ITR and twm itb setup
 

Hello guys.

I´ve been reading this forum for long and never participated because i´m mostly learning for some time
Right now i´m kind of desperate as i´m just next to the car writing this on the portable and i need help.
I have this integra type r with b18c6 engine. We bought a itb kit from twm (50mm) and we´ve just installed it now.
THis kit was second hand but never used.
It has injectors from delphi that are part number d3181aa wich i searched and found to be 440cc´s high impedance.
I wish someone could confirm this.
Do theese injectors need resister box? I didn´t use it as i mesured their impedance and was about 14 homs.

Also i wired the tps according to the twm direction to flip the 2 outer wires from sensor.

Then right now everything is connected and the car starts.

I have crome pro and ostrich and wideband.

I picked up a stock 209 from crome, increased to 1800cc, changed to 440cc´s, installed itb tools and putted the tps values i read on the sensor (0,39v idle and 3,94 wot) and don´t have cells.
The car works at idle.

I plugged the 4 vaccum sources from the itb´s directly to map sensor.
The master celinder brake has a hose to one of the it´s to give vacuum.

Crome reads ~600-800mb MAP pressure at idle, 1% at TPS.

Problem is that at idle i get like 19 AFR and idle is jumping from 1000 to 2000.
Plugs are whitie exept for 1 that seems a litle blacker.

Can anyone please help me on this?
I have never done this kind of project.

I´m just by ther car and if someone can help would be great!

Thanks!

Re: ITR and twm itb setup
 

the only thing i know of would be to adjust your TPS- it might help

idle ~ .45v
WOT ~ 4.5-5v

Re: ITR and twm itb setup
 

The part number which you gave is a delphi/lucas injector and has a flow rate of 42lb, which equels to 441.42cc/min, so at least you know you have 440cc injecters, also with them being 14ohms, you will not need a resisiter box, hope this helps?

Re: ITR and twm itb setup
 

I thought about that, but when i saw that in the crome plugin you can costum the values i thought that i could read what i get and setp it up in crome.
Even using this i should fine tune my TPS, ok...
Well don´t get mad at me but how can i do that?

I can give it a try right now!:)

Re: ITR and twm itb setup
 

Thanks a lot as i had this doubt!
Because we´re running on this engine 450cc´s and we had the resistor in place.
What i did was to rewire the 4 yellow/black cables from the resistor to the same color on injector.

I see on hondatech that someone has the idle at -350 mmHg, well i see on crome datalog about 600-800... WTF!
Is that because i pluged the map sensor directly to the 4 vacum lines from itb.

Also i see a strange thing happen... i see the inj pulsewith in crome vary from 0,7 to 6% all the time, this is normal?

Here are some pics trying to show how it´s done

http://img485.imageshack.us/img485/4...m0767rp.th.jpg
http://img485.imageshack.us/img485/5...m0770if.th.jpg
http://img485.imageshack.us/img485/5...m0786ky.th.jpg

Re: ITR and twm itb setup
 

From a standard map flipped to 440cc´s shouldn´t i have more or less the usual idle?
Like at idle the diference in air comming is is great?

When you guys tuned your maps did you have to add a lot of fuel when running itb´s?

I´m worried because i get 19-20afr and why?

Re: ITR and twm itb setup
 

if thats what crome reads then ad more fuel to those columns till you get the afr to where you want it.

totally different motor , dont matter

Re: ITR and twm itb setup
 

Rx7tocivic:

Hi! Thanks. I have already tried to add 25% more fuel in the cell and sorrounding where my idle is loged on the map, even tried to add 15% at all the part o f the map that the map controls. Still get 18afr at idle. If i went from 20-25 to 18.* from adding 25%.. well i´ll have to add a LOT more fuel. This doesen´t make much sense i think. I maybe wrong.

like stock map cell used has about 100, i added to about 270 and still on 18afr.
The plugs are white except for cyl 2 that is darker than the others.
Ign at idle is about 25º.

