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Good info Steve, much appreciated. It'll make me think.<br>
<br>
I gotta get that O2 sensor installed.<br>
<br>
Asa Jay<br>
<pre class="moz-signature" cols="72">Asa Jay Laughton - W7TSC, MSgt, USAFR, Retired
& Shelley Marie
Spokane, WA
******************************
<a class="moz-txt-link-freetext" href="http://www.racingagainstautism.com">http://www.racingagainstautism.com</a>
<a class="moz-txt-link-freetext" href="http://www.teampanteraracing.com">http://www.teampanteraracing.com</a>
<a class="moz-txt-link-freetext" href="http://facebook.com/racingagainstautism">http://facebook.com/racingagainstautism</a></pre>
<br>
On 8/14/2015 6:41 AM, Steven Donegan via TPR wrote:
<blockquote
cite="mid:1707386737.4666580.1439559699492.JavaMail.yahoo@mail.yahoo.com"
type="cite">
<div style="color: rgb(0, 0, 0); background-color: rgb(255, 255,
255); font-family: HelveticaNeue-Light,Helvetica Neue
Light,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;
font-size: 16px;">
<div>A reading from the book of Holley:</div>
<div id="yui_3_16_0_1_1439384791588_157323">-----<br>
</div>
<div dir="ltr" id="yui_3_16_0_1_1439384791588_157324">Holley
carbs are calibrated for sea level operation and an inlet air
temperature of 70 degrees Fahrenheit. Once you know the
correct stock jetting for your particular Holley carb, you can
determine whether you live or race at an altitude above sea
level. For every 2000 foot increase in altitude, you can
reduce the jet size by one size. If you had a carb which has a
stock jet size of 80 and you live or race at 2000 feet above
sea level, then you would use a #79 Holley jet in the carb.
Similarly, a change in the carb's inlet air temperature may
require a change in the jet size from the stock calibration.
Many racers go a step further by combining all of the weather
varibles, temperature, barometric pressure, dewpoint and
humidity with the altitude of the track they are racing at to
determine the "density altitude". This is a "corrected"
altitude above sea level. From there they can determine
whether a jet change is necessary to maintain performance or
whether to change their "dial in" (if they are bracket drag
racers). <br>
</div>
<div id="yui_3_16_0_1_1439384791588_157438" dir="ltr">-----</div>
<div dir="ltr"><br>
</div>
<div id="yui_3_16_0_1_1439384791588_157439" dir="ltr">So
assuming you don't care if you run lean at sea level, your
optimal jet size for 6000 ft is likely 3 sizes smaller than
optimal at sea level. Now if you don't want to be changing
jets then assume you will run rich during the race... <br>
</div>
<div id="yui_3_16_0_1_1439384791588_157466" dir="ltr"><br>
</div>
<div id="yui_3_16_0_1_1439384791588_157442" dir="ltr">BTW - the
ATIS information at Ely airport would give you all the info
you need to calculate density altitude if you wanted to get
really picky :-)</div>
<br>
<div id="yui_3_16_0_1_1439384791588_157496" dir="ltr"><br>
</div>
<div id="yui_3_16_0_1_1439384791588_157440"><span
id="yui_3_16_0_1_1439384791588_157467"></span></div>
<div id="yui_3_16_0_1_1439384791588_157441"> </div>
<div id="yui_3_16_0_1_1439384791588_157469" class="signature">
<div id="yui_3_16_0_1_1439384791588_157468">____________<br>
Steven Donegan<br>
KK6IVC FCC General Class License<br>
SSCC/NORC Life Member, Car #86<br>
<a class="moz-txt-link-abbreviated" href="http://www.sscc.us">www.sscc.us</a><br>
</div>
</div>
<br>
<div style="font-family: HelveticaNeue-Light,Helvetica Neue
Light,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;
font-size: 16px;">
<div style="font-family: HelveticaNeue,Helvetica
Neue,Helvetica,Arial,Lucida Grande,sans-serif; font-size:
16px;">
<div dir="ltr">
<hr size="1"> <font size="2" face="Arial"> <b><span
style="font-weight: bold;">From:</span></b> mark
skwarek via TPR <a class="moz-txt-link-rfc2396E" href="mailto:tpr@teampanteraracing.com"><tpr@teampanteraracing.com></a><br>
<b><span style="font-weight: bold;">To:</span></b> Asa
Jay Laughton <a class="moz-txt-link-rfc2396E" href="mailto:asajay@asajay.com"><asajay@asajay.com></a>;
<a class="moz-txt-link-rfc2396E" href="mailto:tpr@teampanteraracing.com">"tpr@teampanteraracing.com"</a>
<a class="moz-txt-link-rfc2396E" href="mailto:tpr@teampanteraracing.com"><tpr@teampanteraracing.com></a> <br>
<b><span style="font-weight: bold;">Sent:</span></b>
Friday, August 14, 2015 6:23 AM<br>
<b><span style="font-weight: bold;">Subject:</span></b>
Re: [TPR] Asa's progress<br>
</font> </div>
<div class="y_msg_container"><br>
