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How much Bob Weights do you have?

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Old May 1, 2007 | 09:03 AM
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LD85
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Default How much Bob Weights do you have?

They are balancing my rotating assembly and it came out in the 1700 range.

Scat 400 crank, Wiseco Pistons, Eagle Rods external balance

What kind of BW are tyopcial, I was told that factory BW is generally in the 1900 range.
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Old May 2, 2007 | 08:24 AM
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From: eville in
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you building a 400 or a 383 ?
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Old May 2, 2007 | 08:33 AM
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Originally Posted by comp
you building a 400 or a 383 ?
406,,, I am really just curious as to what constitutes Lite and Ultra Lite in terms of crank / bob weight rotating mass.

According to my web searches, 1700 seems to be considered lite by some and ultra lite by others.
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Old May 2, 2007 | 08:36 AM
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From: eville in
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Originally Posted by LD85
406,,, I am really just curious as to what constitutes Lite and Ultra Lite in terms of crank / bob weight rotating mass.

According to my web searches, 1700 seems to be considered lite by some and ultra lite by others.
OK, i'm going to be putting together a 383 so i was wondering how light i could go
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Old May 6, 2007 | 11:22 AM
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That is a pretty light assembly but take that as a good thing. Your bearings will thank you for that.
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Old May 6, 2007 | 11:07 PM
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We build some SBC 358 engines using Honda journal rods and some of the bob weights are in the high 1300's and we have had a few street rod guys go this route as well.
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Old May 7, 2007 | 08:57 PM
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Thanks guys, we'll see if it helps at the track
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