LMAO TBB

[Stanger86]

TBB = Throttle Body Bypass

Somebody is actually selling a " Throttle Body Bypass Kit " on good ol EBAY. THey even state in the ad that all it does is bypass where the coolant runs into the throttle body to decrease intake temperatures. LMFAO Why would somebody actually buy a kit to do this. The pic shows like a little plastic tube and some clamps.

- Chad

[Wildman_302]

funniest thing if someone buys it and doesent block off the egr passage between the upper and lower intake, they will burn up the throttle body, since the so called hot water actually cools it...lol

[mfpmax]

People sell them all the time...

When you could go to google...type it in, and get a how too for almost any vehicle.

[Byrdman]

funniest thing if someone buys it and doesent block off the egr passage between the upper and lower intake, they will burn up the throttle body, since the so called hot water actually cools it...lol

:lol: :lol: :lol: :lol:

That's pretty funny. You're not going to "burn up the throttle body."

The actual purpose of those lines has been the subject of endless internet debates, but regardless of that, you won't harm the throttle body by bypassing them.

[cool86]

Yeah it has been a debate for years about it. funny thing is that the cobra intake still has egr flow without the coolant lines going to the intake. it doesnt have an egr spacer on it like stock. most would already know this.
My coolant lines are plugged off at the coolant rails on the lower intake

[Wildman_302]

funniest thing if someone buys it and doesent block off the egr passage between the upper and lower intake, they will burn up the throttle body, since the so called hot water actually cools it...lol

:lol: :lol: :lol: :lol:

That's pretty funny. You're not going to "burn up the throttle body."

The actual purpose of those lines has been the subject of endless internet debates, but regardless of that, you won't harm the throttle body by bypassing them.

ok so maybe not burn it up, but it has been proven that you hurt the performance by disconnecting them. your intake charge will actually be higher, unless you block off the egr in your intake. for actual proof in black in white , look in mustang performance handbook, and there has been quite a few articles in MM&FF magazine. also if that is not enuff proff, take yourself to the dyno and make a few pulls your self. I'm not trying to flame anyone but that has to be one of the best Myth horsepower helper i have ever heard, like disconnecting the smog pump or all the emmissions. since they dont work at idle or under full throttle. the only emission related item i see that cuts power would be cats. Sorry if i offended anyone but this has been proven as to hurt the performance.

[jazzcat2001]

i thought you could get some horsepower from blocking that thing off

[Byrdman]

ok so maybe not burn it up, but it has been proven that you hurt the performance by disconnecting them. your intake charge will actually be higher, unless you block off the egr in your intake. for actual proof in black in white , look in mustang performance handbook, and there has been quite a few articles in MM&FF magazine. also if that is not enuff proff, take yourself to the dyno and make a few pulls your self. I'm not trying to flame anyone but that has to be one of the best Myth horsepower helper i have ever heard, like disconnecting the smog pump or all the emmissions. since they dont work at idle or under full throttle. the only emission related item i see that cuts power would be cats. Sorry if i offended anyone but this has been proven as to hurt the performance.

Don't get all worked up man. You didn't offend anybody - on the contrary, it made for a good laugh.

Also, not to fuel your fire, but if what you're saying is true, then why doesn't the Cobra intake use those lines?

Basically, those coolant lines were just a dumb idea that never really helped or hurt anything. So Ford eventually ditched them altogether.

And sorry, but I can't do any coolant line dyno runs for you since my motor hasn't had any coolant lines or smog equipment for years:

http://members.cox.net/fastford50/engine/motorholley.jpg

[white1983GT]

Ok so the parasitic drag from the smog pump doesn't decrease power??

Gotta disagree on that one,... as for coolant lines to the throttle body, don't know since carbs don't got em, although I don't remember a MM&FF dyno article, I do remember one mag, not sure which that basically said Ford took it off the Cobra, so why not take it off the GT.

