Guest woody650 Posted September 23, 2004 Share Posted September 23, 2004 I have a V11 Sport that with a PCIII and a custom dyno-tuned map than ran perfectly until I had the engine cases replaced. Now it detonates badly at any RPM above 4k when more than 1/4 throttle is applied. I have verified that the custom map is still loaded. Any idea why this detonation has arisen? I'm considering having the dyno-tune performed again to remap the "new" engine setup...is this the best/only solution or might there be other causes as well? Thanks for any feedback, Colin Link to comment Share on other sites More sharing options...
Skeeve Posted September 23, 2004 Share Posted September 23, 2004 I have a V11 Sport that with a PCIII and a custom dyno-tuned map than ran perfectly until I had the engine cases replaced. Now it detonates badly at any RPM above 4k when more than 1/4 throttle is applied. I have verified that the custom map is still loaded. Any idea why this detonation has arisen? [snip] Someone left off the base gaskets when moving stuff to the new cases, raising the piston relative to cylinders & increasing c.r? The new cases were machined improperly, changing the deck height? My bet is on the base gasket theory, personally... Link to comment Share on other sites More sharing options...
Guest rrbasso Posted September 23, 2004 Share Posted September 23, 2004 Detonation, is really making me mad, my bike is stock and ran great till two weeks ago and the terrible noise started, sorry to here about yours Link to comment Share on other sites More sharing options...
Guest davidb Posted September 25, 2004 Share Posted September 25, 2004 Detonation, is really making me mad, my bike is stock and ran great till two weeks ago and the terrible noise started, sorry to here about yours 34145[/snapback] Both my r1100s and V11 have been pinging for about 3 weeks. I added some octane booster and it helped a little. I think maybe it is the gas. Link to comment Share on other sites More sharing options...
Guest rrbasso Posted September 26, 2004 Share Posted September 26, 2004 I will try it tomarrow ! I know our CA gas is bad , that would be great if if a octang bost helps, thanks Tony Link to comment Share on other sites More sharing options...
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