jay28
06-04-2010, 20:32
Car has been off the road for nigh on 4 years now. Got it back on the road on saturday and all seemed ok once id disconnected the vac pipe from the dump valve( Split diagphram). Only boosts up to 12 psi, i assume due to the dump valve being forced open by boost pressure. My problem is it goes like a scalded cat in 1st 2nd and 3rd, crap in 4th and 5th!! Is this likely to be due to my fuel pump not coping with demand? Im running a TTS twin choke carb conversion, Big forge font mount and a t25 hybrid. Also on super unleaded and no knock sensor. Any help/advise appreciated!!:)