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Thread: 2017 OS Speed R2103 3.5cc Nitro On Road Engine
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Old 09-06-2022 | 03:07 AM
  #98  
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VS_Rody
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Joined: Jun 2014
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From: Carces FRANCE
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Originally Posted by magnushedqvist
What would be the best current option for piston and sleeve for this engine? I run 16% fuel in europe. Is it the eurospec or just a stock 2103? I tried a 2104 but lets just forget about that.
The Eurospec sleeve is a possibility but due to the low crankshaft timing of the R2103 you might not get all the advantage out of it.
So I suggest you stay with the original P/S

What happened with the R2104 sleeve?
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