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The Terminator
Engine/Tuning
Coolant system redesign/OEM style overflow tank elimination
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<blockquote data-quote="SecondhandSnake" data-source="post: 16419347" data-attributes="member: 116684"><p><span style="color: #b30000"></span></p><p><span style="color: #b30000"><span style="color: #bfbfbf">Technically that would be ok, but that would have to be one hell of an incline. I mean you could fill your oil from the drain plug by flipping the car upside down but it isn't very convenient.</span></span></p><p></p><p></p><p><span style="color: #b30000"></span></p><p><span style="color: #b30000"></span></p><p><span style="color: #b30000"><span style="color: #bfbfbf">That certainly makes it easy.</span></span></p><p></p><p><span style="color: #b30000"></span></p><p><span style="color: #b30000"></span></p><p><span style="color: #b30000"><span style="color: #bfbfbf">I think you'd still need one off the radiator neck, but not the sealed expansion tank.</span></span></p><p></p><p><span style="color: #b30000"><span style="color: #bfbfbf">The thought/issue there is that with the cap on the radiator like that, during normal operation it's going to act like the old foxes as far as venting/recovery goes. When your system hits that 16psi, the cap is going to lift to relieve that pressure. Since it isn't the highest point in the system, that portion should be full of coolant. That means it's going to release coolant instead of air/vapor. That's fine and dandy for the foxes because that's how they're set up with the recovery tank. Here it's fine, but it's still added complexity.</span></span></p><p></p><p><span style="color: #b30000"><span style="color: #bfbfbf">With a surge tank you ideally want the cap atop an air pocket so that it vents air/vapor. If you look at the stock one, that's how it's set up.</span></span></p><p></p><p><span style="color: #b30000"><span style="color: #bfbfbf">Given the outlet blocks have a fill port, if anything I would recommend running it more or less like I have it, which is still similar to stock. Use a universal surge tank with a pressure cap (Speedway has some nice ones) and hide it wherever you want. Fill the system until you reach the desired level of trapped air in it, then cap it. Then fill the system the rest of the way. You'll leave the barb on the surge tank, but it's going to be venting/pulling in air, not coolant.</span></span></p><p></p><p></p><p></p><p></p><p>If it's an 1/8" NPT it might be too small, but I suppose anything is better than nothing. 1/4" NPT would probably be better. With the bypass just make sure it goes to water pump inlet, whether that's via the lower block inlet or the valley heater core line.</p><p></p><p></p><p>Forgot to mention the compucheck fittings, although I think that might be a trade name. You should be able to get them from your average hose and fitting shop. I think Parker has them labeled as "test port and diagnostic quick couplings." Either 1/8" or 1/4" NPT ones will be fine, depending on how fast you want to fill. 1/4" is suitable for heavy trucks, so take that for what it's worth.</p><p></p><p>For installation location if you put it in the lower radiator hose/pipe, or hell, even in place of the draincock, the big advantage is that it makes it so much quicker and easier to fill and drain. You can use a vacuum rig to pull the coolant out quicker. When you fill it, you're filling from the lowest point so it fills quicker and there's less air to have to burp out of it when you're done.</p></blockquote><p></p>
[QUOTE="SecondhandSnake, post: 16419347, member: 116684"] [color=#b30000] [color=#bfbfbf]Technically that would be ok, but that would have to be one hell of an incline. I mean you could fill your oil from the drain plug by flipping the car upside down but it isn't very convenient.[/color][/color] [color=#b30000] [color=#bfbfbf]That certainly makes it easy.[/color][/color] [color=#b30000] [color=#bfbfbf]I think you'd still need one off the radiator neck, but not the sealed expansion tank.[/color][/color] [color=#b30000][color=#bfbfbf]The thought/issue there is that with the cap on the radiator like that, during normal operation it's going to act like the old foxes as far as venting/recovery goes. When your system hits that 16psi, the cap is going to lift to relieve that pressure. Since it isn't the highest point in the system, that portion should be full of coolant. That means it's going to release coolant instead of air/vapor. That's fine and dandy for the foxes because that's how they're set up with the recovery tank. Here it's fine, but it's still added complexity.[/color][/color] [color=#b30000][color=#bfbfbf]With a surge tank you ideally want the cap atop an air pocket so that it vents air/vapor. If you look at the stock one, that's how it's set up.[/color][/color] [color=#b30000][color=#bfbfbf]Given the outlet blocks have a fill port, if anything I would recommend running it more or less like I have it, which is still similar to stock. Use a universal surge tank with a pressure cap (Speedway has some nice ones) and hide it wherever you want. Fill the system until you reach the desired level of trapped air in it, then cap it. Then fill the system the rest of the way. You'll leave the barb on the surge tank, but it's going to be venting/pulling in air, not coolant.[/color][/color] [color=#b30000][/color] If it's an 1/8" NPT it might be too small, but I suppose anything is better than nothing. 1/4" NPT would probably be better. With the bypass just make sure it goes to water pump inlet, whether that's via the lower block inlet or the valley heater core line. Forgot to mention the compucheck fittings, although I think that might be a trade name. You should be able to get them from your average hose and fitting shop. I think Parker has them labeled as "test port and diagnostic quick couplings." Either 1/8" or 1/4" NPT ones will be fine, depending on how fast you want to fill. 1/4" is suitable for heavy trucks, so take that for what it's worth. For installation location if you put it in the lower radiator hose/pipe, or hell, even in place of the draincock, the big advantage is that it makes it so much quicker and easier to fill and drain. You can use a vacuum rig to pull the coolant out quicker. When you fill it, you're filling from the lowest point so it fills quicker and there's less air to have to burp out of it when you're done. [/QUOTE]
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