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compression question
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<blockquote data-quote="alvin24" data-source="post: 294716" data-attributes="member: 63"><p>if u dyno... i can almost confirm with u ur hp drops... from 0.8 paper gasket, u insert 1.5 metal gasket... u have any idea how much compression is lost ar? Since u mentioned 'stock putra'... i'm assuming its n/a... everyone goes for higher compression by either skimming the head or changing to thinner metal gaskets.... which fool suggested to you to change 1.5mm gasket lar?!?! (you sure it isn't 0.5mm instead ar?)</p><p></p><p>Turbo cars lower their compression in order to be able to boost higher... else there will be detonation. By doing so... their low end will be sacrificed for the sake of boosting higher at the high end.</p><p></p><p>Its going to be costly for u to change back to normal gasket to get back ur normal compression... think the workmanship charges to open up the head itself will be around 450 bucks plus minus... not to mention the purchasing of gaskets again.</p><p></p><p>I think now 4G91 also can tapau u ler... no need to even compare to other 4G93s.</p></blockquote><p></p>
[QUOTE="alvin24, post: 294716, member: 63"] if u dyno... i can almost confirm with u ur hp drops... from 0.8 paper gasket, u insert 1.5 metal gasket... u have any idea how much compression is lost ar? Since u mentioned 'stock putra'... i'm assuming its n/a... everyone goes for higher compression by either skimming the head or changing to thinner metal gaskets.... which fool suggested to you to change 1.5mm gasket lar?!?! (you sure it isn't 0.5mm instead ar?) Turbo cars lower their compression in order to be able to boost higher... else there will be detonation. By doing so... their low end will be sacrificed for the sake of boosting higher at the high end. Its going to be costly for u to change back to normal gasket to get back ur normal compression... think the workmanship charges to open up the head itself will be around 450 bucks plus minus... not to mention the purchasing of gaskets again. I think now 4G91 also can tapau u ler... no need to even compare to other 4G93s. [/QUOTE]
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