Bike EFI

[Rucastle]

Todd wrote:
>There seems to be some interest in EFI on motorcycles.  A few people
>have mentioned using throttle body instead of multiport.  I am
>curious as to why throttle body would be used.  I assumed that
>multiport would be more efficient.

I'm one of the people that would like to FI a bike engine. I know dick
about electronics, but personally I would not consider throttle body FI.
Bikes to my knowlage, with the exception of Harley Davidson, are designed
around indiviual ports and carbs for each cylinder.  Throttle body on a
Harley yes.  On the rest, unless you have a hair drier on it, I think you
would probably lose out if you used throttle body FI.  I don't mess around
with new bikes but my old BSA 500cc single cyl. makes 1.86 hp  per cubic
inch at the rear wheel, this is from Superflow dyno runs I have made.
Check out the HP the new super bikes produce.  I'll bet by the time you
made a manifold etc. to run a throttle body you would not gain back from
EFI what you lost to manifolding.

Hylton