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Old 09-03-18, 11:26PM   #16
turbo louie
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But my everyday level is 30psi..
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Old 09-03-18, 11:30PM   #17
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Ive never torched a gasket to be clear . Just would blow water out of the overflow. Open the hood and there would be water everywhere... Did a test once where i took the overflow hose and placed it so it was outside of the car SO I COULD SEE IT. would only blow water out after 27 psi under that it would hold. lol..
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Old 09-03-18, 11:33PM   #18
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Very much interested in this, can you tell me were you got the sleeves ?
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Old 09-04-18, 05:27PM   #19
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I got the sleeves from my machinist..
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Old 09-04-18, 06:40PM   #20
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I forgot to say that the center cylinders would be way down on compression as well. The typical problem was the motor would start running rough after a run. So i would do a compression test on them and it would always turn out that the 2 centers were leaking into eachother .

The way i figured out the head was soft was one day i started noticing the nut on the center stud was sinking deeper and deeper into the head. I couldnt even see the washer under the nut anymore at this point. It was at least down 3/16"s. So i took the head off and went down to my machinest. So he looks at it and says to me throw this thing out its done. Too many heat cycles, its soft now! I was like no way dude! So i went home and thought about it and came up with the sleeve idea. Since then i have never had a problem again.

Then it dawned on me. When i first started with this project i had got a EGT gage for all the cylinders . So there was a probe in every primary tube 2" off the header flange. The egts would go 1980 degrees and as soon as i lifted off the gas it would instantly go to 400 degrees. So at that point i kind of realized that was a big part of why the problem was happening...
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Old 09-04-18, 08:06PM   #21
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Wow ! From 1980 and cool right down to 400 degrees. Definitely the issue and softening the aluminum. That’s almost to melting point of aluminum.

When we needed to bend copper pipe with out kinking it, would heat the area until it was cherry red let it cool area of the bend would become real soft.
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Old 09-04-18, 10:15PM   #22
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Yeah at first i was worried about it and i even got the probs and gage checked but it check out all good. As for the melting point of aluminum is ball park of around 1140*f depending on the alloy. Never had a piston melt either .. I geuss it being surrounded by the iron cylinder and the wrist pin and rod absorb alot of the heat which help it live through it all ..
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Old 09-04-18, 10:20PM   #23
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Heres a picture of the first fix i tryed. Its a ARP T-washer that did nothing but sink as you can see...
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Old 09-04-18, 10:40PM   #24
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Heres an end one . Look how it was cracking the edges as it sunk...
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Old 09-04-18, 10:53PM   #25
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Holy shit !
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Old 09-04-18, 11:23PM   #26
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I did the modification that "Charlie's sleeve mods" on my Butler Wide port heads. It made 570 NA hp and with the Turbo combo it made 1265 hp and 1100 ft lbs at 5800 rpm at 15 lbs as the IATs were climbing and messing up my AFRs due to not having an intercooler. But I really feel that "Charlies sleeve mods" works as you are clamping on the deck of the heads vs the weak column support that gets HOT on a turbo application. I also had the T washer but removed it in the 3 exhaust side and replaced it with the sleeve. This also not an expensive mods to do. I believe Marty with the Turbo Triumph also did this mods as he saw Charlies thread.
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Old 09-04-18, 11:28PM   #27
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Now I can understand how it works. Could you say the sleeve helps dissipate the heat
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Old 09-04-18, 11:32PM   #28
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Looking at my the bolt holes on my EHEADS I canít see there enough room to put a sleeve in my studs 1/2, just seems like the sleeve would stick into the exhaust port
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Old 09-04-18, 11:38PM   #29
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Help me out here Iím definitely interested in doing this mod, sleeve would have to be a minimum of 3/4 in diameter with 1/2 insight diameter. Plus wouldnít it have to be a press fit.
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Old 09-05-18, 01:42AM   #30
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Quote:
Originally Posted by Pard View Post
Help me out here Iím definitely interested in doing this mod, sleeve would have to be a minimum of 3/4 in diameter with 1/2 insight diameter. Plus wouldnít it have to be a press fit.
Heres a picture of the hole drilled.....
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