Murse
Lifetime Member
- Joined
- Sep 7, 2012
- Messages
- 1,047
- Age
- 37
- Location
- Cornwall, Ontario, Canada
- Country
- Canada
- Snowmobile
- 2011 Yamaha Apex Std Red
How are you guys with the kit installed finding it? Goes well? If it is anything like My Apex Kit it is a must.
RXVIPER
Pro
- Joined
- Mar 4, 2010
- Messages
- 191
- Location
- Shelburne ,Ont
- Country
- Canada
- Snowmobile
- 2014 SR Viper LTX
2003 RX-1
My brother got the kit for his sr viper and it works awesome, I will be getting one also.
Apex2006
TY 4 Stroke Guru
- Joined
- Oct 26, 2009
- Messages
- 910
- Location
- McHenry, IL
- Country
- USA
- Snowmobile
- Yamaha Sidewinder SRX-LE 2019
Yamaha Sidewinder XTX 141 2017
Yamaha Viper XTX 2015
Yamaha Sno Scoot 2018
Ski-Doo Renegade XRS 850 2020
Love mine, great holeshot, stronger "upshift"
sk-rx1
TY 4 Stroke Guru
Can you explain what you mean by stronger upshift? Do you think it had any effect on gas mileage? Still on the fence.
Apex2006
TY 4 Stroke Guru
- Joined
- Oct 26, 2009
- Messages
- 910
- Location
- McHenry, IL
- Country
- USA
- Snowmobile
- Yamaha Sidewinder SRX-LE 2019
Yamaha Sidewinder XTX 141 2017
Yamaha Viper XTX 2015
Yamaha Sno Scoot 2018
Ski-Doo Renegade XRS 850 2020
Pulls harder in the secondary. I don't worry too much about the gas mileage if I can get better performance LOL! Miss my Turbo on the Nytro! Next year......
What are your max RPMs with that kit?
- Joined
- Apr 17, 2003
- Messages
- 5,414
- Location
- Menno, SD
- Website
- www.ulmerracing.com
- Country
- USA
- Snowmobile
- 2014 Yamaha SR Viper LTX, 2014 Yamaha SR Viper RTX SE, 2015 Yamaha SR Viper MTX SE 162 (turbo), 2015 Yamaha SR Viper MTX SE 153
- LOCATION
- Menno, SD
- WEBSITE
- www.ulmerracing.com
Rpm is easily adjusted with the weights if needed. Generally looking for 8800 rpm on top end with a max of 9000 if stock exhaust, etc.
Murse
Lifetime Member
- Joined
- Sep 7, 2012
- Messages
- 1,047
- Age
- 37
- Location
- Cornwall, Ontario, Canada
- Country
- Canada
- Snowmobile
- 2011 Yamaha Apex Std Red
Apex06 what are you getting for speeds and performance with your upgrades? Comparable to an Apex?
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