DIY_EFI Digest V5 #525

[James Ballenger]

	Our team made our own from Electromotive Fuel rail stock
http://www.emi.cc/fuel_system.htm.  Which looks identical to the stuff from
Arizona Speed and Marine.  It was extremly easy to work with.  Just use a
drill bit of the right size for the injector holes and a npt tap on one side
for the fuel input and you are good to go.  We also hogged out some extra
material on the mill, but that is only necessary for the exteremely weight
conscious.  We don't have any noise problems, but we are not flowing much
either... and our engine is pretty noisy anyway.

James Ballenger

>-----Original Message-----
>From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org]On
>Behalf Of Carter Shore
>Sent: Friday, March 09, 2001 8:08 AM
>To: diy_efi at diy-efi.org
>Subject: Re: DIY_EFI Digest V5 #525
>
>
>On Thu, 08 Mar 2001, Nigel Heron wrote:
>
>> Subject: fuel rail
>>
>> hi,
>>
>> i'm going to be making a custom fuel rail for my 16v
>> vw out of billet aluminum.
>> What is the appropriate internal volume of a fuel
>> rail? is there a basic guidline based on injector
>> size, fuel pressure, max rpm, etc.?
>>
>> thanks,
>> - -nigel.
>
>Nigel, listers,
>
>You can get fuel rail extrusion for $12/ft from
>Arizona Speed and Marine:
>
>http://www.azspeed-marine.com/products/fuelinj/injacc.html
>
>This rail is sized for V-8's, (approx 1/2" ID), so
>it's probably not too large. Of course, you may still
>have to deal with harmonics, etc., but at that price,
>you can afford to build a few and experiment.
>
>I bought my rail from them, a 3ft piece. NFI, etc.
>
>I'm using Ford Bosch style injectors, so I got a 14 MM
>(.551 ") reamer for finishing the injector holes.
>Have not machined it yet, so I can't report on the
>results.
>
>Has anyone considered putting a piece of open cell
>foam (like inside a fuel cell) or maybe a metal or
>plastic mesh inside one of these rails? The idea being
>to dampen the acoustic characteristics without
>impeding the flow.
>
>I'd favor a piece of coarse stainless mesh, rolled up
>into a cylinder, and inserted into the passage. The
>foam makes me uncomfortable for the long haul.
>
>Anyone know the speed of sound in gasoline at 43 psi,
>and 100 F? Maybe the resonant frequency of the chamber
>can be calculated.
>
>Of course, if you are committed to making your own
>rail from scratch, good luck!
>
>Carter Shore
>
>
>
>__________________________________________________
>Do You Yahoo!?
>Get email at your own domain with Yahoo! Mail.
>http://personal.mail.yahoo.com/
>---------------------------------------------------------------
>-------------
>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
>
>

----------------------------------------------------------------------------
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