ITB homemade
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Joined: Oct 2005
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From: Ocala, FL, usa
ITB homemade
I'm looking to do a homemade itb on my f22a1. As of right now I'm just collecting info. I post everything i find/do that is feathable info.
Here is my first guide that i found even though it is on a b-series engine.
Civic/Interga guys take notice....
http://www.homemadeturbo.com/tech_projects/itb/
Here is my first guide that i found even though it is on a b-series engine.
Civic/Interga guys take notice....
http://www.homemadeturbo.com/tech_projects/itb/
New User
Joined: Oct 2001
Posts: 3,189
Likes: 1
From: Bloomington, Indiana, USA
Re: ITB homemade (f22pwrdaccord)
yes, from what i've seen for homemade itb's, you will probably have to use a cut intake manifold and some motorcycle itb's...shouldn't be extremely hard, but challenging i suspect...good luck and let us know how it goes...(by the way, you will need to take into consideration all the vaccuum hookups on the intake manifold and a way to route them to either the itb's or a seperate vaccuum system...good luck...
Joined: Aug 2005
Posts: 78
Likes: 0
From: Eufaula, Al, United States
Re: ITB homemade (killah3084)
that looks really cool. what advantage do you get by doing that? also wouldn't there be a problem with air filtration?...and I doubt you could get it "carb legal" keep us informed
Chris
Chris
Honda-Tech Member
Joined: Jan 2002
Posts: 2,707
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From: socal, usa
machine made some homemade ITBs for his old h22 and now f20b
http://board.hondasociety.com/...t=ITB
http://board.hondasociety.com/...t=ITB
http://board.hondasociety.com/...t=ITB
http://board.hondasociety.com/...t=ITB
Modified by raceACCORDingly at 8:42 PM 10/28/2005
Originally Posted by machine
well you guys have been waiting for some pics oe my progress so here they are
.JPG)
getting started from the custom flange and runners (120 CAD total)
.JPG)
making sure there straight...kinda hard cause the rubber hose (bought from a big rig store ...its 1 7/8 rad hose) is alittle small for the runners but just right for the itb
.JPG)
a pic on how far off the linkage is gonna be
.JPG)
they line up ok ..not the greatest but should be better than using the stock mani and flange
.JPG)
lots of clean up to do on the flange ...
.JPG)
a look at the 3/8 steel brake line i used to space them out ...also the injectors need to be bored out to 3/8 to fit in nice and still have the nipple on the end in tact
.JPG)
final spacing with the fuel rail sitting in place
.JPG)
fuel rail again with lude injectors
.JPG)
again but from the front
.JPG)
finished product all spaced as if it were stock ...just not liek stock ...or somthign
.JPG)
again
heres some shots of the flange area ...keep in mind i have a lot of work to do on the flange stil
.JPG)
.JPG)
.JPG)
.JPG)
.JPG)
.JPG)
im am going to be running the injectors on the bottom so it puts the tps and throttle cables on the right sides and i think it will look kinda stealth ...well as stealth as they can look ....no velocity stack or filters yet ..i just wanna make sure its gonna work before i buy that stuff...im kinda broke
spacers were made from 3/8 brake line with some washers to keep thrm flush
all spacing was done with the fuel rail on as it would make or brake the fit to the flange and runners...even though the runners were welder with out spacing done ...but it was as easy as centering each one with the port . Runners 1 and 4 are a little of center but its not to bad ...hope fully it wont mess up the flow to much
injectors were bored out to 3/8 on a drill press ...its pretty easy i just held it level with my hand and went up in drill bits till i reached 3/8. i also grinded away a little bit of metal were the in gsxr fuel rail bolted on the make a bit more room for the injector (this is not a must ...i just wanted it to fit good so i could space properly and not have to worriy if they were jamed to much)
vac canisters are almost done ..made them out of 1 1/2 pcv with barbed plumbing fittins from home depot....
What i did do is make 2 seperate ones ..one just for MAP (its a smaller volume) and another for brake bosster fuel pressure and what ever else im forgeting
im hopeing by not having to much volume for the MAP it will react nice and quick...and the other vac needs wont hog it all......
thats all i can think about right now ...any questions ask away
BTW its on a stock jdm h22a with 2.5 exaust and a p08 ecu ..so im not wot\rried about EGR or anythign ....well see how it turns out ..
all thats left is a braket for the fuel rail ,weld some meatl in so the linkage works and finsh vac cannisters
getting started from the custom flange and runners (120 CAD total)
making sure there straight...kinda hard cause the rubber hose (bought from a big rig store ...its 1 7/8 rad hose) is alittle small for the runners but just right for the itb
a pic on how far off the linkage is gonna be
they line up ok ..not the greatest but should be better than using the stock mani and flange
lots of clean up to do on the flange ...
