I'm installing a Zeitronix wide band on my EG but I dont know where to put the EGT probe ... Do anyone know which cylinder runs the hottest on on a B20Vtec setup ...

 

put it in a similar spot to the oem location, honda put the O2 in the collector for a reason. If you put it in the leanest cylinder, the performance of 3 cylinders will suffer a rich condition. If you put it downstream, you will get best performance out of cylinders 2 and 3, with slight variations in the 1 and 4 cylinders. If your doing it to make sure your not running lean, just richen it up with your tune if you are really really worried about it. Number one tends to be the leanest, since it is closest to the pressure defferential created by the throttle plate. Manifold design has a lot to do with that, so I would highly suggest putting it in the collector.

 

I hope you got that for free, cause its a waste of money on your mostly "stock" motor.

 

hottest doesn't account for crap, otherwise we would be using heat sensors to determine AFR, since temp has very little consistency with a changing AFR, that is a shitty way of finding the lean cylinder. It could simply have had a more dense charge and more fuel which would also net a high temperature, so going on the exhaust temp is pretty chimp-like.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike1114 &raquo;</TD></TR><TR><TD CLASS="quote">I hope you got that for free, cause its a waste of money on your mostly "stock" motor.</TD></TR></TABLE>

B16 Head:
-Race Port and polish
-5 angle valve job
-SuperTech Titanium Valves ( stock size)
-SuperTech Titanium Dual Valve Springs
-SpuerTech Titanium retainers
-Bronze Valve Guides
-Brian Crower Stage 3
-Golden Eagle cam gears
-Skunk 2 Pro Series Manifold (port mached to tb and lite porting of runners)
-AEBS 70mm TB
-Copy of a Rage 4-2-1 Header
-Hondata IM heatshield
-310cc Injectors
-B&M FPR
-Apexi Spark plug wires
-AEM Short Ram filter

B20 Block:
-b20 Block (cleaned and honed)
-Golden Eagle Block Guard (welded in to block and sleeves, then cleaned up)
-b20 Crank
-Arias Pistons with rings (12:5 compression)
-Eagle Rods w/ARP rod bolts
-Honda Rod Bearings and Main Bearings
-Golden Eagle Vtec conversion kit (84mm)
-Golden Eagle Head Bolts
-Type R Oil Pump
-Type R Water pump
-Moroso Oil Pan

running a 190lph fuel pump and a Custom 2.5" Vibrant/Moroso exhaust system... Going to be tuned on a Hondatat S200 P28 w/ a Zeitronix Wide Band.

I hope to make about 200 to 220whp


Now if you consider that stock then ... I guess its stock

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slowcivic2k &raquo;</TD></TR><TR><TD CLASS="quote">put it in a similar spot to the oem location, honda put the O2 in the collector for a reason. If you put it in the leanest cylinder, the performance of 3 cylinders will suffer a rich condition. If you put it downstream, you will get best performance out of cylinders 2 and 3, with slight variations in the 1 and 4 cylinders. If your doing it to make sure your not running lean, just richen it up with your tune if you are really really worried about it. Number one tends to be the leanest, since it is closest to the pressure defferential created by the throttle plate. Manifold design has a lot to do with that, so I would highly suggest putting it in the collector.</TD></TR></TABLE>

The ZEitronix replaces the stock narrow band with a wide band and send the ecu a simulated narrow band signal... What I was asking was the placement of the EGT probe ...
Where or which cylinder in Honda B series run the hottest ???

 

thanx for the info ... in the Toyota world #3 cylinder always run the hottest and is the best placement for the EGT probe...

 

You don't need an EGT probe, your not gonna melt anything, plus placing it in a different location is gonna net a different temperature no matter where you put it, airflow down the road will cool it off with how the headers run and give you a false reading anyways.

Personally, I think its rice for a 200whp NA car.....

 

why would it be rice when you want to tune a 12.5:1 compression n/a motor to run nicely on 91 Octane ??? Tuning is everything ...

 

Your exhaust gas temp is not that important NA, its not gonna skyrocket like a turbo car, and is useless. Explain to me how a tuner is gonna tune your car based on exhaust temperature.........

Even turbo cars don't use EGT's to tune, but to keep their temps in check because of the dynamic nature of their compression... 12psi of boost will make significantly less heat than 20psi

 

My egt is placement is not what I'm using to tune I'm using the wideband feature of the Zeitronix. Both is a usefull tool when I'll be running on road corse, egt and wideband will tell you if something is going wrong with your engine... Information, is always good especially when I'm trying to squeeze every once out of my setup...

p.s. Turbo setups run colder than Supercharge and N/a in egt temps...

 

EGT gauges give a good idea of where spark is and where spark should be. Its very helpful in fine tuning situations and road racing. Place the EGT in number 3 header runner, thats the cylinder that honda had a problem keeping cool on B series.

 

thank you for your informative post ... I'll have my friends at the exhaust shop drill and tap #3 ...

 

Everyone in this post is a complete retard/******* except for luserkid. God I hate Honda Tech sometimes.

You don't use EGT for AFR! You use it for spark!! He said he has a wideband for AFR already.

And SOrRy if his motor isn't worthy enough for you!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by suspendedHatch &raquo;</TD></TR><TR><TD CLASS="quote">Everyone in this post is a complete retard/******* except for luserkid. God I hate Honda Tech sometimes.

You don't use EGT for AFR! You use it for spark!! He said he has a wideband for AFR already.

And SOrRy if his motor isn't worthy enough for you!</TD></TR></TABLE>

thanx for the help bro, people just post with out reading ....