<div id="yiv0512424809">
<div>
<div style="color: rgb(0, 0, 0); background-color:
rgb(255, 255, 255); font-family:
HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida
Grande,sans-serif; font-size: 12px;">
<div><span>Glad to hear about your success. You
might want to make sure your jets are for the
higher altitude in Nevada.</span></div>
<div><span></span><br clear="none">
</div>
<div
id="yiv0512424809yui_3_16_0_1_1439558266248_6289"><span>Mark</span></div>
<br clear="none">
<div class="yiv0512424809qtdSeparateBR"><br
clear="none">
<br clear="none">
</div>
<div class="yiv0512424809yqt3339146814"
id="yiv0512424809yqt93663">
<div class="yiv0512424809yahoo_quoted"
style="display: block;">
<div style="font-family: HelveticaNeue,Helvetica
Neue,Helvetica,Arial,Lucida Grande,sans-serif;
font-size: 12px;">
<div style="font-family:
HelveticaNeue,Helvetica
Neue,Helvetica,Arial,Lucida
Grande,sans-serif; font-size: 16px;">
<div dir="ltr"> <font size="2" face="Arial">
On Friday, August 14, 2015 12:50 AM, Asa
Jay Laughton via TPR
<a class="moz-txt-link-rfc2396E" href="mailto:tpr@teampanteraracing.com"><tpr@teampanteraracing.com></a> wrote:<br
clear="none">
</font> </div>
<br clear="none">
<br clear="none">
<div class="yiv0512424809y_msg_container">In
my best Gene Wilder voice...<br
clear="none">
<br clear="none">
ALIVE!.... ALIVE!.... IT'S ALIVE!!!<br
clear="none">
<br clear="none">
I forgot to grab the extra bits I needed
on the way home, so after <br
clear="none">
dinner it was back to Napa and then to
Autozone to get the fittings for <br
clear="none">
the fuel and vacuum. Done deal, I picked
up the brass fuel fittings <br
clear="none">
from Napa though I had to do a two-piece
kludge to get 90* and the size <br
clear="none">
I wanted for the fuel line; at Autozone I
picked up a large variety pack <br
clear="none">
of vacuum fittings and a large variety
pack of vacuum plugs.<br clear="none">
<br clear="none">
Once home, I fit the 90* fitting onto the
fuel log, an appropriate size <br
clear="none">
vacuum fitting on the ported vacuum port
and set about final float <br
clear="none">
adjustments.<br clear="none">
<br clear="none">
I'm beginning to love this little
hand-held vacuum pump. It came with a <br
clear="none">
reservoir so you can either suck fluid
without getting it into the pump, <br
clear="none">
or push fluid out in a neat manner. With
that in mind, I used the pump <br
clear="none">
to get some gas out of Shelley's Jeep
(don't tell her that). I then <br
clear="none">
reversed the pump, attached it to the fuel
log of the Holley and started <br
clear="none">
pumping.<br clear="none">
<br clear="none">
With the sight plugs removed, I could see
the floats rising until they <br
clear="none">
stopped. They both stopped short of the
sight holes so I raised them <br
clear="none">
each about a quarter to half turn. I'm
sure glad I did this on the <br
clear="none">
bench and not on the car... those
center-hung fuel adjusters for the <br
clear="none">
needle and seat can leak like a mother
when you loosen the screw to <br
clear="none">
adjust the nut. Good grief!<br
clear="none">
<br clear="none">
Once the floats were adjusted I installed
the sight plugs and put the <br
clear="none">
carb on the engine. I snugged everything
down, routed the fuel lines, <br
clear="none">
vacuum lines, attached linkage and the 12V
feed to the choke. After <br
clear="none">
installing the air cleaner, I pulled the
Halon fire extinguisher out and <br
clear="none">
set it on the seat next to me.<br
clear="none">
<br clear="none">
For some reason, I kept thinking of the
next door neighbor kid when I <br
clear="none">
was young. He was 16 or 17 and had an
early 70's Camaro. One night he <br
clear="none">
was messing around with the carb (not that
he was the brightest bulb in <br
clear="none">
the box) and he got a backfire that lit it
on fire... in the garage.... <br
clear="none">
under the house.<br clear="none">
<br clear="none">
The house burned completely to the ground.<br
clear="none">
<br clear="none">
I figured if mine caught fire I'd throw it
into reverse and get it out <br
clear="none">
of the garage, then put out the flames.<br
clear="none">
<br clear="none">
One pump on the pedal and she fired on the
first turn... and idled <br clear="none">
smoothly without intervention.<br
clear="none">
<br clear="none">
HoooHAAA! She's alive and purrs.<br
clear="none">
<br clear="none">
I grabbed my drop-light and did an
inspection around the carb while <br
clear="none">
