im doing an ls vtec conversion next week, it will be turbo. im wondering if a thicker head gasket would drop my compression and by how much with this setup.
also where can i find a thicker gasket, how much boost on stock internals, and would they be torque different?. any help would bee sweet


set up:
B16 soon LSV
t3/t4 turbo
RC 440's
crom chip p28
VAFC for fine tuning

 

Generally adjusting compression by using different sizes of head gaskets is not the best decision. This is beacuse it changes your quench distance (the distance btw the top of the slug and the bottom of the head). Proper quench is used to create a cooling effect from the fuel on the chamber and piston. When quench is incorrect, you can have less compression and have more propensity to spark knock. From my experience building chevy motors quench distance is usually about .044" Find out what the proper distance is for this motor, and stick to it!

K

 

i'm running a .074" cometic HG on a B16. made 330whp @ 14psi. i say go for it.

 

Why would you tune your ecu and then "tune" again with a vafc. Tuned ecu = best, vafc is somewhere down near the bottom of goodness. Don't mess up a good tune with vafc,

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SVOboy &raquo;</TD></TR><TR><TD CLASS="quote">Why would you tune your ecu and then "tune" again with a vafc. Tuned ecu = best, vafc is somewhere down near the bottom of goodness. Don't mess up a good tune with vafc, </TD></TR></TABLE> This man speaks the truth!


Modified by kaoss_11 at 5:00 PM 3/9/2006

 

thicker HG = More BOOST HP and TQ.
go for it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SVOboy &raquo;</TD></TR><TR><TD CLASS="quote">Why would you tune your ecu and then "tune" again with a vafc. Tuned ecu = best, vafc is somewhere down near the bottom of goodness. Don't mess up a good tune with vafc, </TD></TR></TABLE>

it was a blind tune was getting to much fuil washing out the piston ring and and thin out my oil, not a good tune. the vafc was used to -fuil gave me a better air/fuil.

so where can i pic up a thicker gasket?

 

Ah, good tunes are good,

 

inline pro sells thicker headgaskets

they make pretty good power from their ls/vtec

 

cometic

 

thanks for the help

 

ive got the cometic hp hg, love it, with arp head studs

 

cometic hg... check out some sponsors on here or nipponracing.com

arp head studs, go with the gsr ones.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spuddo01 &raquo;</TD></TR><TR><TD CLASS="quote">thicker HG = More BOOST HP and TQ.
go for it </TD></TR></TABLE>

Incorrect. HP and torque are determined by the quality of the tune and the efficiency of the build. Turning up the boost will actually make less power on a 9.0 : 1 engine than on a 12.0 : 1 engine, it will simply be safer to do on a lower quality tune.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18delturbo &raquo;</TD></TR><TR><TD CLASS="quote">it was a blind tune was getting to much fuil washing out the piston ring and and thin out my oil, not a good tune. the vafc was used to -fuil gave me a better air/fuil.

so where can i pic up a thicker gasket?</TD></TR></TABLE>

Yeah, that says nothing for a VAFC's ability to tune jack ****. VAFC's are ricer toys, not proper tuning aparatus. If you have someone tune with Crome who knows wtf they're doing, you wont have that problem. Why the hell didn't you just retune the car with Crome - which is free - rather than buy a VAFC?

And it's "fuel" not "fuil"

People, the headgasket and the internals don't make nearly as much of a difference as an awesome tune will. If Mase or Church or Sgt. or St00pid tunes your car, you'll have a stock-block monster that will last forever with proper maintenence. Period. All the gadgets and parts in the world won't save an engine from a healthy dose of stupid.

 

back to the hole tuneing thin i moved to ny then turbo my car my boys in nc did my chipping he i told hi what it had and he tuned from there. don't know any one in NY that tunes or it would of been done a 3 week back. and about the hole rice thing not cool my boy wit his hatch in NC ran 10.2 in 1/4 at 14psi with 75 shot the only thing he had for tuning was a VAFC so rice or not they still kick ***. oh yea FUEL.