[Wildman_302]

there was a article in mm&ff on free horsepower, and this topic was covered. and as far as the smog pump drag, it is so minimal you wouldnt notice the power loss, it may be 1/2 of 1hp....as a serious note i have ran across quite a few egr spacers with pit holes in them after disconnecting the water lines. now if you remove the plate altogether like byrdman, then that would be a better solution. no lets talk about power loss. as far as accessories, powerstearing....yes, a/c yes......alternator, yes- but if you put a switch to interupt the field then you can switch it off while dragracing. Now i am not set in my ways and am always wanting to learn something new so if someone can show me concrete eveidence i would like to see it so i will not go onto give wrong advice on this subject.

[Byrdman]

The alternator consumes at most 1-2 hp.

The a/c, when off, consumes nothing.

The smog pump doesn't turn off or on. When it's turning, it's pumping, so it does consume some hp. Probably no more than 2 or 3 hp though.

[Wildman_302]

i agree there isn't much of a drain like most people think with the smog pump. personally i dont have a smog pump on mine either, ad for the egr spacer i was thinking of removing mine when i get my new throttle body. Since none of my egr is active. As far as turning off , put you a switch on the alternator field wire and you can shut it down while dragracing.

[jazzcat2001]

The alternator consumes at most 1-2 hp.

The a/c, when off, consumes nothing.

The smog pump doesn't turn off or on. When it's turning, it's pumping, so it does consume some hp. Probably no more than 2 or 3 hp though.

the ac when on consumes nothing if you are at full throttle...there is a shut off switch in it..when you go balls out you can leave the ac on and it shuts it off until you take your foot off the gas..it will still blow air and it will still be cold..just not ac

[white1983GT]

I'm not trying to be picky or anything, but I checked my MM&FF archive, and they estimate putting a short belt on and not turning the air pump (smog) and steering pump to be worth 10-15 horsepower.
It goes without saying this is probaly a healthy smod pump, mine was about to seize when I removed it, so I picked up a considerable boost, and lost about 10 lbs off the front end.
Heres the article I got this from:
http://www.musclemustangfastfords.com/tech/0301_MMFFcatch22/index.html

[Byrdman]

The power steering is responsible for most of that 10-15 hp gain.

[white1983GT]

umm, ok this wonder device takes almost no power from my engine, and makes daisies come out of the tailpipes, I'll go hook mine back up right now.

[Byrdman]

umm, ok this wonder device takes almost no power from my engine, and makes daisies come out of the tailpipes, I'll go hook mine back up right now.

Whoah there spanky. Don't get carried away. :lol:

IMO, the smog pump is useless. Mine has been off for a long time. But, it still doesn't cost you that much power - the power steering pump is a much larger drag on the motor.

Removing the smog pump is easily worth it though - less weight, cleaner engine compartment, and a few free hp.

[white1983GT]

:o spanky bows out.... :D

[Wildman_302]

i wasent trying to get a big debate going, i was just saying that it will not be a noticable power gain bypassing the smog'(unless yours is about to lock up), you will lose the noise. Around town you always hear people telling the not so mechanically inclined to do all this stuff , and they will gain all kinds of horsepower. its all myths of major gains. you may gain but not as much as people put off to be. Same is with a cam change alone, you will gain some, but without the correct valve springs , intake , and exhaust (heads too) you are not gaining half of what you can. I am no master mechanic, but i am ASE certified. I am a mechanic for a living and i have found a few things that work and dont.

[RACECAP97]

So what do you work on for a living? By the way if you are ASE certified then you and I both know that that is nothing to brag about. Not hard to get at all. Anyway, I would have to agree with you and at the same time dissagree with you about the power loss when removing the smog crap. Mainly the pump. I would have to say that it all depends on what mods you have done. If you have something pushing say 500hp to the wheels that is still sporting the smog pump you will most likely gain more by taking it off then you would if the motor was stock. Basically the same as building a motor capable of 1000hp and leaving stock heads on it. After switching the heads it would be a HUGE gain. While on a stock engine the aftermarket heads will be less of a gain. This is just the way I see things, I haven't got anything to back it up, just makes perfect sense to me. Anything that is driven by a belt is robbing hp from the engine no matter if its the a/c on or off, as minimal as the hp loss is its still there.

the ac when on consumes nothing if you are at full throttle...there is a shut off switch in it..when you go balls out you can leave the ac on and it shuts it off until you take your foot off the gas..it will still blow air and it will still be cold..just not ac

I've never heard of that. Possibly only on certain brands of cars? :?

