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Buiding 2 boost motors..Crank question..

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Old 06-15-2006, 07:06 AM
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Default Buiding 2 boost motors..Crank question..
I got 2 Motors I just got back from the machine shop sitting in my garage awaiting me to assemble them..One is a B20 and the other is a Gsr..The machine shop didn't mark which crank was what and I didn't see any markings on the crank to define them..How do I tell?
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Old 06-15-2006, 11:05 AM
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Default Re: Buiding 2 boost motors..Crank question.. (1FastCoupe)
The B20 will have bigger counterweights in the center than the gsr crank.
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Old 06-15-2006, 01:52 PM
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Default Re: Buiding 2 boost motors..Crank question.. (earl)
Does the GSR have narrower rod journals?
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Old 06-15-2006, 02:09 PM
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Default Re: Buiding 2 boost motors..Crank question.. (Oyvind Ryeng)
No they are interchangeable.
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Old 06-15-2006, 02:45 PM
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Default Re: Buiding 2 boost motors..Crank question.. (Oyvind Ryeng)
The gsr has a 2mm more narrow journal than the B20 but it is hard to see by just eyeballing it.
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