[Diy_efi] Lead fuel compaible O2 sensor

[gary]

> > As far as I know there is no such thing, usually on cars
> > that run leaded fuel, such as race cars, they will use
> > exhaust temp sensors to monitor a/f ratios.  Somebody
> > else may know more about that that me though....

> Also to set the record straight there is a pretty big difference 
> between a WB o2 sensor or as some call it a lambda sensor 
> and a conventional o2 sensor heated or not..

Yea, one is used to determine actual AFR #s, and the other is 
used by OEM as a glorified 'switch'.  Philip, you were referring 
to race car tuning.  Why would you imply using a NBO2 sensor 
for tuning, in a performance or race car environment?

GAS


----- Original Message ----- 
From: "Phillip Kuhn" <pmkls1 at yahoo.com>
To: <dh at busb.com>; <diy_efi at diy-efi.org>
Sent: Sunday, July 03, 2005 8:49 PM
Subject: Re: [Diy_efi] Lead fuel compaible O2 sensor


> Actually the egt measurements I was referring to is
> used by drag racers as a method of engine tuning not
> for engine management. The egt sensors are used for
> datalogging and viewing after a pass or they are used
> on a dyno during testing (I believe they are used on a
> dyno by many not just dragracers). I think that I
> should have worded my original reply better, but I was
> just trying to state that there are other methods for
> calculating A/F ratio sine most motorsports these days
> still dont use electronic fuel injection or at least
> not in the conventional manner.............
>  Also to set the record straight there is a pretty big
> difference between a WB o2 sensor or as some call it a
> lambada sensor and a conventional o2 sensor heated or not......