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Thread: How to advance the timing on SOHC?

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    How to advance the timing on SOHC?

    Anyone have a guide on how to do this? Will it help horsepower? Will I need to run higher octane fuel?

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    Grab a timing light and turn the distributor the appropriate direction. I'm sure you could get a couple degrees out of it if you run 91-93.

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    Hopefully I can get a couple degrees out of it without having to run higher then 87 octane since gas prices are ridiculous.

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    The one. The only. verified Feedback Score 14 (100%) stealthee's Avatar
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    You can only turn it very little before the cap hits the plenum.

    Also if your SOHC is a later model its not adjustable without modification because the bracket is not slotted.

    I had mine as advanced as it would go and never ran anything other than 87. Never heard any audible pings.

    As for gains I am not sure. Hard to say really. I still was getting 25 mpg in daily driver duty.

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    Rather then modifying it would I just be able to swap mine for the slotted one? Finding a part # though for that bracket is gonna be a pain in the ass I bet.

    Edit: It's a 98

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    98 is not slotted if I recall. The 94 is slotted but will not swap into a 98 car because of the harness being different that plugs into the distributor itself.

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    Instead of making a new thread I will ask here.

    Is this possible on a 95 DOHC? I don't know much about the internals and I can't afford the turbo upgrade atm so I was thinking about taking it to a shop w/a dyno and maybe having them tune it, I run 92-93 always.

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    No, the DOHC engine uses coilpacks. The 91-92 years have the cam & crank angle sensor in the same housing, which can be used to adjust base ignition timing, but this is the only exception.

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