WTB: X pipe w/cats
07-04-2012, 04:37 PM
#4
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Call Roger!
07-04-2012, 07:33 PM
#7
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I could use an education re. "x-pipes" and the removal of the catalytic converter. With my '87 I simply cut off the cat at both ends and fitted in two pipes with "muffler clamps". It certainly changed the sound but did not have a noticeable affect on performance. Then again, I'm an old coot and don't drive that fast anyway. Did I do anything wrong in terms of engine operation? And, what really is an "X" pipe?
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07-04-2012, 07:38 PM
#8
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Modern cats dont cost what they did 30yrs ago..but old rumors die hard.
You didnt harm the engine, just stinkin it up for everyone behind you.
Pipes...a beginner:
http://www.jegs.com/c/Exhaust-Header...11525/10002/-1
You didnt harm the engine, just stinkin it up for everyone behind you.
Pipes...a beginner:
http://www.jegs.com/c/Exhaust-Header...11525/10002/-1
07-04-2012, 07:43 PM
#9
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Bjbpe: Since you're an 'old coot'... you may remember "H-pipes" from the musclecar era. Same concept, just shaped like an 'X'. Joining the two exhaust pipes is said to even out the exhaust pulses and makes for smoother power gains.
Going further into the concept, the correct placement of the junction (tuned for the specific engine) will yield the greatest gains. Kind of like looking for the heat tempering line on header collectors for drag cars (cut off at that line) with open exhaust.
For our cars, swapping the factory cats for a couple of 100 or 200 cell stainless cats will keep the flow up and (hopefully) satisfy state inspection requirements...
Going further into the concept, the correct placement of the junction (tuned for the specific engine) will yield the greatest gains. Kind of like looking for the heat tempering line on header collectors for drag cars (cut off at that line) with open exhaust.
For our cars, swapping the factory cats for a couple of 100 or 200 cell stainless cats will keep the flow up and (hopefully) satisfy state inspection requirements...
07-05-2012, 01:16 AM
#12
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To speedtoys (again)
I ltry to maintain a friendly note in my responses but I gather that your "beginner" note was a put down so let me assure you that I have been playing with mechanical devices when you were still a sperm. B.S. Mechanical Engineering '61; BS Physics '61; MS Aerospace Engineering '64. PE '70.
If "speedtoys" means what I think it does, we don't need an additional reckless driver here in Wyoming. Stay in the "less-than-golden" state where all of those fancy EPA accessories are needed. Our principal air contamination is cow flatulance.
To others who read this; sorry if I am mis-behaving but put-downs are not needed here.
Barney
I ltry to maintain a friendly note in my responses but I gather that your "beginner" note was a put down so let me assure you that I have been playing with mechanical devices when you were still a sperm. B.S. Mechanical Engineering '61; BS Physics '61; MS Aerospace Engineering '64. PE '70.
If "speedtoys" means what I think it does, we don't need an additional reckless driver here in Wyoming. Stay in the "less-than-golden" state where all of those fancy EPA accessories are needed. Our principal air contamination is cow flatulance.
To others who read this; sorry if I am mis-behaving but put-downs are not needed here.
Barney
07-05-2012, 01:32 AM
#13
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beginner meaning, a starter page to see & understand. You asked what an X pipe was, and in the context of my reply..that URL is a place to start to see what they are/etc. In context.
Wasnt about you. I dunno who you are..but you asked, and that was a place to start to just see what they are, etc.
Wasnt about you. I dunno who you are..but you asked, and that was a place to start to just see what they are, etc.