:We are also working with Garrett on procuring medium frame GTX turbos for Z32 testing. From what I've seen of the GTX maps on their website, the surge line is WORSE, i.e. it moves to the right compared to their standard lineup. People have had surge problems with the 3071 as it is. The GTX wheel in this application will only make it worse. Borg Warner's map's are getting WIDER, which means you could fit a bigger turbo on our VG30DETT without surge issues that would occur on a Garrett. Now a GTX2860RS might be interesting, but the bottom line is the rest of their tech is outdated, particularly if the BW stuff lives up to the hype.
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