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It took only 49 years!
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Idle Speed for an 87?
Just wondering what the idle speed should be set to for an 87 3.2...mine is around 950rpm and it seemsa tad fast to me.
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Serge: In the heart of Philly! Daisy - 1972 911T 2.7L Light Yellow Veronica - 1987 911 Carrera Coupe Indischrot, M&K GT3 muffler and Euro Pre-Muffler, SW Chip SOLD  Lil Blue - 2002 Subaru WRX Wagon (my dd/HPDE car) SOLD
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05-17-2012, 05:55 AM
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Diss Member
Join Date: Jul 2002
Location: SC - (Aiken in the 'other' SC)
Posts: 5,020
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Idle speed is controlled by the chip in the DME. Early 80's Carreras had the idle set at 800. Some time in the 87 model year the idle speed was changed to 880. To get a speed faster then that you would need air coming from something other then the butterfly. There may be a vacuum leak or a problem with the idle air control valve.
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- "Speed kills! How fast do you want to go?" - anon. - "If More is better then Too Much is just right!!!" - Mad Mac Durgeloh -- Wayne - 87 Carrera coupe -> The pooch. |
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05-17-2012, 06:05 AM
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It took only 49 years!
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I have a Steve Wong chip...Kevin at KMW said 950 is normal for that chip...just wondering.
Quote:
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Serge: In the heart of Philly! Daisy - 1972 911T 2.7L Light Yellow Veronica - 1987 911 Carrera Coupe Indischrot, M&K GT3 muffler and Euro Pre-Muffler, SW Chip SOLD Lil Blue - 2002 Subaru WRX Wagon (my dd/HPDE car) SOLD
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05-17-2012, 06:38 AM
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Spiderman
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My 87 idles in the 950 range and I think its great. Much better than when the return springs and pivots weren't pulling it home and it was 1200 + all over the place.
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Midnight Blue 08 Cayman S, Fun/Track Black 12 VW-GTI, work Mexico Blue 87 Carrera, sold, sad, not enough garage space. |
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05-17-2012, 07:59 AM
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,125
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If vacuum leaks are not your issue, maybe the idle microswitch has failed behind the throttlebody.
The switch retards the timing to 5 degrees at idle and jumps the timing to 20 I believe once it deactivates.
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Cory - turbo'd '87 C3.2 Guards/Blk, 3.4, 7.5:1 CR P & C's, 993SS cams, Borg-Warner S366 turbo @ 1.2-1.5 bar, depending on mood  , Treadstone full bay IC, 70mm TB, TiAL F46 WG, HKS 1 1/2" BOV, twin 044 pumps, MicroSquirt AMP'd w/GM smart coilpack, Bilstein coilovers, Tramont wheels (285's rr, 225's frt), Big Reds frt, 993 rr., tower brace, MOMO wheel
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05-17-2012, 08:43 AM
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Veronica
Lil Blue
Daisy
Money Pit
