Re: Limits on mech. fuel pumps??????
[Re: Porter67]
#2061522
04/25/16 05:44 PM
04/25/16 05:44 PM
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astjp2
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I would go with 1/2" on the suction side, 3/8" for the pressure. Tim
1941 Taylorcraft 1968 Charger 1994 Wrangler 1998 Wrangler 2008 Kia Rio 2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
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Re: Limits on mech. fuel pumps??????
[Re: Porter67]
#2061524
04/25/16 05:45 PM
04/25/16 05:45 PM
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Porter67
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Re: Limits on mech. fuel pumps??????
[Re: Porter67]
#2061594
04/25/16 07:37 PM
04/25/16 07:37 PM
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fast68plymouth
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The "faster" FAST cars run electric pumps routed through gutted mech pumps for the correct look.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Limits on mech. fuel pumps??????
[Re: fast68plymouth]
#2061612
04/25/16 08:01 PM
04/25/16 08:01 PM
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Joined: Jul 2004
Posts: 19,317 State of confusion
Thumperdart
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The "faster" FAST cars run electric pumps routed through gutted mech pumps for the correct look.
If that`s the case then a GOOD elec. would be my choice for several reasons...........
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Limits on mech. fuel pumps??????
[Re: Porter67]
#2061664
04/25/16 09:42 PM
04/25/16 09:42 PM
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fast68plymouth
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I used to like to run mechanical pumps when they fit the application. However, today's fuels seem to get into vapor lock type situations easier than in the past.
I'm not a chemist, but (I did stay at a holiday inn express last night) I thought I read that there used to be additives blended into the gas to help prevent the onset of vapor lock by raising the boiling point when under vacuum. Basically, all newer vehicles have the fuel pump in the tank, so the entire system is constantly under pressure, so the additives used to help with the vapor lock are no longer needed, or used.
Over the last couple of years I've had several customers contact me about vapor lock issues with cars still running mechanical pumps. Never a call like that from anyone running a properly thought out electric pump/system.
There are so many options for electric pumps now, you should always be able to find something that's a good fit for the application.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Limits on mech. fuel pumps??????
[Re: Porter67]
#2061686
04/25/16 10:13 PM
04/25/16 10:13 PM
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GY3
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Re: Limits on mech. fuel pumps??????
[Re: Porter67]
#2061694
04/25/16 10:22 PM
04/25/16 10:22 PM
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Porter67
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Re: Limits on mech. fuel pumps??????
[Re: fast68plymouth]
#2061699
04/25/16 10:31 PM
04/25/16 10:31 PM
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Spaceman Spiff
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The "faster" FAST cars run electric pumps routed through gutted mech pumps for the correct look.
i always wondered about this idea i've had, if it would work. have a gutted mechanical pump, thats actual a regulator. you could run all metal lines with regular fittings, even have a return line...
526 cubes of angry wedge, pushbutton shifted, 9 passenger killer!
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Re: Limits on mech. fuel pumps??????
[Re: Porter67]
#2061955
04/26/16 12:29 PM
04/26/16 12:29 PM
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fast68plymouth
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Maybe we need a PN from the fast guys? The trunk area is not an inspected area in FAST. You can run any fuel pump you want, even a fuel cell. Some of the guys hide a small cell with a pump inside the OE gas tank, but that's just their preference, it doesn't need to be hidden. You just aren't supposed to have any fuel system "upgrades" visible under the hood. The engine bay has to have the correct sized lines and routing, etc.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Limits on mech. fuel pumps??????
[Re: Porter67]
#2061990
04/26/16 01:32 PM
04/26/16 01:32 PM
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RMCHRGR
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If you don't go to some hidden type of delivery system, you might want to look into a Clay Smith mechanical fuel pump which flow a lot of fuel and come with 1/2" ports. Main drawback is that they are a bit of a pain with their clearance issues since the pump body is larger than any Carter. On my small block, I had to modify the water pump inlet to clear the pump. Other than that, it installs like normal. They require a regulator. Click here. The CS pumps are (generally) cheaper than most any new electric pump. I used one on my new 416, didn't want to deal with wiring the pump, noise etc. The in-tank electric pumps just seem really expensive for what they are.
'71 Duster '17 Ram 1500
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Re: Limits on mech. fuel pumps??????
[Re: RMCHRGR]
#2062008
04/26/16 02:10 PM
04/26/16 02:10 PM
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If you don't go to some hidden type of delivery system, you might want to look into a Clay Smith mechanical fuel pump which flow a lot of fuel and come with 1/2" ports. Main drawback is that they are a bit of a pain with their clearance issues since the pump body is larger than any Carter. On my small block, I had to modify the water pump inlet to clear the pump. Other than that, it installs like normal. They require a regulator. Click here. The CS pumps are (generally) cheaper than most any new electric pump. I used one on my new 416, didn't want to deal with wiring the pump, noise etc. The in-tank electric pumps just seem really expensive for what they are. The Clay Smith pump is currently unavailable.
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Re: Limits on mech. fuel pumps??????
[Re: Porter67]
#2062068
04/26/16 03:52 PM
04/26/16 03:52 PM
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madscientist
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To the OP...
The older Carter pumps are slightly different than the newer ones. Mancini only has the kits for the newer style.
There is a place called THEN & NOW AUTOMOTIVE in Weymouth MA. They have parts for all th Carter pumps. Carter don't even have time. They don't have a web site so you have to call them. I just rebuilt my pump, it was easy and cheaper than new. Plus, if you look at the housing close, you can see how to improve flow a bit.
The phone number is 781-335-1925. Call them that can fix up up. Plus, they have all kinds of stuff for anything older.
There is really no reason not to rebuild a pump. The castings don't wear out.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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