Hi All, I hope you're well and can help with this headscratcher.
I have a 2020 SQ7 TDi, and recently had it stage 1 tuned. Outcome was ~100BHP improvement and ~150NM torque improvement. Very pleasing indeed.
A quick scoot over to a quiet, straight flat road for a 0-60 test (60mph road, ICYWW) and the 0-60 times were no different, despite manual and auto launches. The guy who did the tune sounds pretty knowledgeable and I have no reason to disbeleive his reasoning for this (I'm not technical enough to challenge), but he said he did not remove the torque caps from 1st gear as this can lead to damage to the rear diff. If so, I'm happy for this to stay in place and will have to accept the results as they are, but it just doesn't accord with different modding/tuning vids on YT where they do get 0-60 gains. Don't get me wrong, I'm not a boy racer wanting to go drag racing from the lights, but it's the only way to measure the improvement for me at the moment. Am I missing something, or is this right.
Should also add, not the most scientific but I tried to compare like-for-like before and after (fuel, weather conditions, occupants etc), and the times were exactly the same.
Any thoughts? Thanks in advance.