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Wednesday, November 14, 2012

Nissan Turbo

Nissan Skyline R33 GTR
Generally hose kits purchased on line will have some problem. In this case the turbo feed line was too short and had to be pulled tight and routed through the middle on the turbo manifold. The product quality supplied was good but running any hose even high temperature braided Teflon hose will fail in a very short time . This is because although braided Teflon hose is rated to operate up to 260 degrees celsius a high performance turbo manifold will glow orange with heat at around 600 to 800 degrees Celsius. Only a solid steel line will survive at these temperatures but the oil in the pipeline will still boil and burn on engine shut down. We made a new line using 3/16 ID braided teflon and we always try and keep all hose and lines at least 80 mm away from exhaust manifolds and if possible place a heat shield between the manifold and the hose or wrap the hose or pipe in reflective aluminum. Does not always look very neat but its better to protect your turbo's bearings, expensive engine oil and engine don't you think? Also redone in 3/8 ID high temperature braided Teflon was one of the turbo water cooling lines and the fuel lines to and from the fuel injector rail and the rising rate fuel pressure regulator.