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Old 10-25-2008, 06:22 PM #1  
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FVD Ignition Sensor Holder min.93 Octane Rating

FVD Ignition Sensor Holder min.93 Octane Rating

Questions for a 91 964 Turbo ;

-Should there be any concern about engine knock by increasing the ignition timing across the rpm range by 6.5 degrees?

-Would 93 octane be enough to prevent any risks on a 1+bar setup?

-Installing Knocklink or an aftermarket knock sensor may be necessary?
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Old 11-22-2008, 08:13 AM #2  
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Quote:
Originally Posted by marcvip View Post
FVD Ignition Sensor Holder min.93 Octane Rating

Questions for a 91 964 Turbo ;

-Should there be any concern about engine knock by increasing the ignition timing across the rpm range by 6.5 degrees?

-Would 93 octane be enough to prevent any risks on a 1+bar setup?

-Installing Knocklink or an aftermarket knock sensor may be necessary?
I researched this a bit. Most thought the gain wasn't worth the risk.
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Old 11-23-2008, 05:25 PM #3  
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Apparently the oem ignition advance is 40 deg from 3000 rpm upwards at 400 mbar ( no boost) and 21 deg. at 1.750 mbar (boost). It is an increase of 6.5 degrees across the rpm band. Can anyone with tuning experience chime in?
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Old 01-20-2009, 07:53 PM #4  
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93, 964, aftermarket, fvd, holder, ignition, knock, octane, porsche, raing, rating, sensor, set, timing, turbo



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