Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

advancing ignition timing for power.]

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Old Feb 21, 2010 | 04:58 PM
  #1  
88GTBlack's Avatar
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From: JERSEY ALL DAY
Year: 1989
Model: Cherokee
Engine: 4.0L
Default advancing ignition timing for power.]

can it be done? I got an 89 RENIX and im wondering if I can bump up the timing on the distributor and run 89 octane without pinging will it make any additional power?
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Old Feb 21, 2010 | 05:00 PM
  #2  
Abovetimberline's Avatar
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From: Chico,ca
Year: 89
Model: Cherokee
Engine: 4.0
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No you cannot adance the timing,it is oinned and not adjustable.
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Old Feb 21, 2010 | 05:00 PM
  #3  
mike albo's Avatar
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Joined: Mar 2009
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From: Loomis,California
Year: 1987
Model: Cherokee
Engine: 242 inline six
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You can't advance the timing its fixed.Run mid grade with Lucas fuel injector cleaner in every tank.
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