Need to low CR on Sierra 2.0 DOHC turbo
19-08-2011, 02:49 PM
#1
Wahay!! I've lost my Virginity!!
Thread Starter
Need to low CR on Sierra 2.0 DOHC turbo
As stock it has 10.3:1 and I want to lower it in order to increase the boost pressure. Now It has around 9psi
I have low budget, so for now forged pistons aren't an option.
I think I have a few options (or combine them):
what do you think?
I have low budget, so for now forged pistons aren't an option.
I think I have a few options (or combine them):
- Use twice multilayer metal headgaskets or one wider than stock (stock 1.5mm)
- Find second hand pistons from another car that could be a direct fit in my rods (stock: bore=86mm stroke=86mm)
- remove material from combustion chambers
what do you think?
Last edited by AiToR51; 19-08-2011 at 05:03 PM.
19-08-2011, 03:06 PM
#2
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decompretion plate would work. you wouldent likly be able to remove enough material from the combustion chambers to lower it enough.
get a plate made up in the shape of the head gasket and use 2 plates either side of it
get a plate made up in the shape of the head gasket and use 2 plates either side of it
19-08-2011, 05:05 PM
#3
Wahay!! I've lost my Virginity!!
Thread Starter
Ok, thanks, I've sent a mail to Ferriday Engineering asking prices for a decomp plate
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