Oil Lines For the oil lines we used Earl's Perform-O-Flex Hose. The hose is a steel braided line, which can withstand 1,500 psi. The lines we used that run to and from the oil pump to the dry sump tank are 16-gauge line. We used steel braided line here because these lines run extremely close to the driver seat and compartment. If one of these lines were to rupture it might pose a problem for the driver. And unlike our fuel line which had the steel tubing to fit it through the driver compartment, the oil lines connect to the dry sump tank behind the driver seat, going through a gusset and into the dry sump container.
The oil lines can be crucial because if they're not run correctly then they can cause huge problems with your engine. For instance, try to avoid using sharp angle fittings as much as you can because they cut down on the flow of the oil, which can lead to a blown motor. We recommend that you always use "high flow" hose ends or as Earl's calls them Tube Hose Ends. These fittings serve to transistion the change in direction of the oil more efficiently and that helps to maintain oil pressure and flow, and reduce cavitation.
Water lines The water lines are going to be steel braided also just so that if we ever get in an accident involving the nose or the radiator we can try to avoid being knocked out of the race because one of the water lines ruptured.
Most people would view the plumbing of a race car as mundane and just something that needs to be done. But if you look at it as something that can make your car faster, or more long-lasting, then you have a lot to gain. Everything we did when it came to plumbing this car was for a reason. We put more fuel line in the car so we could go longer on the first tank of gas. We used a lighter fuel line to save weight. And we used sturdy oil and water lines so that in a front-end collision we won't have to worry about the lines getting crimped and rupturing, which would put us out of the race.
The entire point of plumbing your car is to get the fluids to the desired point as quickly and safely as possible. Just like your home, you can avoid a bunch of trouble by taking a little more time and do it correctly the first time. This will also help you avoid that expensive repair bill that could come your way if the plumbing isn't done correctly.