DIY: Throttle Body coolant by-pass... - Page 2

caveman74 · 03-09-2007, 04:42 PM

Quote:

Originally Posted by reaper702

am i the only one that got lost with that diy?

Yea, I see where it comes off. But dont know where the rest goes? I think the 3rd pic is missing?

mO 64 StAnG 06 · 03-09-2007, 04:52 PM

Yeah I didn't understand with the pic's posted but It can't be that difficult.

Basically all you are doing is removing the two hoses from the TB that both hook up back to the engine. Now since you don't want it to circulate through the TB you will need to connect a hose to the two ports on the engine to keep the coolant circulating. Easy enough, I just haven't done it yet because I don't feel like messing with the CAI... It was a bitch enough the first time, im not sure if I want seconths.

***Zeuceone*** · 03-09-2007, 05:18 PM

if you dont have a CAI this DIY does not quiet look familiar to you. if you have the stock intake its a lot different. ill try to post the pics for a stock intake bypass.

caveman74 · 03-10-2007, 02:07 AM

I got a SR, but something is missin. Like the 3rd pic

***Zeuceone*** · 03-10-2007, 02:01 PM

do you remember when you had the stock intake and there was some metal tubing that was there.

mO 64 StAnG 06 · 03-10-2007, 02:52 PM

Just did this on my R18. Only took me 3 min. at the most and I re-used all the stock hose's.

Took it for a quick spin and noticed my intake at NOT is cooler than it used to be.

Great and easy mod. Can't really tell a difference but im sure my engine can.

undrgnd · 03-11-2007, 09:04 PM

No, you can't tell any difference, and your engine can't tell any difference either, as far as power is concerned. I did this mod to a SpecV and a 350Z, and there is absolutely NO benefit to a street-driven vehicle. I returned both back to stock eventually. If you encounter cold, damp weather, there is a good chance your TB will ice over and your Civic will buck like a mule. Your gas mileage and emissions will suffer either way - a cold charge is not conducive to efficiency. I saw enough objective evidence to convince me that this is one of the most pointless things you can do to your engine. There is simply no upside to it for a street-driven vehicle. But yes, it's very easy.

caveman74 · 03-14-2007, 11:18 PM

I did this to my car and the jerkyness in the morning has somewhat gone away. I feel a "little more power " but not to overwhelming. I'll use it for now

undrgnd · 03-14-2007, 11:38 PM

Quote:

Originally Posted by caveman74

I did this to my car and the jerkyness in the morning has somewhat gone away. I feel a "little more power " but not to overwhelming. I'll use it for now

OMG, the things people say even when the whole world may hear it. I am speechless!

***fiji06si13*** · 03-18-2007, 01:09 PM

Noice Dude!

dsg2003gt · 03-29-2007, 02:16 AM

Mustangs made for the last 15+ years dont have coolant circulating around the TB and it doesnt cause any problems, so it is weird that they even have this on these cars.

Skylinegtr06 · 03-29-2007, 02:24 AM

Wow not letting the coolant recirculate? Say hello to cracked engine block

reaper702 · 03-29-2007, 02:28 AM

Quote:

Originally Posted by Skylinegtr06

Wow not letting the coolant recirculate? Say hello to cracked engine block

it is still recirculating through the engine just not through the TB.

Htuner34 · 03-31-2007, 12:18 AM

nice!

TRY2HNG · 04-09-2007, 11:57 PM

Ive done this mod on several "summer only" cars and never had a problem. I would challenge anyone who thinks this mod is useless. By lowering the air intake charge HP gains are small but typical. If I am wrong, why does Hondata make a intake manifold gasket to reduce air intake temps, and then post Dyno graphs to show gains! Why is SKunk2 developing composite intake manifolds and fuel rails to reduce intake temps? The air that travels past the intake manifold goes through the TB first and is being "heated" by coolant before it reaches the engine. Reducing heat at the TB is just as important as anywhere after. Any turbo owner who ever used a intercooler knows what im talking about here. Just because a mod is Free dont spank it before you try it..

