Electric Gauges
#1
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Electric Gauges
So I'm getting ready to install a few gauges to monitor things. All of them are electronic AutoMeter gauges, just to keep fluids out of the interior, so they have their respective sender units.
First up is a Fuel Pressure gauge with a 1/8" NPT fitting on the sender. Where do I need to tap for that? Do I just T- into the fuel line somewhere, or is there a schrader valve anywhere (I couldn't find one)?
Next is the Oil Pressure gauge. My last car, I went straight to the block. The sending unit has a 1/8" NPT fitting on the end, and also has a 1/4" NPT adapter. Where is the best place to go for a reading there?
Finally, I'm installing a Pyrometer/EGT gauge. I'm going to have a 1/8" NPT threaded hole put into the log manifold to allow for the fitting AutoMeter provides. I know it's supposed to be 1"-2" away from the head basically, but was wondering if there is a particular runner people like to use to get the most accurate readings?
Thanks!
First up is a Fuel Pressure gauge with a 1/8" NPT fitting on the sender. Where do I need to tap for that? Do I just T- into the fuel line somewhere, or is there a schrader valve anywhere (I couldn't find one)?
Next is the Oil Pressure gauge. My last car, I went straight to the block. The sending unit has a 1/8" NPT fitting on the end, and also has a 1/4" NPT adapter. Where is the best place to go for a reading there?
Finally, I'm installing a Pyrometer/EGT gauge. I'm going to have a 1/8" NPT threaded hole put into the log manifold to allow for the fitting AutoMeter provides. I know it's supposed to be 1"-2" away from the head basically, but was wondering if there is a particular runner people like to use to get the most accurate readings?
Thanks!
#3
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The fuel pressure sender goes in the fuel feed line just before the rail. Here is a nice T fitting for a clean install.
http://cgi.ebay.com/ebaymotors/NEW-M...spagenameZWD1V
http://cgi.ebay.com/ebaymotors/NEW-M...spagenameZWD1V
#7
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The fuel pressure sender goes in the fuel feed line just before the rail. Here is a nice T fitting for a clean install.
http://cgi.ebay.com/ebaymotors/NEW-M...spagenameZWD1V
http://cgi.ebay.com/ebaymotors/NEW-M...spagenameZWD1V
Also, from the looks of things, the fuel enters the left side of the rail, and exits the right, if you are facing the intake side of the engine. Correct?
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Originally Posted by turbopezz
i thought it was #3 that would get the hottest.thats where i put my gauge
Originally Posted by turbopezz
i wonder if this effects the flow and spool up,of are turbos. i think im getting run mine in the downpipe,when it gets warmer out.
That being said, my EGT probe is in the downpipe just after the turbo. I did this for reasons of paranoia- it has been suggested that over time, the tip of the probe can weaken and eventually break off. Having the tip of the probe pass through the turbine wheel would probably have negative consequences.
*Explanation: Pre-1971 Beetles were notorious for the overheating of the #3 cylinder and resultant failure of the exhaust valve. This was due to the placement of the stock oil cooler, which pre-heated the air flowing over the forward half of the left head.
Last edited by Joe Perez; 02-19-2007 at 12:29 PM.
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