High Compression Piston and Cam - Club700XX - Honda TRX700XX Forum
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post #1 of 8 Old 04-12-2011, 07:41 AM Thread Starter
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High Compression Piston and Cam

I am interested in getting a 12:5 to 1 high compression piston and a stage 3 hot cam installed on my 700!! Just looking for feedback or thoughts (good or bad) before i pull the trigger. Example: Gas, other motor work or other parts I would need to install. From looking at all the posts I think I'm in the right spot to get good advice. Thanks!!!!!!!!

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post #2 of 8 Old 04-12-2011, 08:11 AM
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With a 12.5:1 piston you are going to need run race gas(cam2 or C10).The hc 3 is a very mild cam, so no need for springs or hardwelded rockers. You will also need a pc3 or pc5 for tuning IMO.

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post #3 of 8 Old 04-12-2011, 08:25 AM
 
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rockingham, ?


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post #4 of 8 Old 04-12-2011, 09:36 PM
 
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the 12.5:1 piston wont get u much extra unless u do a lot of other mods. just going to make u have to run race fuel. go with an 11:1 piston unless u have plans to do some port work and better cam, springs, rockers in the near future to get the full potential of the piston.

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post #5 of 8 Old 04-13-2011, 12:00 AM
 
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What mods do you have right now? I was told with 12 5 1 you can get away with 100 octane but they recommended 110. I'm at 12 1 and I run VP C12 with my build. Like Britalican said it just depends on what you want out of it and how much you are willing to spend on fuel. I heard the HC3 works pretty good for the price with stock heads but Web cams work a lot better in ported heads, I would get a +3 throttle body with the cam and piston.

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post #6 of 8 Old 04-13-2011, 07:42 PM Thread Starter
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My current mods are are only fmf exhaust and programmer and K&N air filter. Not really worried about how much i spend on gas. Just looking to get a little more power overall but I dont want to pour 2000 dollars or more into. I was told i could get the HC piston and a cam for for about 350 and get it installed for about 250. havent priced the springs or rockers. looking to keep the price parts and labor under 1000. Yes I am from rockingham, nc

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post #7 of 8 Old 04-16-2011, 06:50 PM
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how can the stock high performance dirt bikes run such a high compression ratio on pump gas
13.2 to 1? http://powersports.honda.com/2011/cr...fications.aspx

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post #8 of 8 Old 04-17-2011, 01:14 AM
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all depends on cam profile, head design, true compression ratio, etc.

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