Official Aftermarket Header Discussion
12-13-2006, 04:29 PM
#41
Former Moderator
Nate...below is a good write up on a build up of an ap1. Shows the toda compared to stock. Note this is on a Mustang dyno, which reads much lower than a DynoJet or DynoPack. Need to look at the gains, not the numbers.
http://www.p1auto.com/jack/s2k/s2kexhaust.htm
At the time this was done, these were awsome gains. Before the J's header and 70mm T1R. My car was built to this spec other than a VAFC instead of an EMS...they were the best mods at the time.
http://www.p1auto.com/jack/s2k/s2kexhaust.htm
At the time this was done, these were awsome gains. Before the J's header and 70mm T1R. My car was built to this spec other than a VAFC instead of an EMS...they were the best mods at the time.
12-13-2006, 04:42 PM
#42
Originally Posted by ebeldesign,Dec 13 2006, 07:22 AM
Jethot is a metallic ceramic coating applied to both inside and outside of the header. The company claims performance advantages, but I am having it done primarily for the underhood heat reduction it offers. Especially since the TracySports header does not have a provision for a heatshield.
www.jet-hot.com
www.jet-hot.com
12-13-2006, 04:46 PM
#43
Registered User
Thread Starter
Originally Posted by negcamber,Dec 13 2006, 08:29 PM
Nate...below is a good write up on a build up of an ap1. Shows the toda compared to stock. Note this is on a Mustang dyno, which reads much lower than a DynoJet or DynoPack. Need to look at the gains, not the numbers.
http://www.p1auto.com/jack/s2k/s2kexhaust.htm
At the time this was done, these were awsome gains. Before the J's header and 70mm T1R. My car was built to this spec other than a VAFC instead of an EMS...they were the best mods at the time.
http://www.p1auto.com/jack/s2k/s2kexhaust.htm
At the time this was done, these were awsome gains. Before the J's header and 70mm T1R. My car was built to this spec other than a VAFC instead of an EMS...they were the best mods at the time.
12-13-2006, 08:10 PM
#44
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Originally Posted by wildcardtrd,Dec 13 2006, 05:00 PM
^^^ how do you like your 70mm sparrow? That's the exhaust I want to get.
plus, can't beat the price right now, if anyone is interested, the groupbuy is ending soon, need 3 more people for group buy for draw to be complete. and if people don't know about the draw, they are doing it on xmas day worth $2000 CAD, so pretty good deal
12-13-2006, 09:37 PM
#46
Does anybody know the dimensions of the J's SPL header? From what I've gathered, Berk is the only other header out there that has 50mm primaries along with the J's. Everyone else is in the 45mm range. IIRC, Berk and J's header have identical collector numbers as well, 65mm I believe? If anything, I think their dyno numbers should be pretty similar, although I don't know if they were able to extract a 14 hp+ gain in the midrange as did the J's. 
I think Berk's header will definitely be one of the top headers on that list without the JDM pricetag. There are a few threads in UTH with dyno plots, and I've seen nothing but gains all across the board.
I think Berk's header will definitely be one of the top headers on that list without the JDM pricetag. There are a few threads in UTH with dyno plots, and I've seen nothing but gains all across the board.
12-13-2006, 09:46 PM
#48
Ok I found some in you might want to add to your post, Wildcard. Great thread btw.
Tracy Sports Header
4-2-1 design
Primary=45mm
Secondary=51mm
Collector=60mm
J's SPL
Berk Technology Header
A true 50mm primary header with a true 63.5mm exit
True SUS304 stainless steel, flanges & tubing
True 1.6mm thick wall tubing
Silicon bronze welding rod at the flanges for ultimate fatigue resistance
Secondary wide band port for EMS tuning (plug included)
11.5lbs total weight
Some other primaries with various other headers:
HKS 4-1 Racing Header (JDM) 45mm
Fujitsubo 45mm
DC Sports 45mm
Spoon 45mm
Mugen 45mm
Toda 45mm
RSR 45mm
J's Racing 50mm
Berk Technology 50mm
Tracy Sports Header
4-2-1 design
Primary=45mm
Secondary=51mm
Collector=60mm
J's SPL
Berk Technology Header
A true 50mm primary header with a true 63.5mm exit
True SUS304 stainless steel, flanges & tubing
True 1.6mm thick wall tubing
Silicon bronze welding rod at the flanges for ultimate fatigue resistance
Secondary wide band port for EMS tuning (plug included)
11.5lbs total weight
Some other primaries with various other headers:
HKS 4-1 Racing Header (JDM) 45mm
Fujitsubo 45mm
DC Sports 45mm
Spoon 45mm
Mugen 45mm
Toda 45mm
RSR 45mm
J's Racing 50mm
Berk Technology 50mm
12-14-2006, 08:06 AM
#50
Registered User
Thread Starter
Updated, thanks zerospel and kenstyle! 
Guedo512, I added the defenition of the different types of headers to the 1st post. A TRI-Y header is the same as a 4-2-1 header. 4 pipes go into 2 pipes, that go into 1 output. These pipes make 3 "Y" shaped unions, thus the name.
Guedo512, I added the defenition of the different types of headers to the 1st post. A TRI-Y header is the same as a 4-2-1 header. 4 pipes go into 2 pipes, that go into 1 output. These pipes make 3 "Y" shaped unions, thus the name.