EGT gauge required? - Subaru Enthusiasts Car Club of the Sierras

Detritus · 2008-07-24, 11:20 PM

I'm still finishing up my research on my stage2 parts purchases but can't really decide about my gauges. I will be getting a wideband with probably the AEM gauge that has numerical and "needle" readout. Also, I'm going to get the 3 gauge clock pod and I've decided on Boost and Oil Pressure. For the 3rd gauge its between EGT and Oil Temp. If I have the wideband gauge do I really need the EGT?

I have done some research around the web and at NAZIOC but I can never find a definitive answer.

Also, if I want to use the oil galley plug for the OP and OT is there a Y style connector available?

Dean · 2008-07-25, 07:04 AM

There is no difinitive answer.

EGT probably comes before wideband. Unless you plan to do your own tuning, wideband is probably not as important and if you are tuning, you need both.

Here is my gauge list in order of preference... (Oil and clock on the dash, other 3 on the A-Pillar)
Boost
Oil Temp
Oil Pressure
EGT
Wide Band
Clock

MPREZIV · 2008-07-25, 07:12 AM

And yes, you can get a 'Y' or a 'T' style adapter to run both oil press. and oil temp. off of a single port.

Check out a place called "Hoses and fittings" over at Glendale and Rock, across from Baldini's.

Double Phister · 2008-07-25, 07:30 AM

As a driver you should have these:
Boost
Oil Pressure
Oil Temp

As a tuner you should have these:
Boost
Lambda
EGT

The more information the better. The only problem is finding places to mount it all.

Bonus for multi-conditional alarming.
examples:
((Oil pressure < 30 psi) & (RPM > 1500)) = Low Oil Pressure!!!
((AFR > 12.0:1) & (boost > 5psi) & (throttle > 60%)) = Lean fuel mixture!!!

ScottyS · 2008-07-25, 10:36 AM

Quote:

Originally Posted by MPREZIV

And yes, you can get a 'Y' or a 'T' style adapter to run both oil press. and oil temp. off of a single port.

Check out a place called "Hoses and fittings" over at Glendale and Rock, across from Baldini's.

Really, so I could TEE the existing oil pressure idiot sensor location?

MPREZIV · 2008-07-25, 11:12 AM

Quote:

Originally Posted by ScottyS

Really, so I could TEE the existing oil pressure idiot sensor location?

YEP! I do it all the time!

knucklesplitter · 2008-07-25, 01:16 PM

Quote:

Originally Posted by R4ND0M_AX3

((AFR > 12.0:1) & (boost > 5psi) & (throttle > 60%)) = Lean fuel mixture!!!

Not true. I think many if not most or all stage 2 tunes would violate this condition (and maybe even the stock STI tune). The thottle position has nothing to do with it either. It is common to run leaner than 12:1 or even 13:1 at 5psi despite 91 octane. I run stoich (14.7:1) to about 3psi. It helps spool.

Detritus · 2008-07-25, 02:01 PM

Thanks for the info guys. For now I was probably going to buy a stage 2 map from XPT. I do want to learn how to tune and wanted to try tweaking that map. That is why I was going to get a wideband.

So I think this will be the plan then.

OP OT EGT in the clock pod.
Boost in the SubieGal pod that goes in the corner of the windshield/dash/A pillar
AFR in an Autometer Dual Cluster Bezel (will have an open spot for maybe a Flow rate/Pressure Gauge if I get a meth injection kit)

I guess the next question is if anyone has access to a drill press so I can tap the manifold. Beer/pizza/$$$ would of course be provided.

I will definitely go with a Y or T adapter since I don't want to mess with a sandwich adapter. I'll stop by that shop.

Thanks again.

Double Phister · 2008-07-25, 02:04 PM

Quote:

Originally Posted by knucklesplitter

Not true. I think many if not most or all stage 2 tunes would violate this condition (and maybe even the stock STI tune). The thottle position has nothing to do with it either. It is common to run leaner than 12:1 or even 13:1 at 5psi despite 91 octane. I run stoich (14.7:1) to about 3psi. It helps spool.

Ya I just threw some numbers up.

knucklesplitter · 2008-07-25, 02:54 PM

Quote:

Originally Posted by R4ND0M_AX3

Ya I just threw some numbers up.

Captain Literal [tm] strikes again! My work here is done...

Kevin M · 2008-07-28, 01:05 PM

Quote:

Originally Posted by R4ND0M_AX3

Ya I just threw some numbers up.

