Had a nice cold morning in upstate NY today and decided to do some plug readings out on the lake. 02 SLP piped Viper jetted to SLP specs. Checked plugs ay 1/8 - 1/4 - 1/2 - 3/4 - and WOT. All readings were perfect except 1/8 + 1/4 where the plugs were wet. Sled runs great at mid throttle and above. Although it has a little burble at low RPM's (below 5500/6000 ) Was thinking of moving one washer on the needles to clean it up. What do you guys think ??? I did this on my Bender piped Viper and it is really snappy on the low end now.... Thanks ! Howie
mopar1rules
Active member
stock don't they have 2 washers underneath, cause both vipers that i have worked on had only 1 washer.
SLP specs are #4 on clip at sea level and #3 at 3-5000 ft. I run at about 2500 ft. Went to 3-1/2 clip last season and went to #3 clip this weekend. Really cleaned up the mid-range.. Was just wondering how much difference moving 1-washer makes. Thanks Howie
red devil
New member
I personally wouldn't mess with the mid range unless you are going to be on top of things when weather changes. Alot of guys burn down in the mid range I personally run mine alittle rich so I don't have to worry about it. I might not be the fastest but it runs pretty good without worries, in my group I'm right there and I didn't go kaboom like they did this year. There scratching there heads because this is the second time for both of them and my yammi is still purring like a kitten. I gave it to my son and he thinks it flys and it does. Leave it unless it fouls plugs because it will last a hell of alot longer unless you want to be towed.I'm the tow vehicle for now slp pipes 5,500 miles now a total of 7,000 on sled still going strong and not touched.
Well, I have been fouling plugs regularly , actually every weekend till I moved them to 3-1/2. Now it fouls them every 2nd or 3rd weekend. Hopefully now that i've moved them to #3 I will solve the problem. Runs really smooth in the mid-range now. Super responsive off the corners where before it used to burble and then clear up. Thanks, Howie
taped throttle
Member
make sure you burp the throttle when slowing down off wide open. the burn down occurs when shutting down, not enough fuel.