gonna make some headers, need some advise
Thread Starter
Staging Lane
Joined: Sep 2010
Posts: 83
Likes: 0
From: Santa Cruz
gonna make some headers, need some advise I noticed some headers have a taper just behind the flange. anyone shed some insight to this?
I'm looking for an ideal tubing size for 400-600 hp range.
Here's what I'm thinking - no taper, 1.75 o.d. x .095, 4-2-1 design
its for an offroad race truck but would likely work for some street setups.
Looking for a design to pull maximum midrange torque with decent top end, but no higher than 7k.
I'm looking for an ideal tubing size for 400-600 hp range.
Here's what I'm thinking - no taper, 1.75 o.d. x .095, 4-2-1 design
its for an offroad race truck but would likely work for some street setups.
Looking for a design to pull maximum midrange torque with decent top end, but no higher than 7k.
Last edited by inde-fab; Apr 3, 2011 at 12:03 AM.
TECH Apprentice
Joined: Jul 2004
Posts: 374
Likes: 1
the taper is there because the exhaust coming out of the chamber has a ton of energy and velocity, but as it leaves the head it looses energy quickly and needs a larger cross section not to restrict flow... what that is depends on the amount of power you're actually making.
Something like what you're describing isn't likely to need anything like that
Something like what you're describing isn't likely to need anything like that
Thread Starter
Staging Lane
Joined: Sep 2010
Posts: 83
Likes: 0
From: Santa Cruz
the taper is there because the exhaust coming out of the chamber has a ton of energy and velocity, but as it leaves the head it looses energy quickly and needs a larger cross section not to restrict flow... what that is depends on the amount of power you're actually making.
Something like what you're describing isn't likely to need anything like that
Something like what you're describing isn't likely to need anything like that
Here's the layout so far
4-2-1
3/8" flange
1.75" - 2" - 3" collector,
just wondering if 3" collector is overkill, or if the 2" tubes should be slightly larger.
