full tilt viper
Pro
- Joined
- Dec 25, 2009
- Messages
- 142
- Reaction score
- 18
- Points
- 988
- Location
- Ontario
- Country
- Canada
- Snowmobile
- Nytro MPI Stage 1
Running 27tx28b now and only making 5.5 lbs. Have stock fuel system , cold air intake. Trying to figure out how much more boost the extra tooth on the bottom will make ?
mpi xtx
Extreme
We just did a 26t and 29b on a stage 1 at sealevel and it is making 10#
