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Join Date: Nov 2005
Location: columbia md
Posts: 208
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Wideband AFR on the 930

I have searched the other 911 site for reference to the Innovate Lm-1 system.. On the 930 I have a few questions...

Can the existing O2 sensor location on the pipe be used?

I believe that I can use the existing location with the wideband sensor and feed the CIS ecu with the single wire take off..

Do I need to disconnect the air pump and all the plumbing to the cylinder head?

Can the unit be permanently installed and who has done so...

Anybody have a complete installation photo documented?

Thanks..
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Old 02-15-2007, 02:13 PM
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The manufacturer recommends the O2 sensor is located approx 6" downstream from the turbocharger's discharge. If it's too close, the sensor could prematurely fail or give inaccurate readings. It should be after the turbo though, not before it on the header somewhere.
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Merv
'89 911 Turbo Cab
Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
Old 02-15-2007, 02:25 PM
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911rudy fitted his after the muffler as it was overheating before it.
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1981 UK 930. G50/01 shortened, 964 3.8RS Fibreglass Body Kit, 18" Alloys 8.5" F & 10" R, 225's F & 285's R, Special Colour Metallic Blue Paint, FIA Sparco Evo's, A/C and Air Pump removed, Electronic Boost Controller, GHL Headers, Tial46 WG.
Fitting - New service kit.
Needs Fitting - Innovate XD-16 Kit, Kokeln IC. Stephen's K27 HFS, EVO Intake Assy & his Modded USA Fuel Head.

1983 UK 911 3.2 Carrera Sport Coupe. Black, Black Leather with Red Piping, Black Alloy Gear Knob, K&N Air Filter Element, Turbo Tie rods.
Needs Fitting - K&N CO Sensor, Round A/F Dial Gauge, Factory Short Shift Kit.

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Old 02-15-2007, 03:19 PM
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Yup, I'll be fitting my LC-1 sensor after the muffler too, but as far away from tail-pipe opening as possible.
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Merv
'89 911 Turbo Cab
Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
Old 02-15-2007, 03:40 PM
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I know a couple of people with them permanently installed. One has been in for 3 years. Both have the O2 bung directly after the muffler.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 02-15-2007, 06:08 PM
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Mine is ~4" after the turbo. But then I don't have a muffler
When I was using a Borla muffler, the sensor was mounted right after the muffler (not enough room between turbo & muffler). It worked except at idle where it will read O2 basically.
I have mine for 3-4 years now. Still on the same sensor.
And mine is permanently mounted.
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Old 02-15-2007, 06:22 PM
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I have O2 sensor between the turbo and the muffler and getting accurate readings, I have also installed a heat shield. I have had no problems yet. I permanently installed the LC-1 and the AFR gauge is where the clock used to be. (Originally a Carrera Non turbo). If I had to do it again I would get the LM-1 over the LC-1/XD-16 combo.
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2005 GT3 Milltek Exhaust/ECU reflashed/OEM Short shift
1988 911 coupe (GP white) Turbocharged
1998 BMW 328i
Old 02-16-2007, 06:43 AM
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