Ivan280zt Posted December 31, 2003 Share Posted December 31, 2003 Hey guys i am just wondering what compression do you get when u use 1mm metal head gasket and what do you get when u use 2mm metal head gasket on l28t? i can get a used 1mm for $50 or should i just use a stock oem nissan head gasket which also goes for about $50 brand new. please let me know what you guys think. Thanks Ivan Quote Link to comment Share on other sites More sharing options...
fl327 Posted December 31, 2003 Share Posted December 31, 2003 Just out of principle i would just get the oem nissan headgasket. 2mm is too much on stock l28et engine, would bring cr down to 6.99 or maybe 7 flat. Its already too low for me, would want to see it get lower. 2mm is for higher cr turbo engine to me, like flatop f54/p90 to cut down cr a notch and add strength. Quote Link to comment Share on other sites More sharing options...
Guest Zcarsmakemyheadhurt Posted December 31, 2003 Share Posted December 31, 2003 I use Fel-Pro head gaskets, they are alot stronger than a factory unit. If your bring on some real high boost ARP head studs may be a good idea. Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted December 31, 2003 Share Posted December 31, 2003 I love the metal head gaskets. If you have the opportunity to grab a 1mm for $50, then do it. They can be reused over and over again. The new Nissan jobber is ~1.2mm crushed and the Felpro is 1mm crushed as well. I'd use the metal one, hands down. Quote Link to comment Share on other sites More sharing options...
fl327 Posted December 31, 2003 Share Posted December 31, 2003 Hey didnt mean to sound like a purist from that first post, I just like to use new parts and if that was the choice I would have used an oem, or felpro headgasket. I prefer the steel ones too, but I honestly would pay the 150 just for a new part. Probably go head studs on next setup, I wouldnt have any regrets about reusing that system. Quote Link to comment Share on other sites More sharing options...
Guest Zcarsmakemyheadhurt Posted December 31, 2003 Share Posted December 31, 2003 I don't reuse them more than twice. Quote Link to comment Share on other sites More sharing options...
yo2001 Posted January 1, 2004 Share Posted January 1, 2004 I don't know how much Felpro holds. I'm all for Nissan unit as the sealing rings are larger than Fel pro if I remember right. But mostly, the HG sealing is in the prep. If the head and the bloack is true, it'll seal good. AS far as the HKS metal HG, I doubt mine is ever going to come off unless I break my pistons or something. I recommend it for those who do not want a worry. Quote Link to comment Share on other sites More sharing options...
Cody 82 ZXT Posted January 1, 2004 Share Posted January 1, 2004 I've got the Nissan gasket and ARP studs and it's held fine at over 20 PSI when I was runing some race gas. Just make sure your block and head are fllat and almost any gasket will do a good job unless you get into detonation. Quote Link to comment Share on other sites More sharing options...
Lockjaw Posted January 4, 2004 Share Posted January 4, 2004 Over 15 psi with stock headgasket and bolts, plenty of time over 20, and lots of passes over 22psi with no issues, until now. So 6 years. Pure abuse, plain and simple, not going to lie about it. This time, HKS 2mm, and ARP studs, that baby is not going to ever blow. Of course my block is decked, and the head has been trued. Quote Link to comment Share on other sites More sharing options...
Ivan280zt Posted January 9, 2004 Author Share Posted January 9, 2004 Hey guys sorry for replying this late (i got info that i needed) but it turns out that its 2mm gasket so i dont know if thats way too low for l28t? does anyone know what compression do you get with 2mm gasket? Cody which h/gasket are you running? Ivan Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted January 9, 2004 Share Posted January 9, 2004 That should give you around 7:1 compression. Your off boost would be crappy. I'm not sure how that would affect you under boost though. I need another 2mm gasket, used is OK 8) If you don't use it, or if anyone else has one, lemme know. Quote Link to comment Share on other sites More sharing options...
Ivan280zt Posted January 9, 2004 Author Share Posted January 9, 2004 Hey Mike whats going on man. did you run 2mm on your old setup? and do you know how much would it be to shave the head some to raise the compression up to like 7.8 or so? Ivan Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted January 10, 2004 Share Posted January 10, 2004 I am not sure how much to take off exactly, but using the 2mm gasket on a stock turbo bottom end, you'll have to get the head cc's down to around 44-45cc's from the stock 53...to yield ~ 7.8:1 compression Quote Link to comment Share on other sites More sharing options...
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