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PostPosted: Fri Aug 22, 2014 6:38 am 
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Joined: Mon Nov 25, 2013 1:16 pm
Posts: 120
Location: Perth, Western Australia
Country: Australia
Bikes owned: T250, GS550, TL1000S, T500 racer
I had intended using Wiseco's in the TR500 replica I'm building up, but have got a couple of opinions that they are not great pistons these days. Anyone got experience with them in a race motor?


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PostPosted: Fri Aug 22, 2014 2:16 pm 
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Joined: Mon Mar 05, 2012 1:22 pm
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Location: Wales UK
Country: Wales
Bikes owned: RG250 GT750L GT750 DRAG seelyt500 tr500MK3
They are still better than oem pistons.
A lot of racers are now using these.
http://www.wossnerpistons.com/


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PostPosted: Mon Jan 19, 2015 2:47 pm 
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Joined: Tue Oct 09, 2012 1:52 pm
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Country: uk
Bikes owned: T500X2 GT500 GS750 GS500/4 KAWASAKI A1 GT250
it rather depends on how hard your going to go with the engine, I use mitaka pistons for any development and these days use wossner pistons as they are better than wiseco these days, had a few problems with ring pins retracting on wiseco and rings popping into ports as a result, quite messy.


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PostPosted: Tue Jan 20, 2015 5:46 am 
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Joined: Mon Nov 25, 2013 1:16 pm
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Location: Perth, Western Australia
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Bikes owned: T250, GS550, TL1000S, T500 racer
Mmm, that sounds a bit worrying! Wiseco have actually now come on board as a part sponsor of the team and are making up a special batch of different design pistons for us so hopefully they will be OK :|


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PostPosted: Thu Jan 22, 2015 9:59 am 
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Joined: Tue Oct 09, 2012 1:52 pm
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Country: uk
Bikes owned: T500X2 GT500 GS750 GS500/4 KAWASAKI A1 GT250
whats the difference out of interest chris, is this wiseco USA or Holland?


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PostPosted: Thu Jan 22, 2015 5:19 pm 
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Joined: Mon Nov 25, 2013 1:16 pm
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Location: Perth, Western Australia
Country: Australia
Bikes owned: T250, GS550, TL1000S, T500 racer
Pete O'Dell wrote:
whats the difference out of interest chris, is this wiseco USA or Holland?

It's USA, where our design engineer is based. Pistons have different ring configuration, skirt height and boost port.


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