blanz · 04-10-2007, 07:30 PM

Quote:

Originally Posted by TRY2HNG

Ive done this mod on several "summer only" cars and never had a problem. I would challenge anyone who thinks this mod is useless. By lowering the air intake charge HP gains are small but typical. If I am wrong, why does Hondata make a intake manifold gasket to reduce air intake temps, and then post Dyno graphs to show gains! Why is SKunk2 developing composite intake manifolds and fuel rails to reduce intake temps? The air that travels past the intake manifold goes through the TB first and is being "heated" by coolant before it reaches the engine. Reducing heat at the TB is just as important as anywhere after. Any turbo owner who ever used a intercooler knows what im talking about here. Just because a mod is Free dont spank it before you try it..

Finally, somebody with some REAL, factual, input to this subject. I also concurr with all information stated above.
The TB gasket that everone is buying is worthless without the bypass mod. The laws of thermodynamics cannot be altered by some sale hype.

abs0lutexer0 · 04-30-2007, 06:10 PM

I followed this DIY, and I did the TB Bypass and the P2R TB gasket mod yesterday. Last night I test drove the car for 2 miles and it drove fine. This morning I took it to work (23 miles) and it drove fine. But my car died on me this afternoon when I tried to go out for lunch. (The car starts and it jerks when it idles. When I try driving it, it would jerk even more. Then I tried throttling it hard, but it wouldn't help, and the engine shuts down. One more thing... there was no CEL!!!)

So let me tell you how I did the install and please tell me whether I did it correctly or not.

I removed the two hoses from the bottom of the T/B and flushed the coolant out of the T/B. The only thing I did differently was that I didn't buy a brand new 5/16'' hose. I reused the hose that connects the upper opening of the T/B to the top side of the engine. I left the hose on the top side of the engine (where the yellow arrow is pointing at in the first picture) and reconnected it to (where the yellow arrow is pointing at in the second picture... I'm not talking about the tranny vent).

Lastly I closed off the openings of the throttle body by putting two 5/16'' vacuum caps over where the 2 arrows are pointing to in the picture below.

I did not reset the ecu after the install. All the fluids are topped. I checked everything... the T/B sensor is connected to the T/B and MAF sensor is connected to the cold air intake. I checked the battery... it's good. My only option right now is to reset the ecu. If that doesn't work, then I'll have to get rid of the T/B bypass mod and put it back to stock (which would be a PITA, because my car is currently sitting in the company parking lot and the sun is going down in 4 hours).

Please let me know your input. Hope someone reads this within the next hour or so... before the sun goes down in the west. I don't want to work on my car in the dark in the company parking lot. Thanks for your help!

abs0lutexer0 · 04-30-2007, 06:41 PM

Anyone?? Bump..

healtoc · 04-30-2007, 06:51 PM

did anyone use any clamps on the plugs to be safe like i did?
How long have you all been using it? Anyone have a prob so far?

Raging · 04-30-2007, 06:52 PM

Looking at this photo there appears to be a sensor on the right side (in this image) connecting to the throttle body.. I'm guessing this sensor may not be reading any coolant temps and this might be effecting your performance... (I do realize that it more than likely reads your A/F mixtures but perhaps also reads the coolant to the TB too)..Just a guess, I don't know for sure what that thing is reading. I would put it back though!! That's just me though...

LinkBacks (?) LinkBack to this Thread: http://www.8thcivic.com/forums/engine/25348-diy-throttle-body-coolant-pass.html
Posted By	For	Type	Date
Throttlebody coolant Bypass mod - Page 2 - 8th Generation Honda Civic Forum	This thread	Refback	02-19-2008 09:19 AM
DIY: Throttle Body coolant by-pass... - 8th Generation Honda Civic Forum	This thread	Refback	02-13-2008 02:20 PM
TB spacer - ClubSi	This thread	Refback	01-05-2008 02:44 PM
DIY: Throttle Body coolant by-pass... - Page 2 - 8th Generation Honda Civic Forum	This thread	Refback	12-27-2007 10:23 PM

