IAC relocation?

[bduke23]

Ok thanks. Alright this one is of the airbox, what I thought was the IAC is on the left side, and the other vacuum thing is on the right.

Heres a closer look at the IAC?

And this is where the seperate hose goes into the intake

 

[Original_Ranger84]

The one on the left looks like the IAC and the right is the IAT. My carbed truck has the IAT but no IAC.

So you want to put a CAI in the truck to increase resale value or something you said?

 

[adsm08]

Ok, so holy freaking crap Batman. There appears to be an IAC on your air box.

The other lines are for ported or venturi vacuum. I never really figured out what they were for, but my 2.9 has the same ones.

A newer 2.3 TB with IAC location at the throttle might help you here.

Knowing what those vac lines control would help to figure out the best place to relocate them too, but to be honest, you don't have a crappy intake system compared to what your engine can handle. The early FI Rangers had some of the best factory intake systems ever.

CAI systems tend to mess things up and actually reduce power by sucking up hot engine air. If you really want more power, go do the Ram air upgrade in the tech library.

 

[Mutant Pony]

Yes, that is the IAC on the side of the airbox. Ford calls it a "Bypass". Most people that know anything about Rangers would be less likely to buy it with a CAI on it, thereby reducing the vehicles value. Spend your money elsewhere.

 

[bduke23]

Well I think they look cool ha ha. And from the aspect of pipe flow analysis, all the curves it takes to the intake are understandably less than ideal. I've actually changed my idea a bit anyway, I'm going to just turn the box 90 degrees sideways and move it back a couple inches, then cut the bends of the rubber pipe and shoot it straight across from the box to the intake. That should provide a fairly large increase in laminar air flow. Besides, even if it doesn't result in that much of an increase in power, mileage, etc, it definately is not going to hurt it

 

[heptofite]

My bad dude. I thought that said "no it's NOT fuel injected". Um, I'm still not sure exactly what we are talking about, but I'm also still pretty sure its not an IAC.

IAC should be bolted to the side of the throttle body. I don't think its the IAT either though, that should be screwed into the intake manifold.

Got pics?

it IS an IAC, i had a 2.3 ranger and it's an identical part number to the device bolted to the upper intake on a 2.9

spectre makes an adaptor to bolt your IAC onto so you can use a cone.

 

[bduke23]

Spectre? Ok thanks, I'll check that out

 

[Bob Ayers]

That should provide a fairly large increase in laminar air flow. Besides, even if it doesn't result in that much of an increase in power, mileage, etc, it definately is not going to hurt it

Don't fool yourself! If the intake tube ahead of the throttle plate was the limiting factor for airflow you would be on to something. But it isn't!

Once again, the only thing your going to gain is dirt/oil ingestion (if the cone is a K&N) and noise!

 

[bduke23]

It may not be the largest limiting factor, but it is limiting none the less. Perhaps you missed it, but I have already said instead of using a cone intake I am going to change the orientation of the airbox and take out the bends in the intake pipe

 

[adsm08]

I forget, but are you doing this just for power, or are money and time factors too?

If they aren't so much as power, then you may want to consider a 2.3T swap. Now that is some power increase.

 

[bduke23]

I'm a student, so money is a factor. Time won't so much be a factor coming up in the summer. A turbo swap would definately be cool... but this is my only winter vehicle so i also have to consider efficiency. Would a turbo swap gain any mileage? With the same driving and acceleration habits as before of course

 

[Original_Ranger84]

Even if you changed the dynamics of the intake you would gain nothing, zip, zilch. The intakes as big as it needs to be if not already bigger then it needs to be and will suck in just as much air as it could possibly need even with a few bends in there... if anything its going to open it up more and drop the power just like a CAI.

If you really want an increase in power and efficency get a tune up and play with the plug gap between the recommended specs, tire pressure, maybe port and polish the head.