What are the cons of having no split-air pipe on an s5 NA?
#1
Full Member
Thread Starter
What are the cons of having no split-air pipe on an s5 NA?
I'm looking at pre-silencers and race pipes for my 91 coupe na, neither have a place for the split-air pipe. Aux ports actuators on s5's are operated by the air pump rather than the exhaust, so I am wondering what will I lose, if anything?
#4
Full Member
is the 6PI system still going to work without the split air pipe hooked up? I'm having to run without right now and I was wondering if the air pump still supplies pressure to the 6PI system without the split air pipe
#5
Mountain Builder
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It will. If you don't have to worry about emissions in your area, there's no worry. But at that point, your air pump is useless and you may as well pull it and grab a dual-sheave alt pulley, ACV block-off, and grab sleeve inserts like Atkins or Pineapple and run without the aux ports.
#6
MECP Certified Installer
It will. If you don't have to worry about emissions in your area, there's no worry. But at that point, your air pump is useless and you may as well pull it and grab a dual-sheave alt pulley, ACV block-off, and grab sleeve inserts like Atkins or Pineapple and run without the aux ports.
That's not logical.
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#8
MECP Certified Installer
Keep the air pump and the aux/vdi ports working as normal.
#9
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The systems mazda designed actually work, theres no reason to remove them. I noticed a massive increase in low and mid range torque with the system working correctly, which is exactly what they are designed to do
#10
Mountain Builder
iTrader: (1)
In a 100% stock application, I agree with you guys completely. However most of these cars are frakensteined and pieced together. Mine is ported very generously on the inside of course but the outside too so my aux sleeves don't even fit. I'm in the process of making a custom manifold. So it doesn't make ME slower per say, but absolutely on a stock application.
#11
Information Regurgitator
ACV is still needed for the aux ports and VDI on S5. Though I've read of a way to do it without them but using the air pump pressure and something or other(rpm switch, bleeder valve, etc.). Can't remember as I ditched the sleeves, rods, and all with my setup, with no current plans of going back.
#12
Information Regurgitator
It will. If you don't have to worry about emissions in your area, there's no worry. But at that point, your air pump is useless and you may as well pull it and grab a dual-sheave alt pulley, ACV block-off, and grab sleeve inserts like Atkins or Pineapple and run without the aux ports.
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