Are you sure it goes between the TB(I?) and the manifold?
On the chebby TBI's, these work by spacing the injectors away from the
throttle body. This frees up some hp because the injectors are in the
airstream and raising them allows less restriction in the airpath. If they put
them between the throttle body and manifold it will increase plenum volume, of
which we have plenty. Sounds like a good mod for the TBI guys though.
Dr. Pat
----------
>From: GSWillhite <GSWillhite@ualr.edu>
>To: dakota-truck@buffnet.net
>Subject: DML: Plenum Spacer??? attn: DML ,Bruce ,Frank & Jules
>Date: Tue, Feb 9, 1999, 9:15 PM
>
> I've just recieved some interesting information. Last Oct. I
> stopped by a co. here in Little Rock called Street & Performance
> Electronics, Inc. Apparently this co. is credited as the pioneer
> of stand alone aftermarket fuel injection wiring harnesses and
> components in 1985 and special featured in Hot Rod Magazine (Oct.
> 1986. They said they were going to start working on
> the Dodge SBEC after the first of the year. Well, I called them
> up to see what type of progress they were making. They said that
> The Dodge computer was "difficult to work on" and that they had
> been experimenting on a "plenum spacer".
>
> (My question was:" What the hell is a plenum spacer?")
>
> The engineer/Tech said it was a 1 inch thich spacer that fit
> between the TBI and the intake. He said it generated about
> 20 hp on the new chevy engines??.. and 15 hp on the Dodge 318 engine.
> They also said the plenum spacer for the Dakota was 3/4 " thick.
> I was invited to bring my truck down and have one installed for
> $75.
> Does 15 - 20 hp from a spacer sound logical? anyone know anything
> about this type of "plenum spacer" technology? I going to have one
> installed if I can get some FACTS on this mod.
>
> GS -
>
> 98 5.2L 5spd
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