In looking for a suitable towing turbo for my 92, I ran into differing nomenclature for exhaust housings. I'm use to Holsets use of "cm"'s and have a good idea on sizing, but how does aspect ratio translate? I'm currently running an H1C with a non waste-gated 16cm and a GDS 60mm turbine side. Not enough air to clean up enough my 7X.010 injectors. Not looking for turbo recommendations, just a comparison between cm and ar.
Thanks