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JWT ECU Data Logged AFR!

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Old 09-12-2004, 07:02 PM
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JWT ECU Data Logged AFR!

I got my PLX WB02 hooked to my Greddy Profec EO1. From what I can tell it will only record the signals that are on the display when you start the record, so that limits it to 3 signals at a time. I chose RPM, PSI and AFR. I will do others because I can display MAFv, EGT, Inj Duty Cycle and a few others. It records every 0.1 seconds. Here is what I got on a qouck 1st and second gear pull with the BC set at 14.5psi. I'd have liked to do a 3rd gear pull, but ran up on a car and had to get home. Boost build up is still weak IMHO compared to the .82AR exhaust housing, maybe a .4x is in order? AFR is better than I thought it would be avg ~11.1, good and safe, I'll lean it out a bit later on. Duty cycle at peaks at ~86% and MAFv is ~4.6, so Ive got a lottle room yet on the 516cc injectors. Does anyone know how to get a PC to read the SD card from the E01?

9/12/2004
1st Gear
RPM PSI AFR
3950 0.0 12.2
4100 0.4 11.8
4290 0.8 11.6
4480 1.3 11.4
4690 1.9 11.3
4890 2.6 11.2
5050 3.4 11.1
5290 4.0 11.0
5510 4.3 11.0
5670 4.9 11.0
5890 5.4 11.3
6050 5.4 11.2
6200 6.3 11.3
6370 7.2 11.2
6510 8.4 11.0
6680 9.5 11.1
6890 10.3 11.1

2nd Gear
RPM PSI AFR
4440 7.8 11.1
4570 8.5 10.8
4650 9.3 10.8
4780 10.0 10.7
4910 10.6 10.7
4990 11.3 10.9
5100 11.9 11.0
5220 12.3 11.1
5320 12.6 11.0
5440 12.8 10.9
5530 12.9 11.0
5640 13.2 10.8
5760 13.4 11.0
5850 13.5 11.1
5950 13.6 11.0
6000 13.7 11.1
6090 13.8 11.1
6180 13.8 11.2
6250 13.9 11.2
6300 14.0 11.1
6400 14.0 11.0
6470 14.0 11.1
6510 14.0 11.1
6620 14.0 11.0
6660 14.0 11.0
6710 14.1 11.0
6770 14.2 11.1
6850 14.2 11.0
6900 14.2 11.0
6960 14.1 11.1
7040 14.2 11.1
7100 14.1 11.1
7120 14.9 11.5
7200 13.6 11.8
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Old 09-12-2004, 07:14 PM
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cool info man. I would like to see a 3rd gear run, it "appears" that the boost is low to me. But 3rd gear would be better.

Is this JUST the JWT ecu or is the Emanage tweking the A/F as well?
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Old 09-13-2004, 05:23 AM
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Just e-manage.
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Old 09-13-2004, 11:20 PM
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Did you get the M-250 Mardi?
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Old 09-14-2004, 07:43 AM
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Yep, M250, great price!
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Old 09-14-2004, 08:24 AM
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Mardi,

I hadn't heard of PLX until you posted, but once you mentioned it, I saw their advertisement in my Turbo mag. I looked them up and I like that they have a linear output and for $300 using the cheaper Bosch sensors, so that's a deal.

However, I'm still not sure which is better....

No gauge w/eManage as digital display/logging:
1)Zientronix
2)PLX

*OR*
Analog gauge w/eManage as digital display/logging:

3)PLX w/$35 narrow to wideband convertor and cheap autometer 02-gauge.
4)AEM digitial and analog WBO2

I'm leaning towards 4). I believe it's non linear but programmable, so the eManage can get close to actual. I like that the AEM is both in one, instead of the PLX which would have the analog on the pillar and the digital display on the eManage.

What were your reasons for selecting the PLX? You didn't get the logging model, so you can't use the logging software off the PLX website, correct?

Any thoughts on the TechEdge?
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Old 09-14-2004, 12:06 PM
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AFAIK E-Manage cant log external signals other than the things its hoked to for is pigy back duties, so you would ned an E01 or Profec E01.

I got the PLX simply becaue of price. The 250 its a bargin because it does not have a display. I shopped on price alone, so all the others were ruled out by that parameter. I plan on dynoing to double check the AFR , but they all use the same sensor so it can be more than +/- 0.1 AFR anyways.

I may get the PLX adapter and hook it to the AFR display on the J&S gauge, seems perfect.
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Old 09-14-2004, 06:01 PM
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Originally Posted by MardiGrasMax
AFAIK E-Manage cant log external signals other than the things its hoked to for is pigy back duties, so you would ned an E01 or Profec E01.
You can run an input into the TPS input assuming your maps are based on KPA v RPM. I have my secondary wideband output programmed to output 1.0volt = 10:1af, 2.0v 20:1af...

so on emanage if i see TPS = 1.15 ... i know ... AF = 11.5:1
I wish there was a better way, but for now - it will do.
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Old 09-14-2004, 07:00 PM
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nice idea
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