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+4mm Stroker Crank (long Rod)


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Its quite possible your right about your pipes but if its noticably rich to the ear in the mid, I would go there first and see what happens. According to your last chart, the spacers created lag if anything but thats not saying they will on this engine. Different pipes, carbs, reeds etc. will all respond differently with each other and there really isnt a bible to go by especially when you throw porting into the equation. Seems you are going in the right direction though and have the tools to maximize your set-up...keep up the good work...Jim

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The stock air box can't go back unless your suggesting to move the coolant bottle??

or get rid of the toolbox.....my intake tubes are an inch and a half, i cut the long ones jim sent down to make it work, my bike has no flat spots anywhere in the power band...

Edited by Blue Duece
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Rod, I'm running the reeds on "high" tension.....I haven't tried low tension. How do you change it?? Duece, thanks for the ideas, I take it that you bent the arms down so you could slide the air box back...Do you zippy tie the box there. What holds it in place besides the carbs? I cut my intake tubes also so my airbox fits tight, but works...I like your mod though, I'll be able to run spacers...I owe you.. :cheers:

Edited by Banchetta
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Rod, I'm running the reeds on "high" tension.....I haven't tried low tension. How do you change it?? Duece, thanks for the ideas, I take it that you bent the arms down so you could slide the air box back...Do you zippy tie the box there. What holds it in place besides the carbs?  I cut my intake tubes also so my airbox fits tight, but works...I like your mod though, I'll be able to run spacers...I owe you.. :cheers:

try them deltas on low banch that could be the ticket, there's a high low setting on them, deltas web site might have a pic?....... on my airbox i cut the tool box out and as you know the bottle sits on pins on the end of the air box.... and yes, i zip tied it to the frame and on the back where you see the deck plastics overlap the bottle slightly.... in the pic you see the bottle zip tied, but ive since drove a selftapping screw through the deck and into the bottle to secure it, i no longer have a tool box but.......it did come out nice and maintained my air box..... some friends thought i should go dual K&N's but man without the box theres a large dust issue......and i cut the little metal arms off with a small die grinder(my tribute to american chopper) the zips hold real nice, jim sent me these big long tubes with my setup and i just couldnt find a way to scoot my air box back 3.5 inches that was just way to much and DID NOT want to wack my box open, so close to my rear tires....... and in the fine dust i ride in........ so what i did was put the box where i wanted it and then cut the connector tubes accordingly from my air box to carbs and it turned out to be an inch and a half, i am wondering how you got such a low hp reading out of a stroked ported setup though....you would think youd be at 75hp or better?........good luck guy im sure you will iron it out, and man youve givin me so many great tips from suspension to chassis and jetting, im honered to finally be of some help to you.......jim :cheers:

Edited by Blue Duece
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Great info Deuce, I'm gonna do that..Are you running spacers?? I'll also try the low tension settings on the v-forces...Its supposed to rain all day tomorrow, so its test and tuning time.....The hp might seem low, but the torque is up to 41lbs....I'm also only turning 8800 rpms...HP goes w/ rpms. Less rpms will create less hp....My intentions were built on torque and not hp, but the quest goes on.... :D Once I try every option out there, then it'll be another set of pipes...This motor likes to breathe, so I WILL get my most potential out of it.....I'm thinking about getting some Pt high rev headers..... :o

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Banchetta, To change your reed settings on the Vforce , you just have to remove the screws in the plate that holds the reeds down ,and turn it over , one side says"high" and the other side says "low" , the plate has a ridge bent into the metal and it changes the tension when you turn it over.

 

I have not tried mine on low setting , but I am curious what you come up with .

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