Originally Posted by fordsportjay
i already have the rs500 manifold as my car is an rs500.what im trying to work out is the best system to use on this engine im fitting.the engine came with a siamese 8 injector manifold with loom and p8.should i just use all that as i have it already if its or would 4 greys suffice on the rs500 manifold,especially if its going to cost 750 to be able to use the other 4 injectors.
im tempted to use the wrc manifold with this engine as i used to own the car and know it works well.just get it remapped to suit the t4.
on the other hand it seems a shame not to utilise the rs500 manifold as it would look right under the bonnet or should i just say fook that and go with the other stuff
You have a WRC siamese inlet manifold with loom and a P8, so that engine is already running 8 injectors surley???
I'd use the RS500 setup personally (with 8 std Yellows or dark blues for your 400bhp) and sell the WRC inlet, it's not like you have to spend any money on the RS500 inlet now as you already have it.