DCOE fule pressure

[o2obsessed]

How much fuel pressure should be ran with the dual 40 dcoe's? Should i use some sort of adjustable fpr? Thanks in advance for you help.

[mcmil]

(nt)

[jdp530]

Mcmil is right, about 3 to 3.5lbs. I do use an inexpensive fuel pressure regulator on both of my cars, '76 '02 with dual 40s and a '76 530 with triple 40s. I do not use a return line on either car.

[SteveH]

Mcmil is right, about 3 to 3.5lbs. I do use an inexpensive fuel pressure regulator on both of my cars, '76 '02 with dual 40s and a '76 530 with triple 40s. I do not use a return line on either car.

2.5-3.5. I don't notice a difference.

I use a regulator and no return line, which may explain why the pressure ramps up when the engine is shutdown. There seems to be a bunch of different suggested pressures depending on when the information was published, and who wrote it. I remember seeing an "old" "wrong" (around 2 lbs) pressure and a new pressure that was slightly higher.

[BigDog]

I think it's as much the volume as the pressure. I run the Carter pump that is reccomended, and it works great!

It's a 4070 pump, and available for about $30 less at Summit Racing.

Here's the TEP link about fuel.

http://www.racetep.com/webfuelspark.html#webfuel

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BigDog

'76 2002 Weber DCOE40s

[ridr4lif]

I think it's as much the volume as the pressure. I run the Carter pump that is reccomended, and it works great!

It's a 4070 pump, and available for about $30 less at Summit Racing.

Here's the TEP link about fuel.

http://www.racetep.com/webfuelspark.html#webfuel

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BigDog

'76 2002 Weber DCOE40s

I use this pump and have had no problems with it.

[TobyB]

without seat recession problems...

but I run a pair of Holley Blue pumps (not the best choice, admittedly)

with bypass Mallory regulators.

TEP is a bit over the top on the whole fuel pump thing- as long as you have STABLE pressure, our cars don't need a huge amount of volume, even at WOT for long periods

The Carter pumps seem to have identical delivery characteristics to the Holleys- and I'd run a bypass regulator on 'em, just 'cause.

t

[toddman]

Ditto. I use this pump, it's mounted in my trunk with a fpr. I am told an fpr is unnecessary....

[BigDog]

Mounted mine in the front, where the battery used to be, I also run a Filterking filter/regulator, but the reg portion really isn't needed.

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BigDog

'76 2002