The carb base DOES serve a purpose!

[66 Fastback]

The fallacy with that myth is if you buy into the fact that the coolant is now in the spacer longer and absorbing more of the heat, you have also slowed down the rate at which it is transported away from the spacer.

And if so many folks buy into slowing down the coolant velocity to give the coolant more time to absorb heat in the block and give off the heat while it is in the radiator, how come no one advocates the other side of the arguement? Shouldn't you also slow down the air velocity so that it has more time to absorb the heat in the radiator? The same thing is going on both sides of the surface. The coolant is basically the "cooling medium" for the block and the air is the cooling medium for the radiator. Everyone would think you a fool if you proposed slowing down the air velocity through the radiator because it is so obvious to everyone that the air is transporting the heat away. Why then is it not as obvious on the fluid side of the radiator?

Sorry, I couldn't resist.
Doug

 

[Bort62]

I'm not even going to get into it because I've exceeded my quota for message board religious wars this quarter, but let me just say as a mechanical engineer with a BS emphasis in thermal systems that this is indeed a myth, no matter what your common sense may tell you.

Heat transfer and related fields are some what anti-intuitive. It took me quite a while flailing on exams and homework until I finally "got it".

Then it was all easy - and thats why I changed my emphasis from Mech Design to Thermal Systems. Once you learn how to think about it, it becomes intuitive. Until then, it really can make zero sense. I really enjoy it now in a sort of perverse way, which is probably why I can get into such heated discussions on this very topic.

Fluid dyanmics is kinda the same way. Jury is still out on whether I totaly get that or not

 

[66 Fastback]

I confess I did poorly in my Thermo classes in school. I did not see the applicability to my primary interest Geology & Petroleum Engineering. But as I got around gas plants and compressors, it interested me more and is the root of all the efficiencies of the processes. So with a few industry schools and an "mandated" interest after college, I acquired a working knowledge that I failed to retain from school.
Doug

 

[page62]

Okay...what about excessive coolant bypass? No one's touched that yet...

 

[Bort62]

Okay...what about excessive coolant bypass? No one's touched that yet...

Bypassing what?

The coolant flowing through the heater core bypasses the radiator - and yes, I suppose that could have an effect.

 

[60s Refugee]

: Coolant bypass? Thermostat/bypass hose maybe? I ain't got one of those no how, just the thermostat. What's that got to do with keeping heat away from the carb base? Seems as though the whole idea is to get heat TO the carb sooner. Cripes, they clamp a heater hose to the choke housing cover, then run a hard tube to the exhaust manifold, then sit the carb on top of another heater hose. If they wanted it to cool they'd have put cooling fins on it or something, not coolant hoses and exhaust heat.

Harry

 

[66 Fastback]

Okay...what about excessive coolant bypass? No one's touched that yet...

Sticking a tube in the hose to restrict the flow through the heater and radiator bypass loop may have some meritI thought it may have some merit for cooling the engine if the heater is not being run, but not for the reason of slowing coolant flow to allow the heat time to soak into the coolant.

If flow to the bypass circuit is removed or reduced, then the fluid that normally would have bypassed should now go to the radiator. So with the additional coolant flow through the radiator, then there should be more engine cooling. Again, that would assume that the heater is not being run.
Doug

 

[Patrick66]

Road trip! no, not really.

im pretty sure i can borrow something from a friend. if i just measure the temp of the spacer without the coolan lines hooked up, then with it hooked up that should be sufficient, right? ive been meaning to get an infared temp gun to measure the temps in my snakes cage so i might go ahead and buy one anyway.

hey if you want I can hop over and let you borrow mine. My girlfriend bought me a really nice snap on one for christmas and the only time I used it was to measure the temperature of my brakes one day... lol

sure, ill let you know when its running consistently. tommorow im going to get the weber working on there and run in the cam. hopefully.

any chance youll be driving the 68 down here?

 

[hasa68mustang]

Road trip! no, not really.

im pretty sure i can borrow something from a friend. if i just measure the temp of the spacer without the coolan lines hooked up, then with it hooked up that should be sufficient, right? ive been meaning to get an infared temp gun to measure the temps in my snakes cage so i might go ahead and buy one anyway.

hey if you want I can hop over and let you borrow mine. My girlfriend bought me a really nice snap on one for christmas and the only time I used it was to measure the temperature of my brakes one day... lol

sure, ill let you know when its running consistently. tommorow im going to get the weber working on there and run in the cam. hopefully.

any chance youll be driving the 68 down here?

lol man I wish. I finally just picked up a new transmission that I am going to start building. lol maybe I will drive my other stang up or ssomething... lol