A stock 999R has a certain map in its ECU which sets the fuel delivery parameters.
Now remove the stock pistons and add a pair or pistal high compression ones.
All other variables held equal, will the engine want a richer map? I have a DP ECU for a 57mm system, then was given a Dynojet map to try for my specific bike (pistal hc pistons, gasflowed heads, corsa air runners, 57mm Akro prototype race exhaust) while I wait for a Nemesis ECU. To my utter amazement the sheet of numbers were almost all negative (ie leaner than the DP ECU seetings). Does this make sense?
The bike still does not run as fast as I thought it would (I can run neck and neck straight line with a stock 09 GSXR 1000 and I outweight the Suzuki pilot by 20 lbs).
Next question, I have read that high comp engines want a cooler spark plug. I run the stock NGK race plugs without the bridge to the electrode. I cannot "feel" any detonation from having too hot a plug, but I am not sure I would until it was too late.
Anyone have any guidance on plug heat range for a high comp testastretta engine?
Now remove the stock pistons and add a pair or pistal high compression ones.
All other variables held equal, will the engine want a richer map? I have a DP ECU for a 57mm system, then was given a Dynojet map to try for my specific bike (pistal hc pistons, gasflowed heads, corsa air runners, 57mm Akro prototype race exhaust) while I wait for a Nemesis ECU. To my utter amazement the sheet of numbers were almost all negative (ie leaner than the DP ECU seetings). Does this make sense?
The bike still does not run as fast as I thought it would (I can run neck and neck straight line with a stock 09 GSXR 1000 and I outweight the Suzuki pilot by 20 lbs).
Next question, I have read that high comp engines want a cooler spark plug. I run the stock NGK race plugs without the bridge to the electrode. I cannot "feel" any detonation from having too hot a plug, but I am not sure I would until it was too late.
Anyone have any guidance on plug heat range for a high comp testastretta engine?