[s-cars] Potential reason why the "370" software causes pinging

Joe Pizzimenti joe.pizzimenti at gmail.com
Wed Dec 29 12:43:07 EST 2004


Think of it more like medicinal marijuana than crack cocaine.  :-)

IMO, anything more than 21 or 22psi on 93 octane pump gas is just
asking for trouble.  Perhaps manually turning down the boost or using
an MTM 1+ boost chip with that timing chip will solve your pinging?

Or using a VMAP and cranking it down accordingly.

Joe

On Wed, 29 Dec 2004 09:36:05 -0800, Dave Forgie <forgied at direct.ca> wrote:
> Joe:  Suggesting that octane boost (like the 5 gal can of toluene in my
> garage) is the cure for my problem is something like suggesting crack cocaine
> is the cure for insomnia.  Waaaaay too addictive.  I posted the same
> "SMS/7.8:1"  info to Audi World and Mihnea replied that he believes that:
> 
> "The 370 HP chipset is a Lehmann fuel/timing chip (originally sold by Ned as
> his own in his Stage 4 chipset) and a TS Tuning (Tom Schmalz)  boost chip. I
> don't know if the boost chip is another copy of a copy, but it's definitely
> not a good chip, as the maps that
> affect the knock sensors have been changed. The only reason for pinging in
> the "370" sw is the way too aggressive timing advance and lack of knowledge
> when changing the knock sensors "window" for listening to knock."
> 
> Hmmm.... I guess I had my TSTs and SMSs mixed up.  But still, it does seem to
> make sense, even without the 7.8:1 compression factor.  I am working towards a
> FMIC so I guess we'll see if I need new software (or water injection) after
> that. /  Dave F.
> 
> Joe Pizzimenti wrote:
> 
> > Solution: Increase octane.
> >
> > Whether by a water/methanol injection system or the ever so addictive
> > blue cans of VP Racing 109 octane unleaded "C12", a little more octane
> > will solve your problem.  Or a FMIC.
> >
> > Joe
> 
>


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