MOBS
The Mad Scientist
Not sure I quite understand that statement. Please clarify for me-
Sorry, I was incorrect with the percentage, it's 160%
The heads on the 88-95 engines don't flow for squat in stock configuration, so with that in mind, your primaries don't need to be really big. 160% volume of the exhaust runners, I guess that should be clarified: In short, if you have a 1"-squared exhaust port, the port of the primary should be 160% of that, which is a 1.6"-squared opening. So that would be between a 1.4"-1.5" tube, 1.4" tube has an area of 1.54 sq in and 1.5" tube has an area of 1.77 sq in. The volume I mentioned wasn't exactly needed, I was using "volume" to express airflow, but if ya wanted to really measure it, you'd be measuring the volume of the last 1" of exhaust runner and first 1" of exhaust primary. Sorry if I can't make this any more simple, I'm not the best at explaining mathematical measurements; I would fail as a teacher, lol.