high rpm engine pulse

[tim curran]

I installed an industrial injection leval 2 inj. Pump on my truck now when I give it full throttle it kind of pulses under load. It still gets good fuel milage for what it is 15 or so but I wonder if my timing is off a little. Any body got a thought.

[BC847]

"industrial injection leval 2 inj. Pump"

Hey Tim,

What is involved in that pump. I'm looking at your Sig and am confused.

What kind of lift-pump are you running?

Are you perhaps talking about the turbo surging?

[skilletky]

Mine does the same thing. The more timing I give it, the more it is noticeable. I'm running a factory pump that's turned up and 7x.015 injectors. It drives me nuts

[tim curran]

My old pump died so I got a pump from ind. Inj. 3200 springs and there fuel pin I put my deny t p in back in it is just a rebuilt pump with the basic goodies not legal in california like most things I dont think it is aturbo surge because this pump isn't cranked up like my old one. I am using a stock lift pump with a 10 psi electric pump. It didn't have this problem before I changed the pump. It has good pulling power towing a trailer I get 38 psi of boost it just pulses under real heavy throttle

[skilletky]

Mine didn't do it either till I swapped ip. Probably gonna get a scheid pump to rePlace my current one.