 Fuel pressure twin carbs |
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| JFG |
 Jun 15 2016, 02:41 PM
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#1
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Senior Member  Group: Members Posts: 686 Joined: 7-April 16 From: Wales Member No.: 19,869 Region Association: None  |
I have a 1.7engine and will be running twin Weber 40idf's.
My car was originally a 2.0i but came minus engine and ancillaries. The only thing I have is the original 3 port pump. I haven't tested it yet but I won't be running a return so can't use the pumpin this instance. What kind of pressure should I be running the carbs at? Research and past experience (albeit not with 40's) would suggest something in the range of 2.5 to 3.5 psi. Anyone with this set up have any input/advice on pump and flow pressure? |
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| SirAndy |
Jun 15 2016, 02:54 PM
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#2
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Resident German Group: Admin Posts: 42,469 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
I used this one on my 2056:
http://www.cbperformance.com/ProductDetail...roductCode=3193 Also, there is no real need to relocate it, you can run it in the stock location using the stock wires: http://www.914world.com/specs/SirAndyCarbFuelPumpRelay.php (IMG:style_emoticons/default/bye1.gif) (IMG:http://www.914world.com/bbs2/uploads_offsite/www.cbperformance.com-179-1416176797.1.jpg) |
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| North Coast Jim |
Jun 15 2016, 03:01 PM
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#3
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Member Group: Members Posts: 345 Joined: 11-December 15 From: Northern Ohio Member No.: 19,450 Region Association: MidAtlantic Region 
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QUOTE(SirAndy @ Jun 15 2016, 04:54 PM)  I used this one on my 2056: http://www.cbperformance.com/ProductDetail...roductCode=3193 Also, there is no real need to relocate it, you can run it in the stock location using the stock wires: http://www.914world.com/specs/SirAndyCarbFuelPumpRelay.php (IMG:style_emoticons/default/bye1.gif) Do you have pics of your installation. I am going to use the same setup and would like to "steal shamelessly" from a successful installation. Right now that pump and filter combo is sitting in the hell hole awaiting installation or is it inspiration. |
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| SirAndy |
Jun 15 2016, 03:22 PM
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#4
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Resident German Group: Admin Posts: 42,469 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(North Coast Jim @ Jun 15 2016, 02:01 PM) Do you have pics of your installation. I am going to use the same setup and would like to "steal shamelessly" from a successful installation. Right now that pump and filter combo is sitting in the hell hole awaiting installation or is it inspiration. No pics, and the engine has long been replaced. I mounted the pump on the firewall in the section where the fuel filter mount is on the early cars. Close to the original pump location but more in-line with the fuel lines. I used the stock wiring to power the pump, no need to hack any wires (see link in my post above). (IMG:style_emoticons/default/smile.gif) |
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Posts in this topic
JFG Fuel pressure twin carbs Jun 15 2016, 02:41 PM
rhodyguy Find a low pressure, self regulated, 2 port pump a... Jun 15 2016, 02:50 PM brant Your experienced numbers are still good.
But I a... Jun 15 2016, 02:51 PM
SirAndy But I always recommend a return on carbs also
:a... Jun 15 2016, 02:55 PM
74ravenna
Your experienced numbers are still good.
But I ... Jun 16 2016, 03:30 AM SirAndy I just installed the fuel pump for carbs that i pu... Jun 16 2016, 11:09 AM 914Mike
I just installed the fuel pump for carbs that i p... Jun 17 2016, 09:52 PM SirAndy Any thoughts on leaving the FI pump under the tank... Jun 17 2016, 09:59 PM brant
Plenty of thoughts on both and them thoughts are ... Jun 17 2016, 10:15 PM 914Mike
Any thoughts on leaving the FI pump under the tan... Jun 20 2016, 09:07 AM MarkV I used the factory wires but the previous owner cu... Jun 15 2016, 03:31 PM JFG I've ordered one of the above mentioned pumps ... Jun 16 2016, 02:15 AM Tbrown4x4
I've ordered one of the above mentioned pumps... Jun 16 2016, 07:25 AM Elliot Cannon I've been using this setup for 13 years now. ... Jun 17 2016, 11:06 PM rhodyguy With the facet and regulator you should still add ... Jun 20 2016, 10:05 AM |
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