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Sidewinder tuned to 14 lbs roughly 250 hp threw code sd-24. Runs fine. Any ideas?

2011 apex. Got back from a trip 2 days ago. Sat on the trailer outside in - temps. Went to unload and fuel pump cycles. Everything lights up. Hit to start it just clicks. Battery new last year. Ideas?

I see the compression of 9:1. timing must be a little behind the viper also i would assume. so do you think this sidewinder is capable of 250 hp with an ECU flash. then gears and 135 mph!

been noticing some funny stuff with my AFR. when i first start up and go out for the day it seems lean. and runs lean until i shut it off and restart it then its right on. if i just let it warm up, shut off, and restart it, its fine. then sometimes when i stop for food or dirks and come out and...

this is the intake i made for my hurricane 190 kit to move the intake away from the exhaust. i think i should get some frog skin to wrap the filter in now that it sucks outside air. also thinking of adding a vent in the hood where the intake is to allow more outside air in right where the filter...

i have an idea for my intake and looking for input. hurricane 190 turbo with intercooler. the intake currently is next to the exhaust which obviously makes for higher intake temps. i want to keep the intake under the hood for cosmetic reasons. the idea is to make an air box under the intercooler...

When looking for a turbo we all get it down to 2 but then it is hard. so lets make it easy and pick 2. pick the 2 you feel best fit the viper. install, power, cost, reliability, and service are all factors to consider. For turboed guys if you did it all over again would you chose different?

finally got some time to get everything back together.(new track 1.6 ice cobra, new gears 22-41, added intercooler, oil changed, fluids checked, rewired helmet visor power into switched relay) and washed, now all we need is some snow. just had to take some pics. and a little rip around the yard.

the local bar is holding an ice drag on lake wissota this coming weekend. not much snow to ride so if anyone wants to get out and run a little bit. i will get more details if anyone is interested.

i have a 2014 ltx with a hurricane turbo. been loosing boost slowly. only on top. was always at 5lbs at 8500 and up. didnt notice much just a power loss on top end. now i never see 5lbs even lugging at 8800. when someone else is riding it i can tell it sounds different than before. i cover the...

just curious as how many high mileage 4 strokes are out there. I have 1800 on the viper. dads apex has 5600. did meet a guy with a RX1 that was about to turn 33,000.

it would be nice to start a thread where people can look to see all of the parts we are putting on our sleds. parts, where you got them, part numbers, price white and blue hand guards power madd with billet mounts. roxspeedfx.com out of stock now $59.95 white low windshield from cat. p.n...

wondering if there is a yamacharger in the works for the viper. would like to see a crank driven yamacharger (like the apex) for the viper. less boost than a turbo but steady like a supercharger. and they are simple and maintenance free. no gauges, or wiring. would need a different exhaust...

just got the sled all back together and put the first 3 miles on it. took it easy but i am impressed with the ride and handling. arctic cat 7000 stock white windshield makes it look great. hope you like the pics.

anyone riding the new viper notice snow being thrown up from the rear of the track. are the tunnel flares needed on all size tracks? i rode my buddies 1100t cat with the 144 and it threw snow right into my back. sure track length matters.