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Crank Position Sensor Clearance #'s

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Old 08-05-2010, 10:38 PM
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Default Crank Position Sensor Clearance #'s

Does anyone know the spec for reluctor wheel to sensor spacing.

LS3 Block
Callies 4" Stroker Crank 24T
Factory LS2 Sensor

This is in my GTO.

I am getting misfiring under load and this may be the problem.
Old 08-06-2010, 09:42 AM
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Did you change your cam shaft to a more radical cam ? The ruff idle cams will give a misfire at idle. I believe the clearance between the reluctor ring and sensor is around .015" to .020". Mine has .020" You may just need to have it tuned out.
Old 08-06-2010, 01:57 PM
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Originally Posted by Randy WS6
Did you change your cam shaft to a more radical cam ? The ruff idle cams will give a misfire at idle. I believe the clearance between the reluctor ring and sensor is around .015" to .020". Mine has .020" You may just need to have it tuned out.
Ed from VA Speed tuned the car. It isn't the tune.

It doesn't miss on the dyno, only on the road under load.

Backfires and stumbles fairly bad.

Mainly in 4th, 5th and 6th gear.

All new plugs, wires, coil packs, coil pack harnesses, ect...
Old 08-06-2010, 02:33 PM
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.015-.020 radial and .002 lateral runout
Old 08-06-2010, 09:24 PM
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thanks guys



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