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The Terminator
Terminator Talk
Ironhand Racing Now Carries J&S Safeguard Knock Control System
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<blockquote data-quote="John at J&amp;S" data-source="post: 11790413" data-attributes="member: 39415"><p>The unit is calibrated to work with a "donut style" sensor, as shown above.</p><p></p><p>There are several brands, electrically they are all similar.</p><p></p><p>Sensor location is not that critical. We were running out of daylight when Stew and I did the beta install on his HD, so we didn't take the time to track down the wiring to the (unused) factory sensor. I brought a Bosch sensor with me, so we looked for a spot to mount it. There just happened to be an 8mm stud sticking out of the driver's side cylinder head, so we took a chance on that. It worked great, then two weeks later Stew connected to the centrally located factory sensor. The results were identical.</p><p></p><p><a href="http://picasaweb.google.com/JohnPizzuto/JSVampireInstallation#5200857299633473250" target="_blank">Picasa Web Albums - John - J&S Vampire I...</a></p><p></p><p>Blower and valve train noise are not a problem, but piston slap can be, if you are running loose fitting forged pistons. I like to see no more than 0.006 clearance.</p><p></p><p>Decel or light loads can also cause piston slap, even with stock pistons, so the unit ignores the sensor if it senses more than five inches of vacuum.</p></blockquote><p></p>
[QUOTE="John at J&S, post: 11790413, member: 39415"] The unit is calibrated to work with a "donut style" sensor, as shown above. There are several brands, electrically they are all similar. Sensor location is not that critical. We were running out of daylight when Stew and I did the beta install on his HD, so we didn't take the time to track down the wiring to the (unused) factory sensor. I brought a Bosch sensor with me, so we looked for a spot to mount it. There just happened to be an 8mm stud sticking out of the driver's side cylinder head, so we took a chance on that. It worked great, then two weeks later Stew connected to the centrally located factory sensor. The results were identical. [url=http://picasaweb.google.com/JohnPizzuto/JSVampireInstallation#5200857299633473250]Picasa Web Albums - John - J&S Vampire I...[/url] Blower and valve train noise are not a problem, but piston slap can be, if you are running loose fitting forged pistons. I like to see no more than 0.006 clearance. Decel or light loads can also cause piston slap, even with stock pistons, so the unit ignores the sensor if it senses more than five inches of vacuum. [/QUOTE]
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Ironhand Racing Now Carries J&S Safeguard Knock Control System
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