The Place

ianw wrote:Tony, this thread is going to rumble on into the New Year.
Michel,the figures & stats that you have quoted that have come from Rixyracing contradict all known science of comparisons of Petrol verses Alcohol, in this case Methanol.
Start with Air/Fuel ratio by weight, the ideal ratio for Petrol is 14.7 to 1, the ideal ratio for Methanol is 6.44 to 1, therefore,
you have to get more that double the volume of methanol into the combustion area to achieve any worthwhile comparison of Petrol verses Methanol. So using the same size main jet is a big no no.
The other bug which comes into play is compression ratio, if a Petrol engine is running a compression ratio of 10 to 1, then a Methanol engine will need to run a compression ratio of 13 to 1, plus double the volume of fuel to achieve a greater power output than the Petrol engine.
Typically, using a TEST 500cc engine, the engine run on Petrol with a 10 to 1 compression ratio with an Air/ Fuel ratio of 14.7 to 1
will produce roughly 49 BHP, whereas the TEST engine run on Methanol with a compression ratio 13 to 1 with an Air/Fuel of 6.44 to 1 ( double that of Petrol ) will produce roughly 54 BHP. These figures are from a TEST ENGINE, not any specific engine.
The source of this information is RICARDO, please tell me Michel that Rixyracing have heard of Ricardo?

As I said earlier, the proof of the pudding will be when someone from joe public sticks one of these engines on a Dyno & gets a reliable power output figure. Till then it's all conjecture especially the way that you are trying to justify Konnys claimed power output.
Good luck to Konny & anyone who puts their engines in Sidecars or Solo's, personally I'd give then Special Dispensation to race at Classic Meetings because if I were a rider within Classic Races I wouldn't be intimidated by their Power output claims, they will be quick.