The real basics

[David & Cheryl Haggard]

   In my mind, the problem with a dual-plane manifold with TBI is mixture
balance. The two injectors MUST be matched in flow to withing 1%, or half
the cylinders will run richer than the other half. With a carb, the mixture
is very well balanced. Not so with TBI.

Dave Haggard

> -----Original Message-----
> From: owner-gmecm at diy-efi.org
> [mailto:owner-gmecm at diy-efi.org]On Behalf
> Of Eric Deslauriers
> Sent: Wednesday, May 30, 2001 3:55 PM
> To: gmecm at diy-efi.org
> Subject: Re: The real basics
>
>
> Bruce,
>
> What, in your esteemed estimation would be one (or several)
> "well thought out
> manifolds" for TBI?
> What are the downsides to something like a dual plane
> Performer? I've had good
> perf with them on carb'd SBs, but TBI is it's own thing. :-)
>
> TIA!! (and thanks for the note, it's going into my binder
> with the other stuff!)
>
> Eric D
> 88 K30 Blazer
>
> > <snip>
> > TBI, you want to use a well thought out manifold. Single
> plane is best.
> > You need to run some controlled amount of manifold heat,
> for High RPM
> > useage, since you lose the atomization advantage there. No
> real need in
> > trying to run a TBI off of a TPI ecm, BTDT. You want the
> faster pulsing
> > rates to help with the atomization.
>
> <snip>
>
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