S2000 Engine Management Engine management topics, map and advice.

Fuel & spark trigger

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Old Mar 31, 2011 | 10:00 AM
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Default Fuel & spark trigger

Guys,
In a month or so I'll install my BC stage 2 cams with woodruff offset keys, +2 in/+2 ex, can someone confirm that the timing will be automatically advance 4 degrees and the fuel injection will also start earlier due to the ECU crank + cams position sensors monitoring, (cams sensors will be advance), thanks.
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Old Apr 1, 2011 | 07:57 AM
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Originally Posted by rog06s2k
Guys,
In a month or so I'll install my BC stage 2 cams with woodruff offset keys, +2 in/+2 ex, can someone confirm that the timing will be automatically advance 4 degrees and the fuel injection will also start earlier due to the ECU crank + cams position sensors monitoring, (cams sensors will be advance), thanks.
Anybody? may be I should have posted in "under the hood"...
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Old Apr 1, 2011 | 09:27 AM
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I beleve you are probably correct.
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Old Apr 2, 2011 | 12:41 PM
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Originally Posted by gernby
I beleve you are probably correct.
Thanks Gernby, that is what I figure out but haven't read it black on white, I'll send you a before & after road log with some notes, I'll also install a PRM intake with the trumpet inside the fender with the fake bumper intake opened up.

Originally Posted by Evans Tuning
Put a timing light on the car and see were the base ignition timing is referenced. That is the only true way to know what is going on with the ignition timing. You have to make a jumper wire between the coil and spark plug in order to use a timing light.
Agreed, that will probably show me that my timing is slightly advanced, less than I thought because the offset keys will probably bring back the timing close to original compensating for chain stretch (retard)...
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Old Apr 3, 2011 | 07:46 AM
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Originally Posted by Evans Tuning
Put a timing light on the car and see were the base ignition timing is referenced. That is the only true way to know what is going on with the ignition timing. You have to make a jumper wire between the coil and spark plug in order to use a timing light.
most inductive lights will work off the loop near the back of the head.

normally when you change cam timing ign timing changes as well.

Has anyone done any testing w/the +2 deg on both cams? I havent seen it posted.
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