hta76 and reds have 54.8mm inducer 76mm exducer 59lbs/min
gtx71 54.1/71 57lb
gtx76 58/76 64lb
gt35r 61.4/82 67lb
hta3582 59/82 67lb
hta3586 62/82 75lb
gtx35 62.4/82 76lb
if equal size 14 blades spools faster. (more paddles per shaft rev)
11 blade would heat air less at high pressure ratios, but good intercooler would likely mask any temp difference between the two designs. I prefer FPs design. dual 7 blade wheels. They are really sweet design and that why they use it in all FP turbos now.
hta82 spools about 250 rpm faster than standard 35r. hta86 spools about 250rpm slower than hta82. not enough data out to know where gtx wheels fall spool wise.
the 30r turbine is a fussy wheel. really bad results when in wrong turbine housings. when in good housings it works really well and will spool faster that 35r turbine. the whole gtx3576 is a better choice than gtx3076 is all based on a couple of really poor back to backs. one on evom of which there was a cat in place with 30 wheel. switch to 35 no cat. buschur made 600whp/600wtq (on his low reading dyno) with hta3076 in his forward facing setup with tial 82.