48 DHLA question
#1
seattle seven
Thread Starter
48 DHLA question
I cant find a #300 needle valve for my dellorto, as installed by racing beat.
I have a #350. Can I run this size needle valve? anyone have experience with this?
I have a #350. Can I run this size needle valve? anyone have experience with this?
#5
seattle seven
Thread Starter
How do your plugs look? Im running an early 4port 13B, rebuilt the carb and installed the new #350. Have not run it yet, waiting for accell pump spacer from RB.
#7
seattle seven
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#8
seattle seven
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#10
seattle seven
Thread Starter
installed the carb, runs great, much improved.. after rebuild.. Still a stumble off idle, but perfect otherwise.
rechecked accell pump, can not get anymore travel... 10.3mm or 13/32" I guess just a trade off.
rechecked accell pump, can not get anymore travel... 10.3mm or 13/32" I guess just a trade off.
Last edited by lwrobins; 11-20-13 at 05:25 PM.
#11
Round and Round
iTrader: (10)
Make sure your fuel pressure is low enough. I drove mine for several years with a stumble until Tim mentioned how he adjusted his pressure regulator. Turn it down until the idle changes. Mine was too high. After I turned it down the stumble was gone and gas mileagle went from 14-15 to 18-20.
#12
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hmm...i think my pressure regulator is turned down as far as I can...its 3 psi...which is still pretty impressive bc i'm using a gslse fuel pump..
#14
Lapping = Fapping
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I'd have to agree. The only reason to keep an EFI pump is if you were boosting (so it covers the increased pressure required when under boost).
Since you are NA, you really should look for a low pressure high volume pump like a Carter. Look for the one with 72GPH and 3/8" fittings. They run like 6psi which can more easily be brought down to 2.5 without stressing the pump so hard.
Since you are NA, you really should look for a low pressure high volume pump like a Carter. Look for the one with 72GPH and 3/8" fittings. They run like 6psi which can more easily be brought down to 2.5 without stressing the pump so hard.
#15
1st Gens are the Best
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One of the reasons i have stayed EFI is the fuel mileage. Has anyone hooked up the vacuum advance on your aftermarket carb, and if so, did it help with the fuel mileage
#17
seattle seven
Thread Starter
Just an update... My car would not run properly with the #350 needle and seat. Went back to the old used #300.. Much better with my particular setup.
#19
seattle seven
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#21
seattle seven
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Car now runs great on #300 needle, but only 90 miles on 1/2 tank of gas?
I see a lot of info about pressure regulators. I have stock pump and no regulator.
Which regulator/pump combo is rec for best reliability etc...
I see a lot of info about pressure regulators. I have stock pump and no regulator.
Which regulator/pump combo is rec for best reliability etc...
#22
Round and Round
iTrader: (10)
I'm using this regulator.
http://www.summitracing.com/parts/hly-12-804/overview/
This Carter seems to be a popular pump. I use twin Facets like the original Racing Beat setup.
http://www.summitracing.com/parts/crt-p4594/overview/
http://www.summitracing.com/parts/hly-12-804/overview/
This Carter seems to be a popular pump. I use twin Facets like the original Racing Beat setup.
http://www.summitracing.com/parts/crt-p4594/overview/
#23
seattle seven
Thread Starter
I'm using this regulator.
http://www.summitracing.com/parts/hly-12-804/overview/
This Carter seems to be a popular pump. I use twin Facets like the original Racing Beat setup.
http://www.summitracing.com/parts/crt-p4594/overview/
http://www.summitracing.com/parts/hly-12-804/overview/
This Carter seems to be a popular pump. I use twin Facets like the original Racing Beat setup.
http://www.summitracing.com/parts/crt-p4594/overview/
Will work on pump later..
#24
Waffles - hmmm good
iTrader: (1)
I'm using this regulator.
http://www.summitracing.com/parts/hly-12-804/overview/
This Carter seems to be a popular pump. I use twin Facets like the original Racing Beat setup.
http://www.summitracing.com/parts/crt-p4594/overview/
http://www.summitracing.com/parts/hly-12-804/overview/
This Carter seems to be a popular pump. I use twin Facets like the original Racing Beat setup.
http://www.summitracing.com/parts/crt-p4594/overview/
I also have the dual facets still. Swapped them out with the carter while refurbing my
tank but might just go back to them.
#25
Round and Round
iTrader: (10)
Best price I found was here. 3/8" input and output. More expensive than the Carter when you include all the plumbing to hook them together.
Facet Solid State electric fuel pump - 40109 - Discount Yacht Supplies, Vetus Nautical Accessories, Scandvik Parts, Garmin Marine Electronics
Facet Solid State electric fuel pump - 40109 - Discount Yacht Supplies, Vetus Nautical Accessories, Scandvik Parts, Garmin Marine Electronics