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  #1 (permalink)  
Old 24th April 2003, 06:29 AM
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Join Date: 25th March 2003
Location: LI, NY
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Default Will this work on a GT??

LED A/F Ratio meter...heard good things over at the SRT forums.
http://www.dawesdevices.com/sd.html
Any Thoughts?
Anyone know anything about GT O2 Sensor voltage??
Thanks!
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Old 24th April 2003, 06:36 AM
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Take from that site:
Our gage shows everything below .87 volts as too lean, by illuminating a red light. So, at a glance, you know "red is bad, lift throttle". From .87 to .90, a yellow light is illuminated, indicating that you are "in the zone". You will want to think twice about increasing boost without adding fuel. From .90 to .93, the green light is illuminated, indicating that you are getting enough fuel and are a little on the rich side. Some people prefer to stay there and enjoy an extra margin of safety, but if you want to start increasing boost, the fuel is there. From .93 up, the blue light illuminates, indicating that you are very rich, and may want to consider lowering fuel delivery or raising boost for more power. So you see, the resolution is actually improved over the range where you need it (.03 volts per light vs .1volts per light), while eliminating the distracting flashing lights that you don't use.

?????
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Old 24th April 2003, 10:23 AM
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Too granular a display for my taste. With a larger scale you have a better indication if you are tilting towards leaner or richer - with only 1 light representing each, it is difficult to tell which way you are tuning.

There are several modifications that can be done to the AutoMeter guage to cahnge it's 'speed' of display, as well as using it as a 'wideband' display. Google around a bit.

Brad
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Old 24th April 2003, 08:49 PM
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Thanks Brad..
I also like the Autometer much better...$$$ for the gauge and O2 sensor tho..the dawes is MUCH cheaper!
My gauges and MBC hopefully will be installed this weekeknd.
Think ill be ok for a while with just Boost and EGT??
Dont really want to "push it" with the boost anyway...
(yea Im saying that now...we'll see after I install!!)
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Old 25th April 2003, 05:11 AM
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Join Date: 4th April 2003
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Default

i just hooked up an apexi s-afc and you can check the o2 voltage on that thing and adjust fuel according to.no tacky guages just number to the thousandths. pretty acurate. i have been going through every 500 rpm and getting the o2 voltage between .900 and .920. when it was factory i was hitting as high as .985 in the higher rpms. i have a n/a though so the turbos might be a little different but i am sure it would still work.

mike
 


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