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Old 05-29-2008, 11:37 PM
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Default Sirio S21 CL7B STI Tuned

What do you guys thing about this motor?? I am done with V-specs with the second one blowing the conrod out. Anyways, has anyone ran one of these and what do you think?

http://www.amainhobbies.com/product_...ducts_id/20015
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Old 05-29-2008, 11:58 PM
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There are a couple of guys who run CL7B's on the Lst forum. Here's a link to the vid..http://hdrcvideos.com/forums/viewtopic.php?f=11&t=14123
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Old 05-30-2008, 08:08 AM
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I run that motor, at first I could not get a good tune, but found that the plugs I was running was the problem it runs great now with the sirio 2057 an a os. 8 plug might not be the best plug but its working, an make small adjustments. As far fast, its very fast no problem with speed
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Old 05-30-2008, 08:13 AM
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from what I am seeing with my Sirio is that it prefers hotter plugs....
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Old 05-30-2008, 05:41 PM
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You definitely do not need a "tuned" version of the engine. Plenty fast from Sirio. I am using an ultra hot plug in mine with a Sirio 2013 pipe. Runs well at 200 degrees and idles forever. I think it's a great engine.
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Old 05-30-2008, 05:44 PM
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Nevermind, guess I should have followed your link before I typed. I was thinking an aftermarket company was "tuning" it.

Yeah, that motor will be a good one.
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Old 05-30-2008, 06:12 PM
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Great motor for buggy or truggy lots of power real good runtime I prefer running it with the 2013 pipe
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Old 05-31-2008, 02:14 PM
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great engine...dont listen to peoples plug choice...i found with my rossis that they like the o.s. 8 but with a turbo plug they like the p3...run the plug that makes ur engine run
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