Yes, you are 100% correct, which is why I didnt feel any increase in WOT
until I put a Jet II on. That is how you correct for this with a speed
density system.
Bill
'97 SS/T
On Tue, 13 Apr 1999 Dak99RT@aol.com wrote:
> OK, lets say we have an R/T with a ported throttle body (52 millimeter or B&F
> Stage 2 equivalent), Mike Leach headers, low restriction cat back exhaust,
> and a high flow air filter. This will increase the airflow into the motor
> substantially. At most RPMs the oxygen sensor will sense the additional air
> and widen the pulsewidth of the factory fuel injectors and match the
> additional airflow with the correct amount of fuel. Does any one know if the
> O2 sensor works at Wide Open Throttle? I don't think it does... it goes to
> open loop and the injector's pulsewidth is changed yet again to work at the
> factory set "fuel tables" which may at times be less fuel that needed as the
> factory settings will not know that you added these additional airflow
> devices. There is the possibility of adding too much air and the factory
> computers "fuel tables" will not provide enough fuel... leading to a possible
> lean condition that can break a motor. Does anyone know if this is possible?
> We already know that Shane and Alan's R/Ts have gone low 14s without running
> too lean because they haven't blown a head gasket or burned a valve or
> piston. But at what point does more air become too much air and need
> additional fueling like bigger fuel injectors? Mike Catlin... does your R/T
> idle correctly with your new injectors? My Turbo Buick ran rich on the street
> with my bigger injectors but was safe at WOT. Any input?
> Charles Smith
> 99 Dak R/T
>
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:13:44 EDT