Coolant mod???
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Senior Member
Joined: Dec 2001
Posts: 286
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From: Hillsboro, Ohio
Coolant mod???
Hey guys has anyone done this or even heard about this? Is this something that is an issue?
http://forums.modulardepot.com/showt...ht=coolant+mod
Rich
http://forums.modulardepot.com/showt...ht=coolant+mod
Rich
Last edited by White01; Jan 9, 2005 at 08:45 PM.
Senior Member
Joined: Jun 2003
Posts: 152
Likes: 0
From: NW
Thats an interesting writeup.
On pushrod type motors I have seen people tap into the pressure side of the water pump and run lines to the back of the heads for added coolant flow .
The mod motor coolant mod seems to be the opposite of that, but probably accomplishes the same thing.
On pushrod type motors I have seen people tap into the pressure side of the water pump and run lines to the back of the heads for added coolant flow .
The mod motor coolant mod seems to be the opposite of that, but probably accomplishes the same thing.
Senior Member
Joined: Oct 2001
Posts: 2,456
Likes: 1
From: SE Mich
Ok.
He says he's a "purist"... and he does describe the *general* idea of how the modular system works. However there is more to it than he seems to be assuming.
First premis to overcome is that the disipation rates are not equall. Don't forget that it's not a "path of least resistance" or gravity. This is a completely enclosed and degassed system. It boils down to delta P and therfore the velocity. Again... in a "closed system". I could change the shape of a passage at the front of the drivers side head and easily make both banks flow the same. (we don't live in a symetrical world)
This means that you have to look at the velocities at every passage and not just the head gaskets or the rear of the heads all by them selves.
Secondly, he's assuming the heat disapation in the exhaust & oil is equall between the two. Maybe? maybe not? Only about 40% of the actuall cooling comes from the liquid cooling system.
One thing to keep in mind on all this is that the temp delta's between the two really is'nt very much at all. I'd think it to be wiser to use ever so slightly different sized primary tubes on the header than to mess with the **enclosed** cooling system.
Or... maybe he should try a precision cooling technique...
Don't get me wrong.. This guy has a good understanding of what's going on and appears to be smarter than the avg. bear.
Just my 2 cents, Rich
He says he's a "purist"... and he does describe the *general* idea of how the modular system works. However there is more to it than he seems to be assuming.
First premis to overcome is that the disipation rates are not equall. Don't forget that it's not a "path of least resistance" or gravity. This is a completely enclosed and degassed system. It boils down to delta P and therfore the velocity. Again... in a "closed system". I could change the shape of a passage at the front of the drivers side head and easily make both banks flow the same. (we don't live in a symetrical world)
This means that you have to look at the velocities at every passage and not just the head gaskets or the rear of the heads all by them selves.
Secondly, he's assuming the heat disapation in the exhaust & oil is equall between the two. Maybe? maybe not? Only about 40% of the actuall cooling comes from the liquid cooling system.
One thing to keep in mind on all this is that the temp delta's between the two really is'nt very much at all. I'd think it to be wiser to use ever so slightly different sized primary tubes on the header than to mess with the **enclosed** cooling system.
Or... maybe he should try a precision cooling technique...
Don't get me wrong.. This guy has a good understanding of what's going on and appears to be smarter than the avg. bear.
Just my 2 cents, Rich
Last edited by wydopnthrtl; Jan 10, 2005 at 12:59 PM.
