C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Custom chip and timing question

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Old Oct 10, 2002 | 03:18 PM
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JamesHolleyByGolly's Avatar
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Default Custom chip and timing question

If you have an aftermarket chip, should you leave the timing stock? I have a TPIS stage 3 chip and I notice my car runs better at 6 degs than it does at 8 or 9. It pings at anything abouve 6, is this normal? Thanks :rolleyes:
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Old Oct 10, 2002 | 03:24 PM
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Default Re: Custom chip and timing question (JamesHolleyByGolly)

Just play with it so that you get the best times, mine runs good on 8* with the stock chip.
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Old Oct 10, 2002 | 03:26 PM
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Default Re: Custom chip and timing question (JamesHolleyByGolly)

that is because the timing curves in the PROM are added to the BASE timing of 6deg also listed in the PROM.

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Old Oct 10, 2002 | 03:34 PM
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Default Re: Custom chip and timing question (-=Jeff=-)

Well, that 'splains everything. What do I know? :jester
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Old Oct 10, 2002 | 03:50 PM
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Default Re: Custom chip and timing question (JamesHolleyByGolly)

For the millionth time....leave the timing at 6* :D
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