[TPR] Carb and fuel pump

[Charles Engles]

Dear Asa,

 

 

                     I know just enough to be dangerous about your problem.

 

                     I do know that I spoke with Chuck Nuytten about three
weeks ago regarding the custom carb for my new engine.  He is reasonable and
pleasant.  I am sure that if you speak with him, he will give you far better
advice than I can and he can thoroughly review your specific carb questions.

 

 

                                          Warmest regards,  Chuck Engles

 

                  www.chucknuytten.com

 

 

 

From: TPR [mailto:tpr-bounces at teampanteraracing.com] On Behalf Of Asa Jay
Laughton
Sent: Sunday, December 08, 2013 1:18 PM
To: tpr at teampanteraracing.com
Subject: [TPR] Carb and fuel pump

 

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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://teampanteraracing.com/pipermail/tpr_teampanteraracing.com/attachments/20131208/91fb7820/attachment-0003.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.png
Type: image/png
Size: 49535 bytes
Desc: not available
URL: <http://teampanteraracing.com/pipermail/tpr_teampanteraracing.com/attachments/20131208/91fb7820/attachment-0003.png>