radelow
Full Access Member
Hi everyone. 2014 Raptor with a Whipple Stage II kit. We have been having an ongoing surging problem that we cannot get rid of. Occurs around 5 psi of boost and seems for prevalent if under load (IE going up a hill). Had a second shop (Stillen in Irvine, CA) tear the whole install apart and they found numerous vacuum leaks. They put the whole thing back together and still have the surge... Vacuum leaks appear to be gone. Under vacuum, under 5psi, or full throttle no surging whatsoever. Just happens under load around 5 psi. Feels like the bypass is flapping. Anyone experience this and find a solution? I feel like we are all just chasing a ghost here and can't seem to find a definitive reason....
Any help would be appreciated. We are trying to figure it out with Whipple's assistance but at this point I am trying to find any information I can. It has gotten VERY expensive.
Any help would be appreciated. We are trying to figure it out with Whipple's assistance but at this point I am trying to find any information I can. It has gotten VERY expensive.