Notices
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

Thread Tools
 
Search this Thread
 
Old Jun 11, 2009 | 10:05 AM
  #1  
winzo's Avatar
Thread Starter
Newbie
 
Joined: Dec 2008
Posts: 9
Likes: 0
From: Philadelphia, PA
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.
Reply
Old Jun 11, 2009 | 10:15 AM
  #2  
macPSU's Avatar
Evolved Member
iTrader: (7)
 
Joined: Feb 2008
Posts: 1,602
Likes: 1
From: Central NJ
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.
Reply
Old Jun 11, 2009 | 10:28 AM
  #3  
sbdemon's Avatar
Evolving Member
 
Joined: May 2009
Posts: 114
Likes: 0
From: Spokane, WA
Wideband AFR and then oil pressure or oil temp.
Reply
Old Jun 11, 2009 | 11:07 AM
  #4  
Mad_SB's Avatar
Evolved Member
iTrader: (8)
 
Joined: Apr 2003
Posts: 2,138
Likes: 0
From: Georgia
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.
Reply
Old Jun 11, 2009 | 12:01 PM
  #5  
DG Motors's Avatar
Former Sponsor
iTrader: (6)
 
Joined: Jan 2007
Posts: 1,840
Likes: 0
From: long island
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.
Reply
Old Jun 11, 2009 | 12:41 PM
  #6  
NyRsNy's Avatar
Evolving Member
 
Joined: Dec 2005
Posts: 108
Likes: 0
From: The moon
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
Reply
Old Jun 11, 2009 | 02:17 PM
  #7  
winzo's Avatar
Thread Starter
Newbie
 
Joined: Dec 2008
Posts: 9
Likes: 0
From: Philadelphia, PA
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?
Reply
Old Jun 11, 2009 | 02:20 PM
  #8  
winzo's Avatar
Thread Starter
Newbie
 
Joined: Dec 2008
Posts: 9
Likes: 0
From: Philadelphia, PA
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.
Reply
Old Jun 11, 2009 | 02:21 PM
  #9  
Boostd4's Avatar
Evolved Member
iTrader: (10)
 
Joined: Jun 2003
Posts: 662
Likes: 0
From: Bay Area, CA
AFR hands down...

Oil Pressure and Boost are the others in my car.
Reply
Old Jun 11, 2009 | 05:33 PM
  #10  
tephra's Avatar
EvoM Guru
15 Year Member
iTrader: (6)
 
Joined: Feb 2007
Posts: 9,486
Likes: 67
From: Melbourne, Australia
clock?

AFR - even for a daily its still probably the most useful...
Reply
Old Jun 12, 2009 | 05:32 AM
  #11  
DG Motors's Avatar
Former Sponsor
iTrader: (6)
 
Joined: Jan 2007
Posts: 1,840
Likes: 0
From: long island
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.
Reply
Old Jun 12, 2009 | 06:10 AM
  #12  
newcomer81's Avatar
Evolving Member
iTrader: (5)
 
Joined: Apr 2009
Posts: 314
Likes: 1
From: Norfolk VA
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...
Reply
Old Jun 12, 2009 | 06:21 AM
  #13  
Sharkbite2000's Avatar
Evolved Member
iTrader: (21)
 
Joined: Dec 2005
Posts: 4,898
Likes: 14
From: Eugene, Oregon
I would have to say AFR and PSI is all I look at and temp gauge just incase
Reply
Old Jun 12, 2009 | 06:38 AM
  #14  
DG Motors's Avatar
Former Sponsor
iTrader: (6)
 
Joined: Jan 2007
Posts: 1,840
Likes: 0
From: long island
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...
Reply
Old Jun 12, 2009 | 02:29 PM
  #15  
winzo's Avatar
Thread Starter
Newbie
 
Joined: Dec 2008
Posts: 9
Likes: 0
From: Philadelphia, PA
Originally Posted by DG Motors
It's like practicing safe sex.


Thanks for the info. Definitely going AFR.
Reply



All times are GMT -7. The time now is 09:59 PM.