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Engine knocking noise in my 4G93 Mivec
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<blockquote data-quote="xtremeleo" data-source="post: 4437427" data-attributes="member: 18941"><p>first of all, if u r using a 92 original block, and mivec's complete internals, ur compression ratio willn ot rise to 14. weve tested with a much higher compression pistons and the max we got was around 13.5, its either ur mivec head had been skimmed beyond limits or sumone has been telling u bs sir. iam sorry for the blunt statement.</p><p></p><p>lets get down to business, pinging / preignition / knocking / or whatever u want to call it, IS THE NUMBER ONE ENGINE KILLER AND MUST BE AVOIDED AT ALL COST. fyi, a 3 bar of boost wudnt kill an engine as fast as detonation, so dat sound u r hearing IS VERY DANGEROUS. on this part, sumone is really telling u a big lie sir. when he tell u dat d knocking sound sourcing from preignition is not dangerous, please, please, please ignore it. </p><p></p><p>does the sound occur prior to the tuning process? i believe its because ur tuning is way off, but need to reconfirm on dis. please, pm me for details sir. i suggest u dont accelerate the engine hard sir. what fuel grade are u using btw? we have a b16 running on 95, no big when properly tune. 170hp on the dyno dynamics on std block</p></blockquote><p></p>
[QUOTE="xtremeleo, post: 4437427, member: 18941"] first of all, if u r using a 92 original block, and mivec's complete internals, ur compression ratio willn ot rise to 14. weve tested with a much higher compression pistons and the max we got was around 13.5, its either ur mivec head had been skimmed beyond limits or sumone has been telling u bs sir. iam sorry for the blunt statement. lets get down to business, pinging / preignition / knocking / or whatever u want to call it, IS THE NUMBER ONE ENGINE KILLER AND MUST BE AVOIDED AT ALL COST. fyi, a 3 bar of boost wudnt kill an engine as fast as detonation, so dat sound u r hearing IS VERY DANGEROUS. on this part, sumone is really telling u a big lie sir. when he tell u dat d knocking sound sourcing from preignition is not dangerous, please, please, please ignore it. does the sound occur prior to the tuning process? i believe its because ur tuning is way off, but need to reconfirm on dis. please, pm me for details sir. i suggest u dont accelerate the engine hard sir. what fuel grade are u using btw? we have a b16 running on 95, no big when properly tune. 170hp on the dyno dynamics on std block [/QUOTE]
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Engine knocking noise in my 4G93 Mivec