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Registered
Join Date: Apr 2008
Location: Australia
Posts: 84
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Lightened and/or knife edged crankshaft
Is anyone here running a lightened or at least a knife edged crank?
Not after internet opinions but would appreciate hearing from someone who has first hand experience. How much was removed from the counterweights? Balance, vibration issues? Performance gain?
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If it aint blown, it sucks! World`s quickest 924 2L slushbox. |
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06-14-2012, 07:40 AM
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Porsche 944S Club Sport
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Check with Dave Lindsey or Pete from RS Barn. These guys have raced our platforms with all types of mods...
Later....
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Guru944  2006 955 Cayenne S Titanium Series - Marine Blue, 1987 Porsche 944S Club Sport. 1987 Buick Turbo-T Lightweight "Great White", +500HP, TA49 Turbo. http://www.blackbirdmotorsports.com, 944/951/968, 911 and 955/957 Performance Solutions. Thank you Lord, for your Loving Kindness, Tender Mercy, and Grace. Only You are Faithful. |
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06-14-2012, 03:17 PM
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Registered
Join Date: Sep 2011
Location: Florida
Posts: 1,949
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My track car crank was cross-drilled and knife edged and also has a crank scraper. Definatley an improvement when running consistently above 4k rpm. Doubt you will see any benefit on a street machine though and probably some disadvantages. The four-banger needs the weight in the crank/flywheel assembly to maintain the torque, lighten it and you will probably lose low down torque. Not too good for a stop-start street car.
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06-14-2012, 04:02 PM
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"Le Mans II"
"Big Blue" 955STi
NYSE Carrera
