they are almost done.. i got some hayabusa 1300 itbs. they are 51mm and taper to 46mm and are larger than the gsxr 1000's and 750's
i got lucky and was talking to a guy who races vw bugs and he has a fab shop and does carbs n **** and had an old stack design he used to make. and only had 4 left and doesnt make them anymore.. and they fit perfect. slip right on like they were ment to. and they look dope and are perfect size.



and my flange is getting the runner welded onto it today so i should have pics tomm


and to all the people who just chop the manifold and use clamps to hold it on to the itb.. i dontknow how you make power cause the oval shape of the manifold to the round itb is a major difference and the airflow would be ****.
so to anyone lookign to make them, spend a few more bucks and get a real flange with runners that transition from the oval to the round.


update.. got the runners welded today. pretty clean job. i found a really close pipe inner diameter with a thick wall thickness.
there is a VERY SLIGHT lip where the runner meets the flange that i need to port match and also port match it to the head. the weld is pretty clean but there a tiny bit on the inside.. so im going to slightly bore the runner out to match the flange port. and chop the runners to about 3 inches long.. im also going to machine the inside shape of the runners to where they meet the itb and contour it to be a smooth transistion where the injector sticks out. so it has the smoothest best airflow path. should be completed tonight after i get off work.









Modified by drunknbass at 10:08 PM 11/23/2004

 

Nice ITBs. Got the big boys on there

-Aaron

 

diy itbs...sounds scarry

 

subscribed for a sound clip

 

yea not too big. they look bigger in pics than they really are.
but its hard enough finding stacks to fit, let alone anodized ones.. plus these are quality.

 

what are you gonna tune with and are you gonna be using this as a daily driver...DIY gets a big

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NR_hatch &raquo;</TD></TR><TR><TD CLASS="quote">what are you gonna tune with and are you gonna be using this as a daily driver...DIY gets a big </TD></TR></TABLE>
im going to use crome most likely..
and find someone local to tune it.
maybe dr. charles

 

daily driver? i'm contemplating on twm's for my h22 na

 

yea its for my daily driver rhd eg6 but i dont drive very much im at work all day and i drive about 1/2 mile home. so prob a weekend car more than anything

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by drunknbass &raquo;</TD></TR><TR><TD CLASS="quote">yea its for my daily driver rhd eg6 but i dont drive very much im at work all day and i drive about 1/2 mile home. so prob a weekend car more than anything</TD></TR></TABLE>
oh sure rub it in... why dont you just make it blink and type it in bright colors.

jp. this egg wouldnt happen to be black would it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by drunknbass &raquo;</TD></TR><TR><TD CLASS="quote">
and to all the people who just chop the manifold and use clamps to hold it on to the itb.. i dontknow how you make power cause the oval shape of the manifold to the round itb is a major difference and the airflow would be ****.
so to anyone lookign to make them, spend a few more bucks and get a real flange with runners that transition from the oval to the round.


</TD></TR></TABLE>


You mean this is not how you would do it?



Pics taken from this link: https://honda-tech.com/zerothread?id=975931

The transition looks pretty good to me?




Just trying to understand how you are going to progress on your project...not trying to challenge anybody's methods.....

Best of luck!

 

i just want to see the progress...

 

no thats good cause they welded runners onto the flange.. alot of people just chop the flange runners long enough to hose clamp the itbs onto it. but then the runners taper in toward themiddle and they are also oval where they meet the round tb. so the airflow is like this
&lt;O&gt;
thats a shitty example but you see how the 2 shapes dont line up right

 

those stacks looks sweet, i don't know how you are going to get filters on them cause they sit too close to each other. what's your engine displacement? there is such a thing as too large of an itb.

 

2.0 b20 vtec 84mm pr3 head... milled head..somewhere around 12:1 cr or a little higher. stage 3 port n polish skunk 2 stage 2 cam (obx) cp hollow dome pistons, eagle rods. profab smsp style header to a 2.5 inch titainium exhaust
still need to get the valve springs to finish assembly. prob going to get some rocket springs. block has itr pumps and acl bearings. and aprofab block guard. i think the size of the itbs are going to be perfect for my displacement/cams/compression

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM alphanumeric &raquo;</TD></TR><TR><TD CLASS="quote">diy itbs...sounds scarry</TD></TR></TABLE>i second that, but to people who can master the art like this cool kat

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ken-E &raquo;</TD></TR><TR><TD CLASS="quote">i second that, but to people who can master the art like this cool kat</TD></TR></TABLE>
back at ya eg6 crew

 

DIY ITB'S get a big *** from me

 

sounds like you got a very good setup. those itbs will definitly help you make some power.

 

I dont think its possible to just chop the IM and clamp those on. If you cut the IM at the point where the runners line up with the ITBs then you dont even havew enough manifold left to clamp on to. MOST people get the pipes welded on.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mentat Ghola &raquo;</TD></TR><TR><TD CLASS="quote">I dont think its possible to just chop the IM and clamp those on. If you cut the IM at the point where the runners line up with the ITBs then you dont even havew enough manifold left to clamp on to. MOST people get the pipes welded on. </TD></TR></TABLE>
yes most people do them like this

not only does the runner taper in, the shape difference from the oval port on the head to the round tb is major.

 

ughh....thats hideous!!!!!! I paid 100 bux to get mine choped and to have the pipes welded on, and that was WITH hookups. Its linda labor intensive i guess cause you have to hammer the pipe in on the IM side, the lowest estimate i got from machine shops was like 250 so i can see WHY people would do it like that but that is seriously ugly!!!

 

i cut the flange myself. first used a cutting wheel to get the major parts out, then a simple hand saw was used then filed smooth. and the runners cost me 8$ for the tubing. and 40$ for the welding cutting smashing to oval etc. the stacks cost me the most but its ok cause they look doppppe

 

nice setup! those are some BIG TB's!!!

 

looks like everything is coming out very nice, just need to port that runner to match the flange from the inside, then cut them and you'll be in there like swim wear
also wondering what kind of filter your gonna use with those big stacks