Subject	here are a few cons.. from there website
Posted by	Carlos Ramirez on September 26, 2001 at 10:55 PM
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In Reply To	Pros/Cons of copper head gaskets? posted by AshsZ (Retired) on September 26, 2001 at 10:28 PM
Message	BENEFITS OF COPPER HEAD GASKETS 1. Conductivity. Copper is the standard by which all other conductors are measured, therefore a copper gasket provides superior thermal conductivity, acting to stabilize head and block temperatures which makes tuning easier. 2. 25% coefficient of elasticity. One of the properties of copper is that it stretches before a catastrophic failure, thereby providing an extra measure of safety in case of severe detonation. 3. Strength. Copper (in the form we use) has a tensile strength of approximately 32,000 psi, compare this to the 1,200 to 1800 psi tensile of most facing materials used on conventional performance head gaskets. And in addition you can reuse a metal gasket as well..And you can make small modifications to your compression ratio. Like lower you compression from 8.5:1 to 8.0:1 via 2mm head gaskets.
Follow Ups	Pros/Cons of copper head gaskets? - AshsZ (Retired) 22:28:32 09/26/01 copper if most desirable. - nixit(da][as) 22:33:01 09/26/01 I see. Retorque them tho? Pulling plenum is a 12pack ordeal - AshsZ (Retired) 22:35:19 09/26/01 You are really _suppose_ to do that regardless of which hg. (n/m) - DamonH 90TT 22:40:37 09/26/01 yup...more... - nixit(da][as) 22:41:45 09/26/01 Nice. Damon suggests doing stock HG tho, I'm sure it wont - AshsZ (Retired) 22:46:11 09/26/01 the stock Head Gasket is good for 500+ RWHP. - nixit(da][as) 22:50:07 09/26/01 [foot in mouth], 500 may be the real high side...400 = safe (n/m) - nixit(da][as) 22:51:09 09/26/01 yes they are for the Twin Turbo motor.. - Carlos Ramirez 22:51:15 09/26/01 very true. Mal1ce is having his custom made too... - nixit(da][as) 22:52:21 09/26/01 Copper is also cheaper ... once your block is o-ringed. (n/m) - DamonH 90TT 22:41:22 09/26/01 here are a few cons.. from there website - Carlos Ramirez 22:55:21 09/26/01 I mean pros.. duh!! (n/m) - Carlos Ramirez 22:56:48 09/26/01 Is it good to lower the compression, how does that help? (n/m) - 95zTT 23:11:38 09/26/01 It reduces the chance of detonation by lowering the >> - AshsZ (Retired) 23:14:31 09/26/01 UH, i beg to differ... - nixit(da][as) 23:29:58 09/26/01 Why, of course you do. :) >>>> read >>>> - AshsZ (Retired) 00:00:48 09/27/01 Interesting Post. (n/m) - nixit(da][as) 00:12:36 09/27/01 and where do you get those stats? - 97 S14 00:36:43 09/27/01 The table was "rough", only used to show a relationship. - AshsZ (Retired) 01:03:27 09/27/01 There are more factors... >> - MikeeZ 09:20:32 09/27/01 Yup. I didn't mention those factors tho, >> - AshsZ (Retired) 15:43:15 09/27/01 actually by lowering your compression you don't loose that - Carlos Ramirez 06:46:16 09/27/01 Yes. Less compression=less heat of compression. (n/m) - Buzz 04:07:27 09/27/01 Drool Drool. I'm sold, F* it, I'm tearing her apart. (n/m) - AshsZ (Retired) 23:12:53 09/26/01
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