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M

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Discussion Starter #1
I just double checked to make sure- no matter what I do @ BPU I can't hit over 600 C. My probe is in the top of the DP, and I did a pull from the bottom of 2nd all the way to the top of 4th, it doesn't go over. Am I running wayyyyyy too rich? I have a high flow cat DP that doesn't set off my OBDII, and I think I'm going to change it out ASAP. I did the EGR mod too, any suggestions why I'm runnin so cool?
 

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if you havent done any tuning im sure that it is running rich, but 600C in the top of the downpipe isnt too far off what it should be i think....when i was on stock fuel with my t78(16-17psi) with the probe mounted 1" down the 6th runner i never went over about about 725C..get it on the dyno with a wideband and see what your a/f's look like...do you get any black smoke at WOT? how do your plugs look? u can tell by those if your car is running rich
 
Z

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Discussion Starter #3
I envy you.:(
what kind of EGt gauge do you have? by "top" of DP, do you mean the probe is within 2 " from the top DP flange?
FYI, OBDII do run much more rich than OBDI. thats why 97-98 supras never see EGT over 700C even on top end pulls. you should be happy.:)
 
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