Power loss through transmission.

[ARCHIVED THREAD] - Power loss through transmission.

Posted: 1/6/2006 4:59:43 AM EDT

Most say that the drivetrain has a 10-15% loss. I say it's a static # (ie: 15 or 20HP) that does not increase as HP is increased.

What say you?

Posted: 1/6/2006 5:25:28 AM EDT

[#1]

Not my field but I would WAG that it is NOT static. As terrain changes and drag due to speed changes, the friction on the drivetrain changes. Therefore the amount of loss changes, IMO.

Posted: 1/6/2006 5:36:26 AM EDT

[#2]

Quoted:
Not my field but I would WAG that it is NOT static. As terrain changes and drag due to speed changes, the friction on the drivetrain changes. Therefore the amount of loss changes, IMO.

Granted, but is the friction increase linear enough to be expressed as a consistent % of HP?

Posted: 1/6/2006 6:12:13 AM EDT

[#3]

Again, not my field but my Bosch Automotive Handbook indicates that it is an approximated fixed PERCENT of applied HP (understanding that it takes less HP to go 30MPH than 60). But it is NOT a fixed value of loss as your original question suggests.

Posted: 1/6/2006 7:30:17 AM EDT

[#4]

here is a nifty little article on the subject:

www.dynamometer.fsnet.co.uk/power-losses-flywheel-BHP.htm

Posted: 1/6/2006 8:35:26 AM EDT

[#5]

Good read!

Posted: 1/6/2006 8:46:14 AM EDT

[#6]

Quoted:
here is a nifty little article on the subject:

www.dynamometer.fsnet.co.uk/power-losses-flywheel-BHP.htm

Perfect! Thanks!

From the article: "...Remember that it is NEVER a percentage.

"

[ARCHIVED THREAD] - Power loss through transmission.

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