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Most important gauge?

Diesel

By Diesel
in 3rd Generation Dodge

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Diesel

Diesel

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OK, thinking its time to pick up some gauges. So if we are talking a max of three, or if I don't even need three, what are the most important gauges to get in order of importance? Running the Smarty S06 on 5. Is that in my sig line? Ya it is.

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AH64ID

AH64ID

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Boost, EGT are the two to run.

Unless you know what the rail pressure should be the gauge is all but useless. The ECM knows what it should be and will set a code if it's wrong. The only times it's really useful is for tuning, as in UDC or EFI live, or if your running an MP-8.

As for a 3rd gauge I recommend low pressure fuel, it's not monitored by the ECM.

If you really want rail pressure then get a ultra gauge, it's cheaper and more accurate. It also shows you a host of they OBDII monitored sensors.

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dorkweed

dorkweed

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.

Unless you know what the rail pressure should be the gauge is all but useless. The ECM knows what it should be and will set a code if it's wrong. The only times it's really useful is for tuning, as in UDC or EFI live, or if your running an MP-8.

 

 

I disagree John.  If I didn't have my RP gauge installed when my truck was running properly;  how would I have known I was having "an issue" on my February snow goose hunt trip???  I knew long prior to the truck throwing a code that something wasn't right.  Just saying!! :2cents:  :thumb1:

 

 

I have boost, EGT, and LP gauged with Autometer UltraLites.  I also have a Quadzilla RP gauge that is still working just as good now as when I got it.................lucky I guess!!!

Edited by dorkweed
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Diesel

Diesel

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OK, so why do I need a boost gauge? Besides the obvious of knowing if I'm loosing manifold pressure or not. Is there a known problem with the manifold pressure I'm not aware of? Or is it another reason?

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AH64ID

AH64ID

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For some reason I cannot get the multiquote function to work, so I'm just going to paraphrase

Dorkweed, I think your scenario is rare. Most folks don't see enough to know what is wrong, especially when running a tuner. Then CEL did trip and really that's going to be the best indicator of a rail pressure issue.

Starting for MY05 the fuel pump was upgraded to the in-tank pump, and a retrofit kit is available for older trucks. The in-tank pump has proven itself, and has been more reliable than any of the aftermarket pumps. The general consensus is that unless you need the flow for power the OEM in-tank is best, and it will support at least 450-500rwhp. Flow is what matters to a CP3, as long as it has good flow it's happy. I usually say above 2 psi, not to exceed 15. Bosch say minus 5 psi is the min, but most gauges are positive pressure only is why I say 2.

Boost isn't nearly as important, but it can tell you if you are working the stock turbo too hard. The stock turbo runs out of turbine long before compressor so we want to limit boost to 36-38 at most. Anymore than that and the drive pressure is beyond excessive and the turbo may be over speeding.

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AH64ID

AH64ID

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with the three on the dash, do you have to cut a hole in the dash for wiring? i'm not sure i wana cut mine.

 

Yes, just a small hole. The piece you cut a hole in is replaceable in about 2 minutes if you ever decide to sell the truck without gauges.

 

I tow, on rare occasion, with my dad's 06. He has a 2 pillar mount, and the 3 on the dash is by far a better setup for monitoring the gauges and the road.

 

I have also had the 3 over the mirror, and 2 on the column. Nothing is as easy to read as the dash mount.

 

You can see here the piece that is visible is removed while I get the wiring ready.

 

IMG_9934.jpg

 

IMG_5685.jpg

 

When I switched from Pricol to ISSPRO 2 years ago I move the pyro to the left dash pod and oil pressure to the a-pillar. It makes for a better cross scan.

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Killer223

Killer223

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white face black lettering or the EV2's? im not a fan of the sensor gauges like my old glowshift ones. loved teh gauge look. but the sensors were junk. thank you SOO much for the pics.

 

i'm a big fan of the autometer ultra-lite not the ultra'lite 2's.

Edited by Killer223
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