Ring gap? Diamond forged/blower motor
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From: Dublin, CA
Ring gap? Diamond forged/blower motor Could someone tell me ring gap for Diamond forged pistons in a blower install?
I've heard .035 on both, I've read .015-.020, and 2nd ring gap is 1.5x top ring.
Does blower make a diff? Forged pistons?
I've heard .035 on both, I've read .015-.020, and 2nd ring gap is 1.5x top ring.
Does blower make a diff? Forged pistons?
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Re: Ring gap? Diamond forged/blower motor i think with a blown application i'd defiantely call diamond. Chris is absolutely excellent to deal with and im sure he could tell you anything you'd want to know.
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From: Clinton Twp. Mi
Re: Ring gap? Diamond forged/blower motor How much boost are you planning on running? If you are around 10-12 pounds you can get away with .018 on the top ring and .020 on the 2nd ring. If you are running more than that for boost then I would go up ion gap accordingly. Running .035 for gap would be a lot. You would have a lot of blow bye with that much gap!!
Chris Gelineau
Diamond Pistons
877-552-2112 toll free
Chris Gelineau
Diamond Pistons
877-552-2112 toll free
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From: Dublin, CA
Re: Ring gap? Diamond forged/blower motor
If you are around 10-12 pounds you can get away with .018 on the top ring and .020 on the 2nd ring.
I test fit the 2nd and 1st rings in the cylinder and the ends overlap. Is that normal? The bores were opened up with a hone to get the proper clearance for the pistons, but the bores are still too small for the rings.
I searched the bay area for a piston ring gap grinder, no luck. So I'll gently scribe and file ring ends tonight.
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Thread Starter
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Joined: Dec 2001
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From: Dublin, CA
Re: Ring gap? Diamond forged/blower motor Um, slightly overfiled a top ring. Maybe two. Most of the top rings are .018, and the second rings are exactly .020. But one or two of the top rings got to .022, I measured (feeler gauge didn't fit), filed, and measured (feeler gauge can tilt in slot), cursed.
Am I OK, or should I ask Diamond to FedEx two top rings?
Am I OK, or should I ask Diamond to FedEx two top rings?
