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Evo X Engine Management / Tuning Forums Discuss the major engine management systems.
View Poll Results: Most important gauge besides boost:
Fuel Pressure
4
2.96%
Oil Pressure
14
10.37%
Oil Temperature
8
5.93%
EGT
6
4.44%
AFR
102
75.56%
Voltage
1
0.74%
Voters: 135. You may not vote on this poll

Most Important Gauges

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Old Jun 11, 2009, 10:05 AM
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Question Most Important Gauges

In your opinion, what is the most important thing to monitor while driving an Evo X, aside from boost?

Additional details for the "it depends" people:
- Daily driver, rarely tracked
- bolt-ons
- mid-to-high 300 whp range
- no water/meth

I ask because I have an empty pod and am looking to put something in it.

Omitted coolant temp because we have some measure of that on the center display.
Old Jun 11, 2009, 10:15 AM
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The only gauge I have besides boost is an AEM UEGO, which I have yet to install. For some reason I like the idea of having the peace of mind that my AFR is alright at all times.
Old Jun 11, 2009, 10:28 AM
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Wideband AFR and then oil pressure or oil temp.
Old Jun 11, 2009, 11:07 AM
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I run boost, AFR, EGT. I would like to have Oil Pressure as well but don't have room on the dash for a 4th gauge. In reality though, if you just run pump gas (no meth) EGT is really more for tuning and verifying the tune after wards, you don't need it all the time.

Boost and AFR I think you do need most of the time. If you spring a boost leak or pop a line off the FPR etc etc, those two will cover your ****. I'll probably switch EGT over to Oil Pressure after my next touch up tune.
Old Jun 11, 2009, 12:01 PM
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Air/Fuel is most important.

With out a way to measure air/fuel it is near impossible to fully dial in a tune.

Tuning without a wideband is asking for trouble.

Monitoring air/fuel delivery should be number one on your to do list for gauge selection.
Old Jun 11, 2009, 12:41 PM
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Originally Posted by DG Motors
Air/Fuel is most important.

With out a way to measure air/fuel it is near impossible to fully dial in a tune.

Tuning without a wideband is asking for trouble.

Monitoring air/fuel delivery should be number one on your to do list for gauge selection.
Agree
Old Jun 11, 2009, 02:17 PM
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I expected the AFR landslide, was going to omit it, but then again, it's good to see.

For those who didn't vote AFR, care to share you rationale? Why did you choose what you chose?
Old Jun 11, 2009, 02:20 PM
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Originally Posted by DG Motors
Air/Fuel is most important.

With out a way to measure air/fuel it is near impossible to fully dial in a tune.

Tuning without a wideband is asking for trouble.

Monitoring air/fuel delivery should be number one on your to do list for gauge selection.
I agree for tuning, but what about while driving? Safe tune, mildly modified, just daily to work, and some sporadic track time?

Maybe a better question is:
Say the tune has already been dialed in, and is daily-driver safe. What makes AFR important enough to be available at a glance, over the other options, in that situation?

Not contesting your knowledge, just trying to educate myself.
Old Jun 11, 2009, 02:21 PM
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AFR hands down...

Oil Pressure and Boost are the others in my car.
Old Jun 11, 2009, 05:33 PM
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clock?

AFR - even for a daily its still probably the most useful...
Old Jun 12, 2009, 05:32 AM
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Originally Posted by winzo
I agree for tuning, but what about while driving? Safe tune, mildly modified, just daily to work, and some sporadic track time?

Maybe a better question is:
Say the tune has already been dialed in, and is daily-driver safe. What makes AFR important enough to be available at a glance, over the other options, in that situation?

Not contesting your knowledge, just trying to educate myself.
Let's say you pop off your FPR line hose off. You will be going lean and even though you think your tune is dialed in, you will be heading for disaster.

Different weather conditions could certainly throw off your a/f.

Say you start over boosting in the cold weather. Having an a/f gauge will tell you what is going on.

It's like practicing safe sex.
Old Jun 12, 2009, 06:10 AM
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Originally Posted by DG Motors
...It's like practicing safe sex.
but if you don't use it a clothes hanger can't fix your engine...
Old Jun 12, 2009, 06:21 AM
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I would have to say AFR and PSI is all I look at and temp gauge just incase
Old Jun 12, 2009, 06:38 AM
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Originally Posted by newcomer81
but if you don't use it a clothes hanger can't fix your engine...
Nope, fishing around will not work in that case...
Old Jun 12, 2009, 02:29 PM
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Originally Posted by DG Motors
It's like practicing safe sex.


Thanks for the info. Definitely going AFR.


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