[Wildman_302]

i work for an automotive repair shop,and we do alot of mustang performance stuff, and alot of chevy stuff too (its a living) and i know its nothing to brag about as being ASE certified, but i was stating that to let some people know that i have a background in mechanics. I was also a diesal mechanic for 7 years also. I agree with you , but my point being for the average joe who does not have a healthy project fund. these things all together will maybe give you 10 - 15 HP if you are lucky, not a major gain. as for the smog pump its a waste but you are not gonna gain 15 hp just losing it.

[RACECAP97]

Diesels, ewwwwwww. :? My brother did that crap for awhile. You are correct, for an engine that is pretty much stock you won't see much out of losing something like the smog pump. I know it doesn't have much power to begin with but I took the smog pump off my 86 2.3 because it was locked up and it was a few days before I got my new one. Anyway while driving it the two days in between I didn't notice any difference at all. You would think if any motor could benifit from it my 88hp 2.3 would have. Nothing though!!! I am still interested in the a/c kicking off at full throttle though. What cars is it that do that? I work on VW's and Audi's sometimes for a living and i've never heard of that on either of those cars. I guess i've never tried it though.

[madmike8]

Most cars have a WOT A/C Bypass switch... which basically kicks the clutch out... It's there for freeing up power while your passing other cars...

[Stanger86]

Damn I had no idea that this was going to turn into a 2 page debate. I just found something funny and wanted to point it out. LMAO You guys need to sit back, kick up your feet, take deep breaths, and relax.

- Chad

[RACECAP97]

LMAO You guys need to sit back, kick up your feet, take deep breaths, and relax.

If we did that then how would we ever learn anything new from the other users? Nobody is getting fired up here. :D

[Wildman_302]

Byrdman, today my friend brought over his 90 coupe , he ordered a new cobra intake and we installed it, low and behold guess what is made into it?.... the thing does have the coolant lines in it, the one on the front is positioned low and the one on the back is high. I thought i would share this with you since you posted that it does not have them. the way it is made different is that the egr plate is made into it.

[Byrdman]

Byrdman, today my friend brought over his 90 coupe , he ordered a new cobra intake and we installed it, low and behold guess what is made into it?.... the thing does have the coolant lines in it, the one on the front is positioned low and the one on the back is high. I thought i would share this with you since you posted that it does not have them. the way it is made different is that the egr plate is made into it.

Why don't you go ahead and hook up your coolant line to that port in the front. When your intake fills up with water don't blame me.

:lol: :lol: :lol: :lol:

It's a vacuum port genius.

Are you done now? :wink:

[Wildman_302]

they are hooked up,and working just fine, and i'm not a genius, smart ass,i never put on like i was one,i was sharing some info i found out, but you seem to know it all, so i guess that i should have kept it to my self.You dont have to trake my word for it, call ford, hell i did and they thought it was funny that someone told me that water does not flow through it. matter of fact call GENE EVENS FORD its in georgia, and they are a bigtime FRPP supplyer, or try Anderson motosporst. I posted you that information because you gave some misled info, and you seemed to take it personal. I did nto mock you or make a personal attack on you. So i would appriciate it if you would treat me with the respect as i gave you and not be a smart ass when you are proved wrong.

[Byrdman]

http://members.cox.net/fastford50/engine/mm-stb.jpg


See the port plugged by a rubber nipple on the front of the intake neck? That's the only port on the front of a Cobra intake. It's a vacuum port.

BTW, that picture is of the Cobra intake I had over seven years ago.