Tune longevity/relevance over time?
 

I am wonderign about this...lets say those NE crew tunes on firday were done in february, in 40*F weather...
Are those tunes still good in the sense of retaining power and safety when the temperature hits 100*F in July? and also, How long does a good tune last, as things may constantly change in your car from simple wear and tear?

Re: Tune longevity/relevance over time?
 

A good tune will last until one of two things happen:

1. You change something on your setup that will affect it (Different turbo, exhaust, etc.)
2. Your motor blows.

IMO it doesn't change your AFR a ---- ton when going from warm to cold weather or vice versa. I tuned my car in August and I've been running it all winter. It's a tad leaner than the warm weather but nothing horrible.

Re: Tune longevity/relevance over time?
 

Ok, cool. That's what I figured, 40* doesnt seem to have much of a difference when it's bieng dragged through 1000* exhuasat pipes and an intercooler.