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Morcs
29th May 2009, 17:24
Anyone know how red barons dyno compares against other dynos as far as readings go?

I had the Fazer do a run today to compare with a guy in oz - same bike, same pipes, same cat elim, no db killas, came CO settings plus mine has a modded airbox.

His peak power on a dynojet brand dyno was 95hp, whereas mine was 85hp!? (not sure of red barons brand)

My seat of the pants dyno says it has more than 85...

cheers

cs363
29th May 2009, 18:48
You can't compare dyno's, end of story. Way too may variables involved as any decent dyno operator worth their salt will tell you, especially with a chassis dyno.
Best thing is to stick with one dyno and operator and use that to measure the differences with modifications etc., that you make.

steve_t
29th May 2009, 19:02
+1
A dyno is only really useful to compare bikes or a bike you're modding. You can't accurately compare HP of bikes measured with different dynos. Also heaps of factors can affect the reading like ambient temperature etc

puddy
29th May 2009, 19:35
You can't compare dyno's, end of story. Way too may variables involved as any decent dyno operator worth their salt will tell you, especially with a chassis dyno.
Best thing is to stick with one dyno and operator and use that to measure the differences with modifications etc., that you make.
Take your bike to Oz or bring his bike over here. Problem solved!:laugh:

cs363
29th May 2009, 19:41
Take your bike to Oz or bring his bike over here. Problem solved!:laugh:

Even though you're taking the piss, even that wouldn't solve the issue as steve_t pointed out, things like ambient temperature, how tight the bike is tied down onto the roller and so on can vary the readings.

Kiwi Graham
29th May 2009, 20:09
Agree with all the above.
Morcs just worry about the gains you make on the dyno and operator of your choice. You cant compare with different dyno's, seat of the pants is often a good judge as well :niceone:

peasea
30th May 2009, 00:13
You can't compare dyno's, end of story. Way too may variables involved as any decent dyno operator worth their salt will tell you, especially with a chassis dyno.
Best thing is to stick with one dyno and operator and use that to measure the differences with modifications etc., that you make.

Absolutely. Regardless of the application you can only measure one dyno's readings against it's own and in similar atmospheric conditions. (Unless a totally controlled atmosphere is available.)

To say "I got this figure on Joe's dyno" means nothing when compared to "I got this figure on Jimmy's dyno". You need to be on the same dyno if you want to get bragging rights or anything so mundane as solid results.

People who are serious about making power tend to be the type to see things through, not jump from one dyno operator to another. (Unless incompetence rears its ugly head.) My advice to anyone attempting to get some real power out of their machine is to talk to people with similar machinery. Find a reputable dyno operator and take some advice. If you're keen, they will be too; performance is addictive and can build friendships.

However, BOT, stick with one dyno and don't be pissed of when things go bang.

That's the price of performance, get used to it.