lowering comp. for boost. questions....

nitrousjunky · Post by **nitrousjunky** » Wed Jun 13, 2007 11:51 pm

Where to get a fatter head gasket?

cometic makes one for .51 but bigger?

I need a fat head gasket to lower the compression. right now i have srp 10.7 pistons and the head is shaved .24. I am guessing the compression should be 11-11.2 to 1. i would like to get under 10.5 and do 5-8lbs of boost. i know it is high but if done right is should be a good setup!

Also I have the crower 404 cams and i have dont know if i can just adjust my camgears to get more less cam overlap for boost, or get new ones???

bildo16 · Post by **bildo16** » Thu Jun 14, 2007 12:38 am

since you are burning so much oil already, i would get that aken care of before you put boost to it. while youre down there, why not swap those slugs out with new ones.

Post by **budget_crx** » Wed Jun 20, 2007 5:43 am

HKS makes gaskets in different thicknesses. what engine is this for?

ImAJandILikeToSuckMenOffForMoney · Wed Jun 20, 2007 5:48 am

budget_crx;50277 wrote:HKS makes gaskets in different thicknesses. what engine is this for?

B18A or B18B

mike93hatch · Post by **mike93hatch** » Wed Jun 20, 2007 8:48 pm

just get different/better pistons...jesus.

niket · Post by **niket** » Mon Jul 16, 2007 2:41 am

I'd suggest going for lower compression pistons. Changing HG thickness seems to be a fine tuning tool only, not for changing CR drastically. You're right to worry about the cam overlap. An aggressive NA cam will not be beneficial with a turbo. Not sure if you can fix that with camgears.

.Smitty. · Post by **.Smitty.** » Mon Jul 16, 2007 5:20 am

niket;55101 wrote:I'd suggest going for lower compression pistons. Changing HG thickness seems to be a fine tuning tool only, not for changing CR drastically. You're right to worry about the cam overlap. An aggressive NA cam will not be beneficial with a turbo. Not sure if you can fix that with camgears.

Hit the nail on the head. Don't cheap out on your build, you might regret it in the end.