The big elephant in the room when it comes to this DTR turbo, it's got laaaag. While we can talk all day how we can or can not trust dyno numbers, dynos do a great job of showing the shape of an engine's power output while also showing the behavior of a specific turbo. APR claims from their website it makes peak torque around 4k rpm:
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Dyno graphs for the DTR are very elusive, but I've caught a few:
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Seriously, why are these so hard to find...
So far we can say with decent confidence the DTR does not make full boost until about 4400rpm from the evidence. Even with the stock DP I fail to see how it is acceptable that this custom designed dual BB turbo, built from the ground up in the crystal labs of APR, still manages to spool 600rpms slower than a Vortex XL. 400rpms slower than advertised.
Am I off the rocker here? Just look at the advert for this turbo, it sounds and looks like a slam dunk. This turbo lag would hit manual drivers the hardest as they wait for this literal snail to re-spool between shifts. For this reason they should probably place "For DSGs only" on the DTR page.
This kit would make a lot more sense with a much faster spooling IS38+ marketed to GTI owners as a stage 3 one stop shop solution, as this kit is already a hard sell for R owners anyways.
But the question is....is it possible APR could have built a turbo which delivers similar numbers as advertised, on the stock DP, and without all the lag?
EQT Proved to us, yes.....yes they could:
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I rest my case.