a look at the 3/8 steel brake line i used to space them out ...also the injectors need to be bored out to 3/8 to fit in nice and still have the nipple on the end in tact
final spacing with the fuel rail sitting in place
fuel rail again with lude injectors
again but from the front
finished product all spaced as if it were stock ...just not liek stock ...or somthign
again
heres some shots of the flange area ...keep in mind i have a lot of work to do on the flange stil
im am going to be running the injectors on the bottom so it puts the tps and throttle cables on the right sides and i think it will look kinda stealth ...well as stealth as they can look ....no velocity stack or filters yet ..i just wanna make sure its gonna work before i buy that stuff...im kinda broke
spacers were made from 3/8 brake line with some washers to keep thrm flush
all spacing was done with the fuel rail on as it would make or brake the fit to the flange and runners...even though the runners were welder with out spacing done ...but it was as easy as centering each one with the port . Runners 1 and 4 are a little of center but its not to bad ...hope fully it wont mess up the flow to much
injectors were bored out to 3/8 on a drill press ...its pretty easy i just held it level with my hand and went up in drill bits till i reached 3/8. i also grinded away a little bit of metal were the in gsxr fuel rail bolted on the make a bit more room for the injector (this is not a must ...i just wanted it to fit good so i could space properly and not have to worriy if they were jamed to much)
vac canisters are almost done ..made them out of 1 1/2 pcv with barbed plumbing fittins from home depot....
What i did do is make 2 seperate ones ..one just for MAP (its a smaller volume) and another for brake bosster fuel pressure and what ever else im forgeting
im hopeing by not having to much volume for the MAP it will react nice and quick...and the other vac needs wont hog it all......
thats all i can think about right now ...any questions ask away
BTW its on a stock jdm h22a with 2.5 exaust and a p08 ecu ..so im not wot\rried about EGR or anythign ....well see how it turns out ..
all thats left is a braket for the fuel rail ,weld some meatl in so the linkage works and finsh vac cannisters
http://board.hondasociety.com/...t=ITB
http://board.hondasociety.com/...t=ITB
http://board.hondasociety.com/...t=ITB
http://board.hondasociety.com/...t=ITB
Modified by raceACCORDingly at 8:42 PM 10/28/2005
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Joined: Aug 2002
Posts: 17,222
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From: SoCal
Re: ITB homemade (krispyaccord)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by krispyaccord »</TD></TR><TR><TD CLASS="quote">that looks really cool. what advantage do you get by doing that? also wouldn't there be a problem with air filtration?...and I doubt you could get it "carb legal" keep us informed
Chris</TD></TR></TABLE>
they run no filter, metal mesh will do.
carb legal? the only carb legal itb i can think of is M3, they have ITB stock with a big air box
and to the creator, good luck with the set up, goldeagle make a vacuum device that you can hook up abunch of line to one source, it's pretty cheap consider the quality and ease of the product.
Chris</TD></TR></TABLE>
they run no filter, metal mesh will do.
carb legal? the only carb legal itb i can think of is M3, they have ITB stock with a big air box
and to the creator, good luck with the set up, goldeagle make a vacuum device that you can hook up abunch of line to one source, it's pretty cheap consider the quality and ease of the product.
Junior Member
Joined: May 2005
Posts: 755
Likes: 1
From: TX, United States
Re: ITB homemade (krispyaccord)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by krispyaccord »</TD></TR><TR><TD CLASS="quote">that looks really cool. what advantage do you get by doing that? also wouldn't there be a problem with air filtration?...and I doubt you could get it "carb legal" keep us informed
Chris</TD></TR></TABLE>
It will be a lot louder which is noticeable and great for all motor applications. ITB's have been proven to make a decent amount of power for what they are worth. It definitely will not be carb legal. Raising the compression you could always deck the block etc etc. This sounds like a good topic to follow up on. Good luck on the F22A1 build keep us informed man.
Chris</TD></TR></TABLE>
It will be a lot louder which is noticeable and great for all motor applications. ITB's have been proven to make a decent amount of power for what they are worth. It definitely will not be carb legal. Raising the compression you could always deck the block etc etc. This sounds like a good topic to follow up on. Good luck on the F22A1 build keep us informed man.
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Joined: Jun 2004
Posts: 1,003
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From: Olathe, KS, 66061
Re: ITB homemade (NAiL05)
interesting! How do ITB compare to MEVI's (I think that's what its called)? My friend who has a Nissan was telling me about it, variable intake or something. I know the Mitsubitch 3000GT engine has one. Also I'm guessing an ITB would hurt your gas mileage (I know that's not why it was installed buy I'm cheap at heart) right but help your torque? How bout spooling time, I'm guessing it spools faster with less restriction (maybe good for you guys with turbo setups)?
