fuel pressure gauge?
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More Turbo
Joined: May 2005
Posts: 704
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From: Thousand Oaks, CA
fuel pressure gauge?
i want to install a fuel pressure gauge but i have a few questions. should i get an electric or mecanical one? where is the best and easiest place to hook it up? where did some of you guys but your gauge from? i have all auto meter sport comp gauges. thanks guys.
Posting Guru
Joined: Oct 2005
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I have been looking at the Engine Mounted Fuel Pressure Test Gauge from DI. It looks like it is made well and easy to install, both +'s for me. If i go ahead and get the shim kit they sell, i will get this gauge aswell. Sorry to no answer your question, because I don't know the answer to which kind of guage is better 
.
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Junior User
Joined: Oct 2006
Posts: 72
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From: Escondido, Ca.
You can run a mechanical gauge inside the cab as long as you use an isolator which is available separately from Di-Pricol or Isspro and maybe from Auto Meter.
Last edited by phatdually1; Nov 15, 2006 at 01:00 AM.
Lead Driver
Joined: Oct 2004
Posts: 7,413
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From: Columbia, MO
Electric is by far the easiest to set up and safest. No tubes or isolaters necessary. There is an empty port on the back of the fuel bowl that you can tap into, that just has a plug in it now. You'll need an adapter for it, since the threads are not 1/8" NPT that the sending unit will be. Check with Pure Diesel Power (a site sponsor) for the gauge and adapter. I got my Autometer fuel pressure gauge from him. Be prepared for a little sticker shock though. The gauge runs around $150 if I remember correctly.
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More Turbo
Joined: May 2005
Posts: 704
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From: Thousand Oaks, CA
Originally Posted by jtharvey
Electric is by far the easiest to set up and safest. No tubes or isolaters necessary. There is an empty port on the back of the fuel bowl that you can tap into, that just has a plug in it now. You'll need an adapter for it, since the threads are not 1/8" NPT that the sending unit will be. Check with Pure Diesel Power (a site sponsor) for the gauge and adapter. I got my Autometer fuel pressure gauge from him. Be prepared for a little sticker shock though. The gauge runs around $150 if I remember correctly.
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Post Fiend
Joined: Feb 2006
Posts: 11,892
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From: Middle Tennessee
Originally Posted by sean23johnson
thanks jharvey, do you by chance know how accurate the electric gauge is? i ask because in the past i have always been told that mecanical is the right way to go. i checked your gallery, did you use all electric gauges?
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Lead Driver
Joined: Oct 2004
Posts: 7,413
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From: Columbia, MO
sean, all of my gauges are electric, including the new oil & water gauges, except for my boost gauge - it's mechanical. Like Tenn said, the accuracy of the gauge does depend a lot on the quality of gauge you buy.
Tenn, my fuel pressure gauge is actually a full electric version. The sending unit is placed in the Y-block that replaced my fuel bowl.
Tenn, my fuel pressure gauge is actually a full electric version. The sending unit is placed in the Y-block that replaced my fuel bowl.
Lead Driver
Joined: Oct 2004
Posts: 7,413
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From: Columbia, MO
It just raises the fuel pressure in the fuel rails that are in the heads, feeding the injectors. Most trucks seem to run better when the pressure is up around 65 psi. Typical stock pressure is about 50-55 psi. Link here to the shim kit:
http://www.diperformance.com/dip.php...cts&product=23
http://www.diperformance.com/dip.php...cts&product=23
Logistics Pro
Joined: Aug 2005
Posts: 3,884
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From: Morgan Hill, CA
I've been running 65-70 psi for about 2 years now. I have over 200,000 on my original fuel pump and it's starting to drop a few psi under a slight load and drops like 20-30 psi under extreme load. I'd say do it. I use an adjustable regulated return setup from ITP, but the shims work too.
Here's my setup.
Here's a pic of the T fitting I used to connect the under the hood gauge and also the electric sending unit for my AutoMeter in dash gauge.
Here's my setup.
Here's a pic of the T fitting I used to connect the under the hood gauge and also the electric sending unit for my AutoMeter in dash gauge.
Senior User
Joined: Sep 2006
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Inside the cab electrical is the way to go. Less hassle to install than a mechanical with an issolator.
I have done many of these, and its comes to individual preference. Both read the same. We also offer the engine mount setup with a shim kit for those, like me, that want to setup idle pressure.
I have done many of these, and its comes to individual preference. Both read the same. We also offer the engine mount setup with a shim kit for those, like me, that want to setup idle pressure.
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