Quote:
Originally Posted by Zippy
Where to the GT28-71 turbos fit into this discussion? Whould they have similiar numbers to the K28/18g ?
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A couple trims available, here is one. GT2871R:
Inducer: 51.2mm
Exducer: 71mm
Trim: 52
Max flowrate @ 2.0 P/R: 644cfm
Max P/R: 3.1
Seems like it could perform similar to the K24/18G if you ran it in the larger Garrett housings and not stuffed into K16 housings as all of the the hybrids I have seen do. Some people on other platforms have found the GT28 turbine wheel to be a bit too restrictive to take advantage of the higher compressor flowrate without running much higher boost levels. I think if you wanted to try the 71mm wheel the GT3071 would be a better match on the P-car for better turbine flow (lower backpressure) instead of having to run higher boost levels to get the same power.
I like Vivid's kit since it allows you to run any of these Garrett GT turbos using their original housings which should outperform the same wheels stuff into the smaller K16 housings.
