Drag Racing Discussions > Front Engine Dragsters

Wide Band O2 tuning for an FED

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MikenMpls:
Has anyone played with using a wide band O2 sensor and gauge to tune their 8 stack injector (on Alcohol)?  Knowing that most of these devices have data recording capabilities it seems plausible that using one could help tune all aspects of the fuel curve (idle to full throttle). All of you have tried most everything at least once ,what were your experiences with this? Thanks!

ricardo1967:
Mike, do you mean one O2 sensor per pipe (8 total)?

wideopen231:
Lots using them.Most for injection and carb run one.While one will work if you use plugs to tune cylinders to be equal.8 would be optimal or one with 8 egt's.I use EGT's.Thing with using them is you have to understand there is no magic number.While one car may be perfect at 1200* the next may need 1300 or 1050.They are great for keeping check on system and as referance as to what is happening compared to other runs..
Now there are folks who swear by O2 and hate egt's.Like other things its what you are use to and how you use them.
If you can not use data recorder per rules then a O2 maybe perfect and if nothing else it will get you real close on system.

dreracecar:
First you must understand that alcohol is not gas and a sloppy fuel the way we use it.  Alc is also not a complete burn since it is consumed as a liquid and not a vapor(like gas). I believe the sensor would get overwelmed buy the amount of raw fuel left over in the exhaust. Exhaust heat out the port is a better way to moniter tuning.
 Very few things are new in the tuning world and if there was a way to use multiple 02 sen's it would already be out there on the market

oldmanreo:
all pro stock team and many comp. racers use o2 to tune their engines
include pro mod also .if i had the money i would use o2.as for alh. being a liquid
in the cyl.chamber i belive tht it would hydraulic the engine

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