We also sell a DIY kit for intakes not covered/offered with a direct fit kit. For instance a factory LS1 2 or 3 intake will use our V2 Flex Line Kit, High Rise Intakes like the Holley Hi Ram or Edelbrock Pro Flo will use our Stainless Steam Kit, and LSA LS9 superchargers will use our LSA Steam Kit due to how large the superchargers are and how far they hang off on the corners. Different Intakes require different Steam Line setups: Due to how low the intake sits will determine which line kit you need. Do not run the line to your water pump as this just reintroduces the pressure/steam back into circulation.ĥ. LS Swap radiators commonly do not have this location below the radiator cap. This will allow the radiator cap to relieve the steam/pressure buildup as it builds and reaches the rating on the cap. Run coolant crossovers to just below that position on the radiator tank, many radiators from LS powered factory vehicles already have a nipple here. The Common Line (line to your radiator) needs to be routed to a point directly below your radiator cap not the water pump! Route to a spot just below the radiator cap, DO NOT ROUTE THIS TO THE OVERFLOW PORT typically right below the radiator cap, that is a pressure relief port. Editor’s Rating: This Zerex coolant, from the brand Valvoline, is designed for use in passenger cars, pickups, and heavy-duty vehicles alike. We suggest doing so with a cool engine!Ĥ. Zerex G-05 Antifreeze/Coolant, Concentrated (ZXG051) View on Amazon Why we like it: Zerex coolant is inexpensive and highly effective, even in heavy-duty vehicles. This is best done when the engine is not hot as it can become a safety hazard to handle hot fluids. This makes bleeding the cooling system on your LS1 LS2 LS3 LS6 LS7 LSA LS9 LSX engine very easy! Be sure to plug the radiator port you remove the hose from. They Make Bleeding air out of a cooling system easier! Simply remove the common line that typically goes to your radiator, turn on your waterpump (if electric) or start the engine (if mechanical) and run your line from the steam kit (coolant crossover) into a large container or bucket until you see no more air bubbles come out. This can cause an unsafe tune which will detonate / cause the cylinder to change fueling requirements which can be catastrophic.ģ. Not having all 4 corners of your coolant crossover will allow steam pockets (aka pressure) to build up in the highest point of your cylinder head and create hot pockets. They make tuning your LS engine easier and make your tunes safer! Air pockets create pressure which increases temperature. Early LS engines came with 4 corner versions, Later Model engines only had the front two ports used as the intakes did not allow for routing under the intakesĢ. Or, there could be a small leak in a coolant hose or the radiator, letting coolant drip out of the vehicle and onto the ground.Why Your Turbo Supercharged or Naturally Aspirated LS Engine needs Steam Vent Kit: 5 Facts About 4 Corner LS Coolant Crossover Steam Kitsġ. If your engine is low on coolant, there could be damage to the engine internally, letting some coolant burn up inside the engine over time. To check the coolant level, just look at the reservoir! If the fluid level is well below the fill line, you may need the system inspected and topped-off. In fact, most modern cars have a remote coolant reservoir with a translucent tank and a fill line printed on the tank itself. However, be sure not to open the radiator cap unless you know that the engine is cool! Removing the radiator cap of a hot engine can cause hot coolant to boil over out of the radiator, potentially splashing on you and causing burns. Should I Check My Coolant Level?Ĭhecking the coolant level is a smart thing to do from time to time if you're able. The recommended replacement interval is after 11 years or 137,500 miles of driving! Thereafter, you'll get the best reliability and longevity from your vehicle with regular coolant replacement every 6 years of 75,000 miles. Run coolant crossovers to just below that position on the radiator tank, many radiators from LS powered factory vehicles already have a nipple here. Your Subaru vehicle was pre-filled from the factory with Subaru Super Coolant, which has been specially engineered for exceptionally long life. How Long Does Antifreeze Last In My Subaru?
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