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Join Date: Dec 2015
Location: Dallas, Texas
Posts: 698
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AAR - signal air
Hi guys, I’m planning out the install of a euro CIS system on my 911SC. I’ll be running light boost and will initially try no intercooler. I’ll also likely be running a K&N or other more compact air cleaner.
Without an intercooler or large airbox, where should I draw the “signal” air for the AAR? Could I just put a cheap breather on the hose to filter the air and call it good? Any better solutions out there? As always, thanks for your help! |
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05-15-2019, 04:08 AM
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Unported intake pressure, so off the throttle body below the butterfly, or maybe brake booster line. I forget on the SC what connections are available. Worst case, drill and tap the intake for a fitting.
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'86 no-sunroof 930 coupe: Emissions removed, FrankenCIS controlling eWUR, lambda, COP ignition. Tial f46P 1.0 bar spring, SC cams, K-27/29, lightweight clutch, TK Longneck intercooler, RarlyL8 headers and dual-outlet hooligan '14 Jaguar XK-R: Bullet proof windscreen, rotating number plates (valid all European countries), martini mixer, whatever you do don't press this red button! |
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05-15-2019, 06:03 AM
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Location: Dallas, Texas
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No, this is the large (probably 1/2") hose from the "front" (rear bumper side) of the auxiliary air regulator. I think the other end would typically connect to the IC. So in typing this, I may have answered my own question - it probably needs metered air otherwise why would they plumb to the IC.
Any additional input would be appreciated though! |
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05-15-2019, 06:19 AM
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yes just the source of metered air to "leak" in via the AAR, not signal
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'86 no-sunroof 930 coupe: Emissions removed, FrankenCIS controlling eWUR, lambda, COP ignition. Tial f46P 1.0 bar spring, SC cams, K-27/29, lightweight clutch, TK Longneck intercooler, RarlyL8 headers and dual-outlet hooligan '14 Jaguar XK-R: Bullet proof windscreen, rotating number plates (valid all European countries), martini mixer, whatever you do don't press this red button! |
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05-15-2019, 02:05 PM
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Join Date: Apr 2008
Location: Miami
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I did exactly what you suggest but with an EFI system with speed density where it is ok to do that.
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1979 SC, Slant nose wide-body cab conversion. AEM Infinity EFI, COP, supercharged! |
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05-15-2019, 07:24 PM
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Location: Dallas, Texas
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Thanks, guys. I was talking with another member and was wondering whether I could hook into the aluminum tube coming out of the driver's side of the intake manifold. Since I won't be using the bypass/diverter system, I think these lines will otherwise be capped. This would be metered air, but would also be coming from below the throttle body.
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05-16-2019, 07:19 AM
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Join Date: Jan 2015
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The supply air TO the AAR must be downstream of the air metering plate but upstream of the throttle plate. The air FROM the AAR goes into the intake manifold downstream of the throttle plate.
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05-18-2019, 04:13 AM
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Excellent! Thanks, boosted.
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05-18-2019, 05:57 AM
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__________________
'86 no-sunroof 930 coupe: Emissions removed, FrankenCIS controlling eWUR, lambda, COP ignition. Tial f46P 1.0 bar spring, SC cams, K-27/29, lightweight clutch, TK Longneck intercooler, RarlyL8 headers and dual-outlet hooligan '14 Jaguar XK-R: Bullet proof windscreen, rotating number plates (valid all European countries), martini mixer, whatever you do don't press this red button! |
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05-18-2019, 01:14 PM
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