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11-05-2009, 05:04 PM
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#1 (permalink) |
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Junior Member
Join Date: Nov 2009
Last Online: 11-18-2009 09:35 AM
Location: Ottawa, Canada
My Ride: 2003 VFR 800
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Extra HP
I just purchased a 2003 VFR Vtec and I love the feel of it although I would like to try and increase the power on the lower rpm range (before that fabulous Vtec kick). Is this possible?, or is it possible to lower the point at which the vtec kicks in?
I am new to the VFR and think this is the perfect balance of comfort and sport. |
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11-05-2009, 05:30 PM
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#2 (permalink) |
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Senior Member
Join Date: Feb 2009
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My Ride: 2007 Honda VFR800 .... 1993 CB750 NightHawk
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a power commander with a custom tune will add a lot of mid range horse power. and it will also fill in the dip in the vtec transition...
this plus a 2 up or 1 down 2 up sprocket kit sounds like what your looking for too...
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+ ZG ST, Heli's, Fender Eliminator, Throttlemeisser, Triangle Flip+Preload, BMC Filter. 200*Fan Switch, VTR Fan Blade - Snorkel, Flapper, Velocity Stacks. Pair Valves, and Evap Canister. Rounded off Entries to Throttle Bodies Motad Header and Two Brothers Exhaust Fully heat wrapped and sealed in high temp black Power Commander 3 USB & O2 Eliminators Custom Tune Done By AMR SUPERBIKES 
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| The Following User Says Thank You to CandyRedRC46 For This Useful Post: | D-rider (11-05-2009) |
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11-05-2009, 05:50 PM
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#3 (permalink) |
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I must say that the sprocket change does make a big difference in the fun level .
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| The Following User Says Thank You to TOE CUTTER For This Useful Post: | D-rider (11-06-2009) |
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11-05-2009, 10:30 PM
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#4 (permalink) |
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Senior Member
Join Date: May 2008
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Location: Denver Co
My Ride: '08 vfr 800 w/2 bros m2 titanium,k&n,pcIII w/cust. dynoed mapping,-1f gearing
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The power commander with a custom map will be bring back 5 or 6 mid-range HP that went missing due to some shady OEM mapping. If you goto a -1 front sprocket, which I highly recommend, you'll redistribute some power back to the low and mid. No HP gain here, but more umph and a smoother VTEC change over. If that still isn't enough than add a +2 rear. Keep in mind that the lower you gear the bike you'll be loosing increasing amounts of top speed and tach range. Also a speedo healer will be needed with the gearing change due to inaccurate speed ( reads higher than actuall ) and mileage ( higher than actuall ).
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| The Following User Says Thank You to havcar For This Useful Post: | D-rider (11-06-2009) |
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