Plated cylinders

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Gardner
Diana
Posts: 61
Joined: Thu Jul 17, 2008 6:09 am
Location: Davenport, Ia

Plated cylinders

Post by Gardner » Wed Feb 06, 2019 9:46 am

Thought I would give plated cylinders a try. Wiseco says the rings that come with 87mm pistons will work fine.
Millennium Technologies in Plymouth Wisconsin does a proprietary Nickel Silicon Carbide (NSC) cylinder plating.
Should last a looong time.
https://www.millennium-tech.net/index.php
$255.00 per cylinder
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1978 SD Darmah
1979 SSD Darmah
1981 900SS
2017 Desert Sled
1982 Bimota HB2

wdietz186
Cagiva Alazzura
Posts: 703
Joined: Sun Sep 10, 2006 5:40 pm

Re: Plated cylinders

Post by wdietz186 » Wed Feb 06, 2019 6:15 pm

I don't know if there is any advantage to plating an iron sleeve, all of the plated cylinders I've ever seen have been aluminum. I don't think heat transfer would be improved as the sleeve is still shrunk into the cylinder barrel. The bore would certainly last longer but I don't think anyone uses their bevel hard enough for bore wear to be an issue.

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Gardner
Diana
Posts: 61
Joined: Thu Jul 17, 2008 6:09 am
Location: Davenport, Ia

Re: Plated cylinders

Post by Gardner » Wed Feb 06, 2019 7:14 pm

True, no improvement in heat transfer or weight savings.
But I did put over 6000 miles on my 900SS last summer and plan on more this year :-D
I run filters on my carbs now but maybe plated cylinders would last a bit longer than cast iron if I didn't?
1978 SD Darmah
1979 SSD Darmah
1981 900SS
2017 Desert Sled
1982 Bimota HB2

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geodoc
750 GT
Posts: 178
Joined: Thu Jul 18, 2013 3:57 pm

Re: Plated cylinders

Post by geodoc » Wed Feb 06, 2019 11:16 pm

Most aircraft cylinders are Nickel Silicon Carbide plated on steel bores (not sleeves, but cylinders made from one piece). I had it done at Millenium too and gotten great results, mostly in longevity and reduced fuel consumption. I see that they will do aluminum sleeves for bikes too.

wdietz186 wrote:
Wed Feb 06, 2019 6:15 pm
I don't know if there is any advantage to plating an iron sleeve, all of the plated cylinders I've ever seen have been aluminum. I don't think heat transfer would be improved as the sleeve is still shrunk into the cylinder barrel. The bore would certainly last longer but I don't think anyone uses their bevel hard enough for bore wear to be an issue.

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