Quote:
Originally Posted by 91svtbird
The intercooler system is a closed system and therefore subject to pressure build up . When the water/ antifreeze mix is heated it will expand. Since fluids are not compressable and if the system is full it will begin to build pressure albeit maybe not as much as the engine cooling system but still somewhat.
I believe it is for this reason Ford thought it important enough to include a 16lb rated cap with a relief valve built into it on the stock tank.
In norman street driving there is probably nothing to worry about however under extreme use (like durring track time on a road course) the system will be tested to the fullest.
If the heat exchanger is not up to the task and without the 16 lb saftey cap temperatures could increase enough where the pressure build up could potentially reach a critical point to where a system failure could occur , such as a blown hose or possibly even a ruptured intercooler core.
IMO this senerio could apply to any manufactured tank without the factory style stock type saftey cap.
I'm just trying to point out what I feel could be a very important saftey issue to consider when choosing any aftermarket HE tank.
respectfully,
91Svtbird
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You bring up a very valid point, I'm sure Steve will chime in and have an answer.