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What freekin Oil Leak?
 
TurboBert's Avatar
 
Join Date: Oct 2002
Location: Oahu
Posts: 177
3.2 Carrera Fuel Rails for EFI

I'm considering going EFI on my 79 reasonably stock 930 using a 3.2 Carrera intake. I am not really interested in chasing a lot of horsepower - maybe just 350 hp or so.

I notice that some guys doing these conversions don't use the stock 3.2 rails and they don't use the stock fuel pressure regulator. I'm assuming that's becuase they are looking at being able to supply much more fuel than the stock components can deliver as they push themselves to 400+ hp.

Question:
1. Can someone validate my thinking above?
2. What are the drawbacks of using the stock componments assuming I can get the right fittings to plug into the stock 3.3 fuel system?

Example of non-stock rails/regulator is below (courtesy of 125 Shifter on Rennlist)
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Steve
'79 930 US
Old 12-16-2006, 07:43 PM
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There is nothing wrong with using the stock stuff. I used mostly stock in my conversion. I used an aftermarket FPR cause I didn't have a stock one.
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Dean
911 SC turbo, 3.0L 930 motor, G50, 930 brakes, DTA EFI, 352 RWHP DynoDynamic dyno,
Old 12-17-2006, 04:34 AM
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mppickett's Avatar
 
Join Date: Oct 2005
Location: Barrington, RI
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I used the stock 3.2 rails and regulator on my 930 EFI conversion. I'm using 50 lbs/hr injectors and have plenty of fuel for 1 bar. I'd probably go with slightly larger injectors if I were doing it again.
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Old 12-17-2006, 02:22 PM
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Join Date: Apr 2002
Location: Houston (Clearlake), TX
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I don't see anything wrong with the stock rails. As a benefit, they have pretty good injector retainers which most aftermarket, mine included, don't have. They probably don't even flow much less, although the capacity in the injector header is less. I mainly just wanted it to look cool
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2014 Cayman S
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Old 12-17-2006, 03:31 PM
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