Like the title says there is no coolant lines on my BDL throttle body. Just by looking at it I would say put the lines together. Before I did I came on here to look first and see what the masses say. Well I found out you can but it messes with your idle or some crab like that. Should I do it or what do I do? Thanks

 

I have a coolant block off plate on my oem bored tb and it does cause you to idle a bit high. Im at 950 - 1000. But its not really that bad, people claim it helps make power but I dont know about that.

 

Yeah I read some posts of people saying you gained power. I mean some of the crap that goes around is just crazy. I think honda-tech should do like a top ten post of all time. Anyway my is not to make me faster just my throttle body doesnt have the spots for them. I dont mind the higher idle my car is not for comfort it is a race car. " I live my life a quater mile at a time." Lmfao

 

lmao. The bolt that sucker up

 

I bypass the coolant lines to the FITV and IACV on all of my cars. So far that has been an EF, an EG (going on 3 years now), a DA, and a DC. If you do it correctly, you have no problems and it's OEM quality.

WARM CLIMATES ONLY. The secondary purpose FITV or any coolant run to the tb is for the purpose of unfreezing the throttle plate in freezing climates. The primary purpose for the FITV is to raise the idle speed until the engine reaches operating temperature.

In general, you find the output from the head/intake manifold that goes to the FITV, and unplug the FITV side. Then you find the input to the head/hard coolant line from the IACV and unplug the IACV side. Take a longer hose and connect the input directly to the output. The IACV is fine, no need to plug the lines. The FITV however MUST be blocked off and one of the lines needs a vacuum cap. I block it off with some paper gasket material you can buy in a roll. On my EG I cut a piece of metal, got some short 10mm screws, and completely replaced the FITV.

Bleed the coolant. Reset the ECU. Take it for a drive. I can't remember specifically if the idle was raised (make sure you're at operating temperature), but adjusting the idle screw would be the easy answer if you're sure everything was done correctly (no vacuum leaks and no bubbles in coolant). Follow the correct procedure for setting the idle. Check the ignition timing.

On my EG it felt about the same increase as the AEM CAI, but this is purely subjective. I'm sure the difference is very small and may not even affect the peak hp. Most likely the benefit is a reduction in heat soak which wont help you on the drag strip but will make street power much more consistent like the effect of the Hondata Heatshield. MPG definately increased 1-3mpg on each of my cars.

Any true performance aftermarket tb would exclude the FITV. The Integra type R excludes it. The DA and some Civics have the FITV seperate from the tb.

 

Thanks man I will give it a try.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 5_Lug_B &raquo;</TD></TR><TR><TD CLASS="quote"> Im at 950 - 1000. But its not really that bad, people claim it helps make power but I dont know about that. </TD></TR></TABLE>

you can use the idle screw to take care of that one!


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jgrogan &raquo;</TD></TR><TR><TD CLASS="quote">Yeah I read some posts of people saying you gained power. I mean some of the crap that goes around is just crazy. I think honda-tech should do like a top ten post of all time. Anyway my is not to make me faster just my throttle body doesnt have the spots for them. I dont mind the higher idle my car is not for comfort it is a race car. " I live my life a quater mile at a time." Lmfao</TD></TR></TABLE>



hondata also will back that theory up to and when ever you can take heat away from the intake charge process your going to gain power hence the coolant lines going to the TB and the IM

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by suspendedHatch &raquo;</TD></TR><TR><TD CLASS="quote">

WARM CLIMATES ONLY. The secondary purpose FITV or any coolant run to the tb is for the purpose of unfreezing the throttle plate in freezing climates. The primary purpose for the FITV is to raise the idle speed until the engine reaches operating temperature.
</TD></TR></TABLE>

Or if you live in a cold state then you can just remove this during the summer also worth noting that using the water wetter and distilled water also helps to lower engine temps

Also wrapping your air intake can help along with the hondata or who ever heat shield gasket

You have to remember every little helps into building power and heat kills power!

 

Yeah I see that. Well I put the throttle body on and I am having issues right now. The car had trouble starting and when it does it bounces around in the rpm band from right about 1000 to 1500. When I give it gas it dies. I am scared I am going to hurt the motor it is a fully built 2.0l ls/vtec that is going to be turbo. I think I will just leave it be get everything installed and take it to tony1 for the tune. It would be nice to have it running.

 

Forgot to say that I looked for the fitv and I dont see it. I find the iac and what I did was take the 2 hoses on the bottom of the throttle body put them together. I think this is what is wrong but I dont see the fitv and all the other stuff to do it right.

 

run &lt;crome&gt; or what ever and get it tuned should take care of the problem

 

Tell me what you think about this guys.
Here's what I did. I by passed the TB and went right to the IACV (i kept it cuz it gets cold where im from).
My question now is, should i hook those two nipples that are not hooked up to anything together? One nipple is from the thermo housing and the other is from the upper radiator housing. From my point of view, I dont really see any reason to do thise because this would just add more heat to the water/coolant. But then again, this will promote water flow. haha. lemme know what you think. thanx.
and sorry about high jacking this thread, but i need someone to double check my work really bad!

 

No other ideas what is going on with my car.