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Joined: Jun 2004
Posts: 1,003
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From: Olathe, KS, 66061
Re: ITB homemade (Schmitey)
naw it wasn't anthing to do with valve timing, the intake runners changed path (like switching notes on a trumpet) to change the vaccuum going to each piston. Did some research, stands for middle east variable intake.
Here's a link of one a guy put on his Maxima (Nissan is nice because different gens bolt straight up). You can clearly see this does not replace the main throttle body/butterfly valve. http://www.thedv8tor.com/maximamevi.htm Here's another post that explains it a little better and has some dyno charts http://forums.maxima.org/showthread.php?t=217001 I can vouch for maxima.org they know what they're about and have helped my buddy out on his more than once.
Modified by Schmitey at 11:02 AM 10/28/2005
Here's a link of one a guy put on his Maxima (Nissan is nice because different gens bolt straight up). You can clearly see this does not replace the main throttle body/butterfly valve. http://www.thedv8tor.com/maximamevi.htm Here's another post that explains it a little better and has some dyno charts http://forums.maxima.org/showthread.php?t=217001 I can vouch for maxima.org they know what they're about and have helped my buddy out on his more than once.
Modified by Schmitey at 11:02 AM 10/28/2005
Thread Starter
Joined: Oct 2005
Posts: 71
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From: Ocala, FL, usa
Another link. No luck w/ f22a1 DIY yet...
If won't find anything, just gonna buy f22a1 intake manifold and cut it...Cut must be after fuel lines attachment....Thinking of using Suzuki GSX-r throttle body(TB) or any suzuki 1000+cc TB... Runners is a big question... I need power at 4000-5500rpm, not at 6500+..
http://www.todaracing.com/itbfaq.htm
If won't find anything, just gonna buy f22a1 intake manifold and cut it...Cut must be after fuel lines attachment....Thinking of using Suzuki GSX-r throttle body(TB) or any suzuki 1000+cc TB... Runners is a big question... I need power at 4000-5500rpm, not at 6500+..
http://www.todaracing.com/itbfaq.htm
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Joined: Aug 2002
Posts: 17,222
Likes: 3
From: SoCal
Re: ITB homemade (Schmitey)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Schmitey »</TD></TR><TR><TD CLASS="quote">naw it wasn't anthing to do with valve timing, the intake runners changed path (like switching notes on a trumpet) to change the vaccuum going to each piston. Did some research, stands for middle east variable intake.
Here's a link of one a guy put on his Maxima (Nissan is nice because different gens bolt straight up). You can clearly see this does not replace the main throttle body/butterfly valve. http://www.thedv8tor.com/maximamevi.htm Here's another post that explains it a little better and has some dyno charts http://forums.maxima.org/showthread.php?t=217001 I can vouch for maxima.org they know what they're about and have helped my buddy out on his more than once.
Modified by Schmitey at 11:02 AM 10/28/2005</TD></TR></TABLE>
i think you are talking about the dual intake runner system, in low speed short runner are open up to get more torque and quick response, during high speed the long runner are open up and it provide more horsepower which is more useful in higher speed.
it's first used in old old old vette'
Here's a link of one a guy put on his Maxima (Nissan is nice because different gens bolt straight up). You can clearly see this does not replace the main throttle body/butterfly valve. http://www.thedv8tor.com/maximamevi.htm Here's another post that explains it a little better and has some dyno charts http://forums.maxima.org/showthread.php?t=217001 I can vouch for maxima.org they know what they're about and have helped my buddy out on his more than once.
Modified by Schmitey at 11:02 AM 10/28/2005</TD></TR></TABLE>
i think you are talking about the dual intake runner system, in low speed short runner are open up to get more torque and quick response, during high speed the long runner are open up and it provide more horsepower which is more useful in higher speed.
it's first used in old old old vette'
Thread Starter
Joined: Oct 2005
Posts: 71
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From: Ocala, FL, usa
http://www.twminduction.com./T....html
They told me that i should use an h22 kit, not s2k.
But it way more than i'm willing to pay - $4000 - $5000...
Thanks for the post of the h22 ITB's with pics. That helps a lot.
Modified by killah3084 at 9:57 AM 10/29/2005
They told me that i should use an h22 kit, not s2k.
But it way more than i'm willing to pay - $4000 - $5000...
Thanks for the post of the h22 ITB's with pics. That helps a lot.
Modified by killah3084 at 9:57 AM 10/29/2005
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