EFI motorcycle

[Vernon Chang]

This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.

------_=_NextPart_001_01C1A9C2.CF6D2230
Content-Type: text/plain

Thanks Don,

I think Clint has missed the boat a bit on the reason for EFI on bikes
(especially a race bike). With EFI on a bike you can make the throttle
response a bit more manageable. In racing, you can map that point where you
are on and off the power band to meet the needs of the bike and track. As
you noted, it is almost impossible to "tune" a carb to meet the needs of a
bike throughout the entire range. The toilet response of a carb is no match
for the metered fueling of an EFI system.

Vern   



-----Original Message-----
From: Don Ricciardiello [mailto:bernadot at zeta.org.au] 
Sent: Wednesday, January 30, 2002 2:36 AM
To: diy_efi at diy-efi.org
Subject: Re: EFI motorcycle

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

----------------------------------------------------------------------------
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org

------_=_NextPart_001_01C1A9C2.CF6D2230--