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Originally Posted By: Shark So you're modded and are running canned tunes? Have to been monitoring AFR atleast? The APR tune can be "considered" an off the shelf tune but it's designed for the specific hardware that installed and options selected such as their runner flap delete and larger...

Since I'm coming up on another OCI I figured I'd post this. Engine has APR K04 turbo, High Pressure Fuel Pump, Audi S3 injectors, vent to atmosphere PVC system, plus more. I was running a Driver Motorsports 25psi tune on this UOA and did lots of heavy hard wide open interstate pulls while...

Originally Posted By: threeputtpar Are you running colder plugs with a smaller gap? It was recommended to me to do it with my tune, but it didn't make much of a difference. My tuner (and a few others) recommend NGK PRF7B with a gap of 0.028 or smaller. I was using a different NGK with stock...

Originally Posted By: edyvw Yeah, PU 5W40 is 6.8%, M1 8.8%, while RL I think is at 6%. Is that the Euro blend or standard RL? I'm not "super" concerned with spooling as my setup is almost over-responsive, I'm kinda interested to see what difference in spool speed I'd see. I am concerned...

I "asked" to have the intake valves cleaned when the turbo was installed but didn't get any pics and wasn't sure how much really got cleaned. The shop seemed kinda rushed... I've had a BSH racing vent to atmosphere catch can / PCV valve fix installed since around 20k miles so there may not have...

I really wish I would have knows about UOAs a few years ago so I could have got a couple of them with the Mobil 1. Now that I'm running 20psi and over 300hp in the hot humid south I definitely will start them.

I've been reading and searching and I know I still have a lot to learn but I'd like to get something started with the great ppl on this forum I have a 2006 VW GTI with the FSI 2.0T engine. I've been running M1 0-W40 since I purchased it around 10k miles with 5k OCI. I've been modifying it over...