RSMachine 84.5mm B20 piston rings part number? - Honda-Tech


RSMachine 84.5mm B20 piston rings part number?

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Old 02-28-2017, 09:02 PM   #1
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Default RSMachine 84.5mm B20 piston rings part number?

Does anybody know the NPR piston ring part number for B20 rsmachine 84.5mm pistons? Bought a set of those pistons and it didn't come with rings. Seller doesn't know and RSmachine didn't get back to me after calling them and emailing them last week.

What makes it hard is that listed part number on NPR catalog is SWH30437ZZ(-2) which describes the thickness of; Top ring:1.2mm Second ring:1.2mm Oil ring: 2.8mm Bore: 84.5mm

That will not fit the rsmachine pistons as it requires the top ring thickness of 1.0mm. I must say I am beginning to regret buying these pistons because of the service, should of went with YCP's.

TIA.
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Old 02-28-2017, 09:09 PM   #2
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Default Re: RSMachine 84.5mm B20 piston rings part number?

Just to show I did my research, I found these rings to be plausible but fitment cannot confirmed as they don't specify the ring depth;

Hastings: SC8513-020
CP-Carillo: CPN-3327

Either set of those rings will cost me $200 delivered to Australia which is rather expensive...
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Old 03-01-2017, 09:51 AM   #3
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Default Re: RSMachine 84.5mm B20 piston rings part number?

If you have the dimensions of the ring lands of the pistons, can you not provide that information to Hastings or CP-Carillo and let them advise you?
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