IAC and IAB

H

humaxxx

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May 2, 2007

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May 30, 2007

#1

• May 30, 2007

• #1

What is de difference between the IAC and IAB ???
I was reading about this in an artical and i don't know the difference

greets from holland

 

jrichker

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#2

• May 30, 2007

• #2

There is no functional difference. One year the auto makers called it an IAC and another year they called the same part an IAB. They are just trying to make us think that they are doing something new so we will keep spending money to get the latest and greatest stuff.

 

Ike83

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May 30, 2007

#3

• May 30, 2007

• #3

I've got an '87 GT, so that would be an IAB, right?

 

HISSIN50

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#4

• May 30, 2007

• #4

at Jrichker's comments.

I'd add that if you're into self-tuning, they go with ISC (Idle speed controller).

 

T

Twisted306

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#5

• May 31, 2007

• #5

dose the motor have to have the ICA motor

 

HISSIN50

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#6

• May 31, 2007

• #6

Twisted306 said:

dose the motor have to have the ICA motor

Click to expand...

Technically no. But the IAC has many functions (cold idle assistance, load assistance, dashpot function, rolling idle compensation, etc).

I would not want to run without an IAC, and I see it as a safety concern due to the increased risk of stalling without one.

 

T

Twisted306

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#7

• May 31, 2007

• #7

i dont like the IAC on first start up cold with high oil psi it rev the motor up i been told never rev a cold motor with high oil psi i run 95-100 psi old with 20/50 oil at 180 temp its at 70-75psi is there a part i can add to it so it dont rev as far

 

jrichker

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#8

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• #8

Twisted306 said:

i dont like the IAC on first start up cold with high oil psi it rev the motor up i been told never rev a cold motor with high oil psi i run 95-100 psi old with 20/50 oil at 180 temp its at 70-75psi is there a part i can add to it so it dont rev as far

Click to expand...

The RPM increase on a cold engine does not hurt anything. The RPM's are set by the computer program. The computer program can only be changed with a tweecer, or other programming device, or a custom dyno tune chip.

Forget anything you have been told about high oil pressure on startup. It won't hurt anything, Ford designed it that way. I have over 283,000 miles on my Mustang and have never had a problem due to oil pressure spikes on cold startup. I have never head of any problems due to high oil pressure on startup discussed here on Stangnet in over 7 years.

 

HISSIN50

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#9

• May 31, 2007

• #9

It seems to me that the stock pump bypass was set at ~60 PSI.

For Twisted306, a quick question: If you have a fresh mill and aftermarket oil pump providing awesome hot idle oil pressure (generally where the lowest oil pressure is observed), why run 20W-50?

 

T

Twisted306

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#10

• May 31, 2007

• #10

jrichker said:

The RPM increase on a cold engine does not hurt anything. The RPM's are set by the computer program. The computer program can only be changed with a tweecer, or other programming device, or a custom dyno tune chip.

Forget anything you have been told about high oil pressure on startup. It won't hurt anything, Ford designed it that way. I have over 283,000 miles on my Mustang and have never had a problem due to oil pressure spikes on cold startup. I have never head of any problems due to high oil pressure on startup discussed here on Stangnet in over 7 years.

Click to expand...

when i was shown to build ford motors i was told to keep the oil psi up the summer heat is so hot at time when the wind blow it burns i dont want what happen to my last 302 it had 12 psi with stock pump with 20-50 oil with 96k mile that is why i run the high melling high volume oil pump. summer heat realy kills my oil psi winter i run 10-40 i dont like the IAC when it cold out i seen oil psi blow off oil fiters a few times i was told to run the 20-50 becuse i have a heavy foot ever chance i get im runing it hard

 

T

Twisted306

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#11

• May 31, 2007

• #11

i run a melling high volume oil pump i dont want what happen to my 302 when i wa 17 it had 12 psi with stock pump motor has 94k on it with 20-50 oil. the summer heat here realy heats the oil up so i lose lot of the psi. winter time i run 10-40 just when it cold out side i dont like the IAC rveing the motor i seen a few oil fliter blow off make a mess for oil fast

 

I

izzleon

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#12

• May 31, 2007

• #12

iab

IAB IS INTAKE AIR BYPASS

 

T

Twisted306

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#13

• May 31, 2007

• #13

what will the motor do if i take off the IAC motor and run a block off plate

 

AnthonyR23

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Jun 1, 2007

#14

• Jun 1, 2007

• #14

Honestly don't bother!!!!