RE: Shaker Hood, CFM Comparisons, Questions..Sorry Long

From: brian.duffey@intelsat.int
Date: Mon Aug 30 1999 - 10:54:30 EDT


Eric,

Let me know when you go into production, I'd certainly be interested in a
hood.

Ya never know, if Terry has Keystone doing the bulk of his production, he
may have facilities available to do a run on your Dak hood for a small
'group purchase'

Later,

Duff
'95 SLT 4x4 CC 318 4spd/OD - 3.55 LSD
MSD 6AL - MSD Blaster Coil
MSD 8.5 wires - K&N FIPK - F&B Stage I TBI

> -----Original Message-----
> From: KURTZ ERIC [mailto:erics5.9@home.com]
> Sent: Monday, August 30, 1999 10:23 AM
> To: dakota-truck@buffnet.net
> Subject: Re: DML: Shaker Hood, CFM Comparisons, Questions..Sorry Long
>
>
> Yeah, those Grand Cherokee vents certainly work. I work in the Jeep
> design studio so I know that first hand! Believe me, no offense takin
> on buying Terry's hood!! I would like to sell a mass of these, but it
> will be tough doing it out of my garage!
> Eric
>
> durling@ibm.net wrote:
> >
> > For a guy that's doing all of the work himself at home you
> have come up with a pretty
> > decent hood. Keep up the good work and keeps us posted.
> BTW, that is another similar
> > design that I would consider. The only problem though is
> that down the road I might put
> > an SC in and the hood would be useless. I still like the
> look of a custom hood but not
> > sure what the future may bring. No offense, but since there
> is already a proven use of
> > Terry's hood for the '91-'96 daks if I get one I'll
> probably go there if I decide on the
> > hood route.
> >
> > I also have to ask, Weren't you also involved in the
> discussion about drawing the heat
> > out of the engine compartment a couple of weeks ago. I was
> wondering about grafting the
> > vents from I believe a '96-'97 Grand Cherokee 5.9 would
> work. The '91-'96 daks had a
> > flat hood like the Cherokee and they are already proven to
> work by DC engineers. Unless
> > they were fake but I remember readung that they were added
> because the engine produced
> > more heat than the 318 so they had to get it out of the
> engine compartment. Sorry for
> > the long post just looking for yours or anybodys opinion on this.
> >
> > Jeff Durling
> > '96 RC Sport
> >
> > KURTZ ERIC wrote:
> >
> > > Check out the nasty pics of my ram air hood. Until
> paint gets on it
> > > you wont be able to see the details, but check out the
> pictures that Jon
> > > so graciously put on the pic list for me.
> > >
> http://www.cs.fredonia.edu/~stei0302/www/dakota/attachments/er
> ics5.9@home.com/
> > > Eric
> > >
> > > Jeff Durling wrote:
> > > >
> > > > I would also be interested in a somewhat guess for
> Terry's ram-air hood for the
> > > > older daks (I know some DML'ers have these). I
> currently run a 14x3 setup and like
> > > > the ram-air hood but I am also looking at a quick-d
> intake. From the chart I would
> > > > have to go with a 8" cone. If there is not very much
> difference in the 14x3
> > > > ram-air hood and the quick-d intake then i'm going with
> the quick-d only because
> > > > it's cheaper. Either setup would go well with the stage
> I tb but I just want the
> > > > best possible setup for the money. I think that some of
> the other genII owners
> > > > would probably be interested to right?
> > > >
> > > > GS- wrote:
> > > >
> > > > > For those of us seriously considering a shaker hood
> > > > > in the future. I thought it might be wise to pull in
> > > > > as many FACTS as possible on the shaker hood design.
> > > > > Mainly CFM and compare them with say the newer FIPK
> > > > > (large cone and tube).
> > > > >
> > > > > I know there has already been some discussion on looks
> > > > > and earlier Cuda shaker design efficiency. Some were
> > > > > a little vague. Basically we can't compare the cone
> > > > > and the 14x2.5 element because of the different environment
> > > > > the shaker offers (Ram Air). I'm not trying to scare everyone
> > > > > away. If its to early to get the facts, I'll settle for a
> > > > > little theory and or experience. Here are some basics to
> > > > > start out with anyway:
> > > > >
> > > > > 14" K&N 2 1/2" tall: 109.9 Square inches (662.7 CFM)
> > > > >
> > > > > 8" cone 138.16 Square inches (833.1 CFM)
> > > > >
> > > > > (Cudos to Charles Smith, I'm borrowing his calculations)
> > > > >
> > > > > The question now is "What is the CFM (14x2.5)when RAM
> AIR is added?"
> > > > >
> > > > > There has to be tons of variables involved in this question.
> > > > > so I'll take an average "best guess" from some of the gurus.
> > > > > Frank, BruceB, Eric, Patrick, Bernd, Shaun?, Charles, Jon?
> > > > > Bill (Tier), Bob, Doc ? Hehe....Jules...?(shocker!)
> > > > >
> > > > > thanks
> > > > >
> > > > > GS -
> > > > >
> > > > > PS
> > > > > Just for grins, heres the great post of CONE, FABM's
> CFM from Charles:
> > > > >
> > > > > >
> > > > > > I have done calculations of a bunch of air intakes.
> Using info found here:
> > > > > > http://www.knfilter.com/affacts.htm#SELECT
> > > > > >
> > > > > > Here are my findings:
> > > > > >
> > > > > > Stock paper filter: 71.875 Square inches (355.78 CFM)
> > > > > > K&N Drop in filter: 71.875 Square inches. (433.40 CFM)
> > > > > > 10" K&N 2" tall: 62.8 Square inches (378.84 CFM)
> > > > > > 10" K&N 2 1/2" tall: 78.5 Square inches (473.35 CFM)
> > > > > > 10" K&N 2 3/4" tall: 86.35 Square inches (520.69 CFM)
> > > > > > 10" K&N 3" tall: 94.2 Square inches (555.97 CFM)
> > > > > > 14" K&N 2 1/2" tall: 109.9 Square inches (662.7 CFM)
> > > > > > 14" K&N 2 3/4" tall: 120.89 Square inches (728.96 CFM)
> > > > > > 14" K&N 3" tall (needs mod to rad hose to
> fit):131.88 Square inches (795.23)
> > > > > > 6" cone (The one I have) 103.63 Square inches (787.7 CFM)
> > > > > > 8" cone (I will buy if the need arises) 138.16
> Square inches (833.1 CFM)
> > > > > >
> > > > > > Here are some more interesting numbers:
> > > > > >
> > > > > > (CFM ratings on Bruce and Frank's Throttle Bodies)
> > > > > > Stage II is around 700cfm. Stage one is around
> 640cfm. factory is around
> > > > > > 565 cfm... Havnt been back to ;the bench" in a
> while, but thats what I
> > > > > > recall as the breakdown...
> > > > > > BKB
> > > > > >
> > > > > > Charles smith
> > > > > > 1999 Dakota R/T RC
> > > > > > 15.0@95 mph (g-tech)
> > > > > > Ican2u7176@aol.com (or) Dak99rt@aol.com
> > > > > > http://hometown.aol.com/ican2u7176/index.htm
>



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