tonight i was throwing around ideas with my bro in law wondering how we could fix the #6 always running lean problem. we know that #6 is the last bore on the coolant flow path, which in turn makes it hotter than the rest which is why we think they always go first.
we also know that people have been throwing around the idea that the plenum design makes #6 get more air which also doesnt help the situation (i havent seen any hardcore data so im assuming its just a theory, correct me if im wrong).
we thought about getting a slightly smaller water pump pulley to speed up the water flow around the motor. has anyone ever heard of anything like this? i know there are higher flowing water pumps out there but i guess this mod would be fine for a 250-300kw car.. also a bit lighter on the pocket.
is the r32 water pump pulley smaller? or does anyone know where i could find one?