motorcycle intake manifold

[Jemison Richard]

Hose clamps will never hold the pressure of a FI fuel pump.  Stick with the
"standard" FI fastener methods.  Everything you make keep in mind (60 psi *
surface area in inches!).

Rick
Indy

> -----Original Message-----
> From:	Jake Sternberg [SMTP:chickens at ccwf.cc.utexas.edu]
> Sent:	Friday, October 09, 1998 12:36 AM
> To:	diy_efi at esl.eng.ohio-state.edu
> Subject:	motorcycle intake manifold
> 
> 
> i'm making my first intake for my motorcycle (1100cc four) out
> of 1.5" steel tube, so it's easier to weld it all together.
> Is there any reason this would be a bad idea?
> 
> I plan to put short pieces of thinwall tube for the injectors;
> the O-ring will go in this tube but not necessarily seal, instead
> the injector will be sealed and held in place by a piece of rubber
> hose and a hose clamp.  the outside diameter of the tube it sticks
> into will be the same as the diameter of the injectors' shoulder
> so one hose clamp should be wide enough to make the seal.
> 
> the injectors will aim about 25 degrees upward of horizontal, and
> they'll be under the pipes leading to the ports.  I thought about
> the possibility of fuel collecting in the bung around the injector
> at times but i dont think this should be a big deal.  am i wrong?
> 
> As for the fuel rail, it's about 1/2" diameter steel tubing and I
> plan to hacksaw it into four T-shaped pieces and connect them to
> each other with 1/2" rubber fuel hose and hose clamps to get the
> right spacing.  They won't have barbs, but i can coarsely sand
> the ends of the tubing so the hose can stick better.  Should this
> be okay up to about 50-60 PSI pressures?  the rail pieces will
> be held onto the injectors with the original steel clips.
> 
> and is there any reason an oil pressure transducer can't be used
> as a fuel pressure transducer?  I want to be able to monitor fuel
> pressure with an LED bar graph over an adjustable range.
> 
> thanks everyone,
> -jake
> 
> oh yeah, enough with the ZL-1 stuff okay? <duck>