On my 4x4 cosworth i have no boost, flat out i'm doing about 105!!! The wastegate doesnt seem to be opening, i dont know if its the turbo, actuator or what. The turbo has a little front to back play but not a lot and no movement side to side, uder accleration at about 4000 revs plus when you let off the accelerator it sounds like a dump valve (i gather this is all the gasses going back) Can anyone advise me on what to test, has anyone had this before? Its a 4x4 cosworth running standard everything. Lately its getting me down because when i speak to garages they dont have any equiptment or knowledge of the cosworth engines.
Any help guys would be AMAZING!!
Andy