Oxygen Sensor Gurus
Thread Starter
Burning Brakes
Joined: Jul 2000
Posts: 1,118
Likes: 0
Oxygen Sensor Gurus
Ok, what's up with this gadget?
http://cgi.ebay.com/ebaymotors/ws/eB...tem=1843339312
http://cgi.ebay.com/ebaymotors/ws/eB...tem=1843339312
Pro
Joined: Mar 2002
Posts: 511
Likes: 0
From: St. Louis MO
Re: Oxygen Sensor Gurus (Chris81)
Cuople things. O2 sensors are designed to work around the 14.7:1 not 16:1. 16:1 is a very lean mixture for any car. 14:7 does give the best results for emissions most of the time if the engine is in tip top shape and the design of the heads intake and fuel maps are perfect and the feul used is very pure test feul. This isn't race gas, but its been tested and restested to be pure and exactly the octane rating they put on it. So for a real car to make the power advertised it will run rich under heavy loads, near stoich to lean when in a curising mode. You want the car to go lean at this point to get the higher gas milage numbers everyone likes to see.
So does it work probably, does what he says richens it up all the time. Will it help probably not. Will it decrease your gas milage, yep. Will you gain any power, probably not.
So does it work probably, does what he says richens it up all the time. Will it help probably not. Will it decrease your gas milage, yep. Will you gain any power, probably not.
Race Director
Joined: Sep 1999
Posts: 11,358
Likes: 379
From: Plano TX
Re: Oxygen Sensor Gurus (71coupe)
This "device" is pure bull. Stock cars run 14.7:1, not 16.7:1. Besides, all car using standard sensors go open loop at full throttle. In open loop, the O2 sensor is disregarded and the computer uses pre-programmed fuel values. At full throttle the engine will run about 12.5-13.5:1 for max power.
The only thing this device will do (if it does anything at all) is decrease your mileage and foul plugs. It would also make you fail an emissions test. Full throttle performance will be unchanged in any case as the O2 sensor is not used then.
The only thing this device will do (if it does anything at all) is decrease your mileage and foul plugs. It would also make you fail an emissions test. Full throttle performance will be unchanged in any case as the O2 sensor is not used then.
Race Director
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Re: Oxygen Sensor Gurus (zwede)
And what makes it specific to corvettes? They think if they slap 'corvette' on the ad people will buy it and at a premium. Of course in this case anything above $0 is a premium. :bs
