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Thread: whats the best big bore kit?

  1. #1
    Join Date
    Jul 2001
    Location
    Gbg, PA
    Posts
    185

    whats the best big bore kit?

    I have a 300ex what would be the best big bore kit for it? do the give much more power/speed??

  2. #2
    Join Date
    Jun 2001
    Location
    McClure,PA,USA
    Posts
    509
    i'd go 330 i hear they can smoke a stock 400 in a drag race..that would be cool because then you'd have reverse goto

    www.powroll.com
    or www.sparksracing.com

    there are many options out and it is up to you on how far you wanna go lata toby
    06 YFZ 450..all white... LRD pipe, jet kit, lid removed, cam mod

    LT JB front end and Ohlins shocks coming before june.

  3. #3
    Guest
    I have the 329cc big bore kit from http://www.powroll.com/ it adds a ton of torque to the bike and elimanates a lot of shifting on the trails. As far as being able to beat the 400, I think the 400 might still have more top end . A lot depends on your gear ratios and tire size .

  4. #4
    Guest
    id say the 330 for trail riding and reliability but if you also want a drag mototr to put in for some draggin some days buy another engine and get it bored to 410 i hear those things do like 7 1\2 seconds on the 1\8 mile but they arent as reliable as the 330

  5. #5
    Join Date
    Jul 2001
    Location
    Gbg, PA
    Posts
    185

    how much did ur 330 bore kit cost?

    how much did it cost?and have u had any problems with it? does it give u anymore top end?

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