Jose and I went to D1 today and I took some pics. Mostly Toyota related. A few are from just before we left for the event. Jose got a new Soarer stock front bumper, headligts and parking lights on Ebay and had the bumper painted yesterday and installed it this morning. I got a pic with Tarzan...
What one guy did or didn't do has no bearing on my judgement. I am talking in general, and generally speaking the 7m stock headgasket blows, literally. I'm going from my own experience working on maybe 50+ Supras, not from what one guy said he did one time on a forum.
Don't be sad... :icon_bigg I am talking about the stock design, if you put a mhg on it and arp studs, you only have to worry about the rod knock! bwahaaaaaaa!!!! Resize the rods and grind and/or polish the crank and put arp rod bolts in to fix that issue. Shotpeening the rods is a good idea...
Right, but 50 years ago you just used what was available to you at the time, now in modern society we have products that are made for specific applications. I have old machinists who have built 1500hp blown engines for years and years tell me a 50-60 ra is fine for a mhg and they don't...
A though I just had:
Another problem is that Toyota tried to use the same headgasket for several M series engines to save money rather then redesign the 7M once they started turbocharging it. I know they never had turbocharging in mind when the M series was first develloped. They were just...
I agree 100%, but, if the block and head were designed differently, it would not be as much of a problem.
I have a stock headgasket here I will gladly donate and ship for free if someone promises to go for 700hp with it. :naughty:
The mk4 has a METAL stock headgasket, Toyota changed to metal headgaskets after they had lots of problems in the late 80's, early 90's with headgaskets on several models of engines, not just the 7m. Here is a 1jz hg next to a 7m hg:
See how much more surface area the gasket covers around the...
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