View Poll Results: Which cat should I use? I have an AP2 with AP1 Comptech header/exhaust.
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What is the width of the Comptech Exhaust/Header?
09-26-2011, 08:37 AM
#21
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Originally Posted by eklipz98' timestamp='1317009615' post='21005678
[quote name='05APdeuce' timestamp='1317009449' post='21005670']
The comptech header and exhaust is 63 mm
The comptech header and exhaust is 63 mm
Based on what I've heard, the 3" Asura is likely "too large" (3" = 76.2mm).
If I can return the Asura, I'm going to go for the Berk 63.5mm!
Here is tha article on the exhaust Stating that it is 63mm http://www.importtuner.com/powerpage...000/index.html
Here is the "official Header Thread where they show that the Comptech Header collecter is 63mm.
https://www.s2ki.com/s2000/topic/634...header-thread/
[/quote]
This is golden information. Thank you so much. I really appreciate it!
This morning, I also got confirmation from CT Engineering:
The inlet on our exhaust is 2.5" (63.5mm). I would recommend using a cat with as close to the same size as possible so you don't have a restriction.
09-26-2011, 09:10 AM
#22
Former Moderator
Here's the info from gernby about pipe sizing.
https://www.s2ki.com/s2000/topic/839...gernby+exhaust
https://www.s2ki.com/s2000/topic/839...gernby+exhaust
09-26-2011, 12:32 PM
#23
Piping should always be in equal or ascending order (all numbers are in mm's):
63 -> 63 -> 63
63 -> 63 -> 70
63 -> 70 -> 70
63 -> 70 -> 75/76
63 -> 75/76 -> 75/76
Shouldn't be done any other way
63 -> 63 -> 63
63 -> 63 -> 70
63 -> 70 -> 70
63 -> 70 -> 75/76
63 -> 75/76 -> 75/76
Shouldn't be done any other way
09-27-2011, 06:39 AM
#26
What piping is the comptech? 70mm? Get whatever matches the comptech (before the split). All the scavenging is done at the collector so you want the largest piping after that.
09-27-2011, 08:13 AM
#27
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Here is tha article on the exhaust Stating that it is 63mm
http://www.importtuner.com/powerpage...000/index.html
Here is the "official Header Thread where they show that the Comptech Header collecter is 63mm. https://www.s2ki.com/s2000/topic/634...header-thread/
http://www.importtuner.com/powerpage...000/index.html
Here is the "official Header Thread where they show that the Comptech Header collecter is 63mm. https://www.s2ki.com/s2000/topic/634...header-thread/
