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| vf3 deffently |
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| everyone has there own opinion on this,ive tried the duncan pyramid valve,vforce2, and boyesens on stock valve.right now i have a rad valve in it. the duncan pyramid seemed to have the best low to mid,the vforce2 was an improvement on top end,boyesens on stock cage are a little better than stock petals,i think i like the rad valve best all around.these power gains are noticable but not any big hp gains to be had. i think the vforce3 is adjustable/??. every application is different depending on how your R is tuned. i run a lrd adjustable pipe,mid range porting 220 psi compression,38mm roundslide carby. |
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| I say "no reeds", the lighter the better....j/k
__________________ 1990 Lt500r QUADZILLA Nuff said... |
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| vf3s had foe 3 years just replaced the reeds great part for power and it will last
__________________ 1999 yamaha blaster/.020 bored/wiseco pro lite piston/lrd exhaust/vforce3/3mm stroker stuffer crank/14 tooth front spocket/tusk clutch/flotek ported and polished cylinder/shaved head/lighten flywheel/rounded shiftstar/35mm kehium carb and filter/douglus red label rear rims/perellii race rail tires/oil injector block off/protaper bars/powermadd handguards/black maier plastics and hood/dg grab bar/dg bumper/dg nerf bars/pro armor killswitch |
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| DUNCAN ALL THE WAY!!! The throttle response is exellent.I've run em all, on the same motors and for sure the duncan is the best and last forever!They are pricy is the only drawback,but well worth it!! IMHO Im sure there will be others with different opnions,and different types of riding will affect your choice.On my drag bikes its duncan all the way,and on my play/dune bikes its the boyeseen cages!! Im running a set of V-force 3's on my wifes trx and they are fine right now,but just are not as crisp on the throttle as the others.I would use the boyeseen cage with a stock carb if it were me!Anyway,good luck on what ever you choose.
__________________ 1987 TRX ESR big bore-stroked on alky 1986 ATC 250r with 330 pro-x 2001 DS 650 R.W. kit-Sold that 4poke,but it was kinda fast!!lol 85 atc underway with 350 stroker motor being built now!! |
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| every dyno chart that ive seen shows the vforce out performing the duncan cage... even better...have the stock cage ported then install the boyesen reed petals.
__________________ E2S Moderator Special thanks to RJATV! Visit rjatv.com for all of your atv parts! Support the sand movement! Click here to check out the new duner hangout! ~ www.dunercentral.com ~ |
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| Never used a duncan cage but have used a rad valve,vf2's,vf'3's.I like the vf3's the best so far. |
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| aaaaaaaaaaaaaaaa we want the force. gotta have that force..
__________________ 1997 KTM 300 MXC brand new motor. FMF Fatty Pipe. Ohlins rear shock and forks. fmf q scilencer, dicks racing carb mods, 2007 powervalve adjusting cover, baarkbusters hand guards, all orignal plastics still look brand new. 225 psi of compression,silkolene in the gas and maxima in the trans, rentahal bars and sprockets and d.i.d 520 exmrt x ring chain, al ste up for xc racing and mx. lthe most radical port and polish job i could get, ifes great when you have a 300 cc 2 stroke and ur blowing away 500s and 450 out on the track. WWW.BANDONRENTS.COM sourceautomoyive.biz My fellow americans it is due time we start the 2 stroke revolution........................................ ............ |
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| I've read that duncans cages flow LESS than stock. Never seen anything by duncan that impressed me, and Ive ridden with 4 different bikes built by them. In a 250r, Vforce for all out power, boysen for smooth all around power
__________________ 86 Honda 310R Power Valve Paul Turner Eliminator pipe 39mm Sudco racing carb 215psi 110 octane 310esr p/v Ported by Neil at C-Leigh Racing +4 Durablue axle +2 Burgard A-arms 87 Quadzilla Lonestar custom swingarm Lonestar axecaliber axle Lonestar steering stem Powder coated frame Custom Paint 42.5mm mikuni Alky carb (soon to be 48mm Packard Lectron) Marvin Shaw suspension LOTS OF CHROME Trinity Drag port ( I know its Trinity, but do you want to race it ?) CPI oof drag pipe am I forgetting anything? hmmmm ![]() ![]() Never argue with an idiot. They'll just drag you down to their level, and beat you with experience! |
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