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Thread: Weber IDA 'S's carburetor problems

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  1. 09-15-2023, 07:11 AM #1
    Fritz A. Ficke
    Fritz A. Ficke is offline
    Early S #590 Fritz A. Ficke's Avatar
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    Weber IDA 'S's carburetor problems

    I am helping some friends with the engine in their Early 67S it still has the original IDA 'S's carbs and it has the damage caused by this set up Porsche used.
    Porsche solved this problem with the Band-aid fix of the IDS carburetors, which of course do not make more power (actually less than IDA's) but they allowed the compression ratio on the 2.0L engine with single plug and no detention at high speed.
    This is the damage from running these IDA S carbs and no twin plugging, goes lean Detonation at high-speed causing Scored cylinders and a piston with a broken compression ring. Of course if you have a "cars and coffee" early 67S with the IDA S carbs you will be fine, just the wide-open throttle people will suffer running these without twin plugging the engine.
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