lsdweb
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| posted on 28/7/06 at 01:06 PM |
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Engine Dyno
Hi All
I've just spoken to the guy who I was hoping would do the rolling road session on my single seater for me. He's very reluctant to do it as
he doesn't think the car will be able to keep cool enough because of the position of the radiator.
He's suggested that I go to a dyno specialist instead (and recommended somebody in Exeter). I've never been to a dyno before so I'm
a bit confused on what to expect so, before I phone the guy, can anybody explain how it works - I understand the priniciples but it's the
practical bits I don't get! Like, if I take only the engine, injection, exhaust etc. will I have to make up a new temporary loom to wire in my
ECU?
Regards
Wyn
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02GF74
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| posted on 28/7/06 at 01:24 PM |
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hmmm, interesting; is getting some long hose and connecting to another radiator outside of the car? it is not like the cars is going to move very
far, well not if all goes to plan
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DarrenW
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| posted on 28/7/06 at 01:59 PM |
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Surely the rolling road people will be able to direct the fan in roughly the right location or use 2????? They could always keep an eye on the vitals
and abort if they get nervous about it.
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Hellfire
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| posted on 28/7/06 at 02:02 PM |
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Are you suggesting that you need to remove your engine and ancillaries to get the engine on a Dyno or am I reading it wrong? A Dyno is just an
abbreviation for dynamometer which is a device used to measure and adjust an engine’s horsepower and performance. There are numerous places that do
this for CEC’s but few that have the capability to adjust a bike engine in a car application.
The few that I know of are Holeshot Racing, TTS and PDQ. When we took ours to Holeshot, they placed a large fan in front of the nosecone to force feed
cool air whilst measuring and adjusting the performance via the Dynojet Power Commander. I assumed that this was standard practice, so I don’t suppose
it matters where your rad is, as long as they can get cool air into it to prevent your engine overheating.
Phil
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SeaBass
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| posted on 28/7/06 at 02:53 PM |
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A rolling road Dynamometer is used for comparative setup and tuning ideal for cars. Torque is measured at the wheels then drivetrain losses &
inefficiency is estimated and a calculation is done to provide an estimation of BHP and Torque for the engine. If you use the same Dyno every time or
if 'live' tuning and mapping is taking place fine. Beware that different Dynos provide different output figures due to the estimation in
calculations...
An engine Dynamometer is used for testing and engine development usually by engine builders and manufacturers. Readings are taken from the flywheel in
car applications - unknown for a bike??. Probably not what your looking for.
Cheers
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ned
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| posted on 28/7/06 at 03:10 PM |
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Philspeed (build a lot of sports2000 race engines - i believe they're in/near torquay) have an engine dyno, I know someone who's had their
engines on his over the years.
beware, I've got yellow skin
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davidwag
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| posted on 28/7/06 at 06:51 PM |
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hi,
I'm in Exeter but didn't know of anyone round here with a dyno.
Whats their name?
What type of engine are you running?
And what management?
Unless the dyno guy does that type of engine and that type of management system you will probably need to provide a wiring loom.
David
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lsdweb
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| posted on 28/7/06 at 08:57 PM |
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Hi All
I've spoken to the engine dyno chap - Rob 01769 STD - he can't do it either - he doesn't have the correct brackets and exhaust for
an R1 so it would be far too difficult / costly to set it all up.
He's suggested I go to Emerald which would have been my first choice only it's 450 miles away!
Regards
Wyn
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stevebubs
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| posted on 28/7/06 at 10:33 PM |
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Have a chat with the guys in Oxford recommended by Emerald - a bit closer...can't remember their name off the top of my head.
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