jbsr
Extreme
has anybody worked out fuel numbers for mpi @5psi sea level. apex
SPEED
TY 4 Stroke Junkie
Jbsr , Contact Allen At Ulmer Racing I believe he has some base numbers for 5lbs. and most everything else you need for the S/C.They are at the altitude we are here in the east 

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- 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
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Apex fuel numbers for 5 lbs of boost.
Elevation: 1350'
Mode 1: 1
Mode 2: 2.5
Mode 3: 2
Mode 4: 4.5
Mode 5: 1
Mode 6: 8
Elevation: 1350'
Mode 1: 1
Mode 2: 2.5
Mode 3: 2
Mode 4: 4.5
Mode 5: 1
Mode 6: 8
jbsr
Extreme
Thanks for the fuel info Two more questions.
What is being done to fill the big hole over the intercooler.?
I'm thinking of modifying the air box top.
How about clutching. I.m doing two super chargers. One on afrien who weighs about a hundred pounds less than me. Any difference.
Sea level trail riding
What is being done to fill the big hole over the intercooler.?
I'm thinking of modifying the air box top.
How about clutching. I.m doing two super chargers. One on afrien who weighs about a hundred pounds less than me. Any difference.
Sea level trail riding
- Joined
- Apr 17, 2003
- Messages
- 5,563
- Reaction score
- 1,480
- Points
- 2,003
- 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
Hole over the intercooler, some guys have used the stock air box lid and cut it and glued it to the hood. The other option is to get BPE hood scoop for $109.
I use the 60 gram adjustable Yamaha weights from http://www.supremetoolinc.com and have a complete kit that includes primary spring, weights, and a helix for $365. A 100 lb difference in riders will definitely require a different weight setting between the two.
I use the 60 gram adjustable Yamaha weights from http://www.supremetoolinc.com and have a complete kit that includes primary spring, weights, and a helix for $365. A 100 lb difference in riders will definitely require a different weight setting between the two.
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