RX Buck
Lifetime Member
- Joined
- Sep 11, 2003
- Messages
- 123
- Age
- 48
- Location
- Grand Rapids MN
- Website
- mobilepredictive.com
- Country
- USA
- Snowmobile
- 2017 Yamaha Sidewinder LTX
- LOCATION
- MN
I am running the Holtzman 40 horse kit with the 2 nozzles for the filter kit. I was wondering if anyone else is running this system and what their NOS jetting is set at. I know NOSPRO sets his at I believe 5.5 turns out for the 60 horse shot witht he stock airbox. I have mine set at 4.75 turns out. I will test this when the snow falls, I believe I can run this setup down to 4 turns out but I will see. I was just wondering if anyone else had any input on this setup.
Later
Later
- Joined
- Apr 14, 2003
- Messages
- 6,539
- Location
- Hessel, Michigan
- Country
- USA
- Snowmobile
- Sidewinder, SR Viper XTX, SR Viper XTX, 2016 Apex XTX and Pro-Line Pro Stock 1000
Buck, The best way I found out to be, was to set a little higher, and see if you get a slight bog. I had mine at 7 out, had a bog when I hit the button. Turned in 1 turn, and had a slight lag. Turned in a 1/2 turn, then a 1/4, and I had no lag. I did this on a 20° day, so I knew I would be o.k. if the temp got colder, cause I am in the horsepower tolerance without lag, but still on the fat side for when it got cold.
This also depends on jetting from the carbs. Might be a difference of a 1/2-3/4 turn if that.
This also depends on jetting from the carbs. Might be a difference of a 1/2-3/4 turn if that.