Love This

[Bruce Plecan]

-----Original Message-----
From: Greg Hermann <bearbvd at sni.net>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Saturday, January 30, 1999 12:15 AM
Subject: Re: Love This

I can understand the concern about the regulator, and vapor, having done a
fuel/vapor seperator, and included a clear section of tubing during
developement
(was carb.) the vapor is not a major issue, if bleed out-ie maybe 1-2-3%,
it's
when there is no effort for it to bleed out that it's a problem.
Bruce


>>Easier than that, just mount the rails horizontial, and have the regulator
>>the
>>high point, and vapor that collects rises to the regulator and self purges
>>to the
>>gas tank.  On some oem applications the regulator is below the centerline
>>of the fuel rail so the rail accumulates the vapor, and at first WOT can
go
>>thru
>>a purge mode..
>>   Course the actual cause of the vapor forming is what needs addressed.
>>As an example of the worst fuel line plumbing look at a 84 F-body with a
>>carb..
>>The fuel line runs right above the top of the tranny, and within 2-3" of
the
>>exhaust.
>>   I wouldn't be surprised to find out road vibration plays a part in
>>fuel foaming.
>>Cheers
>>Bruce
>>
>Yep, that works, but not the best (easiest or most accurate) thing on the
>regulator. Regulator low, always in liquid, float vent high, to take care
>of the vapor, if any is one step further. And , yep, it's one more piece to
>bust. But it will get rid of the vapor virtually INSTANTLY, even after a
>hot soak.
>Proper plumbing practice is ESSENTIAL, either way. Good fuel piping has a
>lot in common with proper refrigerant piping.
>Regards, Greg