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Another compression question
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Topic: Another compression question (Read 4102 times)
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SLEEPERBUSA
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Another compression question
«
on:
April 13, 2012, 09:39:50 PM »
Are the new JE 14.5 pistons to much compression for a pump gas street motor?
Stock deck head and block.
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208.6mph/ Texas Mile. 10/24/2010
fvance
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Re: Another compression question
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Reply #1 on:
April 14, 2012, 10:10:02 AM »
Probably
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SLEEPERBUSA
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Re: Another compression question
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Reply #2 on:
April 14, 2012, 10:43:59 AM »
My old Gen I ran 14:1 on Super, but the GENII is a full time streetbike, so I don't wanna have to mix anything if i'm out somewhere.
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Johnnnycheese
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Re: Another compression question
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Reply #3 on:
April 14, 2012, 09:21:56 PM »
gen 2 is a pickey beast not the same as a gen one
and yes your bearing are ordered
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SLEEPERBUSA
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Re: Another compression question
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Reply #4 on:
April 14, 2012, 10:32:26 PM »
Quote from: Johnnnycheese on April 14, 2012, 09:21:56 PM
gen 2 is a pickey beast not the same as a gen one
and yes your bearing are ordered
Thanks. I appreciate that.
What do you mean pickey???
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speedduck
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Re: Another compression question
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Reply #5 on:
April 15, 2012, 06:08:19 AM »
14.5 needs wild cams to work with pump gas, you need to loose some working pressure. I had a melted pistons using 1:15 with .445/244 in and .415/244 ex. Maybe some 250-254 cams could do it. And that is with full throttle on a mile.
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Johnnnycheese
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Re: Another compression question
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Reply #6 on:
April 15, 2012, 12:45:21 PM »
more pickey on the map
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SLEEPERBUSA
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Re: Another compression question
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Reply #7 on:
April 15, 2012, 12:58:52 PM »
That's not a problem. I know a guy that can get the map right.
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fvance
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Re: Another compression question
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Reply #8 on:
April 15, 2012, 06:47:12 PM »
Who is that??
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WORLDS FASTEST PRODUCTION MOTORCYCLE
VANCE & FORSTALL RACING
Top Speed 235 mph
HP by Carpenter & Johnny Cheese Engine by Knecum
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SLEEPERBUSA
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Re: Another compression question
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Reply #9 on:
April 16, 2012, 04:07:46 PM »
That guy up there in that Kawasaki jacket.
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208.6mph/ Texas Mile. 10/24/2010
fvance
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Re: Another compression question
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Reply #10 on:
April 16, 2012, 04:32:53 PM »
Oh him, I think I know him.
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WORLDS FASTEST PRODUCTION MOTORCYCLE
VANCE & FORSTALL RACING
Top Speed 235 mph
HP by Carpenter & Johnny Cheese Engine by Knecum
SponsersCATALYST COMPOSITES,JOHNNY CHEESE,KNECUM RACING ENGINES,MURRAY EXHAUST,CARPENTER RACING
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Another compression question