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Throttle body coolant bypass? Needed or not

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Old 11-07-2012, 08:18 PM
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Question Throttle body coolant bypass? Needed or not

I DID search and couldnt find any direct answers, so any help would be greatly appreciated.

I installed a throttle body spacer,and a plenum spacer and a z tube.Someone mentioned i might need a throttle body coolant bypass valve?

Could any of you help me decide if i need or should get a throttle body coolant bypass valve and or tell me what its use really is? I understand to an extent,but the pros and cons?

If this is something important, maybe it'd be worth sticky-ing?
Old 11-07-2012, 08:41 PM
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Our VQ motors love cool, anything we can do to keep it that way only makes our G35s happier. I installed the bypass 6 years ago while installing my 1/2" spacer shutting off any coolant running thru my intake....never turned it back on. Living in CA and having a garage I never found the need to run coolant thru my intake even in winter.
Gary
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Old 11-07-2012, 08:50 PM
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If you live in a state where your throttle body would freeze, just leave it the way it is so hot coolant prevents it from freezing. If you live in a climate like in Cali, you can install the bypass valve to stop the coolant.
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Old 11-07-2012, 11:30 PM
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Quote:
Originally Posted by gary c View Post
Our VQ motors love cool, anything we can do to keep it that way only makes our G35s happier. I installed the bypass 6 years ago while installing my 1/2" spacer shutting off any coolant running thru my intake....never turned it back on. Living in CA and having a garage I never found the need to run coolant thru my intake even in winter.
Gary
Its astonishing how fast and often yopuu respond to my posts, well posts in general,and your input is always helpful,and right.

I live in Delaware, so it fluctuates, winters can be in the 20's and summers in the low 100's

So what would you personally do?
Old 11-07-2012, 11:31 PM
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Originally Posted by Silencer_0 View Post
If you live in a state where your throttle body would freeze, just leave it the way it is so hot coolant prevents it from freezing. If you live in a climate like in Cali, you can install the bypass valve to stop the coolant.
Thank you as well for the input man. As i stated to Gary, a few months of the year at night it does get below freezing. I'm just not to sure exactly what it does, and since i was told its used to keep heat down,i obviously got worried because i know a hot engine (specially ours) can be very risky?
Old 11-07-2012, 11:39 PM
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Is this quick enough? LMAO Get the bypass valve, turn it off during those warm months but I doubt you'll notice a difference. It might take you 15 minutes to install, your choice....Gary
Old 11-08-2012, 01:31 AM
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Is this quick enough? LMAO Get the bypass valve, turn it off during those warm months but I doubt you'll notice a difference. It might take you 15 minutes to install, your choice....Gary
haha absolutely!

So what exactly does it do in the first place? Its better for cold driving or the opposite?
Old 11-08-2012, 02:23 AM
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Itll be bad to use during the cold weather because then itll freeze since there is no hot coolant running through the engine. Install it but then just turn it on/off during the weather changes
Old 11-08-2012, 02:27 AM
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picture of said part, i want to learn more about this thing
Old 11-08-2012, 03:02 AM
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Quote:
Originally Posted by Hydrazine View Post
Because you live in an area where its warm most of the time, you will actually do well to install it. Your plenum will run a lot cooler with it installed.

By installing it, you can turn the valve to the OFF position, shutting off the hot coolant flow going to the plenum. And this is how it lets your plenum run cooler.
When you live in a warm area, there is no reason to flow hot coolant through it.

Its only when you are driving in really cold weather conditions that you want to open the valve and heat your plenum... So it doesn't get iced up.

I hope this helps.

Tony
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Old 11-08-2012, 10:17 AM
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So by shutting off the coolant during the hot season it wont mess with the car in any way.like it wont build up pressure at the valve and burst?
Old 11-08-2012, 11:02 AM
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My coolant bypass valve/hose has been installed since '06 and shut off without issues. If I lived anywhere but SoCal and didn't keep SLICK in her garage I'd allow fluid thur my manifold during cold months....Gary
Old 11-08-2012, 11:32 AM
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Cool.so the only purpose of that hose is to cool the throttle and pleneum?
Old 11-08-2012, 11:51 AM
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Cool.so the only purpose of that hose is to cool the throttle and pleneum?
Purpose of the bypass valve/hose is to block hot coolant during warm weather since our VQ motors operate better in cool conditions....Gary
Old 11-08-2012, 12:07 PM
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Yea i know that i was saying with no bypasd the hose is there just to keep that stuff from freezing

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34, body, bypass, coolant, coupe, cut, cutoff, diy, flow, g35, helps, intake, pass, plenum, purpose, spacer, throttle, valve, whats
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