240Z, 260Z, 280Z Performance / Technical Discussions related to performance motor enhancements, upgrades.

Initial Carb settings

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Old 02-19-2006, 01:00 PM
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Location: Texas
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Initial Carb settings

All,

I forgot the initial external adjustment settings for the 4 screw SU carbs (fast idol screws, fuel adjusment ***** etc).
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Old 02-23-2006, 06:09 AM
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I checked mine to be sure and they are 2 turns to close. I'm at 4500 elevation so you might start at 2 1/2 - 3 turns. Also important with the SU's is the pistons must work freely and the air flow must be equal.
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Old 02-27-2006, 10:41 AM
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Thanks!!

Drop test on the carbs looks good. I'll re-set and give it a try.
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