Mini Twin Police!!

[andrewsmith]

you implying the testing maps YC?

[yorkie_chris]

Huh?

All I am saying is there are ways to make dynos read big numbers and small ones and if you wanted to be a proper cheat you would think of a way.

[andrewsmith]

I was told that most dyno's (i think it was Dynojet units) have 3 different condition modes which all give different results.

[yorkie_chris]

Yeah.

Basically a dyno measures acceleration of a big bit of metal*. This is a dead simple calculation to determine the amount of power. It's absolute, no buggering about, physics.

Then you make it complicated by getting correction factors involved to try and guess what difference certain atmospheric conditions make to the engine, the idea being that the same engine will give the same numbers at different conditions. It doesn't work, all a dyno is good for is vague comparisons or precise back-to-back runs.


*An inertial one anyway, a brake one is even simpler in simple terms

Originally Posted by toot

What happens if someone reads 73bhp on the dyno Coxxy ?

Good question. Firstly the bemsee dyno does under read against other dynos by approx 5%. Secondly, they test engines immediately after a race when they are very hot so would tend to be lower anyway. Most riders are more than happy to get 70 ish in these conditions. If it were to read over at 73 then its illegal and the rider would be disqualified according to the rules. In practice they do issue advisories for minor transgressions, against any rule, and then disqualify if no action is taken. Of course there is always the protest rule for riders who are not happy with these common sense arrangements?

This set up is probably the best you could ask for in the situation and judging by the performance of the front riding bikes there is nothing between them on power in a straight line. It all seems even and fair at Bemsee MRO.

And this is done after every race ?

Has anyone ever been over the limit ?

no, not every race but usually twice in a weekend of 4 races

toot give me a ring pal, i wana pick ya brains, i'll PM u me number, ta

Answered. But you can't put a head back to standard once it's ported.

The only heed ported here is the one on me shoulders, tune the man not the machine !