[Shotimes] Just out of curiosity... (LPM)

[Alan Fanning]

Am I correct in thinking that with a Tweecer and WB O2 sensor, you're able
to measure the A/F ratio continuously, rather than having to be on a dyno
with WB O2 sensor up the tailpipe?

As for the WOT fuel tables, how much fuel can you pull out without risking
being too lean? And why does doing so require higher octane gas?

This is all of considerable interest to me as I have a high compression
SHOSHop engine that is limited to 91 octane premium (now at ~$2.80/gallon
btw). 

    Alan



Mark N. wrote:

> 
> With a stock, or just BOS type car, the biggest "performance" things to
> change are really just the low rpm advance (some torque to be gained) and
> then the fuel tables, to get away from the really rich WOT fuel tables.
> Note both may/probably will require higher octane/good fuel to work right,
> but the rest of the "tuning" stuff is for turning the fans on sooner maybe,
> bumping up the idle if you have UDP's, etc etc.
> 
>> Will the tweecer improve on that?
> 
> Both do the same thing.  Assuming you are changing the same settings,
> neither is going to have an improvement over the other.  They do the same
> thing.
> 
> mark