[TPR] Carb and fuel pump

[michael at michaelshortt.com]

Asa,

How restrictive is your air intake apparatus?  If too restrictive,  that
can have dramatic effect, imagine an asthmatic running a marathon.

Michael
On Dec 8, 2013 2:17 PM, "Asa Jay Laughton" <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, quench chamber.
> Cam is a Crane hydraulic roller with these specs
>
> 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.comhttp://www.teampanteraracing.comhttp://facebook.com/racingagainstautism
>
> --
> Asa Jay Laughton, MSgt, USAFR, Retired
> & Shelley Marie
> Spokane, WA
> ******************************     http://www.racingagainstautism.comhttp://www.teampanteraracing.comhttp://facebook.com/racingagainstautism
>
>
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>
>
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