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KTL KTL is online now
Schleprock
 
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Join Date: Sep 2000
Location: Frankfort IL USA
Posts: 16,642
Keith,

Since i've had a similar question & problem, i'll share my findings as well. My questions were answered when } added a second fuel pressure gauge on the regulator's second outlet port. My new Inglese' gauge tells me i'm getting 4psi at the regulator output side. However my mech VDO gauge in the dash reads almost 7!!!

Makes no sense to me that a gauge with a long feed line shows a higher pressure. I would have expected a pressure drop. This suspect gauge makes its tap at a splitter block upstream of the carb inlets, so I don't see why i'm not getting a similar pressure reading since its tapped fairly close to the regulator (where I get the "good" reading from the new gauge)

So I was running very low pressure when I was using the dash gauge to set my system pressure. I dropped the pressure to 4 on the dash gauge, which meant I was getting ~2 or less actual pressure!!! So now I have some confidence in my actual pressure and i'll simply use my dash gauge to confirm I didn't forget to switch on the fuel pumps (racecar has manual toggle for pump turn on)
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Kevin L
'86 Carrera "Larry"
Old 08-25-2010, 10:04 AM
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