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Understanding Compression Ratio Understanding Compression Ratio
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Old 02-07-2012, 04:15 PM   #21 (permalink)
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Originally Posted by Honda_CBF View Post
Yeah, plz dont stop here guys & gurus, keep pouring your knowledge..
My small push start to this ailing thread:-
what to do to prevent detonation/pinging (caused due to raising CR) when high octain petrol or octain boosters are not available... Does mixing 2t with petrol in small quantity help say 0.5ml or 1ml to a liter?? I guess 2t in petrol will bring down the temperature in combustion chamber, hence preventing pinging?? Am i right here??
2t oil in a 4t engine will most likely foul your spark plug soon.

Preventing knocking / pinging... Probably stuff like:
Jetting the carb such that it always runs rich, but there's limits to how rich you can run, plus it will kill your mileage.
Retarding ignition timing till the knocking stops, but that will likely cause a drop in power.

All in all, nothing you can do on the move.
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Old 02-07-2012, 09:10 PM   #22 (permalink)
Still learning the art of bike'in..
 
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2t oil in a 4t engine will most likely foul your spark plug soon.
but I've used 2t in hunk, ratio was 0.5ml to a liter. It didn't caused any problem, electrodes turned super black but no fouling observed.
Did it to counter overheating... We were on highway with temperature hovering around 45'c. And oem 10w30 oil did no good to us.
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Old 02-07-2012, 09:51 PM   #23 (permalink)
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lets not stop here, somebody plz put up definitions of static & dynamic compressions.
Kennedys DynoTune- Dynamic Compression Ratio Explained
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