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Old 11-08-2010, 08:22 PM   #1
project.r.racing
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How VICS works.

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Old 12-08-2010, 08:41 AM   #2
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Nice simple diagram

Thanks Ryan.
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Old 12-08-2010, 12:18 PM   #3
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Thanks for illustration ryan

Now from looking at that, and with me not having VIC's butterflies/shutter valves, I would be getting double the air?
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Old 12-08-2010, 02:51 PM   #4
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Down low yes. Up high no.
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Old 12-08-2010, 03:01 PM   #5
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Also, down low the velocity of the air would be lower because you do not have the VICS butterflies (closed). This might hurt your bottom end a little bit
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Old 12-08-2010, 04:11 PM   #6
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so its just letting more fuel into the cylinder?
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Old 12-08-2010, 04:14 PM   #7
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so its just letting more fuel into the cylinder?
LMAO title sugests an explination on how VICS works yet there is only a lame pic
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Old 12-08-2010, 04:16 PM   #8
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No it gives the charge correct velocity to suck itself in sort of and propagate through pipes with minimal losses. For each speed of air there is a correct diameter/length combination for maximum efficiency. This. Adresses the issue sort off
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Old 12-08-2010, 04:28 PM   #9
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Quote:
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LMAO title sugests an explination on how VICS works yet there is only a lame pic
bahahahaha

love it
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Old 12-08-2010, 04:32 PM   #10
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so its just letting more fuel into the cylinder?
Howd you get fuel from that diagram?

It shows what happens at specific points in the rpm range. How the runner length changes to suit the RPM band. At higher rpms the reflections should be shorter/fewer.
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Old 12-08-2010, 05:06 PM   #11
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another thing to remember is that this only works on NA applications as on FI runner lenght doesnt affect it as much. so in the high RPM range when the buttrfly is opn the suction of the engine will more likely suck through the shortest path IE the shorter runner and not that much through the longer one
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Old 17-06-2012, 08:16 AM   #12
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Thanks for illustration ryan

Now from looking at that, and with me not having VIC's butterflies/shutter valves, I would be getting double the air?
i can not answer you question with another diagram!!! lol

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Old 17-06-2012, 09:25 AM   #13
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Here is a dyno graph of my engine open vs closed with the 1.8 ecu.
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