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Old 05-17-2011, 04:16 PM
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Track Roadster, trunk mount radiator

I'm planning on mounting my radiator in the trunk, due to front frame kick up clearance issues. I'm going with a 350, 4 speed.
I have formed a airduct into the belly pan to direct air in, and planned on a louvered deck lid for air to exit.
My question is; Will a stock water pump be strong enough to circulate water from front to rear? If so, great! If not, what are my options. I welcome any, and all advice.

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Old 05-17-2011, 04:45 PM
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Years ago, when I was playing with Corvairs, I read of Bill Thomas' Corvair overheating after some of the sheetmetal was removed from under the motor. When a flat piece of sheetmetal was replaced under the motor, the car ran cool again. It was found that without the sheetmetal in place, the air coming from the front to the rear under the car would "dam-up" under the motor, preventing the fan from pushing air down through the motor. The sheetmetal provided a thru-way for the hot air to exit the car without being stagnated.

This may or may not be helpful to you, but it is the first thing that crossed my mind when I read of your intentions. Do all your homework about the flow of air in that area, maybe even to the point of glueing down some wool tufts to watch airflow.

You might also PM Matt on this forum. He built a Chevy-powered VW and mounted the radiator in the rear, so he may have some words of wisdom for you, or you may read through his build thread....
http://www.hotrodders.com/forum/v8-1...t=Super+Beetle

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Old 05-17-2011, 05:00 PM
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Thanks for the reply.
The underside belly pan extends from front to rear. There is a clearance space for the bottom of the oil pan. Other then that, just the scoop cut out to route air into the trunk. Once the radiator and electric fan are mounted, the air under the car should get to the radiator. I'm more concerned about the water pump pushing/pulling, that distance.
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Old 05-17-2011, 05:02 PM
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Quote:
Originally Posted by Bulletnose26
Thanks for the reply.
The underside belly pan extends from front to rear. There is a clearance space for the bottom of the oil pan. Other then that, just the scoop cut out to route air into the trunk. Once the radiator and electric fan are mounted, the air under the car should get to the radiator. I'm more concerned about the water pump pushing/pulling, that distance.
Read through the thread I referenced for you. I can't remember now, whether he used just the stock water pump or added an auxiliary pump, but anyway, they are available at any RV supply store (12v water pump).

Here's another thread from a couple years ago...
Rear mount radiator
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Old 05-17-2011, 05:08 PM
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Quote:
Originally Posted by techinspector1
Read through the thread I referenced for you. I can't remember now, whether he used just the stock water pump or added an auxiliary pump, but anyway, they are available at any RV supply store (12v water pump).
Thanks for this tip, I'll check it out.
Here's another thread from a couple years ago...
Rear mount radiator
Thanks for this info too! I will give them a look.
I did not expect such quick responses....wow.
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Old 05-17-2011, 05:22 PM
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Quote:
Originally Posted by techinspector1
Read through the thread I referenced for you. I can't remember now, whether he used just the stock water pump or added an auxiliary pump, but anyway, they are available at any RV supply store (12v water pump).
Thanks for this tip, I'll check it out.
Here's another thread from a couple years ago...
Rear mount radiator
Thanks for this info too! I will give them a look.
I did not expect such quick responses....wow.
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Old 05-17-2011, 06:19 PM
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Quote:
Originally Posted by Bulletnose26
I did not expect such quick responses....wow.
This is a very quick forum with lots of knowledgable members. I spend most of my time here because of that.
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