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#1 (permalink)
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Senior Member
Join Date: Aug 2006
Location: Jeddah
Posts: 143
Sparda
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Throttle Body Coolant Bypass On ((R18))
hi guys ...
i'v been think'n about this trick thay call it Throttle Body Coolant Bypass i think most of you guys know what it is so i learned this trick yesterday and i have a DIY guide too ((not for the r18)) but it will help and iam ready to do it ... my question's are :::.. 1- is this trick going to damage any thing in my car ????? any thing at all ??? 2- did it work on any of your civic's ??? any deffrence ?? 3- did you feel any thing deffrent even on any other car ?? 4- if its going to help ... why it didn't came like this from the factory ??? 5- any thing you want to say about this trick ??? this topic is on other forums too ((by meee))
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#5 (permalink) |
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Senior Member
Join Date: Sep 2006
Location: Massachusetts
Posts: 133
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1. it might freeze up your throttle body in cold climates.
2. i did it on my si. no power difference at all. 3. i've only done it to the si. 4. i'm guessing they run coolant through the throttle body so it won't freeze up in the winter times in some parts of the country. you can always reverse it when winter time comes though. 5. it's harder to do on an r18 than an si. i was going to do it to my friend's r18, but it looked like a lot of work. the bypass on the si takes like 10-15 mins. |
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#6 (permalink) |
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Senior Member
Join Date: Jan 2007
Location: Wylie, Texas
Age: 23
Posts: 3,983
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Unless you still have the stock intake system in the R18, it shouldn't take more than 5 minutes.
I was able to re-route the existing line and bypass it without spending a dime. I didn't notice any difference though, but im sure it made on on paper no matter how minute. |
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#7 (permalink) |
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Senior Member
Join Date: Jun 2007
Location: Irvine, CA
Posts: 146
Michael Bringle
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I did this on my Supra, didn't actually bypass but had those passages welded shut on the intake and return pipe. Biggest benifit was that now I had less hoses to break and taking things apart was _much_ easier. It took forever just to get those hoses off the TB, and then you have coolant everywere. Now I can tear down in about 10 minutes to the cams with no mess! With no performance benifits, unless you get similar time saving benifits I would leave it alone.
-Mike 07 SSIP http://www.CygnusX1.net/Civic |
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#9 (permalink) | |
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Senior Member
Join Date: Sep 2007
Posts: 10,046
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Quote:
Or description? Looks like some other lines run to or from the TB as well. Didn't check to see if they were coolant or vacuum. |
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#10 (permalink) |
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Senior Member
Join Date: Jan 2007
Location: Wylie, Texas
Age: 23
Posts: 3,983
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Man, from what I can remember, there are only two lines that go to the TB. Both of which are also connected to the engine. Both of them are coolant lines.
What you want to do is re-route the lines where both TB inlets/outlets are connected together by one hose. And the same for the two inlets/outlets on the engine. Fairly simple. |
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#11 (permalink) |
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Senior Member
Member
Join Date: May 2006
Location: Sunshine State
Posts: 2,243
Artem
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I did this on my 06 R18 before I sold it and bought an Si. It was fairly simple to do for the most part. Every little thing helps, i guess.
I've yet to tackle this project on the family's "beater" 07 auto EX. |
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#13 (permalink) | |
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Senior Member
Join Date: Sep 2008
Location: Northside, Ga
Posts: 1,023
Cause this is where it's at
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Quote:
Idk what DIY your using but when you connect the new coolant lines, CLAMP{ THE CRAP OUT OF THEM! |
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#14 (permalink) | |
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Senior Member
Join Date: Sep 2008
Location: Northside, Ga
Posts: 1,023
Cause this is where it's at
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Quote:
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#16 (permalink) |
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Senior Member
Join Date: Sep 2008
Location: Northside, Ga
Posts: 1,023
Cause this is where it's at
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Yes I made one. look up all posts by me and go to the DIY. Yes 10-15 hp. My buddy that works at MTI told me how to do it, he is currently doing a 2jz swap out on his supra. < just to kinda give you some reference on where my info came from.
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#17 (permalink) |
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Senior Member
Join Date: Oct 2008
Location: Houston
Posts: 277
Dustin R18 crew member# 357
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Okay i live in texas so i should be super safe with this mod, BUT it does get down to 20 maybe once or twice a winter, is that even enough to worry at all about a frozen throttle body?
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#19 (permalink) |
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Senior Member
Join Date: Oct 2008
Location: Houston
Posts: 277
Dustin R18 crew member# 357
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dude im looking at your diy, and it seems like you did alot of things that arnt necessary? am i correct? you were just being super safe?
and about the little filter, if you have an aftermarket intake you've already taken that thing off and its now attached to your new intake ex. my injen CAI So i wouldnt need to do that step at all. But would i be able to just use the original long hose and connect it to the other engine port? then did you cap off the two throttle body ports? Do you know what size caps i would need for those? |
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| Posted By | For | Type | Date | |
| Your Mods To 2006-2011 FD Civics | This thread | Refback | 08-16-2011 08:11 AM | |
| DIY: Throttle Body coolant by-pass... - Page 2 - 8th Generation Honda Civic Forum | This thread | Refback | 01-23-2008 07:44 AM | |
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