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  1. #1
    RC poster
    Join Date
    Feb 2012
    Posts
    13

    HPI F4.6 replacing TRX 3.3

    Hi, need some guidance and advise here. can i replace my Slayer TRX 3.3 engine with a HPI F4.6 ? ( taken from a HPI Savage )?. One of my friend being too generous and gave me his 3 month old HPI F4.6 engine. So instead of just let it sits on the shelf, i'm thinking of fixing it on my Slayer but need to know what is the modification or conversion kit needed? It will be great if some one can explain or redirect me to a thread / forum / post regarding this and some pics also will be just nice. Thanks

  2. #2
    RC Qualifier
    Join Date
    Apr 2011
    Location
    EM SO.CAL
    Posts
    456
    U can use it if u run it with a traxxas big block kit but u would need a bump start as the back plate (roto start or pull start) will not clear the a arm. Or use the new era big block kit and that will let u use any big block engine. I have never tryed that engine but have played around with a few big blocks to try and make them work. Im sure theres a few clutch bell and spur gear things u would have to work out also.

  3. #3
    RC poster
    Join Date
    Feb 2012
    Posts
    13
    Thanks emraiders81 for the useful info..

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