R/C Tech Forums - View Single Post - who makes the new RB matrix engine?
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Old 03-01-2007, 09:42 PM
  #9  
wario69
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Join Date: Feb 2007
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They are Sirio based engines. I bought 2 of them from Brooklynhobbies.com for $259.99. Probably only a places carry them now in the U.S.. Ritchie told me they go blazing fast. I havn't broken them in yet as I'm still building my mtx4 kit.

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