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How smoothly does it run? How come?

 
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What is the lowest RPM your engine can idle without vibration or shaking?
400 RPM
0%
 0%  [ 0 ]
500 RPM
20%
 20%  [ 1 ]
600 RPM
20%
 20%  [ 1 ]
700 RPM
60%
 60%  [ 3 ]
800 RPM
0%
 0%  [ 0 ]
Any RPM
0%
 0%  [ 0 ]
Total Votes : 5

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Fast924Turbo  



Joined: 02 Nov 2002
Posts: 122

PostPosted: Sat Nov 16, 2002 6:23 am    Post subject: How smoothly does it run? How come? Reply with quote

I've been amazed at how low my 931 idles without shaking. I can take it down to like 500-600 RPM and I have to open a window sometimes to make sure it's running. Yet I don't remember my 924 being that nice at idle. I haven't brought it lower than that just cause I've never been messing with the tuning that far down the RPM scale. What's your experience?
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924RACR  



Joined: 29 Jul 2001
Posts: 9063
Location: Royal Oak, MI, USA

PostPosted: Tue Nov 19, 2002 11:28 pm    Post subject: Reply with quote

I haven't been able to mess with mine yet, as I still have to fix all the vacuum leaks and get it running properly at any idle...
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Vaughan Scott
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'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype
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numbbers  



Joined: 05 Nov 2002
Posts: 1910
Location: Highlands Ranch, Colorado

PostPosted: Tue Nov 26, 2002 11:44 am    Post subject: Reply with quote

Although, sometimes I can get it to idle at around 600, I have to keep it at about 900 for regular use, or it will die on decelleration. Also, when the AC kicks in, it will drag the idle down about 200 RPM.
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