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97hatch · 01-11-2009, 05:59 PM

well you would want to balance the crank with the new heavier rods but no you should not polish the crank

efhondakid · 01-11-2009, 06:43 PM

Quote:

Originally Posted by 97hatch

well you would want to balance the crank with the new heavier rods but no you should not polish the crank

Ive always been told to leave the crank alone, dont do anything to it.

whiterabbit06 · 01-12-2009, 12:38 AM

The crank is balanced to itself, the weight of the rods and the fact that on the crank they are 180* apart from themselves they balance themselves out. In other words leave the crank balanced from the factory and when you get the new rods/pistons make sure they all weigh the same.

nootrac22 · 01-12-2009, 08:41 AM

Quote:

Originally Posted by whiterabbit06

The crank is balanced to itself, the weight of the rods and the fact that on the crank they are 180* apart from themselves they balance themselves out. In other words leave the crank balanced from the factory and when you get the new rods/pistons make sure they all weigh the same.

yep. if it's that much of a concern take the rods and pistons to a shop and they can get them to weigh the same. Also to the OP, why would you change out the pistons to aftermarket and leave stock rods? IMO you're already in there might as well put some good rods to go with it and save yourself headache and labor down the road.

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01-11-2009, 05:59 PM	#26
97hatch ? Join Date: Feb 2003 Location: Anderson IN Age: 26 Posts: 1,670 iTrader: 0 / 0% Ride: i have 14 cars i drive my sohc turbo ef Rep Power: 53	well you would want to balance the crank with the new heavier rods but no you should not polish the crank

01-12-2009, 12:38 AM	#28
whiterabbit06 universal logic protocol Join Date: Oct 2007 Location: Norfolk, VA Age: 24 Posts: 766 iTrader: 0 / 0% Ride: 99 VW GTI 07 Jeep Compass Rep Power: 81	The crank is balanced to itself, the weight of the rods and the fact that on the crank they are 180* apart from themselves they balance themselves out. In other words leave the crank balanced from the factory and when you get the new rods/pistons make sure they all weigh the same.

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what's the highest compression i can run on 91 octane???