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Knock Sensor???
Is there a easy way to tell if my 1987 Porsche 924S has a knock sensor. I heard that some have 2 of them and others have 1. Was there a a specific year for the knock sensors. Also how far can the computer retard the timming 2, 4, 6, degrees??? Thanx
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1986 951, Stock for now. ]87 924S Gaurds red- SOLD after 11 years of ownership |
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12-30-2003, 04:29 PM
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That is for the turbos and the 944S. The 944S, dual over head cams, has two and a hall sensor on the cam gear for figuring out which cylinder is predetonating -- knocking. Same with the 968's. Consider your self lucky.
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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12-30-2003, 05:36 PM
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so the 924S has no knock sensors?
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1986 951, Stock for now. ]87 924S Gaurds red- SOLD after 11 years of ownership |
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12-30-2003, 07:18 PM
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Join Date: Feb 2001
Location: Viera FL
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Correct, the 924S has no knock sensors.
Seem to recall reading that the 944S can retard up to 12 - 15 degrees. Dme is supposed to detect a knock, retard that cylinder a few degrees then listen again. No knock - start advancing timing again, if knock continues, retard and repeat cycle. AFJuvat
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Es geht nicht darum wie schnell man faehrt, sondern wie gut man schnell fahren kann. Ihr Brunnen der nutzlosen Porsche Information |
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12-30-2003, 07:30 PM
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Dam I was kinda hoping that it had one. See I didnt want to add a timming controler when I install the nitrous kit. Right now I have a zex nitrous kit on my 2000 toyota tacoma and it made it alot easier because it has knock sensors so it will automaticly retard the timming. I think a 75hp shot is like a 4 degree retard in timming. But anyway back to the drawing board
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1986 951, Stock for now. ]87 924S Gaurds red- SOLD after 11 years of ownership |
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12-30-2003, 07:56 PM
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The turbo has one. Don't know how it integrates into the electronics.
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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12-30-2003, 09:33 PM
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Join Date: Aug 2001
Location: Brighton UK since 11/2012
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I want to Nitrous my 944.
(off the road due to blown tranny) Just wondering how those two statements can be in one post.
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From November 2012; Precision Porsche Specialist Sussex UK, +44 (0)1825-721-205 2001-2012 Gerber Motorsport Inc. 206-352-6911 07.15.06 1996 Ducati 900SP. Suprisingly enough, it's red 08.16.09 1999 Kawasaki ZRX1100. Green. |
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12-31-2003, 07:18 AM
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It's only money. Some have more. The rest of us a lot less.
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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12-31-2003, 07:34 AM
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1987 Porsche 924S 2.5 modified
1983 Porsche 944 2.5 liter