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03-09-2007, 04:52 PM	#22 (permalink)
mO 64 StAnG 06 Senior Member Join Date: Jan 2007 Location: Wylie, Texas Age: 20 Posts: 3,011 iTrader: 0 / 0%	Yeah I didn't understand with the pic's posted but It can't be that difficult. Basically all you are doing is removing the two hoses from the TB that both hook up back to the engine. Now since you don't want it to circulate through the TB you will need to connect a hose to the two ports on the engine to keep the coolant circulating. Easy enough, I just haven't done it yet because I don't feel like messing with the CAI... It was a bitch enough the first time, im not sure if I want seconths.

03-09-2007, 05:18 PM	#23 (permalink)
*Zeuceone* Kill Your Self Krew Join Date: Nov 2006 Location: Killa Cali. Posts: 52,390 iTrader: 25 / 100%	if you dont have a CAI this DIY does not quiet look familiar to you. if you have the stock intake its a lot different. ill try to post the pics for a stock intake bypass.

03-10-2007, 02:07 AM	#24 (permalink)
caveman74 Senior Member Member Join Date: Jul 2006 Location: Woodstock, Ga Posts: 2,384 Kevin iTrader: 19 / 100%	I got a SR, but something is missin. Like the 3rd pic

03-10-2007, 02:01 PM	#25 (permalink)
*Zeuceone* Kill Your Self Krew Join Date: Nov 2006 Location: Killa Cali. Posts: 52,390 iTrader: 25 / 100%	do you remember when you had the stock intake and there was some metal tubing that was there.

03-10-2007, 02:52 PM	#26 (permalink)
mO 64 StAnG 06 Senior Member Join Date: Jan 2007 Location: Wylie, Texas Age: 20 Posts: 3,011 iTrader: 0 / 0%	Just did this on my R18. Only took me 3 min. at the most and I re-used all the stock hose's. Took it for a quick spin and noticed my intake at NOT is cooler than it used to be. Great and easy mod. Can't really tell a difference but im sure my engine can.

03-11-2007, 09:04 PM	#27 (permalink)
undrgnd Senior Member Join Date: Feb 2007 Location: USA Posts: 166 iTrader: 0 / 0%	No, you can't tell any difference, and your engine can't tell any difference either, as far as power is concerned. I did this mod to a SpecV and a 350Z, and there is absolutely NO benefit to a street-driven vehicle. I returned both back to stock eventually. If you encounter cold, damp weather, there is a good chance your TB will ice over and your Civic will buck like a mule. Your gas mileage and emissions will suffer either way - a cold charge is not conducive to efficiency. I saw enough objective evidence to convince me that this is one of the most pointless things you can do to your engine. There is simply no upside to it for a street-driven vehicle. But yes, it's very easy.

03-14-2007, 11:18 PM	#28 (permalink)
caveman74 Senior Member Member Join Date: Jul 2006 Location: Woodstock, Ga Posts: 2,384 Kevin iTrader: 19 / 100%	I did this to my car and the jerkyness in the morning has somewhat gone away. I feel a "little more power " but not to overwhelming. I'll use it for now

03-18-2007, 01:09 PM	#30 (permalink)
*fiji06si13* VIP Member Join Date: May 2006 Location: Jerz Age: 28 Posts: 9,460 Justin aka Mr. JT iTrader: 3 / 100%	Noice Dude!

03-29-2007, 02:16 AM	#31 (permalink)
dsg2003gt Senior Member Join Date: Feb 2007 Location: Central and South, FL Posts: 110 iTrader: 0 / 0%	Mustangs made for the last 15+ years dont have coolant circulating around the TB and it doesnt cause any problems, so it is weird that they even have this on these cars.

03-29-2007, 02:24 AM	#32 (permalink)
Skylinegtr06 Senior Member Join Date: Jul 2006 Location: Chula Vista SD Age: 18 Posts: 5,745 edwyn(male) iTrader: 1 / 100%	Wow not letting the coolant recirculate? Say hello to cracked engine block

03-31-2007, 12:18 AM	#34 (permalink)
Htuner34 Senior Member Join Date: Jan 2006 Location: Arkansas Age: 24 Posts: 1,891 Phil iTrader: 7 / 100%	nice!

