I was wondering what the differences are between the H1c from both IC and non IC, I’ve been putting together parts to install a 7.3 PS IC on my truck(1990) and a Amsoil 4510 with 4” tubing CAI, but then I read the non IC air intake is only 3” as opposed to 4” on the IC trucks, is this true?
So far the differences I have found:
IC(big H1c?): 8 blade, 54mm compressor wheel
NON IC: 7 blade, 50mm compressor wheel
I was thinking about upgrading my compressor wheel to the 60mm, but the site I found a kit on lists that is is only compatible with Factory IC trucks: https://gillettdiesel.com/shop/Holset-H ... 60mm-CH-05
I plan on upgrading to a 62sxe at some point when i feel like dropping the money on a upgraded clutch, head studs, 4” exhaust and some honed marine 370s from THD so figured I’d future proof my intake and intercooler.
Thanks in advance
EDIT: Found in a post on a different forum regarding the differences:
H1C non IC - 50 mm inducer(small side) 83 mm exducer(large side) on the compressor, 70 mm inducer (big side) 60 mm exducer (small side) on the turbine 18 cm housing
H1C IC - 56 mm inducer, 83 mm exducer on the compressor, 70 mm inducer, 60 mm exducer on turbine 21 cm housing
WH1C - same as IC H1C, with a 12 cm wastegated housing
94-98 HX35 - 54 mm inducer, 83 mm exducer on the compressor, 70mm inducer, 60 mm exducer on turbine
98.5-02 HX35 - 7 blade 54 mm inducer, 78 mm exducer on compressor, 70 mm inducer, 60 mm exducer on turbine