MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: RedRobin on July 22, 2009, 03:39:58 pm

Title: Rolling Road Information from JKM....
Post by: RedRobin on July 22, 2009, 03:39:58 pm

....

[Please move this if I've posted in inappropriate area]

Keith at JKM, whom we all know as a bit of a 'TechHead' and someone who is very dedicated and a genuine enthusiast, has written a very comprehensive piece.

The information at this link was initially put together so that people can understand the rolling road procedure in a little more detail, and try to make it clear about the errors that can creep in when performance testing cars on a rolling road.
 
JKM tried to keep this report on track to be just about Dyno Dynamics, however it has gone into more technical detail to get various points across.

Hopefully this information will give people more of an insight into the technical side of the rolling road testing procedure along with things to be aware of and look out for.

I personally think that this info may be helpful to all, regardless of which rolling roads we go on.

Linky : - Dyno Information from JKM.... (http://www.jkm.org.uk/performance/dynotesting.htm)

:happy2:

Title: Re: Rolling Road Information from JKM....
Post by: Hurdy on July 22, 2009, 03:52:31 pm

Excellent link that Robin, Just spent a good few minutes reading through it

0.72% accuracy over a 500bhp car/engine is a great indicator :happy2:

Title: Re: Rolling Road Information from JKM....
Post by: T88OMM on July 22, 2009, 05:07:10 pm

Thanks for that RR, great link and verrrrrryyyy interesting!  :happy2:

Title: Re: Rolling Road Information from JKM....
Post by: Phil Mcavity on July 22, 2009, 07:07:39 pm

 :congrats: :congrats: :congrats:

Great Read.


 :innocent:

Title: Re: Rolling Road Information from JKM....
Post by: Hurdy on July 22, 2009, 07:11:20 pm

Quote from: Phil Mcavity on July 22, 2009, 07:07:39 pm

:congrats: :congrats: :congrats:

Great Read.


 :innocent:

I thought you were on holiday :laugh:

Title: Re: Rolling Road Information from JKM....
Post by: Phil Mcavity on July 22, 2009, 07:13:24 pm

i was mate, but your lovelly weather up T'north was shall we say "p!ssed on" :ashamed:

Im home mate.

Title: Re: Rolling Road Information from JKM....
Post by: chungster on July 22, 2009, 08:50:26 pm

oooh looking forward to transmission losses bit....that is the one area where i think is the most contentious!!!

thanks JKM  :happy2:

Title: Re: Rolling Road Information from JKM....
Post by: Ryan_Evo on July 22, 2009, 09:12:31 pm

Load based dyno's vs inertia is another good one. I'm only interested in wheel figures anyway!