Results tagged “carburetor” from Pantera #2245

A couple of car changes lately. I bought the Vader rear deck lid lift
system. It uses a sprung hinge instead of the gas shocks. This is a good
investment considering that the gas shocks only last about 3 years before
the stop keeping your lid up. The install was easy, the product was well
represented. I am very happy.

The second change is my carb. I went from a 750 double pumper holley to a
850 carb from Quick Fuel. It has wedge stops for the floats for hard
cornering, slight glasses for fuel levels, adjustable idle air bleeds, a
proform body, a heavy duty baseplate, CNC metering blocks and lots of other
trick parts. The car runs like a bat outta hell now, no changes to the carb
setup. I gave them my specs and the carb was right on the money.

I haven't done to much work on the car lately. Brigitte and just had our
son Ronan.

We did sign up for the Vegas fun rally this year and plan on attending with the whole family. Part of that plan includes buying a towing rig to tow the Pantera in style. I also signed up for the track event, so I will see you all there.

A few items worth noting on the Pantera. I did remove the radiator and
flush it out. I also removed the air conditioning condensor from the front
of it as well. I also cut out the lower valance where wire grid pattern
used to reside when it was stock. All these changes again made the
cooling system more efficient. During a 65 degree ambient temperature day I
will idle at 150 degrees. I think I got all my cooling issues sorted.

The other change I made was for the carb. I have been fighting that Holley
4779 750 double pumper for quite some time. I did some more noodeling on
the situation and decided that I don't have a vaccum problem. The problem
is the car runs too rich at idle because I have to expose too much of the
idle transfer slot to get it to run. This is caused by low vaccum at idle
and a lopey cam. The solution is to dril 1/16 inch holes in each of the
butterflies in the base plate. This allows more air into the carb when the
plates are closed ( at idle ) and less fuel. This brings back the
adjustability of the idle mixture screws and improves vaccum by 4 or 5 lbs
of vaccum. Therefore I was able to increase my power valve to a #5 and that
improved fuel flow at power conditions. The change worked, the car behaves
much better and faster! I will try to write up my carb expierences for
others to learn from in the near future.

Bang! Happy fourth of july. I added a carb spacer to my pantera today. I
wanted to make a "super sucker" style spacer. They are two in one spacers,
increasing velocity and increasing plenum volume. I didn't wanna pay the
$140 for one of these spacers so I made one from a $50 moroso four hole
spacer. I took a print out of the one to copy and grinded away.

While I was in there I replaced the power valve and main/secondary jets and
stab pump discharge nozzles. After my dyno run last week I wanted to get
the car to where it should be air/fuel wise. I also replaced my 4" air
filter with a 2". I get about a 1" more gap now between the roof and the
air filter top. Result? Oh boy this thing is
so much faster. Seat of the pant's is great. I can really feel the power
and the motor seems to come alive. I don't know if its the jetting or the
spacer but it was definitly worth it.

Now I need to go back to the dyno to see what the results are.
If the results are good then I will buy the real CNC machined spacer.

I picked up my upholstered interior and the powder coated trim this week. I
have finished putting the trim on and one of the door panels is installed.
It came out pretty nice. However it does need some detail added to it so I
ordered some carbon fiber composite sheets which I can cut into a "swash"
and put on the door as the newer style interior is done on the pantera.

I change the jets in the carb back up to 70 primary and 76 secondary. While
driving to the mustang club event I was having problems with backfiring
when the secondaries kicked in and lean surging. However the carb still
idles so rich that it will tear your eyes.

Next on the list is to install the speedo cable, new half shafts, clean up
some more interior, and other cosmetic issues. I am also going to try and
put some mileage on the car as well.

With the help of Kurt Byrnes I was able to adjust my carb properly. I was
running way to high of a power valve which was causing the car to run rich
at all times. This in turn was preventing me from running the right jets.
After a re-jet and power valve change I took the car out for a spin. The
difference is like night and day. I can really tell now that the car has
some serious power. I also gathered the parts for the powder coaters and
did some more wiring in the car. However after a weekend of fun with the
car last night I went to move it into the garage and it failed to start.
The ignition was not working. I will have to check the Electromotive sensor
to see if there are any issues.