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Old 02-19-2015, 11:44 AM   #1421  
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I believe with the supertechs you can pull the inner spring out of the doubles and run them as singles, but I'm not sure why you would bother to do it.

Why is the head at the shop? I've lost track of this build since we derailed it with MRLS talk
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Old 02-19-2015, 11:47 AM   #1422  
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Oh, I thought you must have measured them, I had the same thought about the 1mm being difficult to eyeball.

G, the head is at the shop because the engine is at the car, of course!

Seriously though... Compression test was low, starting with the head to figure out why.
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Old 02-19-2015, 11:49 AM   #1423  
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Sorry, I skimmed. I see it now.

Why is it exactly that we seem to have multiple people with valve seat issues all of a sudden?
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Old 02-19-2015, 12:12 PM   #1424  
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Quote:
Originally Posted by EO2K View Post
Why is it exactly that we seem to have multiple people with valve seat issues all of a sudden?
Yes. This. I still don't have a satisfactory smoking gun to the 20 hours between head overhauls that I've been enduring.
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Old 02-19-2015, 12:14 PM   #1425  
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Yes. This. I still don't have a satisfactory smoking gun to the 20 hours between head overhauls that I've been enduring.
I'm scared to do a compression check on mine. Been having a rougher idle lately and I'm not sure if it is tune related. Ugh.
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Old 02-19-2015, 12:46 PM   #1426  
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Dammit G, how DARE you only skim my thread! STUDY this stuff man!!



To be fair: My car ran perfect before it got a little hot one day (245-250 indicated). After that it still ran well but not quite the same, and when cranking to start it wasn't an even sound.

I never did a compression test before overheating and I didn't do a warm one after but the head gasket looked fine so it had to have been something else.
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Old 02-19-2015, 12:47 PM   #1427  
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Wasn't it a trackspeed engine?
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Old 02-19-2015, 12:50 PM   #1428  
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At one point, yes. But he had some issues with the TSE engine, and had it re-rebuilt at Pit Garage in LA with wisecos.

So, no, it's not a trackspeed engine.
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Old 02-19-2015, 03:17 PM   #1429  
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Quote:
Originally Posted by EO2K View Post
I believe with the supertechs you can pull the inner spring out of the doubles and run them as singles, but I'm not sure why you would bother to do it.
You can do this with the heavy doubles (the outer spring is the same spring as the Single spring kit), but I wouldn't do it with the light double kit (the outer spring is different).

I'm not sure what happed with Ed's motor at Pit Garage - we were never even contacted before it was rebuilt.
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Old 02-19-2015, 03:47 PM   #1430  
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Yeah, I don't have any details on it either. I'm sure you would have taken care of it had the issue been brought to your attention. All I know is the car ran great when I got it, and there was a box with used Supertechs that came with the car.
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Old 02-19-2015, 04:17 PM   #1431  
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Andrew, so you know if oil jets went in originally? As far as I've heard from Ed who's heard from the PO, it was rebuilt for oil consuption issues.
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Old 02-20-2015, 04:59 PM   #1432  
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From Josh:

Quote:
"So head was warped .014", which is pretty significant. You also had a number of valves leaking, as my bench test showed. He wants the cams and the caps brought to him tomorrow for further evaluation. Sounds like if the cam journals aren't straight, or are too warped to be straightened, the head will be scrapped.

Sorry this isn't better news. If I were you I'd email Andrews, ask him what the max "out of straight" tolerance for cam bores is, and what he might suggest? Worth a shot."
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Old 02-20-2015, 05:12 PM   #1433  
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From Josh:



Ouch. Sorry bro..
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Old 02-20-2015, 05:16 PM   #1434  
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Didn't josh just buy a VVT head?
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Old 02-20-2015, 05:25 PM   #1435  
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Shhhhhh
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Old 02-20-2015, 05:25 PM   #1436  
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Get on your knees Ed
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Old 02-20-2015, 05:30 PM   #1437  
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I've got a spare complete VVT head in the garage if you guys are hard up. Its standing in for my 4W at the moment.
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Old 02-20-2015, 05:32 PM   #1438  
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I don't think I want VVT anyway.

I found some reman options for under $500 so going to see if they're available. I don't really want a used head simply because I've already got one of those and it's no good.
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Old 02-20-2015, 05:43 PM   #1439  
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Why not? It's a better head and your ms can control it.
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Old 02-20-2015, 05:46 PM   #1440  
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If tuned properly, it can also help with dat spool.
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