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- Yes. No return line necessary WHOOPS - You already knew that...:cool: |
I use a carter in-line 15 psi fuel pump for my NOS system, stepped down to 10psi with Holley regulator and safety cut-off at 4.5 psi. If my Holley Blue ever quits again, I can steal the Carter to get me home. (Or call AAA.)
AZ Bob |
Depends how nostalgic or original you want to make it.
Like my SW 240A pumps, gutted and bored out to accommadate two modern electric inline fuel pumps: http://clubcobra.com/photopost/data/...umbs/00514.JPG Cheers Greg |
I can sympathize Scotty. Thinking about changing mine too. I have a Holley red back at the tank and a mechanical pump (fed by the electric pump, so in series, with a return line). The electric pump sounds like a blender. If my fuel level is below 1/4 tank I see some pressure drop if I really get into the throttle. So either the pumps aren't keeping up or I have some clogging in the filter. In any event I can't see the electric pump lasting too long based on how it sounds.
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Mike, don't you have FI on that monster? I've always thought they required considerably higher pressure than carbs. If the electric pump can generate the high pressure, wouldn't then running through a mechanical pump lower that pressure by restriction? My confuzzzion runs rampant.
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No mine is carburetor - single quickfuel 780 on a port matched edelbrock performer RPM
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O i c
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Those Holley blue and red pumps (rotary vane) always are loud, especially when dead headed. They don't like it (noise, short life, vapor lock) and neither do most electric pumps. I am running a Holley gerotor with a bypass on it. Runs very quiet. https://www.summitracing.com/parts/hly-12-125/overview/
A good mechanical pump should work fine too with a carburetor. Just depends upon what poison you want. |
In tank
Gordon Levy hooked me up with a 345 lph in tank pump, for Mustang tank. Supports 600 hp, runs cooler and quieter. Cannot speak to reliability, only about 1500 miles on mine.
Good luck Mark |
I have a Holley Gerator type pump as well. 5+ years and no problems. Went through 2 vain type pumps before I tried this one. It feeds a Quikfuel 780 too.
You can still hear it but much quieter than the old red ones. Tim |
The original 427's, including S/C and Race cars all ran mechanical fuel pumps. The twin SW pumps fitted to the S/C and Race Cobras were only for priming and reserve.
If mechanical pumps were good enough then, there's no reason to think that they're not good enough now. Paul |
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I know that mine doesn't have the cam eccentric. In many rebuilds that are planning on using an electric pump, the eccentric is not installed on the cam. I installed a Walbro in-take retrofit pump from TanksInc. Quieter than external but still noticeable. |
My 289 was vapor locking in hot weather due to thermal soakback after starting after sitting for a short time and a very knowledgeable friend that specializes in the original Thunderbirds ( my previous car) suggested an inexpensive Carquest pump back near the tank. I switch it on for startup when cold to fill the bowls and leave it on longer if the engine is hot. If it ever vaporlocks I can switch it on to clear it. Haven't had any problems since, so far.
The Carquest pump is an Airtex E8016S and is available many places for about $25. https://www.ctci.org/gilsgarage/VaporLock.php |
I've had a blue Holley for a while now....sometimes it does get noisy, but it does go away.
Mine is dead headed, so with a return it may be quieter. |
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Ralphie, "WHAT DID YOU SAY?":confused: |
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