Idle going up and down after new flywheel....

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bigo181979
Posts: 44
Joined: Thu May 11, 2006 5:09 pm
Car: 95 240sx. 68 Chevy P.U. 02 Chevy Silverado

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Ok so I just put in an aluminum flywheel in and now my idle is going up and down. It only does it likewhen you are pulling up to a light and the it levels off after about 10 to 15 seconds. It drops down to like 250rpm and bounces up to about 500 or 750 and then like I said it levels out.

Has anyone had this problem and does anyone have a solution to it??

Oh yeah I have a 95 with a KA.


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homeslicej2
Posts: 5446
Joined: Mon Jan 15, 2007 5:46 pm
Car: 1990 Nissan 240SX S13 SR'd hatch

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Many times aluminum flywheels cause erratic idle bc they are too light for street use. You can still use them obviously, but they do tend cause erratic idle. Fix is to get a heavier flywheel. Stock KA flywheel is what about 21 lbs and your alum is probably 9-11 lbs. There are some 14, 15, and 17 lb steel ones out there. Still gives you quicker revving over stock but doesn't tend to have as many erratic idle problems.


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