Fuel lines for a 3.2l with Motronic FI conversion, my "how to" from gas tank to engine |
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Fuel lines for a 3.2l with Motronic FI conversion, my "how to" from gas tank to engine |
jim912928 |
Mar 11 2011, 06:39 PM
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#1
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Senior Member Group: Members Posts: 1,485 Joined: 8-January 04 From: Granger, IN Member No.: 1,536 Region Association: Upper MidWest |
I was fortunate enough that the fuel lines on my engine were fine…so I only had to worry about connections from the engine to supply and return lines. However, I didn’t want to use the old plastic lines and I needed larger diameters all the way from the tank. This sounds easy but it did take a lot of finesse. So, I decided that I would go AN from the tank to the engine (as best I could). I do want to identify several suppliers I used: 1) Pegasus for all the fuel lines, metric to AN adapters (engine return and inlet on the fuel filter) and AN fittings, Tangerine for the stainless tunnel lines with AN fittings on the engine side, JEGS for an AN fuel filter, banjo fitting for the 911 fuel pump (actually a honda part) and a brass reducer coupling I used for the return line up front and finally CB Performance for some really cool metric fuel tank (for VW's and 914's) to AN6 adapters.
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jim912928 |
Mar 11 2011, 06:51 PM
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#2
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Senior Member Group: Members Posts: 1,485 Joined: 8-January 04 From: Granger, IN Member No.: 1,536 Region Association: Upper MidWest |
Finally, I routed AN6 braided fuel hose (from Pegasus in New Berlin, WI), to bulkhead adapters I put in the engine shelf. This will totally eliminate any issue with lines going through the engine shelf…and makes a nice disconnect if I have to drain the lines. Next I routed the topside lines to the filter (supply) and then to the engine (return line). I got a metric to AN adapter for the return from Pegasus and a metric to AN fitting for the fuel filter (you have to remove the fitting in there and replace it with the metric/an fitting (don’t forget a new crush washer!). I then mounted the fuel filter off of a side support using a mounting bracket used in for front mounted 914 fuel pumps.
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