ATV Action review on the Thumper Racing 730XX - Club700XX - Honda TRX700XX Forum
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post #1 of 17 Old 06-16-2010, 09:50 PM Thread Starter
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ATV Action review on the Thumper Racing 730XX

The article got the stock compression ratio wrong and no dyno numbers. Still in all glad to see more interest in the XX from the aftermarket.

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post #2 of 17 Old 06-16-2010, 10:24 PM
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I also just received the ATV Action July 2010 edition. I was happy to see the article for this in regards to the TRX700XX. I was a bit agrivated when I recently read an article about Matlock Racing winning a race and they talked all about the team and the race, but did not even acknowlege he won on an XX. Anyways...if you read the article it adds up to like over $2000 for all the stuff they did. Just the Thumper parts total up to about $639. I guess this is ok if you're going big! 41cc of extra displacement is expensive! But on the good side, no new sleeve or case machining is required.


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post #3 of 17 Old 06-17-2010, 03:53 AM
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do you have a link to the review
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post #4 of 17 Old 06-17-2010, 04:28 AM
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How did they come up with the extra cc's?

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post #5 of 17 Old 06-17-2010, 01:48 PM Thread Starter
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Quote:
Originally Posted by VelociRaptor View Post
How did they come up with the extra cc's?
a 105mm piston.

Thumpers website listed the stock compression as 12:1 with their CP piston at 12.5:1, a stage 3 Hot Cam, PC5 and FMF Q4 with power bomb header rounded out the articles build.

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Last edited by vfm2010; 06-17-2010 at 01:54 PM.
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post #6 of 17 Old 06-17-2010, 02:06 PM
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Thats not 730 lol.
105mm is 727 and 105.5 is 734. I was thinkin they may have done some oddball 105.25mm piston or something.

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post #7 of 17 Old 06-18-2010, 09:51 PM
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That was a joke right,,,,,,,okay good.....
Quote:
Originally Posted by VelociRaptor View Post
Thats not 730 lol.
105mm is 727 and 105.5 is 734. I was thinkin they may have done some oddball 105.25mm piston or something.
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post #8 of 17 Old 06-18-2010, 10:22 PM
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yea i also read the article and thouht that stock compression was around 10.5 maybe i'm wrong!?!?! Sounds sweet but a little to rich for my blood/
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post #9 of 17 Old 06-19-2010, 02:11 AM
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That was a joke right,,,,,,,okay good.....
nevermind... I see what you're saying. For OEM displacement they round to the nearest class but for aftermarket the numbers are usually true to size. My apologies
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post #10 of 17 Old 06-19-2010, 02:30 AM
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does anyone have a link to the review
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