Injector Sizing/Duty Cycle for high HP Solid Roller 383
09-23-2004, 01:15 PM
#16
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Re: Injector Sizing/Duty Cycle for high HP Solid Roller 383
My shop won't even print out the torque values on a dyno pull with race-type automatics.... since the torque multiplication of a 5K flash-stall convertor makes the numbers meaningless with reference to measuring engine performance.... but yes, the rear wheel torque numbers are "big" 
Does wonders for "area under the curve"....
That's the fallacy with throwing around rear wheel HP numbers.... I lost 70rwHP with the TH400, and it didn't hurt the car's performance at all.
Does wonders for "area under the curve"....That's the fallacy with throwing around rear wheel HP numbers.... I lost 70rwHP with the TH400, and it didn't hurt the car's performance at all.
Last edited by Injuneer; 09-23-2004 at 01:17 PM.
09-23-2004, 06:25 PM
#18
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Join Date: Oct 2001
Posts: 784
Re: Injector Sizing/Duty Cycle for high HP Solid Roller 383
Originally Posted by Injuneer
My shop won't even print out the torque values on a dyno pull with race-type automatics.... since the torque multiplication of a 5K flash-stall convertor makes the numbers meaningless with reference to measuring engine performance.... but yes, the rear wheel torque numbers are "big" Does wonders for "area under the curve"....
That's the fallacy with throwing around rear wheel HP numbers.... I lost 70rwHP with the TH400, and it didn't hurt the car's performance at all.
Does wonders for "area under the curve"....That's the fallacy with throwing around rear wheel HP numbers.... I lost 70rwHP with the TH400, and it didn't hurt the car's performance at all.
09-24-2004, 02:29 PM
#19
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Re: Injector Sizing/Duty Cycle for high HP Solid Roller 383
Originally Posted by Turbo6
Fred, it is through a T56 and McLeod Street twin w/ steel flywheel.
If you look as the losses over a wide range of HP levels, you can sort of determine, using simultaneous equations, that the losses due to inertia are a "constant", and less than 20HP. The remainder of the loss is a "variable" that is roughly proportional to the torque being transmitted.... e.g. friction losses.
Keith at WS6.com has a "coast down" dyno test that confirms less than 20HP inertia losses.
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