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What are the best mods for handling and weight loss for the viper?
Best handling mods
- Thread starter apex 9420t
- Start date
Are you going turbo or naturally aspirated?
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What is the most real live Hp that you guys can realisticaly get out of the normaly aspirated viper engines without seriously tearing into the engine. Had lots of past experience with the Nytros, just not up to date on anything since the viper.
M
Lightweight battery = 12 lb loss
Skinz seat = 5 lbs loss
Headlight/hood mod = 9 lbs loss i made my own carbon piece up
Stock muffler is heavy easy weight loss there
Handling.. I like the polaris skis , play with front skid shock compression setting and i run skid in the upper holes in tunnel front and rear
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No issues with the battery? How cold out is it usually where you ride? I've heard they don't like the really cold temps.
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Trail Vipers came with 135 pound front skid shock spring, very light spring as trail machines need front end weight. BUT, for reasons unknown 2014 and 2015 XTX and MTX Vipers came with a 110 pound front skid shock spring...unbelievable. Should have been a 160 or even a 180.
Call Zbroz (or your favorite vendor) for a 160 pound spring and that nose heavy Viper will dance like an M8.
Call Zbroz (or your favorite vendor) for a 160 pound spring and that nose heavy Viper will dance like an M8.
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Air box mod, aftermarket muffler and EVO ECU flash gets 171 horsepower on the dyno. Air box mod and can for high altitude (no fuel controller) gets around 150 to 155 horsepower. Air box mod used in dyno test listed on facebook page "Yamaha Viper Tech"
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Mpi turbo190 hp. Stingray 300 lbs ready to ride should I look for 180 spring? Grippers are the ski to get? What about the 16 front end and this steering mod wyoboy keeps barking about?
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160 or 180 your call, Cat dealer in Wyoming is putting 180 springs in M8's so it is being done. In my opinion this chassis does not need an aggressive ski, I tried the Powder Pro and took them off after one ride. I have not ridden the 16 front end so I cannot answer, and as far as steering mods ride one first before changing or at least only a mod easily undone (like the spring change)
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Got about 300 miles last year so have ridden a little. Just looking for best bang for the buck mods for handling and weight loss. Do have the mpi can. Thinking new skis and 36 front end and maybe heavier spring now. Any recommendations on front end?
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171? I thought I read 160. What price range are you looking at to see 170?
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Don't you need to buy new shocks with barcode kit?
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Don't you need to get new shocks for barcode kit?
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can and EVO flash, and air box mod like the one you took off your sled.
Our kit will work with the 38" and 40" wide front end stock shocks
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According to the dyno graph I'm looking at air box mod, muffler, header, "fueling" PC5 i Guess, +timing, 9800 rpm, 91 octane tune, will give you 160.4 horsepower.
Quite the expensive set up. Not to mention trying to figure out the clutching.
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IceAge makes a rear swing arm similar to T-motion. I bet that would be a nice addition.
9800RPM!!! Like to see ur belt handle that RPM for very long...LOL
Old Nytros and new Vipers... header, airbox mod, can, PC5 will get u 145HP @ 9000 rpm....maybe 150 if ur lucky. That said, torque comes up throughout the powerband so it's a very different engine with these mods IMO.
Beyond that...Turbo is much easier and more reliable that trying to run belts at 9800.....
My 0.02
OTM
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