[Diy_efi] EFI--Manifold types

[Matthew Bormet]

I have an edelbrock victor jr that we converted to EFI.  It's currently on
my little 305 until that blows, then I'll probably slide a 400sbc under it.
It's lacking power off the line, but once I hit about 3200 RPM, it feels
like a rocketship is taking off.  Never really felt a powerband quite like
it.  I'd imagine that with a 400sbc, the powerband would start at about
2300rpm or so.

Check out this link for tons of info on the science of plenum size, runner
length, etc...

http://www.grapeaperacing.com/GrapeApeRacing/tech/inductionsystems.pdf

Very good info here.



----- Original Message ----- 
From: "GSMFN Allmaras" <dallmaras at ford.navy.mil>
To: "'A list for Do-It-Yourself EFI'" <diy_efi at diy-efi.org>
Sent: Tuesday, August 24, 2004 11:14 AM
Subject: RE: [Diy_efi] EFI--Manifold types


> Garrett,
> >From the research I've done selecting a manifold for efi is basically the
> same. The big difference is efi intakes don't have atomized fuel flowing
> through them so an intake designed for efi is designed with no regard for
> how atomized fuel would behave if it was present. Basically an intake
> designed specifically for efi is a better choice than coverting a carb
> intake if you have the option. However, for an all-out race V8 the huge
> single plane works great. I'm not an expert at all, just know what's
worked
> for me.
> Dustin
>
>
>
>
> -----Original Message-----
> From: Garrett P. Beauregard [mailto:gpbeau at cox.net]
> Sent: Sunday, August 22, 2004 4:52 PM
> To: diy_efi at diy-efi.org
> Subject: [Diy_efi] EFI--Manifold types
>
>
> Has there been a discussion in this forum regarding the effects of
different
> manifold types (i.e., single-plane, dual-plane, etc.) when used with EFI?
> I'm planning a FAST or ACCEL system for a SBC and wondering if the same
> selection criteria apply to EFI as they do (did) to carb'ed engines. I
know
> that venturi signal issues are gone, but are the airflow tuning issues
still
> relevant?
>
> If there was already a discussion, can someone suggets a date range to
look
> through?
>
> THANKS
>
> Garrett
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