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Old 09-23-2006 | 05:43 PM
  #647  
going4#1
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Joined: Aug 2005
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Originally Posted by Racing4Evo
The two engines are identical except for the sleeve material. The R-01 is an aluminum sleeve (AAC) just like the old 421P from Novarossi. For some reason or another(longevity maybe) they discontinued the R-01. The R-02 is the 7 port version. Get an R-03 if you have a choice.

*I just checked the website and it says differently. BUT, going on my past experience and watching the JP motors that others around me have used I stand by my statement.

I just got an R03 with a total of 8 tanks through it. Do you think I should swap the conrod now? Will the R7 work best with the R-03?

Thanks for any advice.
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