Can 1 3/4 headers handle 400HP?

[JohnJL]

Any opinions on whether our host's 1.75" headers will effectively handle 400 supercharged hp coming out of SC heads?


thanks

[Tooth911]

950 hp will run out 1.75 headers but why would you do that? you would benefit greatly with custom made headers that are dyno tested for your setup Cheers Chuck

[JohnJL]

Hi Chuck,

I am admittedly no expert on boosted engines or exhausts either. This is my first boosted project. I am asking the question because a highly-respected shop here known for their distain of others' work took a look at my bursch headers into the 2-in 2-out flowmaster on my 3.0 track setup and said "that's exactly what we'd do." So I am thinking about the big bursch headers into the same or Ben's "Stingers" on this project but seeking broader input. Corky Bell's book plainly and directly says on a supercharged engine the "scavenging" benefits helpful on NA engines isn't important on these engines. He says just get backpressure as low as possible, that equal-length headers etc aren't worthwhile.

Any suggestions how a custom system might differ from a bursch-into-stinger or bursch-into-flowmaster setup for a supercharged 3.2?

thanks Chuck and others

john