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Lick me - i'm chocolate!!
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Discussion Starter #1
I have a Tomei metal head gasket, which i bought in error. it's 1.5mm thick and 88mm bore. question is can i still use it on the standard 86mm bore?

:cheers:
 

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the more thick the gasket is,the more compression!!
if you want to play safe boost 0.9 -1.1 better used 1.1mm or 1.2 mm
if 1.3 mm need ECU (Stand or Piggy) cos SAFC cant controlled it!!
eventhough can controlled cant stand long,leaking will occur
but MORE THICK MORE BOOST CAN APPLY!!
Just sharing my experience..if my info wrong theres someone who can correct it
different tuner diffrent knowledge;)
 

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Autobahn Burner
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1,223 Posts
the more thick the gasket is,the more compression!!
if you want to play safe boost 0.9 -1.1 better used 1.1mm or 1.2 mm
if 1.3 mm need ECU (Stand or Piggy) cos SAFC cant controlled it!!
eventhough can controlled cant stand long,leaking will occur
but MORE THICK MORE BOOST CAN APPLY!!
Just sharing my experience..if my info wrong theres someone who can correct it
different tuner diffrent knowledge;)
Um , your translation software needs some work:crazy: but
The thicker the HG the LOWER the compression, so you can run more boost, and push back the onset of det. you will lose some power off boost though if you lower it too much.
 

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Lick me - i'm chocolate!!
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1,767 Posts
Discussion Starter #6
its not the thickness i am concerned about its the bore? standard is 86, ive got 88mm. would this be ok..
 

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Autobahn Burner
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1,223 Posts
its not the thickness i am concerned about its the bore? standard is 86, ive got 88mm. would this be ok..
You can use any head gasket you want, as long as it is bigger than the bore, Only If you tried to use an 87mm bore size hg with 88mm bores, would it fail in short order. It is recommended that your hg bore size be a bit bigger than the bore. The stock hg has 87mm bores, i measured it when I took my motor apart, my cometic 87mm is actually 87.5
 
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