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Registered
Join Date: Feb 2005
Location: California
Posts: 724
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Lightening wrist pins
Anybody have advice on how much can be safely taken out of 2.0S wrist pins?
I'll be using Mahle 80.5mm 67S pistons. I have a full machine shop available so don't hold back on suggestions. Engine will be a hot street, I think I just have a serious case of while-i'm-in'there-itis. andy |
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09-12-2012, 04:46 PM
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Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,500
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I have a set of light pins, 57mm long and 63 grams.
Under for sale with this header and pictures Bruce Light weight wrist pins |
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09-12-2012, 05:02 PM
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Join Date: Feb 2005
Location: California
Posts: 724
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No advice?
andy |
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09-20-2012, 09:36 PM
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I tapered the pins of my 930 Turbo like this with no issue so far (10'000km on street)
Tapering only within the area where piston is, at rod is still the stock diameter. Did this to reduce oscillating weight and because the piston seem to be weaker at this area I decided to taper like seen on other engines The red area is what I machined off: Sorry, too small pic. See better one below BTW: Use of HSS is useless here as pins are made of very high strenght steel
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Roland 930 Turbo '81 Too many modifications to list Last edited by proffighter; 09-21-2012 at 12:32 AM.. |
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09-21-2012, 12:29 AM
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Roland 930 Turbo '81 Too many modifications to list |
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09-21-2012, 12:33 AM
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