File fit rings
12-02-2015 | 07:31 AM
#42
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I'd like to see a test with a blowby meter installed, with a properly setup gapped ring, vs a gapless..and see what is really going on. Conventional gapped rings aren't designed to seal sitting on engine stand with the engine off. I think its pretty much been proven many times by some pretty big time engine builders/race teams, that the low leakdown numbers when comparing gapless rings, have no real world relation to what is really going on once the engine is off the stand.
Last edited by horsepower1; 12-02-2015 at 07:59 AM.
12-02-2015 | 07:33 AM
#43
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Ran the top gapless rings before I hatted them motor used more oil than my standard gap ring pack, Just rebuilt 2 900sc mercruisers that also had the top gapless it used oil. I have herd lot of complaints about that before. If you ask me if the engine has no blow by the ring pack will fill up with oil and it will not preform well at all.
And the cylinder prep was done correctly!
And the cylinder prep was done correctly!
12-02-2015 | 08:16 AM
#44
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From: yorkville,il
Actually it's pretty much the opposite. Gapless tops almost always show a few more HP and if that's what you're looking for, then they're the way to go. I hate them because they're a PITA to install so I usually just stick with conventionals, especially on builds where I'm not looking for every single last HP but then, I have a twin turbo BB going together that we used the gapless top on. I think I let Ed @ TS talk me into that one. Pro Stock drag teams run them as thin as .031". I know that's not really relevant to the discussion, just showing to what degree they'll go to use them. Pretty much used in all high end racing. Blow by testing is where they usually shine the most. Every serious dyno set up should have a blow by meter. Cyl prep can also mplay a huge factor in how well -or not- gapless top rings work. Gaplaess top, napier second and low tension oil rings usually works out to be a good combination but there is also a lot of disagreement on the benefit of gapless tops. One big benefit across the board that's talked about is less oil contamination and better vacuum.
12-02-2015 | 08:29 AM
#45
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Yep...I've also heard where guys install them upside down...
12-02-2015 | 10:40 AM
#47
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From: Chicago
So is the consensus standard rings for a blown application? Or is there no consensus?
Milds oil stays clean a long time and very little blow by with standard rings. That`s my number 1 concern.
Mike I~m going to leave that up to you
Milds oil stays clean a long time and very little blow by with standard rings. That`s my number 1 concern.
Mike I~m going to leave that up to you
12-02-2015 | 10:54 AM
#48
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From: Northport N.Y.
http://www.pro-touring.com/threads/4...from-old-site)
Gapless more bad than good. TS likes to blame it on valve seals.
Gapless more bad than good. TS likes to blame it on valve seals.
Last edited by 14 apache; 12-02-2015 at 10:57 AM.
12-02-2015 | 11:10 AM
#49
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http://www.pro-touring.com/threads/4...from-old-site)
Gapless more bad than good. TS likes to blame it on valve seals.
Gapless more bad than good. TS likes to blame it on valve seals.
12-02-2015 | 11:31 AM
#50
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From: Michigan
I don't know much about these things as some may say, but I believe for what most of us have or are building for weekend warrior engines standard rings seem to be plenty good! Again just a novice old school oppinion no facts to back up anything I say.
