The real basics

[rr]

Not to mention the manifold itself (dual-plane). GM has
some TBI's with different injectors in each bore. This
is on stock dual-plane manifolds.

BobR.


On Thu, 31 May 2001 07:47:38 -0500
 "David & Cheryl Haggard" <david at newcovenant.com> wrote:
>    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>
> >

----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org