LT1 plenum update

[Dave Zug]

I think, as earlier posts implied, a big part of the advantage of changing
to a large box is that the radius of the turns (the turn the air has to
take) is increased as the runners are distanced from the center of the TB.
Simply adding volume may get you 10% of the advantage.

What if someone fabricated a few mandrel bent 2" tubes to insert into the
upper plenum of a TPI to smooth the air in the turns? even If it did nothing
I bet they would sell as many as the TB airfoils!


----- Original Message -----
From: Scott Peitzsch <jlg-sep at mediaone.net>
To: <gmecm at diy-efi.org>
Sent: Wednesday, January 17, 2001 5:15 AM
Subject: Re: LT1 plenum update


> > Bigger capacitor.   I am also a EE, It did not occur to me
> > that the intake was acting as a capacitor.   I would think
> > it would be more of an issue in lower MAP pressures (ie idle
> > and part throttle).   I guess it would be interesting to
> > have a map sensors that worked at higher frequencies so
> > you could see if the pressures was changing substantially
> > over a engine cycle.
>
> The capacitor analogy is exactly what I was following here.
>
> > What are you going to do to the intake to increase the capacity?
>
> Open up the top and attach a bigger box!
>
> -Scott
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