[Diy_efi] Crank sensor for knock detection?

[Programmer]

Hardly--if you saw the spark curve of the Dodge product, you'd know there's
no way it "should" knock.

Lyndon

----- Original Message -----
From: "PuffnSmoke" <puffnsmoke at cox.net>
To: "'List for general do-it-yourself EFI talk'" <diy_efi at diy-efi.org>
Sent: Thursday, March 13, 2003 12:48 AM
Subject: RE: [Diy_efi] Crank sensor for knock detection?


> Certain models, Ford trucks in particular (F series) use knock sensors
> and are MAF (and are NA), Dodge trucks do not use knock sensors and are
> speed density (and are also NA).  I was just curious if there is any
> form of real time detection and timing compensation done.  I was
> assuming the engine control system on the Dodge was more intelligent
> that it actually is.
>
> Mike
>
>
>
>
> > -----Original Message-----
> > From: diy_efi-bounces at diy-efi.org
> > [mailto:diy_efi-bounces at diy-efi.org] On Behalf Of Mike
> > Sent: Wednesday, March 12, 2003 12:46 PM
> > To: List for general do-it-yourself EFI talk
> > Subject: RE: [Diy_efi] Crank sensor for knock detection?
> >
> >
> > Some of the knock sensors I have heard about (pun;)
> > can be really well hidden in weird locations behind
> > bits of the engine.
> >
> > If you are talking n/a - I doubt many standard models
> > have knock detection. Turbo models is pretty much a
> > definite for OEM tuned setups, some people just
> > use a stethoscope or long tube wth rubber cup
> > when tuning and dont bother with
> > a sensor then map the onset of knock and back off
> > a tad when cementing the final map when off the dyno.
> >
> > I'm curious why you are convinced there must be detection,
> > for a n/a in factory tune - arent they pretty conservative
> > so a knock detect isnt necessary ?
> >
> > What are you referencing to come to your post query ?
> >
> > rgds
> >
> > mike
> > ps: too late for me, back to bed
>
>
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