??Head pipe??
Thread Starter
|
Senior User
Joined: Apr 2005
Posts: 102
Likes: 0
??Head pipe??
'96 f-150 Inline 6.
I've been told to buy a Walker headpipe but no ones told me the difference between said pipe and the factory 1. This is a part I'll manufacture so I only need to know the difference.
side note: Need advice on building headers.
I've been told to buy a Walker headpipe but no ones told me the difference between said pipe and the factory 1. This is a part I'll manufacture so I only need to know the difference.
side note: Need advice on building headers.
Laughing Gas
Joined: Jul 1999
Posts: 1,048
Likes: 22
From: Lacey, WA
Hi,
I have never heard of the Walker pipe..?
As for making your own headers here are a few tips I have read about. You want to make sure each pipe is of equal length from the head port to the collector. Due to the design of an inline engine this can be a problem as the first and last exhaust ports are pretty far apart(compared to a "V" designed engine.)
One work around for this problem is to make 2 three pipe headers. One for the first 3 cylinders and one for the last three. Then you can either "Y" the pipes together at the 2 collectors or just run true duels.
Good luck with your project.
Lee
I have never heard of the Walker pipe..?
As for making your own headers here are a few tips I have read about. You want to make sure each pipe is of equal length from the head port to the collector. Due to the design of an inline engine this can be a problem as the first and last exhaust ports are pretty far apart(compared to a "V" designed engine.)
One work around for this problem is to make 2 three pipe headers. One for the first 3 cylinders and one for the last three. Then you can either "Y" the pipes together at the 2 collectors or just run true duels.
Good luck with your project.
Lee
Posting Guru
Joined: Jun 2002
Posts: 1,214
Likes: 0
From: Rio Rancho USA
Equal length is a concern in some designs, but not knowing the exact length is the problem. If the lengths are not right, the pulses are not timed right and cylinder scavenging will suffer. There is a lot of math and research to be done to get everything right.
IMO, look at some different header designs and try to copy them as close as possible. Dont worry too much about having all the primeries equal length. Look at it this way- Tri Y and 4-1 headers make gobs of power, but none of the primeries are even close to being the same. Not to mention on a lot of engines, equal length headers make no real difference compared to other designs on a dyno.
I agree with making 2 3 pipe headers, though. Not only will welding around the collectors be easier having 3 pipes instead of 6, but you can have true duals as well. I-6s with true duals sound good, and sound like nothing else on the road.
IMO, look at some different header designs and try to copy them as close as possible. Dont worry too much about having all the primeries equal length. Look at it this way- Tri Y and 4-1 headers make gobs of power, but none of the primeries are even close to being the same. Not to mention on a lot of engines, equal length headers make no real difference compared to other designs on a dyno.
I agree with making 2 3 pipe headers, though. Not only will welding around the collectors be easier having 3 pipes instead of 6, but you can have true duals as well. I-6s with true duals sound good, and sound like nothing else on the road.
