put 5.5g rollers in my bike, barely pushing 40 now

Discussion in 'The Workshop' started by Sean, Sep 16, 2009.

  1. Sean

    Sean New Member

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    65
    was doing 52 clock speed with 8.5's in, now ive put 5.5's in, it accelerates nicely to about 20 then just barely accelerates, gets to about 40 eventually,, i know im not gonna get 50 with the lighter rollers but i think its my standard exhaust, am i correct? if so, would a gianelli sports pipe work better with the lighter rollers? or a leo vince? or technigas? o_O got all 3, so which one do you think would work better? and how much should i upjet by? cheers,

    peugeot vivacity btw,
     
    Sean, Sep 16, 2009
    #1
  2. willoughby172

    willoughby172 Member

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    156
    every1 seems to love puting 5.5 rollers does not mean it will run quick because u got them

    as 4 the pipe the gianelli is a gd pipe leo vince zx and tt r gd dnt use the technigas as it is shit
     
    willoughby172, Sep 16, 2009
    #2
  3. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

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    go for half and half.... sounds liek its revving but not pushing the rollers out (too light) rather than how it was befor, not revving (too heavy) you now have a comparesen to work from, keep adding weight till the revs drop off.
     
    MiNoR cOnFuSiOn, Sep 16, 2009
    #3
  4. Sean

    Sean New Member

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    65
    yeah it seems to be revving really high, will try the gianelli or leo vince with the 5.5's then if its the same, il change them again,
     
    Sean, Sep 16, 2009
    #4
  5. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

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    gianelli pipe all the way... stock pipe makes fuck all power at higher revs. thats how they save you fuel (by making power at low revs) try that or the leo tbh... but ye, settle on a pipe then just play wiht the rollers till there correct. can drill out stock rollers to make them lighter
     
    MiNoR cOnFuSiOn, Sep 16, 2009
    #5
  6. Sean

    Sean New Member

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    65
    never considered drilling rollers, but i suppose it'd be a good idea considering they dont have to be smooth on the inside,

    oh yeah what jet should i put in? idk whats in atm, but im assuming its standard, by how much should i up it by for the gianelli?
     
    Sean, Sep 16, 2009
    #6
  7. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

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    a pipe and derestriuction should usually need 5 or 6 bigger than stock.. but read the guide, try them and see for yourself.. start a little bigger than you need, set the rollers/clutch springs up perfectly then trim the jet (again, all in the guide section)
     
    MiNoR cOnFuSiOn, Sep 17, 2009
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  8. Sean

    Sean New Member

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    65
    wtf... i took my carb off etc to upjet, mine is a standard 72 jet, i open my jet pack then realise the pack is like 50-72..... ffs haha
     
    Sean, Oct 4, 2009
    #8
  9. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

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    ahhh soz thought it was a piaggio... fuck peugots :confused:

    better get sopme more jets then
     
    MiNoR cOnFuSiOn, Oct 7, 2009
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  10. JonCarter

    JonCarter New Member

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    Runner 125VX

    WTF thats a rather large jet why are they different from the piaggio engines :confused:cratch: i thought they was all the same or is the Peugeots carb smaller :confused:cratch:
     
    JonCarter, Oct 20, 2009
    #10
  11. MiNoR cOnFuSiOn

    MiNoR cOnFuSiOn Administrator Staff Member

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    doesent matter about the carb.. lots of engines just run bigger jets. its down to the vacumm through the carb not its size.. hence the piaggio's all use smaller jets, there just better engines and produce higher vacumm/afr (air flow rate) through the carb...

    again.. try somwhere in the middle.. so around 6.7g
     
    MiNoR cOnFuSiOn, Oct 21, 2009
    #11
  12. monty9120

    monty9120 Active Member

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    i ran 7 gram rollers in my 50, try them 5.5 are far too light in a pug ;)
     
    monty9120, Oct 21, 2009
    #12

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