Quote:
Originally Posted by x808drifter
As I said in the other thread.
A catch can is used to monitor engine health.
And as Mike said, you probably don't need one unless pushing the engine hard.
If its catching alot of fluid something is wrong with the engine.
Do you feel the engine is or might in the future have blowby/pcv problems, get one.
Get one if you are going to be pushing the engine hard alot. (Track Use)
Or get one just because you want the peace of mind.
Otherwise on a daily, don't bother.
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This. Depends on your setup and driving. If you're running super high boost, if your motor is tired/has a lot of blow-boy, if you track hard and frequently, it's a good safety mechanism and good indicator of how your motor is holding compression. If your motor is healthy, and you're running something like an 8 or 9 psi unit (especially a centrifugal unit), you probably don't need it unless you suspect your motor is tired (high mileage, uses oil). I have catch can on both PCV and CCV, PCV doesn't collect hardly anything, and CCV absolutely nothing. I'm running a Vortech unit that peaks around 11psi. Some motors naturally use more oil than others, so if you want to be safe, just spend a couple hundred bucks and get one for the PCV side.