Phase 1 heads fitted to phase 2 short motor
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Phase 1 heads fitted to phase 2 short motor
Has anyone one fitted phase 1 heads to a phase 2 short engine (ie 2.0 litre)
Which type of headgaskets did you use?
Which type of headgaskets did you use?
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My car does have a mappable ecu. Was hoping to map it when with all the mods are fitted (fmic etc) which will be more or less the same time when or if I can use this new short block.
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Ok, If you remap straight away, or drop some ignition timing out as a temporary measure, I would use the thinner steel gaskets. They will up the compression a little, but the thicker STi 3/4 gaskets will drop the compression too much.
Mark.
Mark.
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Thanks Mark.
I was advised to use 1.6mm triple layer gaskets? But I am no expert in terms of compression ratio. Ive just got a very basic understanding of it.
With the thinner type (is that 0.8mm?) what sort of cr will that give?
How much is too much when using the sti 3/4 gasket and what thickness are they?
Thanks Ticky
I was advised to use 1.6mm triple layer gaskets? But I am no expert in terms of compression ratio. Ive just got a very basic understanding of it.
With the thinner type (is that 0.8mm?) what sort of cr will that give?
How much is too much when using the sti 3/4 gasket and what thickness are they?
Thanks Ticky
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Thin is about .6mm. 1.6mm is the STi3/4.
Generally, the thick gasket will drop CR into the 7's, and the thin mid 8's.
Personally I would rather run higher, than lower compression. Better off boost response, and ptontially better off boost fuel economy.
Mark.
Mark.
Generally, the thick gasket will drop CR into the 7's, and the thin mid 8's.
Personally I would rather run higher, than lower compression. Better off boost response, and ptontially better off boost fuel economy.
Mark.
Mark.
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