Make slowboy not so slow

[asshanson]

Smoked today on startup, but stopped when it was warm. Did a few 5psi pulls from 2nd to 4th up to 5500rpm range, the a few 10psi, then 15-18psi. Compression test read 140-150 for all four, though the tester was pretty ghetto. It was a rental from oreillys that had seen better days. I tried to compare numbers to the ZX2 but the tester didn't fit... so no luck there.

I'll continue to beat on it a little, maybe a few short WOT pulls in 2nd to 5000rpm, the wastegate has an 18psi spring so I won't be boosting too high. I did another 10 miles on it today for a total of 30 so far, there isn't much time left for the rings. I'll be pissed if they don't seat properly.

Bled the brakes again today, they feel much better but still not great. I'll do some hard braking and bleed them again before the cruise. Also found out one of the oil pan bolts was rubbing the timing belt, not the cover. It was one of the shorter bolts, but the crank scraper was in there before which was probably 1/8" thick so it didn't rub, I cut a few threads off the end and problem solved.

[Swifty1638]

I got a tester at work if i wanna try it out.

-A. Swift

[santa]

I've got a nice matco compression tester in my car right now as well if you need a good one. Its nearly brand new.

[asshanson]

I changed my wastegate spring to 3 lbs so I can run whatever boost I want, did some WOT pulls at low boost, and I have it set to 14psi now, still shifting around 5k rpms.

Still smokes quite a bit on startup until it warms up, then the smoking goes away. I have almost 50 miles on it now so I'm going to change the oil tonight, and check the turbo for shaft play and replace or clean out the filter on the oil feed line.

Do I need to give it more time for the rings to seat properly? I thought if they weren't done by now they would never seat all the way.

[Halon]

I would think after 50 miles, a lot of the ring seating has taken place. But I would still not romp on it for the sake of the bearings.

[Kracka]

As you know, I differ in my engine break-in approach than most on this board. This is actually one of the few things I agree with Buschur on. I think a properly machined engine should be broken in hard and fast. If your engine is still smoking after 50 miles there is something wrong with it :(

[JET]

Yep, after 50 miles almost everything is broken in. I would do a leakdown test on it and get a good compression tester. If that is ok, then start looking at the turbo. What color is the smoke? If it is just some white smoke, then I wouldn't worry too much.

[asshanson]

It's pretty light, but has a slight blue hue to it, which I know isn't good. For the first 15 seconds after starting there is zero smoke, then it builds slowly and continues until it's almost warm.

I'll test compression when I'm back in Minneapolis on Friday. In the meantime, I guess I won't sell the extra 5 ring sets I have, just in case I have to redo this process over the summer.

[A//// Guy]

Im guessing its your turbo, which would suck since it was just rebuilt...

[niterydr]

As you know, I differ in my engine break-in approach than most on this board. This is actually one of the few things I agree with Buschur on. I think a properly machined engine should be broken in hard and fast. If your engine is still smoking after 50 miles there is something wrong with it :(

:score010: