Quote:
Originally Posted by PQ
You'd think so but Vengeance dyno tuned it and gave it a clean bill. And it didn't do this when it first left them.
Can a tune regress at all?  |
a dyno tune doesn't always men a good idle tune. I edited my last post....
and no a tune won't regress but idle issues can show under different circumstances when not complete.
any time you change the tb size or way air flows into the engine you should retune the idle. a cam drastically alters this. a tb alters this, even a ported one. most people rely on trims to try and compensate but it doesn't always work under all conditions.