Sneak peak of my HM-ITB's
 

Some of you sounded interested in the Homemade ITB setup, so I figure I'd post a few sneak peak pictures of something I'm working on right now. I'm going to have a full write up "HOW-TO" when I'm done..

https://www.homemadeturbo.com/tech/itb/itb1.jpg

https://www.homemadeturbo.com/tech/itb/itb2.jpg

https://www.homemadeturbo.com/tech/itb/itb3.jpg

Basically, its a factory B16a manifold that was chopped off, with 1 1/2 in runners welded on (1 7/8 dia) I then had it surfaced, attached the GSXR 1000 42mm Throttle bodies on using Silicone rubber adapters. Everything is looking pretty good so far, I ordered some velocity stacks eariler this week, and still need to work out my TPS situation. But other than that they are pretty much done. I should have less than 200 dollars in the entire setup. I'm very eager to see what these things sound like, lol...

https://www.homemadeturbo.com/tech/itb/work.jpg

and yes... I'm still building a 500whp B-series :)

Jeff

Re:Sneak peak of my HM-ITB's
 

that looks damn nice jeff! wow. look at all those purdy engines!

Re:Sneak peak of my HM-ITB's
 

great execution!

Re:Sneak peak of my HM-ITB's
 

Looks damn good. ;D

Re:Sneak peak of my HM-ITB's
 

by that last picture I think I know how youll be geTTing 500whp but I wont spoil the surprise.

All I have to say is that if its what Im thinking YOUR THE ------- MAN!

Re:Sneak peak of my HM-ITB's
 

Damn, you got all the pimp ----. ITB setups and 500hp B series. What's next? :o
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Re:Sneak peak of my HM-ITB's
 

I wont be geTTing 500whp with the way your thinking... Thats just another "fun project" that will come after the ITB's

The Girl in your avatar... :P

BTW... I could use another Engine stand for Christmas! >:(

Re:Sneak peak of my HM-ITB's
 

TRATIOR!!! :P haha looks bad ass, will probly be faster than my car... :-\

Re:Sneak peak of my HM-ITB's
 

When those ITB's are on, I wanna go for a ride.......through a tunnel. mmmmmmmmmmmm BWAAAAAAAAAAA

Re:Sneak peak of my HM-ITB's
 

What management do you plan to run with the itb's. I keep hearing about tuning problems on factory ecu's due to map sensor issues.

Re:Sneak peak of my HM-ITB's
 

I'm using the Zdyne SECU, hopefully it will work ;) I'm looking forward to the challenge ;D

Re:Sneak peak of my HM-ITB's
 

that is going to sound raw! your torque curve will be all or nothing just like your throttle body will be all open or nothing.

NEUMAN

Re:Sneak peak of my HM-ITB's
 

mad props for the ITB setup, you should make a mild cowl hood and a scoop down to them for mad air intake. That'd be sick. I can see issues with the MAP reading, and what about idle control? Just leave them cracked a bit and let her rev? Seems like it would be tough to get that working alright...

Re:Sneak peak of my HM-ITB's
 

for idle i would just tighten the throttle cable, then it will be open like 2-5% at a min at all times...think that might work?

neuspeedescort, that Escort roll in Everett??

Re:Sneak peak of my HM-ITB's
 

Well, as far as Map and idle are concerned, a small vacuum log connected to all 4 runners should smooth things out. The IACV could then be connected so that it bleeds into the vacuum log. Atleast this is what Jay and I plan to to when we hook his ---- up. Im sure we will run into small problems, but nothing a PGMFI.org rom editor wont fix ;)

Whats the ETA on your ---- Jeff?

Re:Sneak peak of my HM-ITB's
 

The ITB's have a Throttle stop that is adjustable, so I will just have the butterflies slightly cracked open to keep it running. Its going to be a pain in the ass to get running right, but I'm determined :)

btw, there might be a little direct port nos with this setup ;D

Re:Sneak peak of my HM-ITB's
 

BTW... I could use another Engine stand for Christmas! >:(
hum i might be able to get you another but in all truth you said "do what ever with that ---- out there it doesnt meen anything to me" :-\

but on the same christmas present note i sure could use a zc or a zc that needs to be rebuilt ;)

Beau

Re:Sneak peak of my HM-ITB's
 

i'll get you an engine stand for xmas, but, yes, i need a built b18 bottom end please ;)

Re:Sneak peak of my HM-ITB's
 

i think i see what you're going to be building in that bottom pic. i figured you would try it sooner or later. good luck.