The ideia af plugging the vac from each itb to the map is wrong?
On the tps i didn´t rev but if ut´s at 1% i think it´s correctly connected.
Stock tps has blue/black/yellow and the one on the itb (that looks just like the usual honda tps) has black/white/grey(or sort).

Also i didn´t connect iacv.

Re: ITR and twm itb setup
 

Helps a lot because by now i´m all full of questions.. thanks!

Re: ITR and twm itb setup
 

when your adding 25% your not adding 25% more fuel your adding 25% more of that value. It seems odd but if you only add 10% to the value it will some times change .75-1.0 of an afr depending on the size of the injector

Re: ITR and twm itb setup
 

Yes, ok. I think it´s strange because if i´m going to raise this ammount at idle imagine how much i´ll have to do at wot!
That´s why i started to think that it´s starnge to be so lean.

So for what seems i´ll have to go about more 60% on idle area to try to keep it at 14,7afr more or less.

Re: ITR and twm itb setup
 

It's pretty well known that ITB's typically get poor gas mileage. I don't really know much about ITB's but I can't see why you would need all four tied into the MAP since they should all have exactly the same amount of vacuum. If that little vaccum log thing was provided with your kit you should probably use it though, lol.

By the way...that's an expensive setup, you must have a good job or something.

Re: ITR and twm itb setup
 

itbs' are a waste of time, you're gonna gain maybe what? 20hp? go with a good t3/t4 on that integra and you'll wonder what the ---- you where thinking about when you spent your money on itbs. oh and with the turbo charger you'll gain atleast 120hp at 10-12psi.

Re: ITR and twm itb setup
 

This setup is our NA project that keeps evolving.
It just had the victorx mainfold with 450cc´s (base for future grouw).
Car is veru powerfull.
About 204hp, 174hp/wheels.

Now we were planning to supercharge it but now this oportunity came and we decided to grab it.
Strange as it may seem to you, noone herel has made them work on a street honda.

I´d really love to make this work!

As for the vac, i keep seeing all itb setups puting the 4 vacs onto a box and them to the map, as i have th emaster cilinder linked to one of the itb runners i thought that the way it is should be right.

Re: ITR and twm itb setup
 

Where you from?

Re: ITR and twm itb setup
 

thats the way it should be, you want the ecu to see the vacuum for all the cylinders. the thing that sucks about itbs is it takes alot of tuning seeing how the all the vacuum dissapeers as soon as you crack the throttle, thats why its better to tune it via tps angle

Re: ITR and twm itb setup
 

Ok. Here i am again next to the car.
I´m going to ad a lot of fuel and see what happens!

Re: ITR and twm itb setup
 

Again next to the car and going to try a major enriched fuel map.
Let´s see how it goes.

Re: ITR and twm itb setup
 

http://img7.imageshack.us/img7/8234/15pl.th.jpg
http://img40.imageshack.us/img40/7167/23wo1.th.jpg
http://img40.imageshack.us/img40/987/31fe.th.jpg

Re: ITR and twm itb setup
 

b18c6 = europe somewere ;)

Re: ITR and twm itb setup
 

thats wat i was thinking???

Re: ITR and twm itb setup
 

So what was the result of enriching the map?

It sounds like you've got it all set up right, so hopefully adding more fuel will do the trick.

Re: ITR and twm itb setup
 

Hi guys!

Yes i´m in europe (portugal)!
To my knoledge is the only honda that is running itb´s on the street.

I´ve managed to solve my idle problems. Turned up that i had 2 butterflys colsed and no air comming in... lol
Now idle is perfect and stable! :)
In about 2 hours i´ll start the road tuning to build the maps.
Something tells me that this beautiful car will be on the road soon.

I can´t stop thanking Blundar for the amazing patience and help he gave me on sunday regarding this project!
THANKS!

PGMFI Rocks!