[DeTomaso] Carb and fuel pump

[Will Kooiman]

I agree.  I bought my car with a stock 351C + torker, big bore headers,
Mallory dual point, and an Edelbrock carb.  The fuel lines and fuel pump
seemed to be original.  The pump was the factory style anyway.

It had plenty of pull at 130mph (on a track).

So, I don't think it's the design/size of anything that's the issue.  The
best way to know is to put a fuel pressure gauge, and an A/F gauge on it.
They are both pretty inexpensive.
--
Will





On 12/8/13 11:59 PM, "dave londry" <davel at emspace.com> wrote:

>Quicker to get the A/F meter in and watch it happen.
>Any of the "too little fuel" causes will show high A/F numbers PDQ.
>I would have expected you to get the dryout symptoms including big
>detonation.
>
>All that would make one think you'd run out of flow,
>  but a stock Pantera with the crappy little carb has plenty of jump at
>130.
>
>Seems like a quality mystery to me.
>dave
>
>On 08/12/2013 3:05 PM, Will Kooiman wrote:
>> Or the stock fuel line/sock.
>>
>> On Dec 8, 2013, at 3:35 PM, Asa Jay Laughton <asajay at asajay.com
>> <mailto:asajay at asajay.com>> wrote:
>>
>>> Hi all,
>>>
>>> This year (2013) at the Silver State Classic Challenge, I recorded a
>>> top speed in the trap of 130.7 MPH.  When I reached the countdown to
>>> the trap I was already doing just shy of that to bank time before the
>>> Narrows.  I consciously pressed the accelerator a bit more to push
>>> her up to a goal 135 MPH, but nothing happened.
>>>
>>> I speculate at 130 MPH, I'm using up all the carb, or all the fuel
>>> pump.  One, the other, or both.
>>>
>>> The Carb is a Ford stamped Holley list with these numbers:
>>> D8PE-9510-KA
>>> LIST 8414
>>> 3113
>>> This link shows my email back in 1999 with info from Holley that I
>>> obtained.
>>> http://poca.com/detomaso/1999-09/329.html
>>> Apparently it's a 600 cfm.  it has vacuum secondaries and
>>> three-quarter turn emission lockouts on the mixture screws.  I've put
>>> a standard rebuilt kit through it once or twice.  It's been a really
>>> good carb, but I don't know it will pull more than 130 MPH.
>>>
>>> What to do.
>>> As always, money is a bit of an issue.  I'd like to install EFI but
>>> that's really expensive.
>>> I'd like to keep it responsive at low rpm like she is now, but still
>>> have the throughput needed at higher rpm at top speeds.  I think this
>>> leans me toward a vacuum secondary rather than mechanical.  I'm sure
>>> the cfm needs to be cranked up, but would 650 do it or should I head
>>> for 700 or higher?
>>>
>>> Does anyone have one they'd be willing to part with?
>>> Should I send mine into someone like Chuck Nuytten and have them do
>>> their magic on it, replacing metering blocks and other mods?
>>> Should I just buy a new one?
>>>
>>> The engine is a 351C bored .030 over, stock stroke.
>>> Heads are DOAE <javascript:openWindow(1);>, quench
>>> <javascript:openWindow(2);> chamber.
>>> Cam is a Crane hydraulic roller with these specs
>>> <Mail Attachment.png>
>>> Intake is an FPP 4145
>>> Stock ZF transmission
>>>
>>> I've got some time so I'm looking for some informed/experienced
>>> opinions on what carb would be best.
>>>
>>> And since Professor Engles from the Midwest Division of the Pantera
>>> Research Institute is engaged with Fuel pump questions, I'll just
>>> follow his thread on that part. :)
>>>
>>> Thanks,
>>> Asa Jay
>>>
>>>
>>> -- 
>>> Asa Jay Laughton, MSgt, USAFR, Retired
>>> & Shelley Marie
>>> Spokane, WA
>>> ******************************
>>> http://www.racingagainstautism.com
>>> http://www.teampanteraracing.com
>>> http://facebook.com/racingagainstautism
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>>
>>
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