TB Coolant Bypass Mod Questions
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Joined: Sep 2019
Posts: 55
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From: Utah
TB Coolant Bypass Mod Questions
I have two questions about this mod for my '89:
1) I live in Utah where the low temps in the winter can get down into the 20s and rarely into the teens. I don't drive my car in the winter and it is always parked in the garage. I do, however, start the car often in the winter just to let it run for a little bit. With that said, is it too cold in my area to do this mod?
2) By doing this mod, does air get into the cooling system? Just wondering if I would need to burp the system to get any air out.
Thanks!
1) I live in Utah where the low temps in the winter can get down into the 20s and rarely into the teens. I don't drive my car in the winter and it is always parked in the garage. I do, however, start the car often in the winter just to let it run for a little bit. With that said, is it too cold in my area to do this mod?
2) By doing this mod, does air get into the cooling system? Just wondering if I would need to burp the system to get any air out.
Thanks!
Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Go ahead. Make your stuff easier to get to. Sure, there will be a bit of coolant spill but it will not be much at all. It will be made up easily. Don't worry. You can start the car and I'll bet the heat from the engine will keep it from freezing up unless it can get so cold that you should not even be out there.
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
I have two questions about this mod for my '89:
1) I live in Utah where the low temps in the winter can get down into the 20s and rarely into the teens. I don't drive my car in the winter and it is always parked in the garage. I do, however, start the car often in the winter just to let it run for a little bit. With that said, is it too cold in my area to do this mod?
2) By doing this mod, does air get into the cooling system? Just wondering if I would need to burp the system to get any air out.
Thanks!
1) I live in Utah where the low temps in the winter can get down into the 20s and rarely into the teens. I don't drive my car in the winter and it is always parked in the garage. I do, however, start the car often in the winter just to let it run for a little bit. With that said, is it too cold in my area to do this mod?
2) By doing this mod, does air get into the cooling system? Just wondering if I would need to burp the system to get any air out.
Thanks!
1. It's not too cold.
1.5 And stop starting your car in the winter. Does more harm, than good.
2. A little air MAY get in while you are swapping hose connections...but the system is self bleeding. That air will end up the the over flow tank.
FYI, there is an Auto-x this weekend at the Legacy Events Center that I will be at...if you're interested in such horse play!
Melting Slicks
Joined: May 2018
Posts: 2,091
Likes: 600
From: Question Government
Not only does this mod eliminate an extra hose, but it makes it easier in the future if you remove the T.B., being less messy with coolant spills. It can also save your Optispark from coolant spilling onto it causing obvious problems. Horsepower gain?...Zero. I wouldn't do this mod if you're constantly starting and driving in temps below 25 degrees.
Pro
Joined: Mar 2004
Posts: 654
Likes: 18
From: Linthicum MD
The bypass mod also yields some hp and torque. Here is a test done with dyno #s from an F-body:
http://www.ws6.com/mod-8.htm
http://www.ws6.com/mod-8.htm
Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
The bypass mod also yields some hp and torque. Here is a test done with dyno #s from an F-body:
http://www.ws6.com/mod-8.htm
http://www.ws6.com/mod-8.htm
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Melting Slicks
Joined: May 2018
Posts: 2,091
Likes: 600
From: Question Government
The bypass mod also yields some hp and torque. Here is a test done with dyno #s from an F-body:
http://www.ws6.com/mod-8.htm
http://www.ws6.com/mod-8.htm
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Combustion creates water. Water is not good for combustion chambers, cylinders, valves and the entire exhaust. Also, starting/idle/shut off will add to condensation in your oil. The problem is that there is no way that you're creating enough heat (such as when you're actually driving the car under load) to eliminate the water that you've created. So, you shut the car down and now you've increased water in the oil, and you exhaust is likely sitting w/water in it. It's a good way to rot out your exhaust.
For all that...you've "helped" nothing, by starting it. No actual benefit has been realized. For winter storage, fill the gas tank to full, change the engine oil and put 'er away for the winter. Maybe put a tender on the battery if you're so inclined.
For all that...you've "helped" nothing, by starting it. No actual benefit has been realized. For winter storage, fill the gas tank to full, change the engine oil and put 'er away for the winter. Maybe put a tender on the battery if you're so inclined.
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From: Compound in the Grove, Ga.
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Or if you must do the winter start let all systems come up to operating temp and the fans cycle. At least 30 min. run.
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
...if you "must". But even with that waste of time, you're still not getting the mufflers and other down stream parts of the exhaust HOT.Running the car "just to let it run for a little bit" in the winter is treating a psychological problem...not an actual one.
Melting Slicks
Joined: May 2018
Posts: 2,091
Likes: 600
From: Question Government
I'm going to try and not get all "sciency" or political here, but global warming actually involves unusually warm Summers AND unusually cold and/or wetter Winters too. It makes extreme weather on both ends.