running to check for leaks. Finding none
after a bit of engine rumbling <br
clear="none">
I shut it down and quit for the night. I
have to pick up friends at the <br
clear="none">
airport in a little while. I'll monkey
with fine tuning it all tomorrow <br
clear="none">
and this weekend.<br clear="none">
<br clear="none">
But right now... that old Holley 3310-2
(modified) from Mark is working <br
clear="none">
after about $150 in parts and some of my
evening time over the last week <br
clear="none">
or two.<br clear="none">
<br clear="none">
Fun times,<br clear="none">
Asa Jay<br clear="none">
<br clear="none">
Asa Jay Laughton - W7TSC, MSgt, USAFR,
Retired<br clear="none">
& Shelley Marie<br clear="none">
Spokane, WA<br clear="none">
******************************<br
clear="none">
<a moz-do-not-send="true" rel="nofollow"
shape="rect" target="_blank"
href="http://www.racingagainstautism.com/">http://www.racingagainstautism.com</a><br
clear="none">
<a moz-do-not-send="true" rel="nofollow"
shape="rect" target="_blank"
href="http://www.teampanteraracing.com/">http://www.teampanteraracing.com</a><br
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<a moz-do-not-send="true" rel="nofollow"
shape="rect" target="_blank"
href="http://facebook.com/racingagainstautism">http://facebook.com/racingagainstautism</a><br
clear="none">
<br clear="none">
<div class="yiv0512424809yqt6506303665"
id="yiv0512424809yqtfd68117"><br
clear="none">
On 8/12/2015 9:43 PM, Asa Jay Laughton
via TPR wrote:<br clear="none">
> Just about finished the carb
tonight after running into some
necessary <br clear="none">
> changes; all this prior to mounting
on the car.<br clear="none">
><br clear="none">
> I found the choke fast idle cam was
broken and missing the <br clear="none">
> bob-weight. The one on my current
Holley was fine. I swapped the cam <br
clear="none">
> to the rebuilt 3310. Then I had
planned on using my existing choke <br
clear="none">
> cover except that it really should
have manifold heat (it's not <br
clear="none">
> electric), but the passage in the
intake is blocked because the heater <br
clear="none">
> gizmo didn't fit properly when I
rebuilt the engine. So I thought <br
clear="none">
> about using the electric that came
with the 3310, except that it was <br
clear="none">
> kind of funky with a hand soldered
connection on one side; I didn't <br
clear="none">
> really trust it. Then my long-term
memory kicked in and I scrounged <br
clear="none">
> through some old drawers with
Mustang parts.<br clear="none">
><br clear="none">
> Aha! An older Motocraft electric
choke cover in great condition. It <br
clear="none">
> might not be calibrated for Holley
but it's essentially the same. So <br
clear="none">
> I put that on. Oh, but did I
mention I don't really have an electric
<br clear="none">
> supply to the choke? More on this
later.<br clear="none">
><br clear="none">
> Then I noticed the linkage wasn't
nearly the same. I thought it was <br
clear="none">
> close but didn't worry about it
until tonight. Argh!<br clear="none">
><br clear="none">
> I thought about swapping the base
plates, but the 3310 has larger <br
clear="none">
> bores; that wouldn't work.<br
clear="none">
><br clear="none">
> I thought about swapping throttle
shafts, but the screws in the <br
clear="none">
> throttle plates are staked and it's
too much work to swap; that <br
clear="none">
> wouldn't work.<br clear="none">
><br clear="none">
> As it turned out, the funky (I
actually think it's GM) lever on the <br
clear="none">
> primaries had a nice hole in just
about the right spot where the <br
clear="none">
> linkage needs to hook up. And it
just so happened that I had a spare <br
clear="none">
> ball post that I could mount
there. Nearly perfect! We'll check the
<br clear="none">
> entire throttle throw once we have
it mounted on the car.<br clear="none">
><br clear="none">
> However, when I went to swap the
electric throttle positioner which <br
clear="none">
> holds the idle when the car is
running and allows the throttle plates <br
clear="none">
> to -completely- close when the
ignition is switched off, I found the <br
clear="none">
> accelerator pump mechanism is
larger and in-the-way of mounting the <br
clear="none">
> electric positioner. Argh!<br
clear="none">
><br clear="none">
> Well, I -could- swap the pump lever
from my existing carb but it's got <br
clear="none">
> a lighter spring assembly and I'm
not sure it would be calibrated <br
clear="none">
> correctly (spring-tension-wise).
