My sons 1989 Supra 7MGTE build up and story.

[starscream5000]

Don't even bother, like I said, it flaked off.

 

[aljordan]

not 100% sure if I will mill the pistons. I only need .006 of an inch (.1524 mm) I already have a MHG from greedy 1.4 mm or .0551 inches. Since I figure a MHG has less squish than stock and I am using ARP Studs it probably may be a mute point. Since these pistons are 0 deck and if I stick up .006 i will end up with .049 piston to head clearance. It will bump up the compression slightly. So the jury is still out. My guess is i will pre assemble look at it, cc the head and piston, do the math for compression and then decide.

I wouldn't worry about it honestly. There are some people that run NA pistons with turbo everything else and it works just fine.

The greddy gasket will be more than enough to keep compression in the ball park.

I would also try to find something to coat the greddy headgasket. I've had 2 that seeps oil on the exhaust side of the motor. Another friend has one that is currently doing the same thing. This is with a lapped head and block on all 3 motors. Be carefull what you use, as it may eat at the coating on the greddy head gasket. Read up on the tech notes regarding this in the tech section of this site.

It looks pretty solid so far. You may not want to give it up...

 

[aljordan]

You'll find a lot of varying opinions, but I would not use the FAL fan setup. I'd stick with a good Al radiator and clutch fan. I can't back that up with any real scientific data, but I have tried using electric before and didn't like it very much. I was using an Autometer coolant temp gauge and the temps remained much more stable using the stock fan. A/C cooled much better for me as well.

Other people will have other opinions, but that's just mine.

Absolutely without a doubt. The mechanical fan is sooo much more reliable than anything any after market company throws at you. I've seen instances where the electric fan thermostat would burst into flames. I've also read about them failing many many times.

The stock mechanical fan is robust and a quality piece for the 7mgte.