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Author Topic: Piston exploded  (Read 5103 times)

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Offline stephenson racing

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Piston exploded
« on: August 16, 2015, 08:45:57 pm »
Building another 28ci. Wanted to know if anybody else had problems with using stock 31 ohv  piston. Thank you
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Offline BIG AL 202

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Re: Piston exploded
« Reply #1 on: August 16, 2015, 09:18:59 pm »
LOTS OF US HAVE, DOES IT HAVE THE LONG ROD AND A MILLED TOP? WHAT RPM ARE YOU TURNING? THE PISTON IS THE WEAK LINK. REMEMBER THIS PARTS ARE ONLY MENT FOR 3600 rpm. BLOWING THIS UP, WELL IT'S GOING TO HAPPEN SOONER OR LATER (SOMETIMES QUICKER THAN WE WANT) IT STILL SUCKS!
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Offline stephenson racing

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Re: Piston exploded
« Reply #2 on: August 16, 2015, 10:16:46 pm »
Yea long rod.  About 6500 to 7000 rpm. Wanted to know if others are using a different piston
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Offline BIG AL 202

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Re: Piston exploded
« Reply #3 on: August 17, 2015, 09:02:37 am »
YES THERE ARE OTHER PISTONS. CONTACT E.C. CARB OR LOOK ON THEIR SITE FOR A FORGED PISTON. IF YOU CAN'T FIND IT CALL THEM, THEY ARE GREAT AND HELPFUL TO DEAL WITH!
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Offline stephenson racing

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Re: Piston exploded
« Reply #4 on: August 17, 2015, 10:55:05 am »
Thanks. Ec doesn't  have forged but still looking.  Ec said they don't have a lot of piston problems
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Offline Huffy044

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Re: Piston exploded
« Reply #5 on: August 17, 2015, 11:26:02 am »
These people have been helpful for me, know bore, wrist pin and piston height before you talk to them.  616-696-9606
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Offline Jeff McKelroy

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Re: Piston exploded
« Reply #6 on: August 17, 2015, 05:18:10 pm »
I've used them too, great folks to deal with, lots of choices!
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Offline simsracing10

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Re: Piston exploded
« Reply #7 on: September 17, 2015, 06:53:00 pm »
I have found it is best to change a piston about every 5-8 races I have taken many apart and they be cracked on the skirts, also from my experience the piston will wear before the block does. Hope this helps
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