slp piped viper jetting for 4000 ft and up?

sarge

New member
Joined
Oct 12, 2011
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25
Age
42
Location
montana
Hi
I heard this was the best yammi site from a friend and im looking for some help. So I picked up a viper with slp pipes, a 159 track and was hoping someone could tell me good jetting specs for 4000 ft and up?
It has all the under hood air blocked off and flow rites in the dash for plenty of cold air. Help would be greatly appreciated.
Thanks in advance
 

ive tried their jetting specs at the end of last year and they are quite a bit off. They say 45 pilot at 10,000 ft and up. Thats wrong. Should be 60 or 62.5
Hoping someone will have something that will work a bit better.
thanks
 
Give them a call I liked what they said or offered for jetting specs they were safe but for me when I bought they were off on the mid range.
 
SLP pipe charts are just for their pipes...adding the flow-rites and blocking the warm underhood air will make it run leaner. What jetting do you have now, and is it too lean or too rich?
I ride 3000-7000 feet, I'll share my set-up with you. I'm a bit rich when at 6-7000 feet, but have to be since I ride around 3000 feet on occasion.

Of all things, my carbs are set up at stock jetting...it just worked out that way when I got done with the mods.
Pilots are the stock 45's. I have the fuel screws set at 2-1/2 turns.
Needles are at stock position of 3.0
Mains are the stock 156.3

My plugs are usually a medium brown after a WOT run.
 


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