Is throttle body coolant bypass worth it???
On The Tree
Joined: Jun 2003
Posts: 150
Likes: 0
Originally Posted by cueball
aircraft have their carbs, and TB. heated because their flying up
there where it is -40* and a lot cooler.
there where it is -40* and a lot cooler.
My opinion, yes it helps. Cooler air is always better. Will you notice the difference, almost definately not. Will you notice if your TB won't open? I bet you would. As for me, I'll do it eventually just to get rid of extra hose connections, but I'm not buying a stupid kit. I'll just get a longer hose and some clamps.
TECH Addict
Joined: Sep 2003
Posts: 2,065
Likes: 0
From: Atlanta, GA
aircrafts cruise at very cold temps (IAT) for long periods of time.
I dunno bout you but im always modulating my car pedal. I don't take the ls1 for road trips, its too f'ing noisy. The 330ci is quite a bit more comfy..
I suppose if you drove across canada or something at 60-70 in the -40 temps without moving the pedal (cruise?) you could ice them open, and then life would suck for a moment
Where does the water go? I'm a noob so explain to me , is it just the TB? Our plastic intakes get no cooling right?
And what are those goofy two metal things that attach to the head under the front of the intake?
I dunno bout you but im always modulating my car pedal. I don't take the ls1 for road trips, its too f'ing noisy. The 330ci is quite a bit more comfy..
I suppose if you drove across canada or something at 60-70 in the -40 temps without moving the pedal (cruise?) you could ice them open, and then life would suck for a moment
Where does the water go? I'm a noob so explain to me , is it just the TB? Our plastic intakes get no cooling right?
And what are those goofy two metal things that attach to the head under the front of the intake?
I didn't touch mine until it started leaking coolant, then I just eliminated the hoses and plugged the holes. I don't know why everybody installs a bypass; that metal tubing is too small to have any bearing on engine cooling. It's much cleaner in the engine bay with out the un-needed plumbing. Also, where I live we have quite a variety of hot and cold weather, and I've had no problems with TB icing so far. I think it's a bigger deal on carbed cars.
TECH Addict
Joined: Jan 2004
Posts: 2,042
Likes: 0
From: Grosse Pointe Woods, MI
Originally Posted by 99-LS1-SS
Like the title says. Has anyone seen real results?
Originally Posted by Cal
I didn't touch mine until it started leaking coolant, then I just eliminated the hoses and plugged the holes. I don't know why everybody installs a bypass; that metal tubing is too small to have any bearing on engine cooling. It's much cleaner in the engine bay with out the un-needed plumbing.
Icing will happen aft of the throttle blade, where
you are expanding air and dropping temp across
the pressure gradient.
I had the carb on my '66 Mustang ice up on the
401 going from Detroit to Buffalo by Canada one
time. Near-freezing fog doesn't take much to turn
to a coat of ice.
Most of the air doesn't actually touch the TB as it
passes, and at WOT it doesn't spend much time
there either. But, it's worth the price of "free".
Especially if you used a non-F-body TB core to
port and the nipples don't fit the lines anyway.
you are expanding air and dropping temp across
the pressure gradient.
I had the carb on my '66 Mustang ice up on the
401 going from Detroit to Buffalo by Canada one
time. Near-freezing fog doesn't take much to turn
to a coat of ice.
Most of the air doesn't actually touch the TB as it
passes, and at WOT it doesn't spend much time
there either. But, it's worth the price of "free".
Especially if you used a non-F-body TB core to
port and the nipples don't fit the lines anyway.
Staging Lane
Joined: Jan 2004
Posts: 65
Likes: 0
From: Annapolis, MD Fmrly Lansing, MI
Originally Posted by samz28
aircrafts cruise at very cold temps (IAT) for long periods of time.
I dunno bout you but im always modulating my car pedal. I don't take the ls1 for road trips, its too f'ing noisy. The 330ci is quite a bit more comfy..
I suppose if you drove across canada or something at 60-70 in the -40 temps without moving the pedal (cruise?) you could ice them open, and then life would suck for a moment
Where does the water go? I'm a noob so explain to me , is it just the TB? Our plastic intakes get no cooling right?
