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Old 12-15-2009, 06:27 AM   #1
AaronCDC
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The stock HG is 1.37mm. The thicker the head gasket the lower the compression ratio... not necessarily a desirable thing on a N/A.
weird. thicker ones are more expensive lol. so if i went down to a 0.8 MM. which i saw one.... that would be like the best?
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Old 12-15-2009, 06:46 AM   #2
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weird. thicker ones are more expensive lol. so if i went down to a 0.8 MM. which i saw one.... that would be like the best?
meh sorry i looked wrong. i dont know where i got 0.8 but they have 84 mm bored head gaskets... thinnest i saw was 1.0mm and i have a 1.2mm would i notice much difference between the two?
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Old 12-15-2009, 07:31 AM   #3
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weird. thicker ones are more expensive lol. so if i went down to a 0.8 MM. which i saw one.... that would be like the best?
More materials....

and no... that would be blindly increasing the compression ratio. Granting you a very small bump in power and a nice large bump in risk of detonation. If you want it to be reliable, you want to go with the stock HG thickness + whatever was milled off when the head and block were machined. It's not worth the minimal gain, IMHO.
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Old 12-15-2009, 07:40 AM   #4
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More materials....

and no... that would be blindly increasing the compression ratio. Granting you a very small bump in power and a nice large bump in risk of detonation. If you want it to be reliable, you want to go with the stock HG thickness + whatever was milled off when the head and block were machined. It's not worth the minimal gain, IMHO.
o ok. hmmm. for now should my 1.2mm be ok though? cuz i thought bout just leaving it and gettin my headers and some other stuff done. ooo any idea on where to get a good deal on headers? or maybe someone has some just laying around that they dont want?
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Old 12-15-2009, 07:43 AM   #5
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and just wondering but i have the option in my car that has the range of gas left and my MPG and calendar and blah blah.... how rare is that? someone said its like super rare?
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Old 12-15-2009, 08:48 AM   #6
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I'm not going to tell you whether you should worry about the thinner HG or not... I don't know what else was done. I'd ask the previous owner if he happens to have a list of all the specs from the rebuild. Mainly you want to know how much material was shaved off the head and how much off the block, then you want to know if it was bored over and the thickness of the head gasket.

What you're referring to is the SuperMonitor. It was an option for pre89 MKIIIs, not available for 89+. I don't know that I'd say they're super rare... They're not common, but they're easy enough to find. I've actually got two or three packed up somewhere. They were very cool for the time and they're an excellent reminder of how far ahead of the curve Toyota was back then.
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Old 12-15-2009, 05:07 PM   #7
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Quote:
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I'm not going to tell you whether you should worry about the thinner HG or not... I don't know what else was done. I'd ask the previous owner if he happens to have a list of all the specs from the rebuild. Mainly you want to know how much material was shaved off the head and how much off the block, then you want to know if it was bored over and the thickness of the head gasket.

What you're referring to is the SuperMonitor. It was an option for pre89 MKIIIs, not available for 89+. I don't know that I'd say they're super rare... They're not common, but they're easy enough to find. I've actually got two or three packed up somewhere. They were very cool for the time and they're an excellent reminder of how far ahead of the curve Toyota was back then.
nice yeah lol. ill ask him. i know Transmission and engine have under 10k on em. and the body itself hasn't hit 120k yet so i got a while for this car yet.

yeah the cars are pretty advance. i was showing it off to my co-workers and they were like. huh. they had this technology in 87. i was like yeah i told you it wasn't me that was the only great thing about 87 lol.

but yeah for sure ill ask him.....

thinking about getting the car rapainted too. any color suggestions or maybe leave it yellow?
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Old 12-15-2009, 05:28 PM   #8
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thinking about getting the car rapainted too. any color suggestions or maybe leave it yellow?
that one is pretty much up to you. I heard it was difficult to change the color from original. I myself am a purist. meaning no matter what mods I may have or may do to my car. I will keep my stock look or incorporate them the best I can to maintain said stock look. Yes i have a new cd player yes i have a sirius and a gps. but I added them flushly into my dash by removing my ciggerret holder and using the extra space under my cd player. my turbo timer Ill prolly mount that into my glove box once i get it if applicable. my radar detector is attatched to my sun viser. and once I get my engine upgraded a tad I would want to actually mount my new guages into the dash itself. Things that are flashy and covering the inside of the car just look ugly to me. But if all that proves to be outside my skill range then yes ill just have them in plain sight.. bah
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