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Hole in my piston

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  #11  
Old 01-01-2005, 01:11 AM
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Default Hole in my piston
Originally posted by: garyc660R
You will love the stage 2 hot cam. I wasted money on the stage 1...should have went straight to the stage 2, because thats what I needed.
garyc660R

Is the difference from stage 1 to stage 2 that significant? Did you have to rejet after the change? Is there a drop off of low or mid range tork?

Should I switch?
 
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  #12  
Old 01-01-2005, 02:39 AM
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Default Hole in my piston
how old was the JE? i would go with the CP before the Ross
 
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  #13  
Old 01-01-2005, 02:50 AM
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Default Hole in my piston
Originally posted by: Dfitz
garyc660R
What size piston are you running with the stage 2. Anybody have an idea why Sparks bikes can run with stock rods, other builds and CC motors seems to break them.
My Sparks motor broke my stock rod, from what I heard it may have been from the FCR carbs but who knows?? Thats the only conclusion Curtis came up with when mine and a couple others went.
 
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  #14  
Old 01-01-2005, 02:58 AM
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Default Hole in my piston
i personaly know of three raptors were the rods broke two were sparks
 
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  #15  
Old 01-01-2005, 04:21 AM
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Default Hole in my piston
What's the CP?
 
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  #16  
Old 01-01-2005, 09:45 AM
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Default Hole in my piston
Originally posted by: Dfitz
garyc660RWhat size piston are you running with the stage 2. Anybody have an idea why Sparks bikes can run with stock rods, other builds and CC motors seems to break them.
Previously 10.75/1 stock bore with the stage 1 cam.....now 102mm (686) with the stage 2 cam. On the stage 1 cam, low and mid range torque was stronger than the stage 2. This is a good thing with a little less low mid torque....IMO I had too much lower rpm torque before. Much less rider fatigue now when riding hard.....and the stage 2 top end is much stronger.
 
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  #17  
Old 01-01-2005, 01:02 PM
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Default Hole in my piston
Originally posted by: Dfitz
What's the CP?
www.cppiston.com

 
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  #18  
Old 01-01-2005, 06:25 PM
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Default Hole in my piston
What are the prices of the CP pistons? Best type and place to get lower and head gaskets? Do they come with the oring with the lower?
 
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  #19  
Old 01-02-2005, 01:51 PM
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Default Hole in my piston
TTT
 
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  #20  
Old 01-05-2005, 06:37 PM
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Default Hole in my piston
I added a couple pics of the hole/crack. When they okay them take a look.
 
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