GS,
I talked to my fluids buddy last night (www.flometrics.com). He says Yes,
If it is implemented properly the internal helix can delay the flow
separation at the inlet to the plenum by shedding vortexs (vortecies?)
perpendicular to the direction of flow, disturbing the boundry layer (which
in this case is the separation layer too)! At least the principal is sound,
and your Butt dyno seems to agree with theory? It may not be as effective
on different manifolds, different engines etc, but from what Ive seen of the
Dak's manifold, it seems to make sense in this aplication, although Im
interested in how they did the transistions from the TB bore to spacer and
spacer to manifold. Well get the TB out to you, but I may just buy one of
these things to check out! Easier than machining the Helix in the maple!
BKB
-----Original Message-----
From: GSWillhite [mailto:GSWillhite@ualr.edu]
Sent: Friday, February 12, 1999 7:47 AM
To: dakota-truck@buffnet.net
Subject: Re: DML: PLENUM SPACER UPDATE attn: Bruce
> From: "Bridges, Bruce" <bbridges@alarismed.com>
> GS,
> Wed be happy to dyno with and without! At your leisure! Keep us posted!
> BKB
Bruce, Frank sent this e-mail to me 1 month ago to the day. What say
when you get
a TB ahead, send me one and I'll ship my TB and the infamous "plenum
spacer". If
that won't be to soon, I have Franks ph.# I'll call for an address to
ship it
(the spacer)to. There is a positive performance feel to this thing, so
much so I am not returning it to them. Let me know.
GS -
98 5.2L 5spd
> I am out here in Calif. and usually get to
> work around 8:00 AM and leave somewhere around 6:00 PM. Give me a call. I
> would like to try and get a TB out to you in a week or so. We should have
> some return cores sometime next week. The only cost would be the UPS
> shipping of the core and UPS shipping of your TB back to you. Costs very
> depending on how soon you want the TB's. Three day generally runs around
12
> - 20 dollars depending on your location. The only other cost would be the
> misc. hardware pieces we use. We ship a new gasket and SS button head TB
> hold down bolts. Misc. pieces amount to $10.00. Again just trying to help
> members out, no charge for labor.
>
> Frank
>
> > -----Original Message-----
> > From: GSWillhite [SMTP:GSWillhite@ualr.edu]
> > Sent: Tuesday, January 12, 1999 11:09 AM
> > To: Holloway, Frank T
> > Subject: Re: TBI Question: Reply
> >
> > Frank,
> > (I can call long dist.@ no charge). Send me your phone no.
> > if you don't want to e-mail your address. We'll do it any
> > way you like. No hurry on your part.
> >
> > Thanks again
> >
> > GS -
> >
> > 98 5.2L 5spd
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