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> V8 Fuel pump?
rey
post Sep 15 2004, 04:10 PM
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Hi All, another question,

1...... which electric fuel pump do you use with a v8 ?

2......Dose it need a fuel regulator? what psi dose it need to run at?

3....Or can a stock fuel pump be used with the RH or DH set up?

Need advise here gentlemen starting to drop some dead presidents need to get the right stuff

Thanks (IMG:style_emoticons/default/pray.gif)
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ArtechnikA
post Sep 15 2004, 04:17 PM
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depends almost entirely on your induction system.

carburetors ? what kind? how many ?
fuel injection? TBI? direct port? Marelli? Rochester? Bendix ?

are you running a recirculating or a direct fuel system ?

can't know what kinda pump until we know what it's pumping to ...
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rey
post Sep 15 2004, 05:38 PM
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Okay, It a 283 v8, Edelbrock carb 600cfm only one (IMG:style_emoticons/default/biggrin.gif) , About 250 HP

I dont know, (IMG:style_emoticons/default/confused24.gif) whats a recirculating or a direct fuel system (IMG:style_emoticons/default/confused24.gif)
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Andyrew
post Sep 15 2004, 05:42 PM
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Recirculating is if it needs a return line... like how the 914 has stock... The v8 carbed shouldnt need one.

Im ashamed of my fuel pump im running...

Its the vw one... ermm... ya..

Check ebay for them. I think holley had some that I wanted to get...
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ArtechnikA
post Sep 15 2004, 05:46 PM
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QUOTE(rey @ Sep 15 2004, 03:38 PM)
Okay, It a 283 v8, Edelbrock carb 600cfm only one, About 250 HP

whats a recirculating or a direct fuel system

where are all the V8 people when you need 'em ? ...

ALL 914's originally had recirculating fuel systems.
fuel was drawn from the tank, pressurised, and the excess returned to the tank. search on 'recirculating' and you'll find the thread we just had on this subject.

carbs don't *need* recirculating systems but they have advantages...

IMO - since you have the choice, mount the pump up front, and get one from Summit or somesuch, since it's a match with the carb maybe an Edelbrock - minimises finger-pointing later... or a nice Holley, or a Moroso, or a MSD...

i have NO clue what your specific carb wants to see in the way of pressure but i'm guessing 4-6 psi. run a GOOD fuel regulator. anything you see on the pegboard at the FLAPS probably doesn't qualify... again - check the 'usual' hotrod sources like Summit. get good hose, and good hose clamps. fuel leaks are unpleasant.

almost any "performance" carb (4-6 psi) fuel pump will deliver all the fuel you'll ever need ...
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BIGKAT_83
post Sep 15 2004, 06:01 PM
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I saw on the pelican site that you were interested in a electric water pump. If you use a electric water pump you can use the stock SBC mechanical fuel pump. as long as you mount the alternator on the divers side.
The stock fuel pumps run around $15 at flaps
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rey
post Sep 15 2004, 06:20 PM
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Thanks for the info guy's (IMG:style_emoticons/default/beerchug.gif)

I'm going with a belt driven water pump someone here said they don't last that long about 2000 hr.

How about a Holley red there's a lot of them on ebay. (IMG:style_emoticons/default/happy11.gif)

What about fuel line, Do they need to be replaced? I'm not having any problems with them at the moment?
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Andyrew
post Sep 15 2004, 06:32 PM
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If you havent replaced them. Then Yes, replace them.

Dont need a fuel fire...

The cheap fix is the steel brake lines from your local flaps... Werks good for me. I know others have done the same.

Almost everyone here has a belt driven water pump. The Electricals dont last very long because the motor will wear out.

I'll be snatching up a holley red sometime soon.

Andrew
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BIGKAT_83
post Sep 15 2004, 06:41 PM
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QUOTE(rey @ Sep 15 2004, 04:20 PM)


I'm going with a belt driven water pump someone here said they don't last that long about 2000 hr.


2000 hrs at 40MPH average is 80K that seems like about what a belt driven pump would run.

I wonder who has put the most miles on a V8 conversion and how many? I'm at the 9k mark in about a year and a half with no real problems.
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dan10101
post Sep 15 2004, 06:45 PM
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Make sure you get a rotary style fuel pump to keep the noise down. Andrew has a Faucet that is available just about everywhere, but they are super noisey. They are a piston style.

3-4 psi is plenty until you get into high sustained HP.

The Holley looks like a good deal. I don't know if it is rotary from looking at the pictures. See if you can find someone that can tell you if they are noisey. The one good thing is that you know when your fuel pump is running... (IMG:style_emoticons/default/smash.gif)

Dan.
(And no it was not my birthday yesterday, I'm not having anymore since I never seem to get any presents... (IMG:style_emoticons/default/ar15.gif) ) But thanks to whoever thought I deserved to be born on 9-14. (IMG:style_emoticons/default/smile.gif)
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Aaron Cox
post Sep 15 2004, 06:57 PM
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QUOTE(dan10101 @ Sep 15 2004, 05:45 PM)
Make sure you get a rotary style fuel pump to keep the noise down. Andrew has a Faucet that is available just about everywhere, but they are super noisey. They are a piston style.

3-4 psi is plenty until you get into high sustained HP.

The Holley looks like a good deal. I don't know if it is rotary from looking at the pictures. See if you can find someone that can tell you if they are noisey. The one good thing is that you know when your fuel pump is running... (IMG:style_emoticons/default/smash.gif)

Dan.
(And no it was not my birthday yesterday, I'm not having anymore since I never seem to get any presents... (IMG:style_emoticons/default/ar15.gif) ) But thanks to whoever thought I deserved to be born on 9-14. (IMG:style_emoticons/default/smile.gif)

facets are noisy IF you solid mount them to the body. you cannot hear mine- its sitting on rubber isolaters in the front trunk. 3 dollar fix (IMG:style_emoticons/default/wink.gif)
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aircooledboy
post Sep 15 2004, 08:19 PM
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Mines got a Carter, and it sounds like a small jackhammer about 40% of the time, even mounted on rubber isolators. (IMG:style_emoticons/default/wacko.gif)
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dan10101
post Sep 15 2004, 08:51 PM
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Ours is mounted in 1" rubber mounts. Easily heard...

Now maybe after he puts the headers on....
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Aaron Cox
post Sep 15 2004, 08:54 PM
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QUOTE(dan10101 @ Sep 15 2004, 07:51 PM)
Ours is mounted in 1" rubber mounts. Easily heard...

Now maybe after he puts the headers on....

theres a difference "mounts" and "isolators"

mounts are a solid shaft with rubber spacer. isolaters are 2 shafts only connected by rubber. (IMG:style_emoticons/default/wink.gif)
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dan10101
post Sep 15 2004, 09:21 PM
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ok, then I change my story.... it's mounted in Isolators... (IMG:style_emoticons/default/biggrin.gif)
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mayord2001
post Sep 16 2004, 07:25 AM
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I've used a Carter for years w/ 350 Chevy w/ Holley and w/Qjet. Never had any problems even though mine is mounted in the engine bay. However, I recommend mounting near tank. Any of the other basic pumps will work as well. Some are noisier than others. Finally, I think it is a good idea to incorporate a pressure switch into the circuit for safety reasons.
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rey
post Sep 16 2004, 09:21 AM
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Tell me more about the pressure switch (IMG:style_emoticons/default/confused24.gif) How dose it work, where dose it go?
and dose the pump need to go at the bottom of the gas tank or where? (IMG:style_emoticons/default/confused24.gif)

Thanks as you can tell this is my frist conversion (IMG:style_emoticons/default/idea.gif)
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