04-09-2007, 11:57 PM	#35 (permalink)
TRY2HNG Senior Member Join Date: Oct 2006 Location: Southern Maine Coast Age: 35 Posts: 123 iTrader: 1 / 100%	Ive done this mod on several "summer only" cars and never had a problem. I would challenge anyone who thinks this mod is useless. By lowering the air intake charge HP gains are small but typical. If I am wrong, why does Hondata make a intake manifold gasket to reduce air intake temps, and then post Dyno graphs to show gains! Why is SKunk2 developing composite intake manifolds and fuel rails to reduce intake temps? The air that travels past the intake manifold goes through the TB first and is being "heated" by coolant before it reaches the engine. Reducing heat at the TB is just as important as anywhere after. Any turbo owner who ever used a intercooler knows what im talking about here. Just because a mod is Free dont spank it before you try it..

04-30-2007, 06:10 PM	#37 (permalink)
abs0lutexer0 Senior Member Join Date: Jan 2007 Location: Bay Area, CA Posts: 1,412 iTrader: 7 / 100%	I followed this DIY, and I did the TB Bypass and the P2R TB gasket mod yesterday. Last night I test drove the car for 2 miles and it drove fine. This morning I took it to work (23 miles) and it drove fine. But my car died on me this afternoon when I tried to go out for lunch. (The car starts and it jerks when it idles. When I try driving it, it would jerk even more. Then I tried throttling it hard, but it wouldn't help, and the engine shuts down. One more thing... there was no CEL!!!) So let me tell you how I did the install and please tell me whether I did it correctly or not. I removed the two hoses from the bottom of the T/B and flushed the coolant out of the T/B. The only thing I did differently was that I didn't buy a brand new 5/16'' hose. I reused the hose that connects the upper opening of the T/B to the top side of the engine. I left the hose on the top side of the engine (where the yellow arrow is pointing at in the first picture) and reconnected it to (where the yellow arrow is pointing at in the second picture... I'm not talking about the tranny vent). Lastly I closed off the openings of the throttle body by putting two 5/16'' vacuum caps over where the 2 arrows are pointing to in the picture below. I did not reset the ecu after the install. All the fluids are topped. I checked everything... the T/B sensor is connected to the T/B and MAF sensor is connected to the cold air intake. I checked the battery... it's good. My only option right now is to reset the ecu. If that doesn't work, then I'll have to get rid of the T/B bypass mod and put it back to stock (which would be a PITA, because my car is currently sitting in the company parking lot and the sun is going down in 4 hours). Please let me know your input. Hope someone reads this within the next hour or so... before the sun goes down in the west. I don't want to work on my car in the dark in the company parking lot. Thanks for your help!

04-30-2007, 06:41 PM	#38 (permalink)
abs0lutexer0 Senior Member Join Date: Jan 2007 Location: Bay Area, CA Posts: 1,412 iTrader: 7 / 100%	Anyone?? Bump..

04-30-2007, 06:51 PM	#39 (permalink)
healtoc Senior Member Join Date: Nov 2006 Location: SoCal Age: 22 Posts: 169 iTrader: 2 / 100%	did anyone use any clamps on the plugs to be safe like i did? How long have you all been using it? Anyone have a prob so far?

04-30-2007, 06:52 PM	#40 (permalink)
Raging Senior Member Join Date: Dec 2006 Location: Robins AFB, GA Posts: 405 iTrader: 0 / 0%	Looking at this photo there appears to be a sensor on the right side (in this image) connecting to the throttle body.. I'm guessing this sensor may not be reading any coolant temps and this might be effecting your performance... (I do realize that it more than likely reads your A/F mixtures but perhaps also reads the coolant to the TB too)..Just a guess, I don't know for sure what that thing is reading. I would put it back though!! That's just me though...