Header Primary Tube Diameter
- Thread starter Lue
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what engine, how much power, usage...?
basically you want a tube that's just large enough. too large kills velocity, which kills scavenging, which robs power. of course, unless it's a pure race engine, you probably won't notice.
basically you want a tube that's just large enough. too large kills velocity, which kills scavenging, which robs power. of course, unless it's a pure race engine, you probably won't notice.
I agree. Unless you're spinning the motor past 4k on a regular basis there probably won't be a huge difference, but at the very least any set of headers over regular manifolds helps.
Doober said:
It's a 350H.O Crtare 330hp/380 lb.-ft, and it's a daily. I have a set of flowtech's with 1 5/8 Primary Tube Diameter now, but can get a pair of headmans with 1 1/2 Tube Diameter for a really good prcice. I dont need to replace them, but just looking for extra hp :wink:
Thanx guys for the help!!
Yeah, the 1 5/8s are probably better for what you have anywho, since it's not just a stock motor.
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