I am trying to use the dynolicious app on my itouch and want to know what the drivetrain loss is for my 79 vette... How would I figure this out...?

I am trying to use the dynolicious app on my itouch and want to know what the drivetrain loss is for my 79 vette... How would I figure this out...?


You need to know 2 things first. The flywheel horsepower and the rear wheel horsepower. The rest is easy to figure out.

So how do i figure out the flywheel horsepower and the rear wheel horsepower?

I am new to this dynolicious program... and i've read up on the drivetrain loss and have just bumped into a lot of forums mentioning that its normal to have %20 loss... so idk...

Can you tell me how to figure it out...?

Find a speed shop with a dyno - this will tell you your wheel HP. You can either go the accurate route and have your engine pulled and hooked up to a load bank dyno and they can tell you the crank HP. Or you can use the factory published numbers - we all know how accurate they are. The percentage difference is the parasitic drive-train loss - it will be worse with an auto transmission.

Find a speed shop with a dyno - this will tell you your wheel HP. You can either go the accurate route and have your engine pulled and hooked up to a load bank dyno and they can tell you the crank HP. Or you can use the factory published numbers - we all know how accurate they are. The percentage difference is the parasitic drive-train loss - it will be worse with an auto transmission.
t-square is right , loss w /auto trans is about 12-15% fron flywheel HP lots of variables tho