Catch Can for crank case vent
- Thread starter Ked0607
- Start date
Why?
The only bike I'm aware of that needs one is the Kawasaki zx636.
If you ride a 10 o'clock wheelie or higher, oil in the valve cover pours out of the pair valve, on to the rear tire.
Don't ask me how I know that, lol.
The only bike I'm aware of that needs one is the Kawasaki zx636.
If you ride a 10 o'clock wheelie or higher, oil in the valve cover pours out of the pair valve, on to the rear tire.
Don't ask me how I know that, lol.
Catch cans are also good for automotive GDI/direct injection, to keep carbon from building up on the valves.
Ked0607
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I am mainly concerned with the oil vapors going back through the intake. Not a fan of oil going in air side at all due to it will get on throttle bodies and intake valves. I understand that gasoline will wash it off but theirs also soot thats in that mix as well. Soot is as bad as sand in the long run. I drive a diesel truck . Soot intake side is a very abbrasive thing.
Isn't there a plastic mesh/foam looking block in the gen3 airbox like most bikes, and a drain, to catch the oil?
Ked0607
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I have never opened my airbox couldnt even tell ya.
GSXRme
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Catch cans would be a huge concern if we were direct injection only. Opened my gen1 Hayabusa for pistons and rods when installing the turbo, she was clean on the intake valves and that was at 20k miles and running Chevron fuel, 93 octane to be exact. But we have port injection and we also have two injectors per cylinder now compared to gen1 so I would not be overly concerned on this. Those intake valves are getting a wash, just give her a good European update "WOT" every now and then.
And Ked0607 diesels are a form of direct injection. If diesel also had port injection you guys would not have that problem. Like the new fa20dit engines. I added a MoTec with port injection to control my 2018 wrx when I build my 20k closed deck long block to resolve that issue. Precision 6466 *drool*
And Ked0607 diesels are a form of direct injection. If diesel also had port injection you guys would not have that problem. Like the new fa20dit engines. I added a MoTec with port injection to control my 2018 wrx when I build my 20k closed deck long block to resolve that issue. Precision 6466 *drool*
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Robert 0046
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Ive read that the hot air coming from the motor can affect the performance of the motorcycle so its better a catch can or its better to leave the hose as it comes oem plugged to the air box?
GSXRme
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At stop lights yes and traffic with heat soak. But if your racing in traffic that would be more concerning.
GSXRme
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I will tell you the placement of our IAT "INTAKE AIR TEMPERATURE" sensors crap, because of the location so heat soak his more prominent which I think is causing everyone's hot start issues. But if you're driving your bike and wind is going it won't matter if you have a catch can or not.
GSXRme
Registered
You have to understand the ECU looks at the intake air temperature sensor as well as the map sensor and calculates a speed density fuel correction based off of the fuel table. If you're driving the bike and wind is moving your air fuel correction will be fairly low more than likely plus or minus 3%, but if you're stuck in traffic it's going to be fairly off regardless if you have a catch can.
