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Just did throttle body coolant bypass

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Old Aug 3, 2009 | 07:01 PM
  #1  
car852's Avatar
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Just did throttle body coolant bypass

i figured itd help in this 80-100 degree weather. (70 at midnight. lol)

I gotta say, it lowered the temp of the throttle body significantly!
i didnt notice anything when i got up to operating temp.

but thats the point! hahaha. it was running as if i was in regular weather! usually my ralliart will get real sluggish from the heatsoak of my SRI, combined with the 90+ degree weather.

to anyone that lives in the heat. i say DO IT! youve got nothing to lose!

just go buy some 3/8" copper or brass tubing and connect the coolant hoses that go to the throttle body.

i almost wanna do what someone mentioned in a thread i read somewhere. he was saying, "what if we hooked up a small transmission cooler or something to actually COOL the throttle body." (the exact opposite of what the throttle body coolant lines were there for.

I figure, in the extreme cold, the throttle body would need to heat up, to function properly. but thats in freezing temps, right? so why not cool it down in hotter places?



but then i guess this wouldnt really benefit us currency-wise lol. maybe if someones got extra parts and wants to try it for me? :P





anyways im just kinda rambling now. i got bored so i decided to do the bypass.
so far, i like it.
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Old Aug 3, 2009 | 07:50 PM
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No need to get the adapter. You can just loop the lower line back into the head & remove the upper line. Free mod worth doing in my opinion.
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Old Aug 3, 2009 | 08:22 PM
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Can you elaborate on that a little bit shunderwunder?

I live in the high desert and its hot as hell half the year.
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Old Aug 3, 2009 | 08:35 PM
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Could you take a picture and show how its done? This is something i'd be interested in doing
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Old Aug 3, 2009 | 08:47 PM
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I just realized that this is a Ralliart thread. My car is an Evo. I'd imagine that the setup is the same though. There are 2 coolant hoses going to the throttle body. Disconnect both of them from the TB. Then remove one hose completely. Route the other hose back to wherever you removed the first hose from on the engine side.
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Old Aug 3, 2009 | 09:40 PM
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i could have done it without the connector, but it made it a little easier for my fat hands. XD haha.

i just got the 2" copper piping from osh, they just let me have it for free. so it was still a free mod for me. :P
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Old Aug 3, 2009 | 10:13 PM
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Pics would be helpful lol
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Old Aug 3, 2009 | 11:31 PM
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car852's Avatar
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Originally Posted by Christoforo
Pics would be helpful lol
if you pop the hood, and remove all the tubing leading up to the intake manifold, you'll see the throttle body.

there are 3 hoses running to it. two of them are the throttle body coolant. which are both leading back to the engine.

one leads away from everything. its pretty obvious.

all you gotta do is somehow make the two hoses that lead back to the engine, connect. haha
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Old Aug 5, 2009 | 05:17 PM
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Dumb question probably on this subject but if you loop the hose back to the block do you need to plug the holes leading into the throttle body?
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Old Aug 5, 2009 | 07:32 PM
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i didnt, but its not hard. you can either plug them or just get a short tube and loop the throttle body to itself.
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Old May 31, 2013 | 08:14 AM
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What are the pros and cons with doing this? What is the cleanest way of doing this? By that I mean by cleaning up the mess in the engine bay and making it look professionally done!
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Old Jul 3, 2013 | 04:57 AM
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Originally Posted by 17579EVO9MR
What are the pros and cons with doing this? What is the cleanest way of doing this? By that I mean by cleaning up the mess in the engine bay and making it look professionally done!
Bump this question
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Old Jul 3, 2013 | 06:00 AM
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Originally Posted by rzrxn
Bump this question
don't bother, you'll need coolant through the throttle body during the winter anyway, and bypassing it won't yield any noticeable gain...
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Old Jul 3, 2013 | 11:11 AM
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Originally Posted by CrAnSwIcK
don't bother, you'll need coolant through the throttle body during the winter anyway, and bypassing it won't yield any noticeable gain...
thanks man! i had this feeling that i would get the answer from you lol
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