Issues with blowing head gaskets above 40 psi

[91Galant]

So I've had an issue of blowing head gaskets out whenever I get above 40 psi. I currently have L19 head studs and an o-ringed block. I've tried pretty much every head gasket that I can think of at this point. I came across this video:

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and it seems like an interesting idea. Has anyone ever seen anything like this done? I currently am running a 2.0L long rod - I have to admit I also like the idea of running a 162mm rod or a 94mm crank and sticking with the 156mm rods.

 

[jdxnc]

Have you tried the vulcan cut ring gaskets? Our group has pushed them over 50 psi with no issues so far.

 

[We're on Boost]

anyone ever seen anything like this done?

Wow that's really a bunch of stuff. Interesting.

 

[91Galant]

Have you tried the vulcan cut ring gaskets? Our group has pushed them over 50 psi with no issues so far.

I haven't. I'll have to look into that

 

[Car Cannibal]

Double head gaskets and a 12mm deckplate, interesting. But making 700tq by 4000rpm at 45psi on this platform seems even more insane, wow.

 

[1990TSIAWDTALON]

700 ft/lbs of torque. I hope it has a Dogbox.

 

[92GVR4SC]

So I've had an issue of blowing head gaskets out whenever I get above 40 psi. I currently have L19 head studs and an o-ringed block. I've tried pretty much every head gasket that I can think of at this point. I came across this video:

You must be logged in to view this image or video.

and it seems like an interesting idea. Has anyone ever seen anything like this done? I currently am running a 2.0L long rod - I have to admit I also like the idea of running a 162mm rod or a 94mm crank and sticking with the 156mm rods.

That might be the issue 40 lbs of boost is a lot !! You got to think about that, you're sitting on 4 little cast iron bombs, the motor can only handle so much before it needs to vent.

 

[1990TSIAWDTALON]

Deck the block and surface the head to an RA50 or BETTER (mirror). I run 40lbs with Cometic and HKS HG's. Both hold fine.

 

[diambo4life]

This is an old'ish thread. Personally, I have never had issues running over 40psi in a DSM. Been doing it since the early 2000s. In my old Galant, I ran it briefly in the 50-54psi range on some cool nights and it held like a champ. The setup? OEM MLS head gasket (EVO III) and an o-ringed head (steel.) This is something the Buschur camp had been doing for awhile and when I had him working on my head, was recommended by @Darren Thomas Racing.

 

[1990TSIAWDTALON]

Pm'd

 

[ist dwa]

My guess is something wasn't flat. 40 is pretty simple, l19s with a permatorque too 100ft lbs, LOW COMPRESSION, none of that stupid 11.5 :1 crap.

 

[1990TSIAWDTALON]

And I am getting by with E85 10:1's. I agree.
Its the "little things".