2000 E46 323 - supercharge? lower compresion?

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  1. 2000 E46 323 - supercharge? lower compresion? 
    #1
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    On a vauxhall forum (migweb) they turbo cars all the time, especially the redtops! When doing so they some times use double steel headgaskets to lower the compresion so that they can up the boost! I would imagine that it is the same principle for the supercharger?
    So if you have a 323 and a 325, both 2.5s but the 323 has 74/84 and the 325 has 84/84 (roughly i think) then would that meen the 323 has a lower compresion than the 325, and if so, could you get easier power out of the 323, or am i talking rubish.
     
     

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    A multilayer headgasket won't change the compression ratio greatly, but they do make them for the M52tu/M54 engines, see here, http://www.vacmotorsports.com/catalo...askets-mls.htm

    As for compression ratios of the 2 engines, not sure, will have a look into it.
     
     

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    Hello Ronnie,

    Forgive my ignorance and Uber may mean something else.

    However, in a copy of Redline a tuning company called Uber is featured. A friend of mine in Germany who runs a modified Z3 has asked me if this company is British or US or in fact some other country.

    Can you help with any information such as Country origin, address or even telphone number?

    Thanks,
    Peter, also from DorZ3t.
    Last edited by Wessex; 07-11-2009 at 06:59. Reason: Spelling mistake in modified
     
     

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    #4
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    my freindis on that forum and his astra has double head gaskets!! you are correct!!!
    he son his 3rd hg failure of this year!! and 2nd head skim!!! thats what people call"learning to run before you can walk"
     
     

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