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Thicker Head Gaskets with Higher Boost levels Questions

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Old 08-19-2003, 07:30 PM
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Default Thicker Head Gaskets with Higher Boost levels Questions

I am looking for advice on what sized head gasket I should put on since I will be trying to reach higher boost levels. I hear people a using 7.5-8 lbs without intercoolers or aftercoolers. I am putting on a Comptech super charger aftercooler and will be shooting for 9-10 lbs of boost. I am thinking about putting on a 1.5mm thick gasket. I read about someone else was turbo boosting 8 plus and and using a 3mm thick head gasket. I am not sure where people are getting high quality head gaskets and what thickness is appropriate? I hear that by lowering the compresstion will comprimise lowend torque to gain high end boost and power. What is the hot setup?
Old 08-19-2003, 09:16 PM
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If you use a thicker head gasket I believe you will make the motor weaker. Because it make the cylinder quench area weaker. Also a thicker head gasket might give it more area for detonation which might blow out. Correct me if I'm wrong.
Old 08-20-2003, 07:09 AM
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A thicker head gasket to lower compression has been experimented with a lot by lots of people. About 90% of the time, it fails and the head gasket leaks. It is entirely possible, but not very probable. Don't try it unless you have years of motor building experience with a bonafide race team. It's not worth it.
Old 08-20-2003, 10:08 AM
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The gasket is the weakest link in the seal between the cylinder head and the block. Why make that space bigger? You are begging for a failure.
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