Quote:
Originally posted by Dean GXE
Blown how does the rubber oil cap do on your high compresion E16?
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***** It does just fine. Like most other parts on the car, the oil cap was replaced with a genuine Nissan cap. I never had a problem with it. However, I have a crankcase evacuation system on my E16. It is commonly used on racecar engines, and that's where I got the idea. I'm pretty sure you can get a kit from Summit or Jegs. I pieced mine together myself. They are reputed to save some HP by decreasing the amount of windage [slung oil] from creating a parasitic drag on the crank counterweights. Basically, it consists of a 3/4" diameter threaded steel fitting welded in the header collector at a 45 deg. angle. To that threads a one way check valve, [I used a junkyard air pump check valve from an old Buick V8]. To that you connect a length 5/8th heater hose up to the [larger of the two] breather fittings on the valve cover. Plug the other fitting. So when the engine is running, the exhaust gasses flowing through the header collector pass this 3/4" orifice [in the welded in fitting], and a vacuum is created. You are using this vacuum to "suck" the crankcase vapors out of your crankcase, thus the term "crankcase evacuation". This is something that would
not pass an smog emmisions test, if you live where they are checked. It's intended for race cars.
Aren't you glad you asked?
