[TPR] Carb and fuel pump

[B Hower]

FWIW -- I have had a gps reading of 147 mph with a 600 cmf Holley and stock style aftermarket fuel pump. Engine was running iron 4V heads, .030 over bore. Isky hyd cam.


 
Bud #3400 ( Drive it like there is no tomorrow -- for there may not be ! )



On Sunday, December 8, 2013 1:27 PM, "michael at michaelshortt.com" <michael at michaelshortt.com> wrote:
 
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.com http://www.teampanteraracing.com http://facebook.com/racingagainstautism
>-- 
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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