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Home > General Chat > Group A head gasket, what is it?

Sam

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Oxford

20th Jul, 2008 at 06:19:35pm

Being Relitivly new to turboing minis im currently makeing choices at to my build.

one of the terms ive heard thrown about is the group a head gasket.

although ive never seen one of these gaskets i can only assume that its got a deeper fire ring to stop cross chamber fireing caused by the higher dynamic compression ratio while on boost.

is that somewhere near the truth or am i being clueless again?

thanks

Sam

btw i did have use the search function.

Edited by Sam on 20th Jul, 2008.

On 19th Feb, 2011 Miniwilliams said:
OMG Robert that's a big one


wil_h

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Member #: 123
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Betwix Harrogate and York

20th Jul, 2008 at 06:38:34pm

You're about right.

but they limit the amount you can bore the engine and the BK450 head gasket has proven to be able to withstand more than enough.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph



On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.


Sam

1391 Posts
Member #: 1686
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Oxford

20th Jul, 2008 at 06:58:55pm

So its an un needed precaution, and a 450 is alot cheaper.

On 19th Feb, 2011 Miniwilliams said:
OMG Robert that's a big one


Turbo Phil

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My sister is so fit I won't show anyone her picture

Lake District

20th Jul, 2008 at 08:44:45pm

Pretty much OTT, as Wil says the BK450 is more than man enough.

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