The condenser cannot go on the backside of radiator. If there is too much space the air will go around the condenser. There should be 1/4" – 3/8" (no more than 1/2") between the A/C condenser and the radiator. Is that true?Ħ) How much space should there be between the A/C condenser and the radiator? The 134A condenser is designed to reject 6% more heat at the same conditions and should withstand slightly higher pressure as required by SAE J639.ĥ) I understand that the R12 gas is being phased out. The 134A is EPA regulated and is what most car manufacturers are using today (the new refrigerant). This prevents the oil from breaking down and ensures lubrication meets design intention.Ĥ) What is the difference between a 134A condenser and an R12 condenser? When an engine is run at high speed for more than a few minutes, such as racing, the engine oil cooler will keep the oil temperature down. You can use an engine oil cooler if your car does not currently have one. Extreme high output engines may benefit from higher pressures.ģ) Can I use an engine oil cooler if my car does not currently have one? If the coolant temperature and flow are well controlled it will not offer a significant improvement. Griffin recommends using a premium cap with 14-18 psi for street use and 22-24 psi for racing.Ģ) If I increase the pressure on my cap, will it cool better? I hope this helps.1) What kind of pressure cap should I run with your radiator? The trick is to have a cooling system that keeps things in check. The cap is the pressure relief/safety valve should anything exceed what it should be and prevent damage to components. This is normal within the operating parameters of any engine. This would allow the coolant to expand over into the tank then get sucked back into the main cooling loop as it contracts. If you really want a "surge" tank (which we call it in my work world) you will need to have a tank than can be pressurized which means the tube from the radiator needs to be on the inside/pressure side of the cap seal and your pick up tube going to the bottom of the tank. I believe the drag rules intent are to make sure any coolant doesn't get spilled out onto the track therefore you will need a large enough tank with a manual drain to contain what you may overflow. Overflow tanks are just that - for overflow and collects what gets puked out. I do not think there will be too much coolant sucked back into the system prior to the cap closing back up. When there gets too much pressure from too much heat, it opens outward (from the radiator) and allows pressure to be relieved and coolant to dump out. The cap opens up as things heat up and pressure builds up past its rating. On an older system, you will see usually the puke tube is on the outside of the radiator cap sealing surface. This is where the pressure and coolant expansion is contained within the coolant system as the coolant heats up and expands. If you notice on newer cars, they usually have a reservoir that has a pressurized cap and is not on the radiator itself. I know what a coolant catch can is I'm not looking to just run that. Right now I just have a dangling rubber hose. To recap I like the idea of having an extra 6-10 ounces of coolant, then it would be one less thing to check every other time I drive Mercula. I don't understand how the vent line would work here, I wouldn't want it to vent from the button.? If I fill it to just under the cap hole it might puke some out, if I fill and just cover the fins I don't think any comes out. I'd like something that will suck the coolant back into the radiator. I need an overflow can if I want to make some passes at the track. I searched around, but if there is a good thread let me know and I'll just read that one.ģ50 SBC, supposedly crate, no idea on power
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