PLENUM SPACER-the INSTALL & TEST

From: GSWillhite (GSWillhite@ualr.edu)
Date: Wed Feb 10 1999 - 16:19:31 EST


After I met the owner and techs, they wanted me to pull around
in back where they had the shop and dyno. I did and they proceeded
to give me a free install and to check hood clearances. Guess what?
The larger -the 1" spacer fit great. I had to look at it first to
see if it had the engineering I was hoping for. It did! I'll try
to discribe it to you.
        Of course its T shaped like the bottom of our TBs. It had 3
holes, 2 for the ports and 1 for the IAS airport (I'm guessing).
Its machined from 1" thick aluminum. Now the Helix, I was expecting
to see something sticking out of the ports to cause the swirl, what
I saw was a corkscrew (like someone had machined large threads) into
the inside of the spacer ports. They told me they dynoed a late model
Dakota R/T and an older model V-6. So the 17 hp was from a 98-99 yellow
R/T that they said,"ran like a bat out of hell".
        It took 10 min. to install and 5 min. to varify hood clearance for
the larger of the two spacers (smaller was 3/4"). They let me test
drive it before I shelled out the cash. Well I wish I could say it
impressed me, it did'nt. I hate this question but, "could you feel
a differance? Yes, it had more drivability with less pedal pressure.
No problem getting 1,2,3rd gear scratch, but I could do that anyway.
I've got the 318 so if dynoed,I'd say the spacer gave 10-14 hp. Bear
in mind I'd like this sucker tested by the DML mod squad just to see
what we have here. I can't help but think some really nifty guys in
(K)alifornia could duplicate this at a fraction....hehehe.

GS -
98 5.2L 5spd
P&P TB w/expensive block of Alum.
3" Flomaster single
Tonneau



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