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EGT or 02 #2837409
10/25/20 08:50 PM
10/25/20 08:50 PM
Joined: Jan 2006
Posts: 180
ohio
D
dragon Offline OP
member
dragon  Offline OP
member
D

Joined: Jan 2006
Posts: 180
ohio
Which one are you useing with. Methanol and a carb.I know some who use the 02 sensors and seems to get there set up all messed. And was told sensors don't like methanol. Was told if you put the EGT.senors 2 inch out from the flange. I could get the info I needed.to set up my.engine. thanks

Re: EGT or 02 [Re: dragon] #2837412
10/25/20 09:11 PM
10/25/20 09:11 PM
Joined: Feb 2008
Posts: 543
Central TEXAS!!!!
sr4440 Offline
mopar
sr4440  Offline
mopar

Joined: Feb 2008
Posts: 543
Central TEXAS!!!!
O2 sensors are a much better tool for tuning.
The best thing you can do is never again talk to the person who told you "sensors don't like methanol". the only time i had any issues is tuning blown methanol because my sensors won't go below 4.4, with a carb you should be nowhere close to 4.4.

FYI on the dyno i can use both 8 EGT's and up to 10 O2's and i can not remember the last time i hooked up the EGT's


Joe


Without Data, you’re just another guy with an opinion.
Re: EGT or 02 [Re: sr4440] #2837417
10/25/20 09:30 PM
10/25/20 09:30 PM
Joined: Feb 2005
Posts: 16,312
PA.
pittsburghracer Offline
"Little"John
pittsburghracer  Offline
"Little"John

Joined: Feb 2005
Posts: 16,312
PA.


I have both a 1250 gas carb and an 1150 alcohol carb for my 572 so yesterday I welded in fittings for both egt’s and O2 sensor and will hook both up to my RacePak. You just have to set the channel on the O2 sensor to the fuel you are running. I welded my egt fitting 1 1/4 inches away from the flange like I did on my small block Duster.


1970 Duster
Edelbrock headed 408
6.143@110.85 mph
9.73@135.05 mph shifting at 6700 RPM
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: EGT or 02 [Re: dragon] #2837446
10/26/20 12:30 AM
10/26/20 12:30 AM
Joined: Aug 2003
Posts: 35,914
Bend,OR USA
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Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
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Joined: Aug 2003
Posts: 35,914
Bend,OR USA
If your going to run any type alcohol you need to buy the proper O2 sensor for alcohol, NTK brand are my choice. upNot cheap, but what good parts are cheap work shruggy


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: EGT or 02 [Re: Cab_Burge] #2837758
10/26/20 08:01 PM
10/26/20 08:01 PM
Joined: Nov 2013
Posts: 377
Southern Alberta
Uberpube Offline
enthusiast
Uberpube  Offline
enthusiast

Joined: Nov 2013
Posts: 377
Southern Alberta
I haven't done a lot of egt testing on piston motors, but for rotary, I use 02 for the setting of the fuel map, I use EGT for the timing map along with the dyno torque reading, we only have 2 exhaust ports to check on a 2 rotor so its easy . Once I have the engine making the power I think the combination should make, I then check the egt's to make sure they are in the zone, if too hot, I bring the a/f's richer to control the egt.
A lot of people just tune for maximum best torque and then start melting things.

Re: EGT or 02 [Re: dragon] #2837901
10/27/20 08:51 AM
10/27/20 08:51 AM
Joined: May 2011
Posts: 4,108
northern,Ohio,USA
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Clanton Offline
master
Clanton  Offline
master
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Joined: May 2011
Posts: 4,108
northern,Ohio,USA
Put in a bung for both sensors and you can get a base reading and know what they indicate. With the alky I think flooding the o2 sensor on shutdown may be a problem


GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: EGT or 02 [Re: sr4440] #2838038
10/27/20 03:10 PM
10/27/20 03:10 PM
Joined: Dec 2012
Posts: 1,584
Wind Gap,Pa.
S
Sammy Offline
pro stock
Sammy  Offline
pro stock
S

Joined: Dec 2012
Posts: 1,584
Wind Gap,Pa.
Originally Posted by sr4440
O2 sensors are a much better tool for tuning.
The best thing you can do is never again talk to the person who told you "sensors don't like methanol". the only time i had any issues is tuning blown methanol because my sensors won't go below 4.4, with a carb you should be nowhere close to 4.4.

FYI on the dyno i can use both 8 EGT's and up to 10 O2's and i can not remember the last time i hooked up the EGT's


Joe



I agree 100%.
I never welded in my egt bungs on my new SS Headers. Sold my set of EGTs







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