fuel pump compatability? and relocation, can I use Djet fuel pump for Ljet system |
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fuel pump compatability? and relocation, can I use Djet fuel pump for Ljet system |
pnewman |
Feb 20 2006, 03:39 PM
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#1
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Member Group: Members Posts: 371 Joined: 15-February 05 From: Lincolnshire, IL Member No.: 3,606 Region Association: Upper MidWest |
I am in the midst of doing a fuel pump relocation and wanted to know if I could use the smaller cylindrical fuel pumps to replace my 3 hose L jetronic pump. I have a 1974 1.8 liter.
Thanks in advance for any input. |
Bleyseng |
Feb 20 2006, 03:58 PM
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#2
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Aircooled Baby! Group: Members Posts: 13,036 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Thats what Porsche did for the 75-76 cars when they stuck it upfront.
Use the inline pump and the inline filter with the larger feed hole. (IMG:http://www.914world.com/bbs2/html/emoticons/clap56.gif) |
Cap'n Krusty |
Feb 20 2006, 04:08 PM
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#3
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
The single-in/single-out VW pump will work fine, but it's the same size as the 3-line one. Porsche went to that pump for the 75-76 cars. If you're thinking of one of the smaller aftermarket pumps, probably not. You need to match up the pressure/flow with what you have. The Cap'n |
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pnewman |
Feb 20 2006, 10:07 PM
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#4
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Member Group: Members Posts: 371 Joined: 15-February 05 From: Lincolnshire, IL Member No.: 3,606 Region Association: Upper MidWest |
What is the GPM and PSI rating of my oem pump? What are the GPM and PSI requirements of my 1974 L Jetronic system for my 1.8 liter? Is it that easy to find out GPM and PSI ratings of after market pumps? or other year 914's? thanks |
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bd1308 |
Feb 21 2006, 06:17 AM
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#5
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
on my 914, I have a fuel pump from a 97 Ford Ranger, being fed from a line with a 914 stock fuel filter, then going way back and then going to a 300ZX fuel filter...
whole setup cost 100 or so dollars...been working solid for a dialy three months. As dependable as a.....a.....honduh b |
pnewman |
Feb 21 2006, 09:18 AM
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#6
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Member Group: Members Posts: 371 Joined: 15-February 05 From: Lincolnshire, IL Member No.: 3,606 Region Association: Upper MidWest |
What fuel delivery system are you running? Carbs? L jet? D jet? |
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bd1308 |
Feb 21 2006, 10:35 AM
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#7
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
I'm using L-jet, but I went ahead and mounted everything up front (except for fuel filter #2) so I could get rid of the vapor lock issues....or at least that was the excuse I was using...shoudl work *EXACTLY* the same with D-jet, and if you purchased a regulator that would cut the pressure down to 3-4 psi from the FI pump, you could run carbs.
b |
pnewman |
Feb 22 2006, 10:25 PM
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#8
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Member Group: Members Posts: 371 Joined: 15-February 05 From: Lincolnshire, IL Member No.: 3,606 Region Association: Upper MidWest |
So you think that the D jet fuel pump would work fine mounted up front w/ the L jet EFI system? I like that pump better. It seems as though it would be easier to service it than the 3 hose oem L jet pump. thanks |
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Air_Cooled_Nut |
Feb 23 2006, 06:12 AM
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#9
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914 Ronin - 914 owner who lost his 914club.com Group: Members Posts: 1,748 Joined: 19-April 03 From: Beaverton, Oregon Member No.: 584 Region Association: None |
The fuel pump from a fuel injected VW Type 3 should work. D-jet system w/three ports on the pump.
Nothing magical or extra difficult with a three port pump (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif) |
pnewman |
Feb 23 2006, 07:40 AM
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#10
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Member Group: Members Posts: 371 Joined: 15-February 05 From: Lincolnshire, IL Member No.: 3,606 Region Association: Upper MidWest |
I guess that you hit it on the head! about the 3 port "magic" Cylinder pumps seem to be the way now. what's up w/ 3 ports! anyone know the psi and gpm of the old 3 port pumps? |
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Cap'n Krusty |
Feb 23 2006, 08:05 AM
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#11
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
Dropping the pressure from an FI pump down to 3-4 PSI is a well known way to prep for a fire. Seen several carbecues done that way . The Cap'n |
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Cap'n Krusty |
Feb 23 2006, 08:07 AM
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#12
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
As previous replies have stated, the later D jet cars used that pump, as did the L jet cars through the VW Vanagons. The Cap'n |
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bd1308 |
Feb 23 2006, 12:53 PM
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#13
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
I agree it would be stupid to do that, but it is possible to do. b |
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