TTS Stage 1 - APR vs Unitronic vs Revo
03-13-2021, 04:03 PM
#1
AudiWorld Junior Member
Thread Starter
TTS Stage 1 - APR vs Unitronic vs Revo
The bug bit me. 2017 TTS and I want a Stage 1 tune. Anyone have recommendation?
Last edited by Stevep67; 03-13-2021 at 05:18 PM. Reason: Removed picture
03-22-2021, 10:28 AM
#3
AudiWorld Junior Member
I just installed Unitronic Stage 1 plus and the TCU Stage 1 on my 16TTS. Wow....what a change. I bought cable and did it myself. worked really smooth. With the cable, I can turn back to stock whenever I wish and then re-install the Stage 1 or Stage 1 plus as often as I like.
03-24-2021, 08:35 AM
#5
AudiWorld Junior Member
APR Stage 1 (low torque, 91 octane) installed 2 year ago. 20 track days without issues, but changed to 1 heat range colder plugs gapped to .025 (RS7 plugs). Still very streetable.
03-25-2021, 06:00 AM
#6
AudiWorld Super User
Did you change heat range because of problems with OEM plugs?
I have some friends with APR Stage 1 and had not issues with OEM plugs. I saw APR highly recommended changing the gap to .025. I think they also recommend changing plugs every 20K?
03-25-2021, 06:37 AM
#7
Stage 1 is meant to squeeze more out of the engine with NO hardware upgrades. Stage 1+ maybe some upgrades, but not much. Stage 2 is where you have to think about coils, plugs, intake, down pipe and recommended intercooler.
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03-25-2021, 06:54 AM
#8
the gap matter is quite strange, APR recommends .025, while other tuners like Revo or Unitronic to stay with std gap (0.32) and even grade (7)…
Last edited by kevin#34; 03-25-2021 at 06:57 AM.
03-25-2021, 07:10 AM
#9
AudiWorld Junior Member
OEM plugs gapped to .025 are fine, but I went with 1 heat range colder so that at the end of a 20 minute session on the track the hot engine is not pulling timing at redline and I am still getting max performance. (This is based on internet posts, not data that I have seen, so "maybe".) I did pull the plugs at 9K miles, they show zero wear and no signs of carbon fouling. Probably "inspect and replace if necessary" at 20K miles.
03-25-2021, 07:23 AM
#10
AudiWorld Junior Member
Re: plup gap - After getting the tune, I did one track day with OEM plugs, standard gap, and had a misfire that put me into limp mode, which reset after I shut off the engine and restarted. Talked with a Golf R driver with the same APR stage 1 tune, and he had the same experience. Since switching to the colder plugs (NGK) with the narrower gap, I have had no repeats of this problem (or any other problem) over 19 track days.