where would you mount an A/F and EGT sensor on a 3.6 motor?

[deputydog95]

i recently supercharged my 3.6 996. i'm installing a zeitronix monitoring system (boost, voltage, AF, EGT, Lamda, etc). you can check it out at www. zeitronix.com

however, i'm only running one probe for both EGT and AF. i know it would be optimal to have an EGT and AF probe on each cylinder bank, but this monitoring system is not equipped for multiple sensors. it doesn't help any either that the two cylinder banks on the 996 exhaust system never meet. that would have been too easy :)

so, is there a bank that runs either hotter or leaner than the other. i figure if i monitor the worst case scenario (leanest/hottest cylinder bank) i would be in good shape.

also, where would you mount the AF and EGT sensor bungs for optimal readings?

thanks.

on a side note, recently dynoed the car and put down 402 RWHP and 310 foot pounds, uncorrected. not too shabby if i do say so myself :)

[deputydog95]

i recently supercharged my 3.6 996. i'm installing a zeitronix monitoring system (boost, voltage, AF, EGT, Lamda, etc). you can check it out at www. zeitronix.com

however, i'm only running one probe for both EGT and AF. i know it would be optimal to have an EGT and AF probe on each cylinder bank, but this monitoring system is not equipped for multiple sensors. it doesn't help any either that the two cylinder banks on the 996 exhaust system never meet. that would have been too easy :)

so, is there a bank that runs either hotter or leaner than the other. i figure if i monitor the worst case scenario (leanest/hottest cylinder bank) i would be in good shape.

also, where would you mount the AF and EGT sensor bungs for optimal readings?

thanks.

on a side note, recently dynoed the car and put down 402 RWHP and 310 foot pounds, uncorrected. not too shabby if i do say so myself :)

anybody? Loren???

[deputydog95]

nobody knows?

[Loren]

I would think the manufacturer of these systems would have recommended locations?

[deputydog95]

i'm more concered with if either cyclinder bank runs hotter or leaner than the other. this is a generic product and the mafuf. doens't have specific information for a pcar application. i only have one AF sensor and one EGT sensor, so I have to decide which cylinder bank to monitor.

[viper501]

i'm more concered with if either cyclinder bank runs hotter or leaner than the other. this is a generic product and the mafuf. doens't have specific information for a pcar application. i only have one AF sensor and one EGT sensor, so I have to decide which cylinder bank to monitor.

What you need are two monitors, one for each bank. Since you don't have that, I'd probably suggest doing the EGT in one bank and the A/F in the other. Not great but at least that way you have some idea of what is going on in both banks. I'd also suggest you get yourself to a dyno with loading capability (i.e. a Mustang, not a Dynojet) and use a wideband O2 sensor on both sides to make sure tuning is correct.

Finally, as to placement, optimally, you would use as many sample points as possible. Since you can't I'd suggest researching which cylinder runs hottest/leanest and use it as a starting point (e.g. certain cars are notorious for lean run in certain cylinders such as the Miatas with forced induction typically run lean in the #4 cylinder due to poor cylinder head cooling of #4 )

Just my thoughts. Any ideas from your s/c installer?

Oops, just realized your question was which cylinder runs lean. Someone has got to have that information.

In the Miatas mentioned above, #4 runs hot because it is at the end of the coolant flow through the head on a head / engine designed for a transverse mount that has been turned 90 degrees to mount longitudinally. Maybe examination of the coolant flow pattern on the 3.6 would help.