ANYONE INSTALLED BERK HEADER YET?
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Joined: Jun 2006
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From: Lexington, Ky
Originally Posted by Mugen_EP,Oct 13 2007, 05:45 AM
I picked up a J's header and dyno'd before and after....my graphs were IDENTICAL. No HP gain, no TQ gain. I can post my dyno sheet if needed but I was VERY surprised/shocked. Spent $1200 for a 14lb weight reduction and visual points....
-Tony
-Tony
Joined: Jan 2007
Posts: 2,368
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From: Montana
I ordered my berk header/high-flow cat yesterday, but I won't have before/after dyno results 
When the snow clears in the spring, I can get you guys before/after trap speeds though, which will be better than a dyno anyway.
Does anyone have real results on this header, of any kind? I bought it to drop weight, and because I plan to go with a SC setup next season.
When the snow clears in the spring, I can get you guys before/after trap speeds though, which will be better than a dyno anyway. Does anyone have real results on this header, of any kind? I bought it to drop weight, and because I plan to go with a SC setup next season.
Joined: Nov 2006
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In my mind the least controversial way to evaluate a header, in the mid-range at a minimum, is to test how low you can take VTEC. With the Berk it is 5000 RPMs (two tuners I used came to the exact same conclusion), the OEM is 5600 (tested by two highly competent tuners as well), the Toda and Mugen are about 4500-4600, the Js is 4100-4200 and the Hytech is under 3800. These numbers are with a 70mm exhaust or dual equivalent.
For the upper mid-range to top end you can look at a slightly more obscure tuning tool which are adjustable cam gears. The Berk made more power for me with retarded cam gear timing (less valve overlap), which means the Berk was more restrictive upper midrange to top-end than the OEM. With Js, Mugen, Hytech or Toda you can run more overlap which means advanced cam gear timing and make more power.
Finally, for my setup, two separate tuners have said, based solely on the peak HP figure, that with the Berk header they felt my car was making 5-10 HP *less* than it should. But honestly forget about this piece of the puzzle and focus on the other two areas of proof I provided because they are a lot more direct evidence of the Berks capabilities than peak HP figures that vary so much from car to car and dyno machine to dyno machine.
For the upper mid-range to top end you can look at a slightly more obscure tuning tool which are adjustable cam gears. The Berk made more power for me with retarded cam gear timing (less valve overlap), which means the Berk was more restrictive upper midrange to top-end than the OEM. With Js, Mugen, Hytech or Toda you can run more overlap which means advanced cam gear timing and make more power.
Finally, for my setup, two separate tuners have said, based solely on the peak HP figure, that with the Berk header they felt my car was making 5-10 HP *less* than it should. But honestly forget about this piece of the puzzle and focus on the other two areas of proof I provided because they are a lot more direct evidence of the Berks capabilities than peak HP figures that vary so much from car to car and dyno machine to dyno machine.
Joined: Mar 2007
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From: chino hills
Originally Posted by carrera4,Dec 4 2007, 09:39 PM
In my mind the least controversial way to evaluate a header, in the mid-range at a minimum, is to test how low you can take VTEC. With the Berk it is 5000 RPMs (two tuners I used came to the exact same conclusion), the OEM is 5600 (tested by two highly competent tuners as well), the Toda and Mugen are about 4500-4600, the Js is 4100-4200 and the Hytech is under 3800. These numbers are with a 70mm exhaust or dual equivalent.
For the upper mid-range to top end you can look at a slightly more obscure tuning tool which are adjustable cam gears. The Berk made more power for me with retarded cam gear timing (less valve overlap), which means the Berk was more restrictive upper midrange to top-end than the OEM. With Js, Mugen, Hytech or Toda you can run more overlap which means advanced cam gear timing and make more power.
Finally, for my setup, two separate tuners have said, based solely on the peak HP figure, that with the Berk header they felt my car was making 5-10 HP *less* than it should. But honestly forget about this piece of the puzzle and focus on the other two areas of proof I provided because they are a lot more direct evidence of the Berks capabilities than peak HP figures that vary so much from car to car and dyno machine to dyno machine.
For the upper mid-range to top end you can look at a slightly more obscure tuning tool which are adjustable cam gears. The Berk made more power for me with retarded cam gear timing (less valve overlap), which means the Berk was more restrictive upper midrange to top-end than the OEM. With Js, Mugen, Hytech or Toda you can run more overlap which means advanced cam gear timing and make more power.
Finally, for my setup, two separate tuners have said, based solely on the peak HP figure, that with the Berk header they felt my car was making 5-10 HP *less* than it should. But honestly forget about this piece of the puzzle and focus on the other two areas of proof I provided because they are a lot more direct evidence of the Berks capabilities than peak HP figures that vary so much from car to car and dyno machine to dyno machine.
installed it does feel stronger midrange and alittle weaker after 8600 but i have I,TP,E, NEO im getting it tuned this weekend so ill post my numbers
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From: Lexington, Ky
Originally Posted by ShocK,Dec 3 2007, 11:47 PM
But what headerback did you have?
Joined: Sep 2005
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From: Aliso Viejo
Originally Posted by superfly092886,Dec 4 2007, 11:06 PM
installed it does feel stronger midrange and alittle weaker after 8600 but i have I,TP,E, NEO im getting it tuned this weekend so ill post my numbersI'm curious to know how it felt after the tuning. I have an emanage ultimate getting tuned next week and i'm up in the air right now about installing a berk header or not before then.
if you can get stronger gains with a tune out of the header it could be worth it...but it could all be speculation too.
let us know how it goes with header and tune.
Joined: Mar 2007
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From: chino hills
https://www.s2ki.com/forums/index.ph...f=165&t=547477
not sure if header helped or not my vtec engages at 4900 so it had to do something
not sure if header helped or not my vtec engages at 4900 so it had to do something
