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Big tube H2B drag header

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Old Apr 12, 2011 | 06:23 AM
  #1  
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Default Big tube H2B drag header

alot of you already saw the pics from this past weekends IFO race and have been filling up my pm box lol so i figured id post some pics w/ some info...






2" diam primaries, 20.5" length, extended convergent angle collector

this header is badass but is a pita when it comes time to dial in the camgears on the dyno. i must have burned my hands over a dozen times haha. think im gonna make a new one to exit somewhere else where it is out of the way
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Old Apr 12, 2011 | 06:30 AM
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Default Re: Big tube H2B drag header

That's a bad*** header, can't wait to see your car dialed in, are you going to honda day Sunday?
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Old Apr 12, 2011 | 06:32 AM
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Default Re: Big tube H2B drag header

Originally Posted by H2BJON
That's a bad*** header, can't wait to see your car dialed in, are you going to honda day Sunday?
i hurt the motor on sunday so i wont be racing for a while
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Old Apr 12, 2011 | 06:54 AM
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Default Re: Big tube H2B drag header

Sick header Randy! It does look like a bitch to work around.
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Old Apr 12, 2011 | 06:55 AM
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Default Re: Big tube H2B drag header

how much are you selling the header for? and will you be coming to honda day at all then ? and what happened to the motor ?
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Old Apr 12, 2011 | 06:57 AM
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Default Re: Big tube H2B drag header

Originally Posted by NAH2B
i hurt the motor on sunday so i wont be racing for a while
PM me, if there is anything I can do to help get you back on the track.
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Old Apr 12, 2011 | 07:08 AM
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Default Re: Big tube H2B drag header

Thanks Scott, i appreciate it.

im not gonna make honda day. i hurt the motor in the semi final on sunday. either spun a bearing or cracked the oil pump, not sure yet.
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Old Apr 12, 2011 | 08:01 AM
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Default Re: Big tube H2B drag header

Just means it's time to go bigger
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Old Apr 12, 2011 | 08:28 AM
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Default Re: Big tube H2B drag header

damn sucks to hear that Randy
hope you can get something put together soon

header looks good
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Old Apr 12, 2011 | 08:54 AM
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Default Re: Big tube H2B drag header

Randy sorry about the hurt motor, but that header looks absolutely awesome!

If you need any helps sourcing stuff let me know.
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Old Apr 12, 2011 | 09:04 AM
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Default Re: Big tube H2B drag header

Originally Posted by NAH2B
2" diam primaries, 20.5" length, extended convergent angle collector

That sounds somewhat familiar. Lol

For my exit, I ran the primaries under the oil pan. It worked pretty well on a b-series, I'm not sure about the distance from the head flange to the bottom of the oil pan on a H-series.


Hurry up and get that motor back together.
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Old Apr 12, 2011 | 10:07 AM
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Default Re: Big tube H2B drag header

Originally Posted by mar778c
That sounds somewhat familiar. Lol

For my exit, I ran the primaries under the oil pan. It worked pretty well on a b-series, I'm not sure about the distance from the head flange to the bottom of the oil pan on a H-series.


Hurry up and get that motor back together.
shortest under the pan on an H is 23"
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Old Apr 12, 2011 | 10:43 AM
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Default Re: Big tube H2B drag header

awesome header it looks sweet goin down the track
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Old Apr 12, 2011 | 10:50 AM
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Default Re: Big tube H2B drag header

Originally Posted by NAH2B
shortest under the pan on an H is 23"
You could do a custom special custom angled entry collector but you will need the special passwrd.
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Old Apr 12, 2011 | 02:48 PM
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Default Re: Big tube H2B drag header

So how much did you gain against your old design? if you don't mind sharing.. looks amazing
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Old Apr 12, 2011 | 03:57 PM
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Default Re: Big tube H2B drag header

Originally Posted by coryb13ser
So how much did you gain against your old design? if you don't mind sharing.. looks amazing
i changed several things from last season and while i did ALOT of dyno testing i did NOT have my old header to test it against so i cant say exactly how much i gained from the header alone.
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Old Apr 12, 2011 | 08:27 PM
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Default Re: Big tube H2B drag header

header looks badass ...so what arent you making nowadays?
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Old Apr 13, 2011 | 04:42 AM
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Default Re: Big tube H2B drag header

enough power to run w/ the 2.7L K's
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Old Apr 13, 2011 | 04:47 AM
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Default Re: Big tube H2B drag header

i need a miniature version of this
lol
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Old Apr 13, 2011 | 08:56 AM
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Default Re: Big tube H2B drag header

sorry to hear about the head ache.

where were you expecting peak tq? 20.5" would put the peak quite high by my calcs but i know there are other factors.
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Old Apr 13, 2011 | 09:04 AM
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Default Re: Big tube H2B drag header

Originally Posted by unusual71
sorry to hear about the head ache.

where were you expecting peak tq? 20.5" would put the peak quite high by my calcs but i know there are other factors.


it didnt peak anywhere near as high as one may think
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Old Apr 13, 2011 | 09:07 AM
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Default Re: Big tube H2B drag header

Sorry about the motor. The header looks amazing though! Out of curiosity was this motor a 95mm or a 97mm setup?
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Old Apr 13, 2011 | 09:21 AM
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Default Re: Big tube H2B drag header

100 mm......
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Old Apr 13, 2011 | 06:55 PM
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Default Re: Big tube H2B drag header

badass randy sorry to hear about the motor. hope to see you a few times this year.
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Old Apr 14, 2011 | 06:51 AM
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Default Re: Big tube H2B drag header

That **** was so funny when he was designing this header. I was just sitting there watching him go back and forth about where to put it.

He made up his mind in like 3 minutes. "yea lets make it go this way" hahahaha
And it worked lol.

You the man Randy
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