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Nitto Headgasket Failed What Should I Use

grygtr

By grygtr,
in Engines & Forced Induction

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Walk510 Enthusiast

Walk510

Posted
Posted

firstly define hi boost ? were your running head studs ? and yes what was the deck roughness like ? even though in the " race engine builders hand book " they say "the gaskets surfaces must be near polished, the problem is there must be some tooth to retain the gasket its a fine balancing act"

r33_racer Grand Master

r33_racer

Posted
Posted

Even head gasket manufacturers state pretty fine Ra, ive seen anywhere from 50-60 RA or finer, some have even stated 15 or finer. The smoother the better, any protruding ridges from machining marks(noticed more so on rougher finish) will chew the gaskets as it expands and contracts, especially when its wedged between two dissimilar materials.

But as everyone else stated, headgaskets blow for a reason. Fix that issue and it wont blow again.

Supa Steve Enthusiast

Supa Steve

Posted
Posted

How did the engine fail? It wasn't from excessive cylinder pressure lifting the head, breaching the head gasket, hydrolocking a cylinder and bending/or throwing a rod?

My engine builder uses Nitto gaskets and has pushed them a long way without issue, maybe another factor influenced the damage.

The Dan Grand Master

The Dan

Posted
Posted

People shitcan Commetic gaskets as well but we've run them without a single problem in boost apps exceeding 30psi. 26psi for 2 years straight racing.

Nitto are a better gasket IMO. I think you're missing something

D_Stirls Veteran

D_Stirls

Posted
Posted

People shitcan Commetic gaskets as well but we've run them without a single problem in boost apps exceeding 30psi. 26psi for 2 years straight racing.

Nitto are a better gasket IMO. I think you're missing something

As you would know, that's cos' people don't prep' BOTH the surfaces, and then they blame the gasket when it leaks?

To the OP, as has been asked did you prep' both the surfaces to the correct spec's?

Beer Baron Grand Master

Beer Baron

Posted
Posted

yeah as above, most MLS gaskets are pretty stout and there may be another issue. but i've got plenty of experience using tomei head gaskets personally and never had a problem. they are very high quality and have lasted through plenty of heat, power and kms. I'm always happy using tomei.

sinistaGTR Grand Master

sinistaGTR

Posted
Posted

yeah as above, most MLS gaskets are pretty stout and there may be another issue. but i've got plenty of experience using tomei head gaskets personally and never had a problem. they are very high quality and have lasted through plenty of heat, power and kms. I'm always happy using tomei.

I had a acl one fail straight away after a rebuild on my old 33. Ordered the tomei and it was gold.

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