2.0L 8v Questions

[brett@netacc.net (Brett Van Sprewenburg)]

There is a 10 year old article in VW&P discussing adding a knock 
sensor to a solid
lifter car (1.8L).  They discussed the same exact situation, whether or not the
solid lifter valve train with set it off.  They even consulted with 
some VW tech
people who basically said they weren't sure either.  So they tried 
it, and it worked
out great.  The engine was running 10.5:1, most of the ping went away after
the conversion...the only time it still pinged was going up hills under load or
something like that.  I was thinking of scanning it and 'webifiing' the article
for the scirocco.org tech procedure section like I did for the cis-e 
idle procedure.

==Brett


>Steve:
>I'm very interested in your statement about a knock
>sensing ignition system working on a solid lifter
>engine. I installed a complete 86 gti ignition on my
>2L 8v engine, observing the correct knock sensor
>torque as per bentley manual. long story short, i was
>plagued with detonation. I completely trouble shot the
>whole system, as per the bentley manual. No faults
>found. I then removed the complete system from a car
>known to be good and tried that. Same deal. I then
>installed a non knock sensing system, and it ran fine.
>I can only conclude from my own experience that a
>knock sensing system doesn't work well with
>mechanical lifter. If you could direct me to any
>information regarding modifications that might allow a
>solid lifer/knock sensing setup to work, I'd greatly
>appreciate it.  Thanks!
>Dr. Dubsalot
>
>Merry Christmas!
>
>
>
>
>On Tue, 18 Dec 2001, Doctor Dubsalot wrote:
>
> > head is Hydraulic. Using the hydraulic head will
>allow
> > one to utilize a knock sensing ignition system from
> > say, an 85 golf gti. With this setup, you can run
>your
>
>I have heard, from a number of sources, that one can
>use knock sensing
>ignition with a mechanical head. the knock sensors
>bolt low on the
>block
>and filter out everything except teh frequency they
>monitor, which is
>very
>different from the frequency of valvetrain noise.
>
>No personal experience in this area, but the
>explanations i have heard
>make sense to me. so, i'd put knock sensing in a car
>with mechanical
>lifters, for sure.
>
>take care,
>
>Steve
>
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 \/  '84 Scirocco (ITB racer 2B) | "Hot VW's, take two home. They're small"
\/\/ '88 Scirocco 16v (Show), '92 Passat 16v (Winter+) | - brett@netacc.net