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Ricksta
02-10-2007, 07:04 PM
what would be the difference between a 1mm and a 2mm headgasket? i was thinking about putting one on while the motor is out. what kind of changes would i expect after the deed is done?

T-spoon
02-10-2007, 07:07 PM
2mm is thicker than 1mm. If you have a 2mm and go to a 1mm, it will raise your compression. If you have a 1mm and go to a 2mm it will lower your compression.

burnyd
02-10-2007, 07:10 PM
just compression being that one is 1mm larger than the other...

2kSnakEater
02-10-2007, 08:47 PM
So what's stock? 1mm?

T-spoon
02-10-2007, 09:15 PM
So what's stock? 1mm?

Not even real sure what car we're talking about, that's why I put it in relative terms. Depending on the car, it may not even have stock compression based on changing the gasket size or milling the head or changing pistons etc.

Ricksta
02-10-2007, 09:21 PM
the 3sgte...i just want to have a little more insurance when running high boost.

Lagos
02-10-2007, 09:28 PM
the 3sgte...i just want to have a little more insurance when running high boost.


a thicker head gasket wont give you that. you can have the best head gasket in the world and still blow your ring lands or your pistons. its also not a good idea to keep cracking the seal on the head gasket. its not really meant to be something thats replaced often.

if you want more insurance, get the water injection kit that i have. it will do far more then a thicker head gasket ever could.

Ricksta
02-10-2007, 09:34 PM
im building an mr2 with a budget here so water injection just isnt going to fit in on my budget just yet. maybe a little down the road it will.

Lagos
02-10-2007, 10:33 PM
it costs 200bucks. im pretty sure thats in anyones budget.

T-spoon
02-11-2007, 12:15 AM
it costs 200bucks. im pretty sure thats in anyones budget.

Anyone that can afford to take a head off to put a different HG on when the current HG has no issues, can either afford WI, or can't afford to be touching the car.

Mister2T
02-11-2007, 01:45 AM
Rick I was always told if its not broke dont mess with it :)

Hookecho
02-11-2007, 02:10 AM
Anyone that can afford to take a head off to put a different HG on when the current HG has no issues, can either afford WI, or can't afford to be touching the car.

x10

Ricksta
02-11-2007, 02:21 AM
Rick I was always told if its not broke dont mess with it :)
will do!

MrWOT
02-12-2007, 12:31 AM
You don't just lose compression... running a thicker hg also messes with your quench characteristics and will affect flame propigation.

alltracman78
02-12-2007, 12:56 AM
That too^


Anyone that can afford to take a head off to put a different HG on when the current HG has no issues, can either afford WI, or can't afford to be touching the car.

Well said!