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Old 02-16-2017, 02:37 PM   #1
RustyRod
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Drives: Golf GTD DSG
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Remap Resuts Post

Just got my GTD DSG Remapped.

Stock: 188HP
Remaped: 219HP

Whats yours?
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Old 02-17-2017, 01:43 AM   #2
rafa
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Never got mine dynoed.
How did they get flywheel hp?
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Old 02-17-2017, 03:52 PM   #3
Ian@MAPerformance
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Calculated percentage loss for the drive train.

Quote:
Originally Posted by rafa View Post
Never got mine dynoed.
How did they get flywheel hp?
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Old 02-19-2017, 11:08 PM   #4
The Fed
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HP is extrapolated from torque. It's not possible to measure HP, only torque.

I never heard of a calculation based solely on drivetrain loss. What's the formula?

I know you can use HP = (TQ*RPM)/5250 but I'm not sure you can use it on diesels.
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(Mostly) Posted by Josh/AWE. Flapper valves are open at idle, close after 1100 RPM during part throttle. Full throttle 1st-4th gear the valves open until throttle let off. 4th gear, 1500 RPM to full throttle closed, closed until 3500 RPM, then open until lift off throttle.
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Old 02-20-2017, 12:22 AM   #5
MeltedSolid
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Quote:
Originally Posted by The Fed View Post
HP is extrapolated from torque. It's not possible to measure HP, only torque.

I never heard of a calculation based solely on drivetrain loss. What's the formula?

I know you can use HP = (TQ*RPM)/5250 but I'm not sure you can use it on diesels.
I believe the drivetrain loss is calculated based on some cleverness with measuring the engine braking, but can also be estimated if the engine is dyno'd separately from the car. I believe it typically increases linearly with the RPM.

Also, the torque to power conversion is fundamental to physics and has nothing to do with the type of motor, so it applies here. The only thing that might change is if you use different units (such as kW and Nm) then the 5250 will be different.
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