E
We finished our dyno testing. Our initial mountain kits will be rated at 275 hp with stock compression.
More information will be posted shortly
More information will be posted shortly
Evolution Powersports BIG CHUTE VIPER TURBO
- Thread starter Evolution Powersports
- Start date
J
275
what gas is that going to call for? Have you figured out your control? closed loop? or pre mapped for elevation changes? tell me more julio
what gas is that going to call for? Have you figured out your control? closed loop? or pre mapped for elevation changes? tell me more julio
E
E
Testing at the ears (10,000') went flawlessly. We made a few adjustments to the maps, but are extremely pleased with how the sled performed. The throttle response is unbelievable even at this altitude. There are no bogs or flat spots. The water temperatures stayed within 5 degrees no matter how long the pull.
The fuel system has been converted to a rising rate with a fuel return rather than the dead head type from Yamaha. In our experience, this provides a more consistent fuel delivery as well as allowing the injectors to flow more. This will be part of the production kit.
The sled will be in Alpine all next week for more deep powder riding and data logging boost, lambda, water temps, intake air temps, etc.
The fuel system has been converted to a rising rate with a fuel return rather than the dead head type from Yamaha. In our experience, this provides a more consistent fuel delivery as well as allowing the injectors to flow more. This will be part of the production kit.
The sled will be in Alpine all next week for more deep powder riding and data logging boost, lambda, water temps, intake air temps, etc.
Can't wait to ride this in a few days. Spy photos and video:face-icon-small-hap
Very exciting features for this kit. Been getting a lot of emails over the last 2 weeks about this kit. Everyone is stoked about the hp with stock compression on that motor.
Very exciting features for this kit. Been getting a lot of emails over the last 2 weeks about this kit. Everyone is stoked about the hp with stock compression on that motor.
Any plans for sea level testing on this kit?
E
Yes, there is a sea level version.
E
The transformation is complete.
A big thanks to B&M Fabrications for supplying us with a set of their outstanding running boards.
Also to Kevin from KMOD for our Big Chute Edition complete skid
Tomorrow we ride Alpine with some of the guys & gals from Thunderstruck.
A big thanks to B&M Fabrications for supplying us with a set of their outstanding running boards.
Also to Kevin from KMOD for our Big Chute Edition complete skid
Tomorrow we ride Alpine with some of the guys & gals from Thunderstruck.
Last edited:
Sled looks great Jim. Gonna have to throwa leg over one some day..it's just missing a real bumper... Send me over an address that I could ship this red one that is sitting here and I'll send it out ASAP.
Thanks,
Bryan.
E
Hey Bryan,
Thank you for the offer on the bumper - we will catch up when we are back in MN.
We also want to thank Paul from Fire and Ice for the Carbon Fiber Vents and Mountain Addiction for making the best (in our opinion) mountain friendly tunnel bags.
We rode Bedford today. The Viper ran flawlessly all day. We still have some clutching to refine.
More updates soon.
W
I say you should show him how the super chute is done if your 1100 has that much power.
S
Can't wait for the video of this in action!
W
What are your charge tube intake temps with this water to air, And at what boost psi ?
E
Riding today with Gene and Jay from WKMS, Cam from Turbie Performance and Kevin from Kmod. We are further refining our clutching today. Yesterday we did some good climbs - the power comes on HARD and the skis come up fairly easily. We could cat walk all day on this machine. Kevin is going lend his expertise on setting up the suspension to keep the front end in check.
What are the fuel requirements??
Im headed to the Steamboat area next week/weekend will you have a viper with the big chute near by. Woud love to check it out
T
Holy smoka,thats some big HP with stock compression!
How much boost?
Viper
I got to tell you this sled has potential, with a some minor clutch tuning this will be a sled to recon with. It comes on smooth and follows through very hard, very impressed with the overall pull that this turbo set up has. Clutches run cool, fueling was spot on, handles very agile, climbs like a full on mod sled, side hilling and down the trail with this set up is a blast also.
Looking forward to a Yamaha engine EVO sled in the future.
Had a good time, thanks to Jim, Todd, and Gene for a great day.
Kevin
I got to tell you this sled has potential, with a some minor clutch tuning this will be a sled to recon with. It comes on smooth and follows through very hard, very impressed with the overall pull that this turbo set up has. Clutches run cool, fueling was spot on, handles very agile, climbs like a full on mod sled, side hilling and down the trail with this set up is a blast also.
Looking forward to a Yamaha engine EVO sled in the future.
Had a good time, thanks to Jim, Todd, and Gene for a great day.
Kevin
J
first ride
I ran into jim and crew and got to tool around on the new viper for a bit. They were working on the clutching but it made all the power they claim and fit of everything was as expected from evo, perfect. julio
I ran into jim and crew and got to tool around on the new viper for a bit. They were working on the clutching but it made all the power they claim and fit of everything was as expected from evo, perfect. julio
I see action cams on the pics, but no video, would be nice to listen to it, and see it in action.
Skickat från min YP-G70 via Tapatalk 2
Skickat från min YP-G70 via Tapatalk 2
Similar threads
