PISTON SURFACE SHAPE
#1
PISTON SURFACE SHAPE
Hello,
I'm rebuilding an STi 03 engine in Greece capable for running 450+BHP, and after having problem finding bolt on forged pistons with the same shape and keeping compression ratio arround 8:1, i'm planning to use the JE forged pistons but with the WRX shape.
The question i have is, that even if i succeed to achieve the 8:1 compression ratio with gaskets etc, will the totally different shape of piston work with the VVT and the STi heads?
Or will i have problem with the combustion chamber shape?
Cheers
Christos
I'm rebuilding an STi 03 engine in Greece capable for running 450+BHP, and after having problem finding bolt on forged pistons with the same shape and keeping compression ratio arround 8:1, i'm planning to use the JE forged pistons but with the WRX shape.
The question i have is, that even if i succeed to achieve the 8:1 compression ratio with gaskets etc, will the totally different shape of piston work with the VVT and the STi heads?
Or will i have problem with the combustion chamber shape?
Cheers
Christos
#2
Where are you all the engine experts?? :-)
No ideas at all?
I have calculated also the compression ratio, using the WRX std forged Pistons with the STi heads and 0,9mm gasket.
Arround 7,9:1 was the result.
Has anybody tried this and can confirm it?
Thanks in advance,
Christos
No ideas at all?
I have calculated also the compression ratio, using the WRX std forged Pistons with the STi heads and 0,9mm gasket.
Arround 7,9:1 was the result.
Has anybody tried this and can confirm it?
Thanks in advance,
Christos
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Flat4x4-again
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29 September 2015 06:32 PM