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HPFP valve flutter? Anybody?

1K views 6 replies 5 participants last post by  WoodBoy 
#1 ·
Talked to Eric and he said my bucking issue is not the low pressure pump but the high pressure pump. Have any of you guys experienced this an know how to eliminate it or am I the only one that has this issue?
 
#2 ·
Right between 50-55mph. Either let off of it, or give it more. What the hell is causing this?
 
#7 ·
Its worse in colder weather.. thats why alot of guys including me turn down the tunes.. The higher tunes have a very touchy throttle that doesnt help.. But during summer i never experience it except maybe with an empty trailer
 
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