header
 

well the new header is ready for testing. I got it done the other day and I like the way it turned out.

here are some pics:

This is the new design that I made the other day.

Its p/s compatible, but NOT a/c and will NOT work with full size radiator. But is sure looks cool and it should make good power.

Again its a 4-1 but the ground cleareance is verry good. Its just about 1/4" lower than the oil pan.

http://memimage.cardomain.net/member...2_526_full.jpg

http://memimage.cardomain.net/member...2_527_full.jpg

http://memimage.cardomain.net/member...2_528_full.jpg

http://memimage.cardomain.net/member...2_529_full.jpg

http://memimage.cardomain.net/member...2_530_full.jpg

http://memimage.cardomain.net/member...2_531_full.jpg

http://memimage.cardomain.net/member...2_532_full.jpg

Re: header
 

Dang, I bet you have some serious man hrs into it. Looks pretty sweet, the only problem is I dont see a t4 flange on it :6

I assume this is for a customer car? You guys should try it out on Chris's sweet ride and see what it does compared to his header. :y

Re: header
 

I have two days of work into it. One day of cut and tack and the other welding it up.

Its actually for my wife's civic with a b18c1.

I wanted to try it on Chris's car, but at the moment its not working (time for rebuild after it got stolen and they ran 89 octane in it for who know's how long :(

Re: header
 

nice work, what kind of collector is that, looks nice

Re: header
 

that one is a Burn's Stainless collector, that I used to mock up this header. the collector im going to use is going to have a slight 45* bend at the end and then a 2.5" pipe under the oil pan.

Re: header
 

looks good steph. did you go 1.75" primaries and 1.875" secondaries? looks like it.

Re: header
 

Just what I was thinking ;)

Looks tits

Re: header
 

Damn...that is sexy. Ever consider making another one to sell? ;D If it makes some decent gains I'd like to talk to you about perhaps making another one for my all-motor slowness ls/vtec, if you'd want to that is. :l

Re: header
 

yes I did. and all the runners are equal lenght with in 1/8".

Re: header
 

hot. if only you could have popped in some anti reversion chambers!

Re: header
 

does that not create to much backpressure were the 4-1 comes into the small port... i see that it expsands back out... but its just looks kinda small... or is that better... i know running n/a you need some back pressure but that looks like a lil much... just curious

Re: header
 

Its steped from 1.75" to 1.88" so that acts like an anti reversion.

the collector size was taking in cosideration when it was made for the size of the engine and cam profile. So no it does not create too much backpressure. The whole idea behind the megaphone and reverse cone is to prevent overscavenging at cams overlap at low rpms.

Re: header
 

Are you ------- retarded? Just a yes or no answer.

On topic, that looks ------- great.

Re: header
 

that is by-far the best header i have ever seen in my life!!!! :o :o :o keep up the good work

Re: header
 

burns......doesnt get much better than that...we just used a burns collector on a nasty turbo kit for my friends audi

Re: header
 

they do have some verry nice stuff.

here are some new pics of the progress. I been sick so I didn't get a chance to do much.

http://memimage.cardomain.net/member...2_533_full.jpg

http://memimage.cardomain.net/member...2_534_full.jpg

http://memimage.cardomain.net/member...2_535_full.jpg

http://memimage.cardomain.net/member...2_536_full.jpg

Re: header
 

Sweet. I like it.

Re: header
 

very nice looks great I wanna see what numbers it makes

Re: header
 

im going to try to dyno one of my firends car this weekend. if the weather lets off a bit. its been snowing like crazy. ;D ;D ;D ;D

Re: header
 

Did you already dyno with this header or a diff one? Theirs a 200whp stock block GSR graph in your HT thead but wasnt sure if it was the same header

Re: header
 

i noticed the small amount of welds near the flange.....are you compensating for the heat thats being put into that by doing it that way........if not you should cause that flange will pull into an arch....you know what i mean....so make sure you do them in sequence.....and let them cool....you dont want that to warp that ---- would suck

Re: header
 

that was the first one I built for my wife's car. its just a classic 4-1, but equal lenght with a megaphone. That one was dynoed vs a 4-1 dc sports with a 2.5" collector.

the red graph is the Dc 4-1 tuned at a a/f ratio of 13.5:1
the blue graph is my 4-1 that was not tuned yet, just bolted on and changed the vtec point from 4600 to 6400 rpm's

http://www.advancedstreetperformance...s_right_si.jpg

http://www.advancedstreetperformance...no_headers.jpg

im not done welding. I always weld the runners to the flange while its bolted to the head, that way it won't warp the flange. It will also be welded inside and out at the flange.

Re: header
 

holy chit! Keep us updated you've inspired me to get my ass in gear, and learn how to tig haha

Re: header
 

ill keep you guys updated as soon as I get it dyno.

Re: header
 

Wow that looks great. :y You done much new to your car this winter?

Re: header
 

15whp at one point untuned over another aftermarket heater. That's nice. :)

Re: header
 

I repainted the engine bay and did a wire tuck. Im in the process of putting the motor togheter, allong with a new manifold and turbo. ;)