Re:Sneak peak of my HM-ITB's
 

the log should work, and if your using ish from pgmfi, you can just disable i IACV and use it as a paper weight.
K.I.S.S.

Re:Sneak peak of my HM-ITB's
 

PGMFI software doesn't have anything to do with disabling IACV. In an OBD0 car, a Radio Shack 10w-10ohm resistor (Part Number 271-0132 ..to be exact..) spliced between the terminals.

-------------------
As far as the ITB setup... I *hope* Jeff will consider tackling this etup with TE. I believe if we work together, we can get this setup quite nicley.

As TurboEDIT can do *ANYTHING* Zdyne can do.. and more! ;D

Re:Sneak peak of my HM-ITB's
 

I've already told you this, send me a ECU, software and everything I need to do it, and I'll spend some time on the dyno getting everything running nice and good. ;D

Re:Sneak peak of my HM-ITB's
 

Kick ass.. Let me know when you're ready.. I'll have to hunt down an extra PM6.. but I'm sure I can find something.

..I don't have a programmer I can spare though. :(

We might have to wait until we can RTP.. but that should only be a two months or so..

Re:Sneak peak of my HM-ITB's
 

got ideas about the throttle cable?

Re:Sneak peak of my HM-ITB's
 

Looks as if they're all controlled by one lever.

Note his finger holding the bufferflies open.. one finger. :-/

Re:Sneak peak of my HM-ITB's
 

damn jefff u always seem to amaze me... that is ------- crazy... haha i finaly got a harness for my car...

Re:Sneak peak of my HM-ITB's
 

Nice Jeff...I got wood.
I want ITB's ;D
That turbo Mani you're making looks as if it's going to be a crazy work of art....or ..hmmmmm

Re:Sneak peak of my HM-ITB's
 

How much is a programmer? I suppose I could buy one, I plan on getting this thing in within the next week or so.

The throttle linkage is all together, I think I should be able to fab the stock one to work somehow ;)

Jeff

Re:Sneak peak of my HM-ITB's
 

damnit jeff, you gave me ideas.

Re:Sneak peak of my HM-ITB's
 

where did you get those throttle bodies from and how much did u pay for them?

Re:Sneak peak of my HM-ITB's
 

where does all this money come from Jeff ? :P Thats pretty blingin. Make sure you dyno !

Re:Sneak peak of my HM-ITB's
 

jeff - i was just telling my buddy about your motor lastnite after he was making fun of a 4 barrel carb and saying i need it on my car. tho they are way diferent he shut up once i said yeah this guy off HMT.com....... it made for a good in your face comment.

travis - he has thre matching honda civc's you can figure it out from there.

turbohf - yes i roll in everett. i live in granite falls and work in woodinville. so you could see me just about anywhere.

Re:Sneak peak of my HM-ITB's
 

Throttle boddies ~50
Welding pipes ~75
Resurface ~30
Velocity stacks (not shown) ~40
Silicone adapters w/ misc stuff ~20

I dunno 200 bucks isnt really that much is it? :P

Re:Sneak peak of my HM-ITB's
 

:P

Re:Sneak peak of my HM-ITB's
 

It is when your 15 Years old :P

Re:Sneak peak of my HM-ITB's
 

im turning 17 in March you goon. :-*

Re:Sneak peak of my HM-ITB's
 

That is ------ sweeeeeeeeeeeet. Be happy those carbs aren't flatside mikuni's ,there a bitch to tune. Looks awesome bro ;D

Re:Sneak peak of my HM-ITB's
 

or be happy that they are not carbs in the first place. although it'd be funny to see a carb setup on a B series. was a B20A carburated? no right?)

Re:Sneak peak of my HM-ITB's
 

Nice. That looks really good. Here's a $3000 Jun intake manifold, its got a chopped flange just like what your doing but no individual throttle bodies

http://i3.ebayimg.com/02/i/01/11/57/26_1_s.JPG

https://i5.ebayimg.com/02/i/01/11/3a/31_1_s.JPG


Doesn't it make you feel good that you can build something yourself thats better than a $3000 manifold

Re:Sneak peak of my HM-ITB's
 

New style Toyota 4age 20v engines use ITB and they have the vacuum log thing from the factory. Sounds like it should be a winner. Nice work, too. One thing you probably already know is that a progressive linkage would really smooth out the response from that setup. Like a weird decreasing radius roller for the cable to pull on. I dunno, just a thought. Cracking open a 42mm throttle plate even a little moves a great deal of air.