Originally Posted by
chri_mar
This setup was on an 06 originally, dyno tuned and ran for 2 yrs. Then swapped to my current 5.7 and this year put in forged bottom end bored .020.
It was dyno tuned again after the swap into this car. Since then I have put on smaller pulley to go from 7lbs to 9lbs approx. Ran for 1 yr with the smaller pulley without touching the tune, but this has persisted through all builds. Like I said above the tune works great for power as my race times tell me and daily driving is fine until I go into boost for more than a few seconds.