And what are those goofy two metal things that attach to the head under the front of the intake?
I dunno bout you but im always modulating my car pedal. I don't take the ls1 for road trips, its too f'ing noisy. The 330ci is quite a bit more comfy..
I suppose if you drove across canada or something at 60-70 in the -40 temps without moving the pedal (cruise?) you could ice them open, and then life would suck for a moment
Where does the water go? I'm a noob so explain to me , is it just the TB? Our plastic intakes get no cooling right?
And what are those goofy two metal things that attach to the head under the front of the intake?
It is not that the TB sticks (though I agree that would suck). The icing occurs as the air enters the enginebay/air cleaner - it is compressed a little (esp at speed). Then as the air/humidity enters the engine the pressure goes negative, so the air immediately expands. This causes the temperature to drop(look up Bernulli's equation). At that point already cold very moist air can/will freeze. As it does, it gradually closes the intake.
If you were suffering from this, you might never notice. Probably not doing a lot of WOT in -40 degree weather anyway. Initially, SOTP isn't going to tell you. Over time it can get to a point where the engine won't run.
So---You and your buddy take your car on a hunting trip to Alaska. You leave Lansing, MI in the am on a day where the high is -10 degrees. You and your buddy take turns driving and stop only for short refuel stops. The car finally fails somewhere around the Alaska/Canada border, after you haven't seen any signs of civilization in over an hour. How do you thaw it out??? Are you pissed???
SHOULD HAVE LEFT THE TB HEAT ALONE!!!Otherwise.....
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Originally Posted by PurdueWS6
I was just looking through their website and I find this:
http://www.bmrfabrication.com/tb-dyno.htm
i dunno where THEY got their 6.3 hp from.
Mahmood
http://www.bmrfabrication.com/tb-dyno.htm
i dunno where THEY got their 6.3 hp from.
Mahmood
Launching!
Joined: Mar 2003
Posts: 293
Likes: 0
From: TX.
Originally Posted by Cal
I didn't touch mine until it started leaking coolant, then I just eliminated the hoses and plugged the holes. I don't know why everybody installs a bypass; that metal tubing is too small to have any bearing on engine cooling. It's much cleaner in the engine bay with out the un-needed plumbing. Also, where I live we have quite a variety of hot and cold weather, and I've had no problems with TB icing so far. I think it's a bigger deal on carbed cars.
have a bigger chance of icing than TB.
and you dont have to buy a kit, i didnt
i just went to autozone and baught a trans cooler hose( cant remember ex. size been a couple of yrs) for a couple of bucks to run from that small tube
to the tube on the radiator, easy.
About 4 yrs ago I actually dyno'd this mod while sitting on the dyno. It didn't make a damn bit of difference after 20 minutes of cool down...
If you're going to do it, do it for convience on pulling the TB. Otherwise don't waste your time/money if you're looking for more power.
Josh
If you're going to do it, do it for convience on pulling the TB. Otherwise don't waste your time/money if you're looking for more power.
Josh
you like digging up the dead bro? damn this thread is 9 years old.
in all honesty, I did the tb bypass and noticed lower coolant temps and I can see them on my aeroforce scangauge. Im sure theres lower IAT's too, i just havent looked at them before or after.
in all honesty, I did the tb bypass and noticed lower coolant temps and I can see them on my aeroforce scangauge. Im sure theres lower IAT's too, i just havent looked at them before or after.
TECH Apprentice
Joined: Jan 2013
Posts: 388
Likes: 1
From: Mishawaka, IN
With lower coolant temperatures, will the car feel more peppy? Living in CT I'm sure it gets cold there, does the icing problem happen, does it take the car longer to warm up, and cons about it?
I just did the bypass mod like a week ago when i put my new tb on so I can't really say much about the cold causing issues right now. It takes about the same amount of time to warm up but I noticed especially at highway speeds the temps will drop faster and stay lower.
TECH Apprentice
Joined: Jan 2013
Posts: 388
Likes: 1
From: Mishawaka, IN
