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Where do you set max spark in the 7747?

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Old Jan 30, 2002 | 10:28 PM
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Where do you set max spark in the 7747?

I was reading the archives and saw that you want your peak SA to occur around your peak torque, but all posts were for 730 ECM's.
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Old Feb 1, 2002 | 04:40 AM
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Car: 91 Red Sled
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Not sure about that when using TBI and the 8746 ecm. TPI (7730) has a different torque curve when swapped onto most engines so I don't think it's something you could just say is true for TBI.
Try it out. I noticed that if I have too much advance too early and get good traction the car hates me. Also the peak torque is usually not a specific rpm. You'll notice that it's flat so the max timing could be a span of 1000rpm or more depending on how accurate you think you know "where" your max torque is.
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