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Pete. |
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Pete. Super Spammer
Joined: 22 Aug 2006 Karma :
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Posted: 21:54 - 09 Nov 2017 Post subject: |
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Saying that cast iron liner is just as good as a hard plated ally cylinder is like saying and air cooled engine is just as good as a liquid cooled one.
Nikasil is hard - very hard. Hardness means lower friction and lower friction means lower losses. Aluminium has more than 2.5 times the thermal conductivity of iron so the more heat you can carry away the more heat - and power - you can produce in the engine. Big-power bike engine builders have found this time and again, nikasil barrels take some supreme abuse before they let go. If you're smearing nikasil barrels on a crosser it's probably more of a piston problem than a cylinder one. The barrels should out-last the pistons many times over. ____________________ a.k.a 'Geri'
132.9mph off and walked away. Gear is good, gear is good, gear is very very good |
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monkeyman |
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monkeyman Scooby Slapper
Joined: 26 Jan 2004 Karma :
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Pete. |
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Pete. Super Spammer
Joined: 22 Aug 2006 Karma :
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Posted: 23:42 - 09 Nov 2017 Post subject: |
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Do you have any non-stupid questions to ask? If you're going to call me out on something I've said at least base it on something I've said instead of throwing leading questions at me based on other people's input. I've made no assertions on power increase anywhere here. My comments have been on frictional losses and thermal transfer. ____________________ a.k.a 'Geri'
132.9mph off and walked away. Gear is good, gear is good, gear is very very good |
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stevo as b4 |
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stevo as b4 World Chat Champion
Joined: 17 Jul 2003 Karma :
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monkeyman |
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monkeyman Scooby Slapper
Joined: 26 Jan 2004 Karma :
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arry |
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arry Super Spammer
Joined: 03 Jan 2009 Karma :
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sickpup |
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sickpup Old Timer
Joined: 21 Apr 2004 Karma :
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Old Thread Alert!
The last post was made 6 years, 167 days ago. Instead of replying here, would creating a new thread be more useful? |
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