1st off I am planning on building a set of ITBs for my b16, and I am curious to know a couple of things.

1st is, what do you do as far as ALL the coolant lines go? I've searched many times, but nothing about coolant facts. for example, the IACV, FITV, am I still to retain any of this? I know the FITV is on my TB so that answer to that would be no, but the IACV is confusing.


2nd is, where did all of you get ur runners/flange either made or bought from? I was looking at a spare intake manifold I had off my b16a2, and i noticed it's too curved for my to even cut and weld those... I was looking into a GE/Venom IM's but they are really really expensive!

3rd is, where did most of you bolt your IAT/MAP sensor to? And I remember reading a couple of issue's with the TPS being out of wack? I tried to see if the person come up with a remedy but I saw nothing on the rest of that forum... so any help there would be great.

I think that is it. Oh Ya! is it also nessacary to use a vaccum log?

 

1st: You'll eliminate the FITV all together, and the IACV you'll leave plugged in but with no coolant flowing through it. So you'll have a total of four nipples exposed, by connecting the source of the FITV inlet to the location on the back of the coolant line under the intake manifold you'll have the same flow pattern and completely bypass all the un-needed stuff.

2nd: Everyone(with the exception of one or two who are lucky enough to cnc their setups) uses a stock intake manifold and cuts it off right after the injector location and welds some 1.5"-1.75" aluminum tubing that is ovaled out slightly on the intake manifold side. A GE/Venom style manifold would make things a ton easier, i'm not sure what is out there for B series that is made by OBX but they make some single cam manifolds for about $100 on ebay that would do the trick nicely for a pretty damn good price since no real welding would be required.

3rd: Intake Air Temperature sensor is left dangling near the inlets of the throttle bodies, and map sensor is either ran from a vaccum canister or use the stock motorcycle location that is tee'd off of all four cylinders.

You'll need some sort of vaccum canister that has a strong source of vaccum for the brakes.

 

could i drill and weld a nipple for the brake booster?

and what about TPS?

I looked for a IM by OBX... but it is not on their website... I will look on ebay and see what the deal is on that. But the thing with the stock manifold is that, it curves to much, and it doesn't have a straight enough alignment to even weld something else on there... at least I don't think it looks like it could be? Also can I drill and tap the firewall to just bolt the IACV instead of leaving it hanging?

And when u said this... "and map sensor is either ran from a vaccum canister or use the stock motorcycle location that is tee'd off of all four cylinders." I can't picture it in my head... but are you saying that each TB has a Map sensor? if so how would I Tee that off, since it is a sensor, not just vaccum nipples?

But I really appreciate your answers... and quick response you have already been a great help thanx. TO you

 

Actually, we've gotten the car to run much better if you keep coolant flowing through the IACV. Just zip-tie it out of the way somewhere.

Zip-tie the MAP and IAT sensors out of the way as well.

We've used nothing but OEM Honda intake manifolds to make our ITB's and haven't had any problems. In fact if you want, we can make you a submanifold that will fit your ITB's perfectly.

If you properly mount and calibrate the TPS then you won't have issues. My partner figured out how to get them to read surprisingly close to Honda specs when mounted on Suzuki throttle bodies, however I'm not at liberty to share this information. We do mount TPS's for a reasonable fee.

We experimented with a few vacuum canister setups and found that everything runs better without one.

 

Also, another question I forgot to ask.... which would be the best spot for fuelinjectors? stock location? or on the TB's? Someone said TB's because of the fuel atominzation.... though that sounds reasonable... I would think I would eventually create alot of build up on my runners from fuel sticking to it... alotta carb build up as well..

 

how would i still have coolant running thru the IACV? if it is not hooked up to anything? what would I do as far as those 2 holes on it, since it normally fits on the backside of the IM?


And how much would it cost for the submanifold?


do you have a pic of your ITB setups you sell?

And to tune the TPS how much do you charge for that?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GumballNA &raquo;</TD></TR><TR><TD CLASS="quote">Also, another question I forgot to ask.... which would be the best spot for fuelinjectors? stock location? or on the TB's? Someone said TB's because of the fuel atominzation.... though that sounds reasonable... I would think I would eventually create alot of build up on my runners from fuel sticking to it... alotta carb build up as well.. </TD></TR></TABLE>

The rule of thumb is that the farther back the fuel injectors, the more the fuel will atomize. The problem is that selecting the perfect injector location is virtually impossible with the motorcycle ITB setups thus leaving us with the stock location being "good enough". Fuel buildup isn't really an issue as it dries quickly.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GumballNA &raquo;</TD></TR><TR><TD CLASS="quote">how would i still have coolant running thru the IACV? if it is not hooked up to anything? what would I do as far as those 2 holes on it, since it normally fits on the backside of the IM? </TD></TR></TABLE>

Cut out a piece of steel or aluminum and drill the necessary holes to block off the passages on the IACV and then run coolant through the stock coolant passages.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GumballNA &raquo;</TD></TR><TR><TD CLASS="quote">do you have a pic of your ITB setups you sell?</TD></TR></TABLE>

Search for topics created by -BEN- and you'll see some pics that he took.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GumballNA &raquo;</TD></TR><TR><TD CLASS="quote">And how much would it cost for the submanifold?

And to tune the TPS how much do you charge for that?</TD></TR></TABLE>

IM me and we'll talk.

 

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