What, like Alpha-Bits?

Double Phister · 2008-07-28, 04:05 PM

Quote:

Originally Posted by Kevin M

What, like Alpha-Bits?

Gotta lose some weight so why not? Is being proud of my gag reflex homophobic?

100_Percent_Juice · 2008-07-28, 04:44 PM

Quote:

Originally Posted by R4ND0M_AX3

Is being proud of my gag reflex gay?

Yes.

Double Phister · 2008-07-29, 08:01 PM

Quote:

Originally Posted by 100_Percent_Juice

Yes.

proud of not gagging would be more gay I would think.

100_Percent_Juice · 2008-07-29, 10:54 PM

Quote:

Originally Posted by R4ND0M_AX3

proud of not gagging would be more gay I would think.

Yes.

2008-07-24, 11:20 PM	#1
Detritus n00b Join Date: Sep 2004 Location: Reno Posts: 19 Car: 05 wrx "hermittower"	EGT gauge required? I'm still finishing up my research on my stage2 parts purchases but can't really decide about my gauges. I will be getting a wideband with probably the AEM gauge that has numerical and "needle" readout. Also, I'm going to get the 3 gauge clock pod and I've decided on Boost and Oil Pressure. For the 3rd gauge its between EGT and Oil Temp. If I have the wideband gauge do I really need the EGT? I have done some research around the web and at NAZIOC but I can never find a definitive answer. Also, if I want to use the oil galley plug for the OP and OT is there a Y style connector available?

2008-07-25, 07:04 AM	#2
Dean Señor Cheap Bastarde Real Name: Dean Join Date: May 2003 Location: $99 Tire Store Posts: 9,294 Car: $.04 STI Class: Fast,Cheap & Reliable=STI Deal, did somebody say Deal? Oh, Dean, yeah that's me.	There is no difinitive answer. EGT probably comes before wideband. Unless you plan to do your own tuning, wideband is probably not as important and if you are tuning, you need both. Here is my gauge list in order of preference... (Oil and clock on the dash, other 3 on the A-Pillar) Boost Oil Temp Oil Pressure EGT Wide Band Clock __________________ I am a Commodore PET --- Now get off my lawn you kids...

2008-07-25, 07:12 AM	#3
MPREZIV Token Real Name: Le Stig Afrique? Join Date: Jun 2005 Location: sitting next to a big yellow box Posts: 3,589 Car: 2001 Impreza 2.5 RS Class: 05 TDSP No, I won't work on your car. F your car*	And yes, you can get a 'Y' or a 'T' style adapter to run both oil press. and oil temp. off of a single port. Check out a place called "Hoses and fittings" over at Glendale and Rock, across from Baldini's. __________________ "...these condoms have a topical anesthetic to reduce sensitivity, so you can last longer. What a paradox. You can't feel a thing, but you can f*ck for HOURS..."

2008-07-25, 07:30 AM	#4
Double Phister EJ22 Join Date: Mar 2005 Location: Elk Grove, CA Posts: 450 Car: 2005 WRX STi "I'm sideways and in control... I look good."	As a driver you should have these: Boost Oil Pressure Oil Temp As a tuner you should have these: Boost Lambda EGT The more information the better. The only problem is finding places to mount it all. Bonus for multi-conditional alarming. examples: ((Oil pressure < 30 psi) & (RPM > 1500)) = Low Oil Pressure!!! ((AFR > 12.0:1) & (boost > 5psi) & (throttle > 60%)) = Lean fuel mixture!!! __________________ Dan - '05 Black WRX STi. My Mods

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2008-07-25, 02:01 PM	#8
Detritus n00b Join Date: Sep 2004 Location: Reno Posts: 19 Car: 05 wrx "hermittower"	Thanks for the info guys. For now I was probably going to buy a stage 2 map from XPT. I do want to learn how to tune and wanted to try tweaking that map. That is why I was going to get a wideband. So I think this will be the plan then. OP OT EGT in the clock pod. Boost in the SubieGal pod that goes in the corner of the windshield/dash/A pillar AFR in an Autometer Dual Cluster Bezel (will have an open spot for maybe a Flow rate/Pressure Gauge if I get a meth injection kit) I guess the next question is if anyone has access to a drill press so I can tap the manifold. Beer/pizza/$$$ would of course be provided. I will definitely go with a Y or T adapter since I don't want to mess with a sandwich adapter. I'll stop by that shop. Thanks again.