Page 1 of 2
Transmission losses for a scoob?
Posted: Fri Jun 29, 2007 7:51 pm
by mike-payne
Can anyone tell me what figure you would use as a calculation for flywheel horse power....
I know it won't be accurate, but it would be a way of telling how may car compares against others....
If it makes a difference, i'm running an STI V7 6 speed box and diff...
my figure would be at the hubs!
Posted: Fri Jun 29, 2007 7:53 pm
by duncan
multiply wheel figures by 1.18 is close
what did you get then Mike?
Posted: Fri Jun 29, 2007 7:55 pm
by frayz
If using Delta Dash mate, add 16%...
Or if youre like some tuners... add 25% ha ha ha
Posted: Fri Jun 29, 2007 7:58 pm
by mike-payne
frayz wrote:If using Delta Dash mate, add 16%...
Or if youre like some tuners... add 25% ha ha ha
It was a hub rolling road run.... not delta dash, but direct hub figure
Posted: Fri Jun 29, 2007 8:04 pm
by frayz
Ah i see, what was your hub figure then mate?
Posted: Fri Jun 29, 2007 8:08 pm
by mike-payne
frayz wrote:Ah i see, what was your hub figure then mate?
317.8 hp @ 6500
277.8 ib-ft @5240
any good? they seemed quite impressed
Posted: Fri Jun 29, 2007 8:10 pm
by frayz
Sounds pretty good, but numbers aside...
How does it feel for you as a driver?
Posted: Fri Jun 29, 2007 8:11 pm
by mike-payne
frayz wrote:Sounds pretty good, but numbers aside...
How does it feel for you as a driver?
drives great, with more to come i know.... a slight hesitation, which the curve seems to show.....
Posted: Fri Jun 29, 2007 8:14 pm
by frayz
Thats good,
On the road, my 303bhp ATW equated to 351bhp using 16% and 377bhp using 25%.
So yours producing some 15bhp more should be well up there.
In a little light classic.. thats pretty damm good in my book
Posted: Fri Jun 29, 2007 8:54 pm
by duncan
Mike's figures are hubs fugs so wont have tyre losses in there so I would expect that the 18% would be less.