Correct me if I'm wrong, but I still don't understand the idea of running more air through an engine that is showing signs of weakness. It still seems like if you're that concerned about the engine (and the possibility of a rebuild) that you should spend the money to get a darn near perfect running engine, *then* spend more money to boost it. Your power level would be higher and you'd be happier because you're not sitting around worrying about the thing blowing up on you.
-Bryan --- On Tue, 6/10/08, Dillon <[EMAIL PROTECTED]> wrote: From: Dillon <[EMAIL PROTECTED]> Subject: Re: turbo a motor with less than perfect compression? To: "Bill Cardell" <[EMAIL PROTECTED]> Cc: "miatapower List" <[email protected]> Date: Tuesday, June 10, 2008, 1:50 PM Hi guys, Thanks for all the input. I can't answer the detailed questions too definitively. I moved into a smaller apartment last year and don't have access to the tools myself (incredibly frustrating). Coop (of Coop's Miata) near Seattle did the tests while he had my car for a roll-bar install. I witnessed the compression test but not the leakdown test. As for how much oil, it wasn't too much as I recall, maybe a few teaspoons per cylinder? As for the leakdown test, I can't say for sure if the motor was hot or cold. I could ask but I doubt Coop would remember my specific car since this was a few months ago. I would assume it was hot, as that seems to be the thing to do, and Coop is experienced at these things. He said he could hear the air whistling and that it was definitely rings, but I don't recall if he said he heard the air at the exhaust, or the crankcase. I am assuming the crankcase. Does any of this add up? On Tue, Jun 10, 2008 at 6:59 AM, Bill Cardell <[EMAIL PROTECTED]> wrote: I'm with Tim. Make sure the engine is warm. Something else I've seen is dislodged carbon from the plug threads throwing off comp tests. On a good hot engine, redo both tests. Also, how much oil did you put in? Too much and you're just reducing chamber volume, which will push numbers way up. Also, as Tim said, where is the air leaking from on the leakdown? That is the utility of the leakdown test, it tells you "what" is bad. The bad thing is that no test I'm aware of will tell you anything about oil ring condition, but you say you're not using oil. _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
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