And I don't -really- need the <br
clear="none">
> electric positioner if I dial the
idle in correctly, so let's just <br
clear="none">
> leave it off<br clear="none">
><br clear="none">
> Well, wouldn't you know... that
leaves me a 12V source that's only ON <br
clear="none">
> when the ignition is ON. Now where
could I possibly use that? OH! I <br
clear="none">
> know.... how about the electric
choke? Yea, that'll work.<br
clear="none">
><br clear="none">
> All that's left is to mount the
fuel lines, do a final adjust on the <br
clear="none">
> floats and hit the road. But
before I get that far I have a couple <br
clear="none">
> more parts to get.<br clear="none">
><br clear="none">
> The supply line on the car is a
5/16" metal tube, which means I need a <br
clear="none">
> 5/16" hose barb fitting to 3/8" NPT
fitting to the supply line on the <br
clear="none">
> carb. I can pick one up at Napa
tomorrow. The ported vacuum on my <br
clear="none">
> present Holley is the small size,
same as the vacuum advance on the <br
clear="none">
> distributor. The ported on this
3310 is about twice the size so I <br
clear="none">
> need to get a reducer and some
hose. I'm currently running the dual <br
clear="none">
> diaphragm vacuum advance, and no
it's not necessarily been dialed in <br
clear="none">
> properly. I really need someone
with a distributor machine, or I need <br
clear="none">
> to cough up the money for a
whizbang electronic distributor with <br
clear="none">
> computer controlled
advance/retard. But you know... if I go
that far <br clear="none">
> I might as well buy a fuel
injection system that can take advantage
of <br clear="none">
> that. <sigh><br clear="none">
><br clear="none">
> Everything else seems to be
alright. OH, one last thing.<br
clear="none">
><br clear="none">
> I sighted in the level on the
intake pad, it' has a slight forward <br
clear="none">
> tilt; that's expected on the
Pantera. Some time ago I purchased a <br
clear="none">
> "wedge-plate" to try and level it
up. When I test fit it tonight and <br
clear="none">
> checked level, it had about twice
as much tilt to the rear as the <br
clear="none">
> manifold did to the front without
the wedge. So I'm not going to put <br
clear="none">
> the wedge on. What I really need
is a wedge at about half the angle <br
clear="none">
> this one is.<br clear="none">
><br clear="none">
> My thoughts are to set final float
level on the bench by rigging the <br
clear="none">
> base to be at about the same angle
as the intake on the car, then <br
clear="none">
> priming the fuel bowls manually and
adjusting the floats via the sight <br
clear="none">
> holes. Since the needle and seats
are at the far ends of the fuel <br
clear="none">
> bowls and the floats nearer the
meter blocks, I think I need to set <br
clear="none">
> the front (primary) to be just a
touch high, and the rear to be just a <br
clear="none">
> touch low. That should give me
approximately the same amount of fuel <br
clear="none">
> in each. Any thoughts from other
experts?<br clear="none">
><br clear="none">
> Alright, enough of a tome for
tonight, more tomorrow.<br clear="none">
> Asa Jay<br clear="none">
><br clear="none">
> Asa Jay Laughton - W7TSC, MSgt,
USAFR, Retired<br clear="none">
> & Shelley Marie<br
clear="none">
> Spokane, WA<br clear="none">
> ******************************<br
clear="none">
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rel="nofollow" shape="rect"
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