Old Library

Hey guys and gals,
    With all this talk about P-Flo's sucking hot air from the engine
compartment and losing power becuase of it, I decided to do a little
experiment.  Now, I was looking through Racer Wholesale yesterday over at t.h
and I came across a product called "Heat Tape".  Now I know this stuff has been
around for a LONG TIME, but this is the first time I ever thought about using
it.  Now, I am going to go buy one of those thermometers at Radio Shack that
has the cord running out from it with the heat sensor on the end.  I am going
to rout it through the air system and put it so it is measuring heat from
INSIDE the P-Flo.  I am going to spend a few days driving around and recording
intake temperature.  Then I am going to go buy some of this "Heat Tape" and
wrap the exhaust manifold and headers (anything else?) and record temps for a
few days.  The ad says it should reduce heat by up to 70% in the engine
compartment.  We'll see if that is true, although I really wouldn't expect more
then a 30%-40% decrease.  Now, in addition to decreasing heat in the engine
compartment (I hope), it will also make the exhaust flow better as the heat is
being restricted.  The only thing I am worried about is melting the flex
cupling.  There is going to be much more heat niside the exhaust then before
and I am afraid the poor little cupling would just burst into flames.  Let me
know what you think.  I should be able to complete this little experiment
within a month.

Abe

PS-Oh yeah, the heater probably won't work as good as before since there won't
be much hot air in the engine compartment to suck into the passanger
compartment. :-(

--
============================================
Abe L. Getchell
Sysadmin/Programmer/Webmaster/Data Manager
University of Kentucky = Center on Aging
E-Mail: &#115;ysabe&#64;iguana.coa.uky<img src=/i/de.gif border=0 width=35 height=15>
Webpage: http://www.coa.uky.edu/~sysabe/
=============================================

Hello all,
    Last night I did some temperature mesurements on the P-Flo.  The
temperature sensor was locate on top of the P-Flo just to get an idea of how
hot the air "around" the P-Flo really is (hot air rises, eh?).  I'm sure if you
put the gauge on the engine side it would be warmer and vise verse.  The
results were MUCH MUCH lower then I expected.  Temperature outside ranged from
59 to 62 degrees for the entire test mesured on the VW Wrongomometer (it was
actually a bit cooler then this).  Travelling between 70 and 75mph the
temperature of the air being sucked into the P-Flo varied between 78 and 84
degrees.  This is MUCH lower then the 120 degrees that somebody (I'm blocking
on the name) posted earlier for a Corrado.  Has VW really made that much
improvement in the engine cooling department?  Now, traveling around town in
the every day stop and go traffic for about 30 minutes produced average
temperatures of 115 degree's.  Now we're getting hot!  When letting the car
idle for two minutes the temperature read *150.4*!!!!!  Obviously something is
needed to keep heat out of that thing when the car is stationary.  A heat
shield is DEFINATELY in order!  Godfrey, have you taken those pictures yet?
I'm interested to know how big of a difference it makes!

Abe

--
============================================
Abe L. Getchell
Sysadmin/Programmer/Webmaster/Data Manager
University of Kentucky = Center on Aging
E-Mail: &#115;ysabe&#64;iguana.coa.uky<img src=/i/de.gif border=0 width=35 height=15>
Webpage: http://www.coa.uky.edu/~sysabe/
=============================================

I work at Underwriters Laboratories Inc. in the Fire Protection
department.  We have all kinds of temperature sensing equipment
for our fire tests and I used some of it one day quite a while
ago for some very interesting tests.

Intake Air temperatures differences between P-Flo typ air filter
and stock or modified air box assembly.

outside temp 80 degrees F
STANDING IDELING TESTS

Test No. 1
Place inconel thermocouple (tc) on fully warm egine block beside
air box.  Result - 190 degrees F

Test No. 2
Place tc on side of air box closest to egine
Result - 190 degrees F

Test No. 3
Place tc inside air box
Reslut - 95 degrees F

Place tc on P-flo closest to egnine
Result - 185 degrees F

Test No. 4
Place tc on opposite side of P-Flo furthest from egine
Result - 150 degrees F


MOVING TESTS AT 55 mph

Test No. 1
Place tc on engin block beside air box
result - 135 degrees F

Test No. 2
Place tc on side of air box closest to engine
Result - 115 degrees F

Test No. 3
Place tc inside air box
Result - 80 degrees F

Test no. 4
place tc on P-Flo closest to engine
Result - 105 degrees F

Test No. 5
place tc on opposite side of P-flo farthest from egngine
Result - 99 degrees F

So there it is.  Draw your own conclusions.
I've been telling people around me for over a year now that
the stock air box with mods is better, not to mention cheaper
but no one listens to Mike...

