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Old 07-18-2005, 04:24 PM   #1 (permalink)
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head gasket issue....

okay i know this can be a general topic but im posting this here caus it has to do w/ turbo....

SHARK .... thanx again for info. .. well here it goes i do know that a thicker head gasket still doesnt make up for the compression of our motors while going forced induction ... but i do need to put a new head gasket in ... and it should be a thinker one... i know to get COMETIC ...but what size they have 87mm either
.030 , .040, or .043 .... the .043 is the biggest gasket (right? ) is that what i should get??? it will lower compression but i shouldnt expect to be a quick fix.... I AM GETTING THE P72 chipped w/ hondata w/ boost data log etc.... that should fix my tuning issue.... i am also getting arp head studs.... now since my head is going to be off ....is there any things i should / could do to help performance.... ??? port polish??? vavle job???

also is there stronger rings that i can put in .... because i know h22 's are know for weak ring lands under boost... please need whatever info.... i dont wanna go crazy w/ the block but i just wanna take preventive percautions... not alot of people know bout h's least not around me ...every shop shakes there head ... like they dont wanna be bothered with the H eadache
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Old 07-18-2005, 04:48 PM   #2 (permalink)
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Woah, hold up. Has it been determined that you have a blown head gasket? Has all other damage been ruled out? Did you get a compression check done?

If the head has not been removed yet, I would also advise that a cylinder leakdown test be done on the motor to verify that nothing else is damaged.

If your head gasket is indeed blown and/or you lifted the head, you have more worries than just a new gasket and new head bolts/studs. You will need to have a mechanic determine whether the head and/or the top of the block warped. If either is warped, they will need to be machined true. If one or both is machined, then I would start worrying about a thicker head gasket. The thickness of the gasket will be determined by how much material is machined off the head/block during resurfacing.

If the head and the block do not need to be surfaced, I would recommend sticking with an OEM head gasket. It's the most reliable available, and in my opinion going with a thicker gasket to try to lower compression is more headache than it's worth. Good management and tuning will prevent a repeat event.

Regarding head gaskets and lowering compression, this is just my personal opinion, so if others disagree with good reason, please post up.

If you haven't yet ordered Hondata, and you are near a Neptune dealer, I highly suggest going Neptune. It is a better product than Hondata, and it is less expensive. www.hrtuning.com

Rings and ringlands are two different things. Ringlands are part of the piston itself, and if you want stronger ringlands, you need stronger pistons. Without getting into the specifics or a debate, generally the block MUST be sleeved with iron sleeves in order to run aftermarket forged pistons.
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Old 07-19-2005, 07:59 AM   #3 (permalink)
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Do exactly what shark said! He's 100% correct. The OEM head gast is much more reliable than the cometic. I've seen many examples of Cometic gaskets going bad.
Cometic began to get a good name years ago because they got into NASCAR. They got in because they could produce prototypes very quickly, but soon after they got a bad reputation because of premature failures, so FEL-PRO is still the gasket of choice in NASCAR.

Who here hates NASCAR? I do...
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Old 07-19-2005, 02:50 PM   #4 (permalink)
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okay... well sometime today im getting compression tested... i found my old ecu... its a p5m
from the lude when it was auto... is there a way to change it from auto to 5spd??? i know now that neptune can use a stock ecu... but even obd2??
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Old 07-19-2005, 07:53 PM   #5 (permalink)
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You can convert the auto p5m to manual, but OBD2 ECUs are not chippable. You will need an OBD1 ECU for Neptune, Hondata, Uberdata, Chrome, <insert your choice of ROM editor here>. A p28 or a p72 will do fine.

And yes, I hate NASCAR too.
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Old 07-19-2005, 08:39 PM   #6 (permalink)
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listen tothem ^^^^^^^^^^^^ i changed 2 cometics with your exact setup honda OEM only not to mention you make more power and more reliablility than the POS cometic hahah
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Old 07-19-2005, 08:47 PM   #7 (permalink)
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Get a stock thickness headgasket.
A thicker headgasket will lower compression, but it wil hurt the engine's ability to resist detonation. The overall tune is more important.

I second Shark's Neptune reccomendation if you are anywhere near a tuner for it.
http://hrtuning.com/index.php?page=neptunetuners

MUCH cheaper, more reliable, and you'll have more money left over to get a proper tune, including part-throttle.
Anyone who is in an area with neptune available who buys any hondata system at this point in time is making a big mistake.
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