Originally Posted By: Olas
Originally Posted By: dailydriver
Originally Posted By: Olas
The problem with using a Properly designed catch can is this:
Although a top quality catch can will separate all of the oil vapour and moisture from the blowby gas, that clean blowby gas is still going back into your intake - so is that an issue? Well yes, blowby gas has no oxygen and is hot. No oxygen means its displacing combustible A/F mix (reducing power and torque) and the increased temperature Increases the chance of pinging/pre ignition (necessitating higher octane fuel and less right foot)
The internal combustion engine wants air and fuel. You start to feed it stuff it can't use and only bad things will happen.
While the above is true, in certain parts of this country one could
NEVER, EVER get away with an exhaust evac system, due to Gestapo-like VISUAL emissions inspections.
I don't know the in's and out's of American law so forgive me if this is a stupid question, but;
How do hot rods and muscle cars with a simple breather filter on the valve cover fare with these visual inspections? Over here the laws that were in place when your car was sold continue to apply for the life of the car, even when newer regulations come out (which only apply to cars sold after said newer regulations come into effect) I guess you have something similar?
They are so old, low production, specialty vehicle licensed, historic plated, etc. that they are TOTALLY exempt from any emissions laws or requirements, and can even swap out engines for ones that were never ever available in that model, for newer, or older ones, which also never would pass inspections due to high performance mods.
I would imagine it is the somewhat the same in Jolly Ol', as I doubt one could run around on the M1/M4 in a new(er)
production car model which is used in the BTCC, with a full race, 300+ hp BTCC engine in it (especially the older, pre-turbo formula, 2.0 liter, 300 hp+ NA ones), correct??
But my guess is that as long as it has all of the road going safety equipment, like functioning headlights (which the rallycross versions did NOT have), one could run around the public roads in an 800 hp RS200 Evo 2.2. Yes??
