Has anyone tried fitting bike carbs to the boxer engine?
downdraught carbs on bikes weren't exactly popular, and a regular side mounted carb would have to feed through a 90degree manifold, so not exactly ideal!
if it were easy enough to do, i would have done by now, as i'm much better with a set of 40mm Mikuni Flatsides than i am with weber idf 40's at the mo! ha ha!
nice thought though, as is some of the excellent throttle bodies that bikes use, the big sports bikes are now using kit pretty much big enough these days for our -2.0litre motors to make use of in all but the hottest of applications.
am i right in thinking that to replace a 40mm bodied carb, you should use a larger approx 45mm throttle body?
anyway, i digress,
"16V carb mainifolds are now available in germany..
they look quite neat Sprint, the water route is quite isolated from the fuel tunnels isn't it.
the casting looks good too compared to the motorman items i've seen, but they look a little shorter than than i would have expected, as most tuners who have had a go at creating these have found that a bit extra height/length in the the inlet tract have found that the extra distance has been beneficial to low/mid torque on the 16v motor.
one thing i'd like to do if building my own, is do away with the original injector porting scollop out of the entrance plate altogether, i don't see why they have kept it in, it seems illogical to me to have an irregular shape and surface such as that when considering atomised fuel travel from a carb much further away than the injector nozzle was?
would it not make more sense to either fill that area to have a smooth and perfect oval inlet, or better still, open it out further to blend it better with the back of the oval, and portmatch that within the head and gasket too?