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My spark advance table

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Old Nov 15, 2020 | 05:23 PM
  #1  
josh96821's Avatar
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Default My spark advance table

I'm running 640cc floweforce injectors and a T3/T4 China charger on stock internals at 10psi. Is this spark table ok any changes I should make?
Old Nov 15, 2020 | 10:06 PM
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Also here is my afr and ve currently. Sorry for the crap pics.

Old Nov 15, 2020 | 10:53 PM
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Your VE table really does us no good, it's really just the actual AFR that matters. So as long as your VE table delivers what you're targeting and you're happy with the drivability, it's perfect.

You're targeting too rich above 200kpa. No need to go below 11.4-11.6 anywhere. You'll probably never hit it unless you have a really pathetic turbo no wastegate, but 120kpa is a little lean for my tastes, and there's no reason to increase your target after 6000rpm.

Spark table looks ok in my eyes, there's some stuff around idle/800rpm that you could fix but not dangerous. I like to drop about 1 degree per psi of boost, and your 100kpa row looks correct. So you're not really dropping as much advance as I would call "safe", but at a certain point you will just be retarding too much and leaving power on the table. Only knock detection and a dyno will tell.
Old Nov 16, 2020 | 01:01 AM
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Thank you curly thats the info I was looking for ill make those changes. 🤙
Old Nov 16, 2020 | 12:46 PM
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Agreed with all Curly said.

On a ‘99, spark in boost is advanced for a tune that has not been checked for knock on whatever fuel you are using, unless E85.
DNM
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