[DeTomaso] The 351C Fuel Pump Chronicles

[Charles Engles]

Dear Will,


          Yes, it is remarkably similar.....and price is about the same, I
think!


                       Warmest regards, Chuck Engles




-----Original Message-----
From: Will Kooiman [mailto:will.kooiman at gmail.com] 
Sent: Sunday, December 21, 2014 8:01 AM
To: Charles Engles; 'De Tomaso List'
Subject: Re: [DeTomaso] The 351C Fuel Pump Chronicles

That sounds like the same thing that Robb M. does to his pumps.
--
Will





On 12/20/14 2:24 PM, "Charles Engles" <cengles at cox.net> wrote:

>   Dear Forum,
>
>
>
>                              As I have mentioned, the supply of high
>   performance mechanical fuel pumps for the Cleveland from Holley and
>   Edelbrock has dried up.
>
>
>                              A recent dyno test showed that my nearly new
>   Holley pump was anemic.   I sent it to John Christian for a fix.   JC
>   decided to ever so slightly re-engineer it.
>
>
>                            He removed the  lower part of the pump; made
>   an adapter ring that permitted bolting a CV 5 valve body to the Holley
>   main.   This modification does nothing for the absolute volume of each
>   pump action, but it does increase the efficiency of each stroke.
>   It pumps one gallon at 2 psi in 38 seconds.  That is enough fuel to
>   support approx 1100 hp.   The flow would be slightly less at higher
>   pressures.
>
>
>                             I am not running 1000 hp engines, but I might
>   need another hipo fuel pump for another engine.   If you have a dead or
>   unwanted Holley hipo fuel pump, then I would be keen to have it.
>
>
>
>                                           Warmest regards,  Chuck 
> Engles
>
>
>   PS: also looking for unwanted dead Pantera tachometers........
>
>
>
>
>    Dear Dr. Engles, Yes there are a couple new parts involved. The
>   adapter ring allows me to marry the CV 5-vavle body to the Holley main.
>   This mod does nothing for the absolute volume of each pump action -
>   instead it increases the efficiency of each stroke. I did not test the
>   pump as received - someday I will take a 'stock' Holley pump (if I ever
>   get another one from somebody) and run it on the engine like in the
>   pictures. What I *CAN* tell you is that I ran the pump to verify that
>   A: there were no leaks and B: it pumped a reasonable volume. I ran the
>   engine at 3000 rpm and measured the flow at ~2 psi. I did it twice to
>   make sure I didn't get a false indication the first time.
>
>   $$$$$$$$  I think you should be reimbursed for the work.   New parts,
>   machining, not only "fixed", but improved.  Let me know.
>
>   Basically it pumps one gallon (at 2 psi) in 38 seconds. That is enough
>   fuel to support ~1100 Hp. I suspect the flow will be slightly less at
>   higher pressures. I also ran the pump 'dead headed' and it was right at
>   7 psi.
>
>   $$$$$$$$  Well, that should be adequate.
>
>   I encourage you  to share this story with your Pantera brethren. As you
>   know - it drives me crazy to see good hardware just put on a shelf or
>   discarded when all it needs is a little good sense engineering.
>
>   $$$$$$$$$   How much do you want me to share?   Do you want to be
>   spotlighted as the guy to rebuild and improve the old Holley 351C fuel
>   pumps?    I can keep it very low key or with full details.
>
>
>   J.C. (I have another with ball bearings in the pump arm pivot and a
>   fitting in the atmospheric pressure port so I can use it on 'boosted'
>   engines) I think I had sent you pictures
>
>   $$$$$$$    I tumbled onto the ball bearings in the fuel pump eccentric
>   trick part that *you* came up with decades ago.  I don't think I have
>   seen a picture of the pump you describe above.
>
>                        Warmest regards,  Chuck Engles
>
>   ___________________________________
>
>
>   From: Charles Engles <[1]cengles at cox.net>
>
>   To: 'John Christian' <[2]uniquengines at sbcglobal.net>
>
>   Sent: Thursday, December 18, 2014 8:18 PM
>
>   Subject: The Fuel Pump
>
>
>   Dear JC,
>
>
>
>                           I went over the pictorial story during
>   dinner.   Wow.
>
>
>   1)        Scenes from PRI-South Lyon have remarkable similarity to
>   PRI-Nichols Hills
>
>   2)       You appear to have significantly modified  the Holley rather
>   than just "fixed it"!
>
>
>
>                                Warmest regards, Chuck Engles
>
>References
>
>   1. mailto:cengles at cox.net
>   2. mailto:uniquengines at sbcglobal.net 
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