Throttle body coolant line question

[ae86ma70]

What are the disadvantages of bypassing the coolant line at the TB? (Stock TB, Stock intake manifold). Soon to be running speed density, if it makes a difference.

 

[ae86ma70]

Still looking for info on this. Any help appreciated.

 

[ae86ma70]

In a nutshell: I'm converting to speed density and want to know what will happen if I bypass the coolant lines at the throttle body. I'm guessing that cold idle will be affected, but by how much?

The answer, per JetJock-

Cold idle will not be affected. Nor will speed density matter. Go ahead and bypass.

Thanks JetJock.

 

[mkiii222]

Jdub explains it all: http://www.supramania.com/forums/showthread.php?108721-Coolant-line-question...&p=1432468#post1432468

 

[ae86ma70]

Jdub explains it all: http://www.supramania.com/forums/showthread.php?108721-Coolant-line-question...&p=1432468#post1432468

Not sure why I didn't find that thread first. What causes this (intake icing) to happen? IC charge temperatures? That can't be it, otherwise the lines wouldn't be necessary on the NA motors.

I am thinking of bypassing these connections. I live in Atlanta. Sometimes it gets frosty here, like today. I'm not looking to argue with those more knowledgeable than I, but will the bypass pose a problem this far South?

 

[jetjock]

What causes it is pressure drop due to Bernoulli's Principle. Think venturi. Although there's little of that in throttle bodies used with EFI icing is still possible under certain conditions. Heating mainly aids in fuel vaporization when cold. The ISCV is heated because it's the source of bypass air at idle. That said you're unlikely to encounter problems. Fwiw those lines are a good place to install coolant filtration...