VE table adjustment and varying weather conditions

[joshclifford84]

Is it common practice to tune the entire VE table within a single day? I have been making adjustments to the VE table and weather conditions have varied greatly during my time tuning. I was assuming the IAT is taken into consideration when I make a change to the VE table so that it scales appropriately. I am finding the VE I set last summer was not sufficient during the winter.

I am thinking I need to tune entire VE for a given ambient weather settings. Then use the IAT scaling to make the corrections for temperature?

[ol boy]

In sort.. yes, you have it right.

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[nathaninwa]

Agreed. I did this a few summers ago. Ambient day was 65*, I went for a well sorted drive in all sorts of conditions for about 3 hours in the early afternoon

Noted on the iat correction table that 65* was hinging point. As it got warmer I fixed the air correction till I was 100% ego, and the same with winter temps. I'm happy say year round my tune is within 5% ego all the time now

[joshclifford84]

Thanks for the replies. I got lucky couple weeks ago and it hit almost 70F here in central ny. I re-tuned VE in that day and it seems to have improved. It's now back to winter weather and I'm very happy with how its running now. Just for reference, I'm running MS3X on 13' genesis with GM IAT mounted in the IC pipe right before the TB. Again, thank you for your replies.