oil question

[john robertson]

Well, thanks for the explanation. Makes sense. I couldn't find out those details as I bought the engine used and I found out from the seller that he himself did not assemble it. The machine shop did. I can't complain because I got it very, very, cheap! The heads and roller-rockers alone are worth twice what I paid for the whole motor. I'm sure I'll be OK as long as my compression numbers don't decline. 

[earlbrown]

They shouldn't decline.   Once the engine is ''broken in'', it's pretty much done.

There's worse things in life than oil that turns black.

[john robertson]

Just to finish up, I did an abbreviated compression test, testing only one cylinder which initially read 132 psi before adding the Restore. Unfortunately it still read the same thing after 600 miles with Restore. So much for that, at least in my experience, but it was worth a try.

[earlbrown]

132 might not be that bad depending on your static compression and cam timing.
Since you didn't build the engine, there's no way to really know.

A leak down test would have been a better control, but that would require the use of my time machine now.

[TexasT]

I'd do the leak down now and see where you are. And I wouldn't feel bad about the 132 psi. More boost fixes a lot of ills. 

[Top Speed]

very informative thread

[john robertson]

I'd do the leak down now and see where you are. And I wouldn't feel bad about the 132 psi. More boost fixes a lot of ills.

It's a minor issue, and I'm not really concerned, because, my immediate thought was, as you say, just turn up the boost to compensate for lower compression, and maybe like Earl has suggested, it's due to cam timing. It's a 212-212, by the way. If my compression was higher, I'd just have knock at lower boost. I'm running at 21 lbs of boost now with a 6262 turbo w/ DIY alky, with no knock. I'd turn it up, but the incidence of challenges out there, for me, anyway, is so low, I'm just not motivated to do so. Hell, I just took off my 20" wheels and gained at least three car lengths out of the hole.

[earlbrown]

If I'd known you had 20" wheels, I'd saved you a lot of trouble



...and never replied at all.




Glad to see you're getting warmer to having an actual car that may, or may not, run right.