home made air/fuel gauge

[gregvhen]

anyone done this? im gonna try it this weekend http://www.redline.lt/magazine/spec-features/article/article/17/1/



EDIT: added bigger pic from same site

[Deros514]

You'll get a colorful strobe light and that's about it. You could argue its better than nothing...IMO plug chops are probably the same if not better. For serious tuning you'll need a wideband. I had an AEM UEGO that I got for around $180, prices will vary widely for what is essentially the same thing.

[black and silver twin]

if you gonna do it, get a wide band with a digital gauge that will give you hard numbers. or just go to a dyno and have them put a lambda probe in for a few runs.

[gregvhen]

yea, i guess so, also found this http://www.redline.lt/magazine/car-gadgets/?tx_ttnews%5BpS%5D=1241125200&tx_ttnews%5BpL%5D=2678399&tx_ttnews%5Barc%5D=1&cHash=573517b4cd.

I downloaded it, (or something like it) on my ipod touch and need to test its accuracy tommarow.  the one i got is calle BOSCH Light Em' Up Dyno

[black and silver twin]

Ive used that app. Its fairly accurate as long as you get the weight of the vehicle at the time of the run right. if you enter too much weight it will say your HP is high, if the weight is too low the HP will be low as well. So you must be exact with the weight PLUS the driver and any people/stuff in the vehicle. Also it must be rigidly mounted in an upright position (hard on a bike) and you cannot launch hard. If you do it all correctly its accurate to within a few %.

[saxman]

Any sort of air fuel gauge hooked up to a narrowband o2 sensor is a complete waste of time. It provides zero useful information.

[black and silver twin]

Any sort of air fuel gauge hooked up to a narrowband o2 sensor is a complete waste of time. It provides zero useful information.

correct