Intro to a port job
Last exh on that head w/pipe
.2..108.2
.3..150.5
.4..176
.5..194
.6..202
The other head exh #'s
.2..113....112....112....114
.3..154....150....153....150.2
.4..180....174....180....175.4
.5..190....187....190....186.5
.6..201....194....197....197
Core shift is in the numbers, interesting.
When the blower motor heats up, the numbers drop a little. If you let it cool...I think the lower numbers would be about the same.
The last intake numbers were tested using about an ugly 1/2" clay radius. I sprung for some new clay and made a nice 1" uniform clay radius and the party got bigger.
....Overall avg with actual 1 inch clay radius @28" w/ 4" bore adapter
......Int/exh
.1..65.2......
.2..130..110
.3..192..152
.4..244..178
.5..268..190
.53..269 194
.6..267..200
Knocking on 270cfm ...these are just some smogger heads off a 70's van. Gotta love mopar.
Last exh on that head w/pipe
.2..108.2
.3..150.5
.4..176
.5..194
.6..202
The other head exh #'s
.2..113....112....112....114
.3..154....150....153....150.2
.4..180....174....180....175.4
.5..190....187....190....186.5
.6..201....194....197....197
Core shift is in the numbers, interesting.
When the blower motor heats up, the numbers drop a little. If you let it cool...I think the lower numbers would be about the same.
The last intake numbers were tested using about an ugly 1/2" clay radius. I sprung for some new clay and made a nice 1" uniform clay radius and the party got bigger.
....Overall avg with actual 1 inch clay radius @28" w/ 4" bore adapter
......Int/exh
.1..65.2......
.2..130..110
.3..192..152
.4..244..178
.5..268..190
.53..269 194
.6..267..200
Knocking on 270cfm ...these are just some smogger heads off a 70's van. Gotta love mopar.