Turbochargers on Stock cars

[Greg Hogue]

Originally Posted by Buick6

If you look up the NHRA technical specs for that engine there should be additional specs for the turbo such as the compressor wheel size. No mention of other specs such as a number of fins, pitch, compressor housing A/R, etc.

that is the way I'm reading it, The inducer size stated is 1.70, and wheel at inducer break is 1.68. There is no other spec, The way I'm reading that is any turbo goes as long as the inducer is the spec size.
The one part I am not clear on is the 2 mm over. Is that 2 mm over the stated size or is that size with the 2 mm added.