HG thickness on SR question - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Doluck · 01-05-2008, 03:58 PM

I love the apexi, it has done me way better than cometics.... (22psi daily on a .08x86mm)

I would stay with .08 or 1.mm x86mm unless your looking for 600+hp.

Problem with cometic is they sell 1 kinda gasket for sr20 its a 88.5mm bore for a fwd, its has about 17 diffrent part numbers for the diffrent car. If you call them they will tell you its the same gasket and it wont hurt anything. That BS.. the fwd is alittle diff. from the rwd. It can be used tho..
Anyway.. other issues are no fire ring, oil holes that dont line up. because the hg being to large pitting, erosion from detonation happens to the top of the cylinder walls, i have even see the walls cave in..

you can find about 1000000 threads on all of these issues on FA by Mazworx, and many others that mave built more motors than me.. ive aonly done about 8

01-05-2008, 03:58 PM	#12
Doluck Zilvia Member Join Date: Nov 2005 Location: Jacksonville, Fl. Age: 44 Posts: 182 Trader Rating: (0) Feedback Score: 0 reviews	I love the apexi, it has done me way better than cometics.... (22psi daily on a .08x86mm) I would stay with .08 or 1.mm x86mm unless your looking for 600+hp. Problem with cometic is they sell 1 kinda gasket for sr20 its a 88.5mm bore for a fwd, its has about 17 diffrent part numbers for the diffrent car. If you call them they will tell you its the same gasket and it wont hurt anything. That BS.. the fwd is alittle diff. from the rwd. It can be used tho.. Anyway.. other issues are no fire ring, oil holes that dont line up. because the hg being to large pitting, erosion from detonation happens to the top of the cylinder walls, i have even see the walls cave in.. you can find about 1000000 threads on all of these issues on FA by Mazworx, and many others that mave built more motors than me.. ive aonly done about 8