H22A7 decompression plate anyone ran one ?

louckie · Post by **louckie** » Tue Apr 02, 2019 6:38 pm

As above anyone know how to calculate lower compression ratio with a thicker head gasket?

And if so what thickness plate Would I need

Anyone ran a doubled up oem gasket bla bla

Ermmmm asking for a mate

Post by **Drax** » Tue Apr 02, 2019 7:30 pm

Surely doubling up on headgaskets will lower the compression... Why would you want to do that?

louckie · Post by **louckie** » Tue Apr 02, 2019 8:44 pm

Drax wrote: ↑
Tue Apr 02, 2019 7:30 pm
Surely doubling up on headgaskets will lower the compression... Why would you want to do that?

11:1 compression ratio is no good for boost

Post by **Drax** » Tue Apr 02, 2019 10:25 pm

louckie wrote: ↑
Tue Apr 02, 2019 8:44 pm

Drax wrote: ↑
Tue Apr 02, 2019 7:30 pm
Surely doubling up on headgaskets will lower the compression... Why would you want to do that?
11:1 compression ratio is no good for boost

gotcha! Makes sense now

Post by **RattyMcClelland** » Tue Apr 02, 2019 11:10 pm

11.1 is excellent for boost, well around 10.75 I think I'm at with the reworked head and thicker gasket. 11:1 arias pistons. Rich at paw did the calculations so no help to you.

louckie · Post by **louckie** » Wed Apr 03, 2019 8:35 pm

RattyMcClelland wrote: ↑
Tue Apr 02, 2019 11:10 pm
11.1 is excellent for boost, well around 10.75 I think I'm at with the reworked head and thicker gasket. 11:1 arias pistons. Rich at paw didn't he calculations so no help to you.

My mate said thanks