EFI motorcycle

Don Ricciardiello bernadot at zeta.org.au
Wed Jan 30 18:41:28 GMT 2002


With respect to racing motorcycles I think EFI has resulted in enormous
gains for big bore machines a la 998 Ducatis and SP-1 Hondas (both one litre
twins). These machines run 60+ mm throttle bodies per cylinder to maximise
top end. EFI has allowed these huge instruments to work well for good
predictable throttle response in the midrange which is especially important
during corner exits. No carb can match the performance "range" of these
systems. The Ducati is reportedly putting out 186 hp at the rear wheel in
customer race spec. Not bad for a design dating back to the early eighties!

cheers

Don


----- Original Message -----
From: "Clint Corbin" <ccorbin at spinn.net>
To: <diy_efi at diy-efi.org>
Sent: 29 January 2002 14:04
Subject: Re: EFI motorcycle


> Vern,
>
> The only reason the new bikes are going to EFI has nothing to do with
> power.  It is emissions.  On a race bike, you can jet the thing for
maximum
> power without worrying about pissing off the EPA.  I would be very
suprised
> if you got ANY additional power with EFI on a bike vs. a properly set up
> set of carbs.  To find parts for this, it would be easiest to find a
> trashed fuel injected production bike and steal a few parts such as the
> throttle bodies (if possible), the injectors, fuel pumps, etc.  As for
> cost, I have NO idea.
>
> Clint
>
> At 09:48 AM 1/28/2002 -0800, you wrote:
>
> >Hi All,
> >
> >I'm new to this list, so not sure if this is the correct forum. Here is
what
> >I want to do.
> >
> >I have a race motorcycle that I want to convert to EFI. There are some
basic
> >questions that I need to ask before I go down this path.
> >1) What would the cost be for converting a carbureted motorcycle to Fuel
> >Injection ?
> >2) Where would I source the parts for such an endeavor?
> >3) Would the return of investment be worth the effort ? Would I get a
> >substantial increase in horse power 5-10 hp (motorcycle remember) that
would
> >make the effort worth while ?
> >
> >Thanks for the help in advance.
> >Vern
> >
>
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