Philip Meadows Jr. wrote:
> I could pull away from him, but not like I usually could; atleast
> not like I could if it was 70 out. I put my airbox back in w/the
> pre-screen and cone removed and a K&N filter.
>
> Wow what a difference! I now have more low end and more pull to red
> line. It's like I gained 10 HP! Granted today was really hot and in
> cooler weather it may not make as much of a difference, but I'm now a
> believer. Anyone want a P-slow?
>
> _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
> Philip Meadows Jr.
&gt; &#112;meadows&#64;post.smu<img src=/i/de.gif border=0 width=35 height=15>
> http://www.smu.edu/~pmeadows

- --
Mike

Mike Bigus ==&gt; &#71;TiVR6r&#64;ix<img src=/i/dn.gif border=0 width=35 height=15>com<img src=/i/dc.gif border=0 width=35 height=15>    &gt;&gt; GTi NUT 1 &lt;&lt;
'96 GTi VR6 Tornado Red with a 3/96 born on date CSP
If Ted Kennedy had only driven a Volkswagen Bettle on
that fateful night, he'd probably be president. ;-)

I just put my stock airboz back in no mods. After running it 4 hours, the
temp going into the engine was the same outside 77-80 degrees F. Now I took
that back out and put back the ramair filter, and the airbath. Ran that the
next day the whole day, the temp was 79-82 Degrees F.

Next day removed airbath. Shit. 120 Degrees - 134 degrees F. Quickly put the
airbath back on and temp dropped.

Just thought I would add that. So anyone who hasn't done the intake mod yet,
just modidy the the stock airbox, but if you like the sound of the P-Flo
then be ready to fork out money for the airbath, if you want sound and
HorsePower..

Just my $5.65 worth


Patrick Sherman
mailto:&#112;atrick&#64;volkswagen<img src=/i/do.gif border=0 width=35 height=15>
1997 VENTO VR6 / Tornado Red / 18K
"One cannot live on air alone....Add Water"

--
For info on: how to subscribe & unsubscribe, the list's mailing errors,
    list archive, etc.  see:   http://www.panix.com/~aqn/gti_vr6_list/

Well I just finished a temperature test of the Cool flow, Mildly modified stock airbox and the Cool flow without the heat shield( simulated p-flow ).  All results will be posted on my site this weekend.  As a quick note:  All of you P-flow users w/ no heat shield-better get one or get rid of it!  It took an average speed of 80 mph in 59 degree weather to get the the temp sensor on the simulated P-flow down to approx. 100 degrees (going off of memory right now) of intake temps.  The midly modified airbox and the cool flow both posted 64 degrees of intake temps at 80mph.  I also tested other speeds as well..idle, 25 , 40, and 60mph. **the temp sensor was hooked on the front of the air filter of the cool flow and inside the modded airbox on the RAMair filter.   Many more details to come!

More food for thought

Russell
http://www.supremepower.com/gshock.html
--
For info on: how to subscribe & unsubscribe, the list's tech/how-to
    library, etc.  see:   http://www.panix.com/~aqn/GTI_VR6/gti_vr6_list/

    One thing that a lot of people might be neglecting is the Temperature of
the underhood air as opposed with the air that is being introduced to the
filter element.  At least in summer conditions, the underhood temperatures
can be in excess of 120 degrees.  It has been proven that the colder the air,
the more horsepower can be produced.  Thats why everyone has been talking
about their cars being that much faster since wintertime.
    Before I got my airbath, I relocated the outside air temperature sensor
inside my K&N open filter.  The readings I got (In March, in New Mexico)
would start off around 65 degrees, and as the engine would get hotter, it
would raise to about 75-80.  The outside temperature was around 55.  When I
installed the airbath, I would start to drive the car, then start monitoring
the temperature.  When I first tested the airbath, it was at 75 (warm motor),
and I drove it for about 1 mile, and then it was down to 55.  And the
difference in the pull above 3500 rpm was noticeable.
    Just another thing to think about....and lets not turn this into a P-Flo
sucks hot air debate...please!

Matt
95 GLX "Airbath'ed and loving it" edition
http://www.vr6.org/matts.htm