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YOUR RESEARCHlightweight flywheel - impressions
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Run heavier weight transmission oil
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can i run a heavier weight transmission oil to counteract the noise?
Leading evidence: 'Run heavier weight transmission oil' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run heavier weight transmission oil' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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just got it installed (thx akkurat) and the the ol' 996 feels really zippy. i think it'll get even better after the computer relearns my driving habits
like everyone else says there are NO drivablility issues. i also got an uprated clutch and still drives like stock. pedal action is actually lighter now, my old clutch was at the rivets
like everone says there's a rattle at idle with the clutch is disengaged BUT no one ever mentioned the much increased gear noise while driving hard. when accelerating, there is gear noise, not too bad, but the first time heel/toeing into a corner and with heavy compression/engine breaking the gear noise scared the bejezzuz out of me! the vibrations/noise is transmitted up throught the transmission tunnel, through the shifters cable all the way up to the shift ****.
so right now, i am not sure if it is a worth while upgrade in performance, downgrade in comfort. i will be getting some dynamat and applying it to the underside of the center console. if this appears to have any effect then i'll apply more under the carpet.
interesting thing, when the car is cold there is no gear noise but once the car warms up to operating temps the noises come back. can i run a heavier weight transmission oil to counteract the noise?
does anyone have any tricks to lessen the noise?
Are you sure that's normal? Have one of the porsche race shops check it out, try TRG. Might be beyond the pervue of a tuner shop. I've seen many cars with lightweight fw's, none of them made any gear noise.
actually, i'm not so sure that's normal. i'll be going to akkurat for their opinion. they've done quite a few LWFs so i'm thinking they should know. TRG is kinda far.
when i had the lightweight flywheel (and stronger clutch) in my 996, the chatter was pretty much only at idle and only with the clutch out. my cgt makes the same chatter from idle to appx 2k. once you get used to it, it's no big deal. but, i'm very surprised your 996 is making the chatter off idle.
