Mike,
Dont worry about the length of your post! We appreciate any and all
info that you have short or long! Sorry to hear about your divorce, but
Im glad to hear that you are enjoying yourself during it. I dont think
you made a mistake ordering the QuickD. Every little pony helps and the
quickd certainly will from what I understand!
Eric
Mike Gibbons wrote:
>
> Hi everyone,
>
> I am new to DML (although I've been reading the archives for a couple of
> weeks now) and would like to introduce myself. I am the proud new owner of
> a '99 Blk CC SLT 4x4 w/ 318 auto. I live in the Wichita KS area and am a
> Field Service Eng. w/ Raytheon Aircraft.
>
> Now that you know me, I would like add my thoughts to the thread on ram air
> hoods. I seem to recall an article that stated an aircraft turbine engine
> regained atmospheric pressure at the intake at around 80 kts (don't quote
> me, I can't find the article to back it up, will keep looking) but has an
> enormous frontal area with very efficient intake. Modern sportbikes also
> use ram air scoops fairly effectively and Sport Rider magazine had a very
> good article recently (Oct. '99) on this issue. Taken roughly from that
> article:
>
> Pressure (force divided by an area} = 1/2 x density (mass divided by
> volume) x velocity squared. The resulting maximum theoretical pressure
> would be about 27 Millibar (approx. .4psi) at 150 mph.
>
> I feel this may be true on an intake hung out in a perfect airflow, but
> remember, most automotive scoops are close to the body line of the vehicle
> very close to the stagnant boundary layer of slower moving air next to the
> hood further reducing effectiveness. Remember that this pressure still has
> to fight it's way through the air cleaner, intake tract, TB, intake
> runners, past intake valves and against the positive and negative pressure
> pulses working their way back up through the intake as the engine gulps in
> air. This can leave you with as much as 70% pressure loss in a good system,
> even greater loss in a bad system. The greatest benefit from a ram air hood
> will be the added benefit of a colder intake charge as stated in previous
> replies.
>
> Even more important than all this in my opinion is, the Fun Factor, which
> is = Personal Enjoyment (how good does it make your Dak look) divided by
> P.F. (personal funds, can you afford it) or in other words, if you like it,
> that's what matters.
>
> Now my question. What's all this about low throttle position sensor output
> voltages on reworked T.B's. I just ordered one from Quick D. Was this a
> mistake? I am adding it to a Gibson Cat-Back, Hypertech PTM, 180 deg.
> thermo and K&N Gen II (all still on order). Any thoughts are appreciated.
>
> The truck only has about 2,500 miles on it but since I'm going through a
> divorce I am treating myself to as many mods as I can afford, and then
> some. My motto is "Spend it before she gets it!". Sorry about being
> long-winded on my first post to the group, I'll try to keep it shorter in
> the future.
>
> Mike Gibbons
> gibbons@fn.net
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