Using thicker head gaskets to lower compression on a stock internal??
10-05-2005, 07:18 AM
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Using thicker head gaskets to lower compression on a stock internal??
Will it work? 
I've seen other vehicles lower their compression using thicker head gaskets without building the internal. Will it work on the VQ? By using Cometic Gaskets. Havent heard anyone done it yet so was wondering.
I've seen other vehicles lower their compression using thicker head gaskets without building the internal. Will it work on the VQ? By using Cometic Gaskets. Havent heard anyone done it yet so was wondering.
10-05-2005, 08:59 AM
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Originally Posted by tonio
its been discussed in one of the threads, I think the final sentiment was that its a band aid remedy and not truly addressing the problem
If you try it let us know how it goes.
10-05-2005, 09:40 AM
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I think going with a thicker gasket would throw off the variable timing on the vq....same as if you shaved the head for more compression. There is very little play room.
10-05-2005, 09:46 AM
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A thicker head hasket will reduce the SCR ; however, it negatively effects the chamber's squish volume as desingned into the modern combustion chamber. Minimal squish volume provides superior knock tolerance. It is actually possible to reduce knock tolerance even when reducing SCR, if adequate squish is not accounted for. The recommended method for SCR reduction is are shallow dished pistons.
If you want more info on the topic , have a look in the Corkey Bell book , "Maximum Boost",
If you want more info on the topic , have a look in the Corkey Bell book , "Maximum Boost",
10-05-2005, 10:09 PM
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Originally Posted by g356gear
...same as if you shaved the head for more compression. There is very little play room.
Guess theres no cheap way of playing with boost then.
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