| Author | Topic |
|---|
Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
|
|
Re: Drivetrain Loss
|
Tue, 05 August 2003 15:03
 
|
 |
Toymans on the money here, but gotta add a bit more dribble.
i remember reading in a few different books (like carroll smith and philip smith) that drivetrain loss is not proportional to engine power. they stated that the drivetrian loss is just that, drivetrain loss, and for a specific box and diff, wether you put 50kw or 500kw thru it, the actual drivetrain loss will not increase by that much. with reasoning, the oil friction and bearing loss will remain pretty constant, and the only thing that increases with power is the geartooth to tooth friction.
if you go by the 30% rule, that means that V8 supercars are losing about 180hp thru their boxes, i can't imagine how a gearbox and diff could absorb 180hp worth of energy and not melt!
so basically, you can't just take a percentage and mutiply by engine power as it's not linear. as the members of the smart party said, the only way to tell is run back to back engine and chassis dyno tests (and even do both at half throttle and see if the loss is linear  )
dribble dribble..... 
Cya, Stewart
|
|
|
| | Subject | Poster | Date |
|---|
 |
Drivetrain Loss
|
-Mark- | Mon, 04 August 2003 15:30 |
|
Re: Drivetrain Loss
|
rob_RA40 | Mon, 04 August 2003 22:16 |
|
Re: Drivetrain Loss
|
Jason | Mon, 04 August 2003 22:30 |
|
Re: Drivetrain Loss
|
Shteeve | Mon, 04 August 2003 23:12 |
|
Re: Drivetrain Loss
|
7M-Brisbane | Mon, 04 August 2003 23:28 |
|
Re: Drivetrain Loss
|
gold28 | Tue, 05 August 2003 00:27 |
|
Re: Drivetrain Loss
|
-Mark- | Tue, 05 August 2003 01:40 |
|
Re: Drivetrain Loss
|
Celia-Sue | Tue, 05 August 2003 05:48 |
|
Re: Drivetrain Loss
|
gold28 | Tue, 05 August 2003 06:39 |
|
Re: Drivetrain Loss
|
| Tue, 05 August 2003 07:24 |
|
Re: Drivetrain Loss
|
draven | Tue, 05 August 2003 07:56 |
|
Re: Drivetrain Loss
|
YelloRolla | Tue, 05 August 2003 08:05 |
|
Re: Drivetrain Loss
|
thetoyman75 | Tue, 05 August 2003 13:09 |
|
Re: Drivetrain Loss
|
oldcorollas | Tue, 05 August 2003 15:03 |
|
Re: Drivetrain Loss
|
fj20 | Wed, 06 August 2003 00:15 |
