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cis sensor plate stop

part # 928-110-924-00 the rubber stop Attached to the metal bracket that runs across the top of the sensor plate. so what the deal with this? does this stop actually have a function other than a anchor point for the factory air box? ? i have two 930 cis systems and both stops are at least 2 to 3 mm away for the sensor plate nut.. i don't see how this stop has a function. Other than the rubber coming loose and getting sucked into the turbo. hence my Question do i need it? im running a K&c cone filter .and if i do how should the stop be set?


Last edited by gorskined; 03-18-2022 at 09:10 AM..
Old 03-18-2022, 07:38 AM
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Way back in my cobwebs I recall this being for keeping the arm from bouncing creating caring air flow or some such thing. Maybe this will ring a bell and jog someone else’s memory.

Rahl
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1976 930 turbo Carrera, "Ubich". Mostly stock, lightly sweetened. She’s an angry schwierigkeit. She doesn’t want flowers, she just wants to dance! And when she does, she shakes her hips to the rythem of the road. Drive her like you hate her!
Old 03-18-2022, 11:46 AM
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Quote:
Originally Posted by gorskined View Post
part # 928-110-924-00 the rubber stop Attached to the metal bracket that runs across the top of the sensor plate. so what the deal with this? does this stop actually have a function other than a anchor point for the factory air box? ? i have two 930 cis systems and both stops are at least 2 to 3 mm away for the sensor plate nut.. i don't see how this stop has a function. Other than the rubber coming loose and getting sucked into the turbo. hence my Question do i need it? im running a K&c cone filter .and if i do how should the stop be set?
I was curious about this a few years ago. I removed it when I switched to the cone filter. I didn't see any difference.
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1981 SC Steel Widebody Outlaw in Pacific Blue and Artic White, 930/51 to 3.2l, K27 7006 Turbo, P&P Twin Plug heads, Twinfire Ignition, BLwur, Ruf Intercooler, Powerhaus headers, Zork, CIS Euro FD, 009 injectors, DOD, DP Lid, 044 pump, 930 4 sp LSD, Mocal 44 w/fan, LM2, Brembo, Retroair, Euromeisters.
Old 03-19-2022, 01:53 AM
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It has always puzzled ne too - for same reasons. My car did not have one, so I ordered and fitted one. But I am still struggling to see the point. Unless it is some sort of backstop for a backfire?
Alan
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83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-)
Old 03-19-2022, 06:38 PM
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Originally Posted by Alan L View Post
It has always puzzled ne too - for same reasons. My car did not have one, so I ordered and fitted one. But I am still struggling to see the point. Unless it is some sort of backstop for a backfire?
Alan
i thought the same but there is no play in the sensor plate arm to go that far back.

Old 03-21-2022, 03:16 AM
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