dieselmandustin
Member
Truck is a early 99. Fully built motor w/ (s468, P.I.S 300/400, HB Jr. Hpop). This is a new build with only about 3k on it. Under any sort of load at all, in all tunes it starts to miss and fall on its face. If I let out of it and get back in it most of the time it will smooth out and take off. Just like it's running out of fuel when it's missing but it's holding 60 psi of fuel pressure. I know the Hpop is not enough but another upgrade is in the works. It's dropping down to about 1600 psi at wot but when it starts to miss its still at like 3600 psi. I can't figure out of its an oil problem or tuning or injectors or what. Dynoproven built the motor and I'm running his tunes although it has not been live tuned yet. Have any of you guys with 400% nozzles had an issue like this? I have not gotten to talk to Jonathan about it yet. just thought I would ask here first since I won't get to talk to him til probably after Xmas.