Paxton question.

[pbf777]

Will offer (not saying it is a smoking gun but must be at least noted) that I've found pictures of two unrestored 67 GT350's that both appear to have modified steel standard fuel line from pump to carb area of the intake.

    This is as I remember it  ; but sorry no documentation. 

    As I recall, the single longer length of rubber hose provided (with clamps) was to be attached to the O.E.M. steel fuel line as threaded into the pump, but which was to be sectioned somewhere about as it emanated from behind any accessories mounted and forward of the intake manifold. Specifics were vague on specifically where to cut the steel line, and the sum of hose provided was generous, but I suppose considering the "universal" application approach this was to be expected; but it seemed a bit suspect in that they felt 'just' clamping the rubber hose to the steel line being cut, but without any sort of proper beading of the steel line for hose retention, just always seemed a bit sketchy. 

    B.T.W. Does anybody have a bill of materials list for one of these (of the period) and if so, is there a line item for a threaded hose-barb fitting for the fuel pump?   

    Scott.

[J_Speegle]

.................  B.T.W. Does anybody have a bill of materials list for one of these (of the period) and if so, is there a line item for a threaded hose-barb fitting for the fuel pump?   

    Scott.

The instructions along with the additional pages from whomever originally scanned them is the same group of documents I have also. One of the pages after the instructions includes a list of (page 11 of the 13 in this group) parts. 53 items with one removed/crossed out of the list and based on the fonts a couple of items added - example hose for the "smog" attachment.

There is a list on one of the following

[Rickmustang]

I got that document in hard copy 40 years ago with a Paxton.

[J_Speegle]

I got that document in hard copy 40 years ago with a Paxton.

Thanks  Interesting mix of "new" and old but not unusual for the time period from some makers

[shelbydoug]

Another thing to confirm: I recall that an Autolite carb was to be installed and not the Holley 715.

I think that likely the variation on the details is as stated, "depends on the model year".

The picture that Brian posted, agrees pretty closely with what the '68 blueprint that I have illustrates, with one exception, the drawing shows a carb with an air horn intact.

Considering the date of that drawing and the close resemblance of the carb to the '68 S8MS-9510-A and C carbs, I would guess, one of those was the model for the drawing?

Knowing of the space limitations of the air box, although I've never attempted to fit a Lemans bowl carb in the box, and I have my doubts it will fit?



I do agree that I have heard the discussion that the air box was intended for an Autolite carb initially. I'm not aware of different castings for the various carbs possible but who knows for sure?

They all were "add on kits". Just the tops seem to vary with the Paxton, Shelby and Cobra monikers.


I should point out also that I think the original steel fuel lines were intended for the Autolite carbs and not specifically for the Holleys. So the left and right side connections can vary according to the applications?

[BGlover67]

Another thing to confirm: I recall that an Autolite carb was to be installed and not the Holley 715.

You are correct Sir, but the Holley swap is a pretty common detail these days I was told from Craig.

[Road Reptile]

Hi Brian and all Paxton owners,
Just a message from years of twisting wrenches. Fuel line must be checked constantly as it will degrade with age. That is why it is date coded. Also noticed so far no one has mentioned how important it is to seal the fuel line to the bonnet. The pic posted shows a grommet that should do the job. A small pressure loss from an air leak hurts performance. Another important part is the exhaust system. Craig Conley has spent years with these and Knows the best setup. Have fun and enjoy the drive.
R.R.

[98SVT - was 06GT]

The unit is blue, and the carb box says Cobra, not Shelby.  I was reading on Pete disher's website that the Shelby version is much rarer.

CS lost rights to the Cobra name in mid 67 so any he sold after that would have said Shelby.

Another thing to confirm: I recall that an Autolite carb was to be installed and not the Holley 715.

The 715 with the LeMans bowls would not fit. The Autolite was easiest to use. It had more room - could be rejetted from the top - etc.

[Bob Gaines]

Another thing to confirm: I recall that an Autolite carb was to be installed and not the Holley 715.

I agree with that observation. I also remember that a least that on some 66 cars that the 65 style fuel pump with integral fuel filter was modified and used. On the later cars the Carter clam shell pump without filter was modified to be used and a clear fuel filter was plumbed inline on the rubber hose to the bonnet. 

[TA Coupe]

Here's some pictures of Paxton literature that I bought from a Paxton installation business that went out of business in the mid 70's. The IRS was holding an auction and Jack Schroll who owned Mostly Mustangs bought most of the Paxton stuff. Lots of magnesium pulleys, belts and a lot of blueprints for putting blowers on cas as late as a 240z. I Remember that because we had one at the time.
The pictures in Red are a single sheet front and back. The pictures to follow are a single large sheet that was folded to make 4 pages. Both were folded twice to make them 1/3 the size. I have extras of both if anyone is interested in buying. $25 for a pair that includes mailing.

        Roy

[TA Coupe]

Pictures of the other literature.

    Roy

[BGlover67]

Thanks Roy, those sheets are great, thanks for sharing them.  Are those numbers really to be believed? I mean 0-60 with a stock 3.89 rear going from 7.7 seconds to a pretty impressive 4.4 seconds for the blown version. 

[Harris Speedster]

TA coupe,
great material, pictures are always worth a thousand words!

Seeing one of the 2 ways air cleaners were mounted is cool also.
Made me go back in my stash, found a early square air bonnet, pulley & more>>  like the one in
the article you introduced.
Thanks
John

PS, Quick edit>>  I also noticed that there appears to be a brass fitting with a hose connected to it in the bonnet, look closely at the pic with the guy in white shirt and tie.

[TA Coupe]

Is this what you are referring to?

      Roy

[Harris Speedster]

Is this what you are referring to?

      Roy

Roy,
Yes, that is what caught my eye,

I wanted to make a correction in my initial post, the original 1966 paxton set up, had late 66-67 date. The SAAC member did buy it for an early Paxton built 1967 GT 350.