EGT-differences between the four cylinders - how much?
11-16-2006, 12:28 AM
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EGT-differences between the four cylinders - how much?
Does somebody know the averaged EGT-differences between the four cylinders?
Maybe personal experiences with four EGT-gauges?
It would be nice to know the temperature differenc from the hottest to the coldest cylinder.
Maybe personal experiences with four EGT-gauges?
It would be nice to know the temperature differenc from the hottest to the coldest cylinder.
11-16-2006, 02:44 AM
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that's a good question.
I just bought a pyrometer, and I would imagine that the leanest hole (the one that gets the best airflow in) would be the hottest.
I would like to hear from someone experienced with seperate pyrometers.....I would like to put my probe in the hottest hole. (lol at that last sentence)
I just bought a pyrometer, and I would imagine that the leanest hole (the one that gets the best airflow in) would be the hottest.
I would like to hear from someone experienced with seperate pyrometers.....I would like to put my probe in the hottest hole. (lol at that last sentence)
11-16-2006, 03:56 AM
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Re: (Monstah)
Just do it on a fresh motor, nobody likes sloppy seconds 
Usually its cyl 2 & 3 that run hotter, since they get less cooling. I would imaging that #3 is the hottest, because the coolant has to pass by 1 & 2 before cooling #3.
Usually its cyl 2 & 3 that run hotter, since they get less cooling. I would imaging that #3 is the hottest, because the coolant has to pass by 1 & 2 before cooling #3.
11-16-2006, 04:17 AM
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Re: (HiProfile)
But this would mean that 4 is the hottest one because it gets coolant as last.
I wanted to lead the question more in directon WHY and HOW MUCH the four cylinders´ egt differ.
I wanted to lead the question more in directon WHY and HOW MUCH the four cylinders´ egt differ.
11-16-2006, 08:31 AM
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Re: EGT-differences between the four cylinders - how much? (hondaapi)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">Using a pair of EGT gauges, I've been monitoring comparisons of EGT's b/w cylinders. Cylinder #3 was used as the standard since that's the one that everybody says runs the hottest. Guess what? They're right.
Relative readings:
1: -40 deg Celsius
2: -20 deg Celsius
3: 0
4: -40 deg Celsius</TD></TR></TABLE>
Relative readings:
1: -40 deg Celsius
2: -20 deg Celsius
3: 0
4: -40 deg Celsius</TD></TR></TABLE>
11-16-2006, 12:58 PM
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Re: EGT-differences between the four cylinders - how much? (IN VTEC)
3 is the hottest because its the only cylinder that is either firing or has an adjacent cyl firing (except #1 tdc)
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11-16-2006, 08:30 PM
#8
Re: EGT-differences between the four cylinders - how much? (blackeg)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackeg »</TD></TR><TR><TD CLASS="quote">3 is the hottest because its the only cylinder that is either firing or has an adjacent cyl firing (except #1 tdc)</TD></TR></TABLE>
isnt that the same as #2 cyl?
isnt that the same as #2 cyl?
11-16-2006, 08:33 PM
#9
Re: EGT-differences between the four cylinders - how much? (xenocron)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xenocron »</TD></TR><TR><TD CLASS="quote">
isnt that the same as #2 cyl?</TD></TR></TABLE>
Thats what I thinking...
isnt that the same as #2 cyl?</TD></TR></TABLE>
Thats what I thinking...
11-16-2006, 10:20 PM
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I've always heard that #3 was the way to go if you were looking for a good point for your EGT probe.
I actually tapped into the internal wastegate hole in my turbo to put the probe in. I was running an external WG, so the exhaust flange I had was actually designed to block off the hole for the internal WG. drilled, and tapped a hole in there. Measured EGT temp right after it came out of the turbine.
I actually tapped into the internal wastegate hole in my turbo to put the probe in. I was running an external WG, so the exhaust flange I had was actually designed to block off the hole for the internal WG. drilled, and tapped a hole in there. Measured EGT temp right after it came out of the turbine.
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