>
> So he ran a 14.4 "Bone Stock" and a 14.2 with all the mods??? Something
> else is wrong here...and he's got all the "good stuff" in there but
> nothing to help is "breathe" better. (Hint hint...Throttle Body). ;)
>
No he had the MP PCM,headers,cold stat.,slicks to run the mid 14s. Stock it
ran 15.2s or so.
> I normally don't trust the O2 sensor voltages for A/F since their not a
> Wide-Band. Dyno testing for the A/F is normally the best route. (Same
> thing goes for A/F meters...stick a separate O2 sensor in the exhaust
> for them.)
Yeah its not 100% accurate, but atleast it gives an idea anyway.Problem is
,nearest dyno is 4 hours away, and even then not sure if it has a wideband
O2 or not.
>
> On the timing issue, again...we can thank Dodge for that screw-up. Some
> run really aggressive and others...well...you've seen it on your buddies
> truck.
>
> Other neat little trick: Reset the PCM and then drive like a granny
> with the A/C in the ON position for about 100-200 miles. Then...take it
> to the track, turn the A/C off and you'll notice a BIG improvement in
> overall performance (and not just because the A/C is off.) The Computer
> thinks it's under a slight load at all times and readjusts the long-term
> for it.
Ok, I'll have him try that.Anyone ever try modifing a crank sensor to
advance the timing more? Not sure how much you could gain ,in deg. that is.
Dave St.Louis
----------------------------------------------------------------------
98 GRAND CHEROKEE LTD. 5.9L {14.82@91}
89 LEBARON GTC Conv. Intercooled 2.5 {14.13@95}
88 SHADOW ES Intercooled 16V DOHC 2.2 {11.95@122}
89 SPIRIT ES
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