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Author
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Topic: 28oz or 50oz balance???
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coupedup
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Member # 9987
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posted
 
 
Just wondering , my 347 stroker kit is 28oz balance and I was doing a little research and for some reason people don't like the 28oz.......wsup with that?????
Posts: 4406 | From: Ca | Registered: May 2010
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phildog
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Member # 1214
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posted
What do you mean by: some people don't like 28oz imbalance? 90% of the stroker kits come set up that way, you have to change out the balancer and flywheel if the shortblock is going into a 5.0, but otherwise, there is no disadvantage. If you want to sustain over 6k rpm, in say, road racing, then at that point you can benefit from a neutral balanced motor.
Posts: 1554 | From: 510 | Registered: Apr 2002
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coupedup
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Member # 9987
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posted
I just read that rotating assymblies with a 28oz balance are prone to causing more vibaration bcz ford used lighter rods , pistons etc. in pre 84 cars and that the 85 and up stangs use a 50oz balance.... What do you mean by change the flywheel and balancer if it is going in a 5.0 ? I'm gnna b using a 74 302 block and 5speed trans combo....so will I b able to run this setup without issues in balancing
Posts: 4406 | From: Ca | Registered: May 2010
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70mach351
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Member # 7528
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posted
does not matter what car it is going into. You will have to put a 28 oz balancer and flywheel on if the motor is 28 oz balance.
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70 Mach 1 gettin a make over
2001 Ford F250 Crew Cab 7.3
Posts: 1762 | From: EDH | Registered: Mar 2007
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coupedup
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Member # 9987
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posted
thanks 70mach.....Will the use of the 28oz balance effect performance in any way ?
Posts: 4406 | From: Ca | Registered: May 2010
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BIGBALLFACTOR
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Member # 7277
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posted
quote:
Originally posted by Nifty50:
thanks 70mach.....Will the use of the 28oz balance effect performance in any way ?
it will rev up quick that about it
Posts: 6908 | From: okc | Registered: Dec 2006
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Duncan Motors
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Member # 7045
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its your crank that determines your outer balance. if your crank is set up for 28, you have no choice but that.
Posts: 6310 | From: Vallejo | Registered: Sep 2006
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phildog
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Member # 1214
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posted
Sorry if my reply was a bit off track. The point which I was attempting to make is that a stock 5.0 flywheel and damper will not be compatible with a 28 oz imbalance bottomend. And I really doubt that there will be any perceptible throttle response difference between a 28 oz and a 50 oz imbalance motor.
If 28 oz imbalance was so bad, then why are 80% of the 8.2" deck stroker kits set up that way?
Posts: 1554 | From: 510 | Registered: Apr 2002
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turbo50
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Member # 6700
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posted
28 oz is less weight hanging on the end of the crankshaft.....so do the math...
neutral balance is the next best thing....
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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coupedup
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Member # 9987
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posted
Thanks turbo50 , makes sense!
Posts: 4406 | From: Ca | Registered: May 2010
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