes gas or not But anyways it looks like according to that 50lbs weight reduction is .1sec off 0-60 still not bad. My goal is to get the car+full tank of gas to be lighter then stock with zero gas. So I won’t have any negative weight reduction from full tank in a sense. Last edited by 86TOYO2k17; 07-01-2018 at 05:34 PM.