My question is: go with the short or long velocity stacks?what is the bennefits of both?have anyone use anything of these?and last question which one of them, hrc, factory pro, hrp, euro-racing, ten kate or venturi system?
have you dyno the bike before and after velocity stacks installed?if yes can you post the dyno?do you have any photos of the stacks?photos that they have on the site are not very good and i can not understand if they are alloy or fiber.
No dyno runs after but before 101hp and 78 ft lbs. No remapping needed per factory pro website. They were short and look like plastic it helps your midrange and has a nice tone
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My question is: go with the short or long velocity stacks?what is the bennefits of both?have anyone use anything of these?and last question which one of them, hrc, factory pro, hrp, euro-racing, ten kate or venturi system?
i have the same qwestion,
i want to order the velocity stacks to , but it will be next winter and than i wil get my engine remapped per cilinder with the rapid bike racing module
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building and racing in 2013
and 2014 full power
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My question is: go with the short or long velocity stacks?what is the bennefits of both?have anyone use anything of these?and last question which one of them, hrc, factory pro, hrp, euro-racing, ten kate or venturi system?
if you want cheap v-stacks you can just buy 2 sets of OEM v-stacks then cut them in half & use the shorter ones for more top end & the longer ones for more midrange. this is what i did on my track bike but i haven't dyno'd it yet.
those HRC v-stacks are overpriced, $448 for the short & $958 for the long stack (each) is ridiculous, are they made of precious metals?
now if i had to choose i'd get the stack with the biggest radius as it usually flow air the smoothest, the FP & Euro Racing stacks get my vote but bang for the buck the modded OEM stacks are my first choice since they're so cheap new.
if you want cheap v-stacks you can just buy 2 sets of OEM v-stacks then cut them in half & use the shorter ones for more top end & the longer ones for more midrange. this is what i did on my track bike but i haven't dyno'd it yet.
those HRC v-stacks are overpriced, $448 for the short & $958 for the long stack (each) is ridiculous, are they made of precious metals?
now if i had to choose i'd get the stack with the biggest radius as it usually flow air the smoothest, the FP & Euro Racing stacks get my vote but bang for the buck the modded OEM stacks are my first choice since they're so cheap new.
No dyno runs after but before 101hp and 78 ft lbs. No remapping needed per factory pro website. They were short and look like plastic it helps your midrange and has a nice tone
wow, 78 ft/lb of torque is liter bike territory, even the most prepped 600 engines in world supersport rarely go over 50 ft/lb. must be a typo. :D
Just a word of warning on factory pro stacks. I ordered them for my bike a while ago. They were on back order and I waited 8 months. I finally called to cancel and the guy at factory pro had no idea how I could get my money back because “they don’t have anything to do with that”. They gave me the number of the guy who “handles the money” and after three weeks of leaving messages I finally had my money back.
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08'RR
Akra Evo TI - Bazzaz ZfiTc - Acumen Gear Indicator - Yoyo Stay - Keyless Mod - Michelin Power Cup - HRC overflow - ECUnleashed
A picture is worth a thousand words... Idk I thought the same thing when I saw it
Bahahaha, dude, something went wrong.
30 ft-lbs of torque in less than 1,000 RPM would be hilarious to see.
My 600RR got a pretty hefty tune when I went to an ex-AMA racing team manager for some work. I entered with 108hp and 44.7 ftlbs, left with 115hp and 48 ftlbs, and THAT was a huge deal. 30 ftlbs in 1,000RPM is nearly like the power on a 500cc two stroke GP bike coming on!!
30 ft-lbs of torque in less than 1,000 RPM would be hilarious to see.
My 600RR got a pretty hefty tune when I went to an ex-AMA racing team manager for some work. I entered with 108hp and 44.7 ftlbs, left with 115hp and 48 ftlbs, and THAT was a huge deal. 30 ftlbs in 1,000RPM is nearly like the power on a 500cc two stroke GP bike coming on!!
The bottom is speed not RPM, but agreed something happened to give a false reading.
