Re: Cause of IC failure?
Originally Posted by
waldig
I have been no pressure Woody since this cooling thing began. Please remember that the I/C varies from -14psi to plus 16 or what ever. That is a differential of 30 psi compression to about zero at full boost with your 16 psi rad. I have zero pressure so I go from -14 to plus 16differential, which is the same SWING if you are following my drift.
I have only plus or minus 16 psi approximately while you go from 30 psi to zero pressure differential. I like mine better as I have half the stress - - divided between + and - pressures. You go from -14 with +16 tank pressure ( 30 psi difference ) to +16 to +16 ( about zero difference). As soon as you lift off the boost you go to full 30# difference instantly, working the tank more.
Where is -14 coming from?
That is a darn good low pressure.
With the reservoir cap having a minimum low tolerance of 14psi I am sure that a normal radiator system will not get to that pressure or the the fluid would soon be low. 10-12psi maybe as the cap will be just out of the normal pressure range.
My original statement said that I was not considering max boost, frankly where on the roads can you do that and not get unwanted attention from the local constabulary? The cooler would last a long time if you lost your license. Also I was making the statement that the separated system was better in my mind.
For those that do not know the system is separated at the normal working temperature of the engine and therefore the separated system will cool down and lower the pressure inside it due to the water reducing its volume. From then on the IC system will only warm up from the use of the SC, ignoring radiant and conducted heat from the engine and the coolant will be cooled by the IC radiator. What pressure it will reach will certainly be lower than the engine coolant due to the lower temperature reached. At least one would hope so or the separated system is wasted money. When cool the system could have the rubber pipes collapse slightly to balance the IC coolant pressure to the ambient air pressure.
Last edited by onehundred80; Sep 13, 2012 at 08:13 PM.
Reason: edited, wrong word used and additions made.