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




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
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.
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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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"
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.
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
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







sorry to hear about the motor. hope to see you a few times this year.