Siro TX-18

Old 06-04-2003, 05:13 AM
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Default Siro TX-18

Anyone have any familiarity with this engine? is it a good option for the T-maxx? I need a new engine and i don't want to buy another 2.5. How does it tune? easy? how fast. strong etc.
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Old 06-04-2003, 08:42 AM
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The shop owner where I race at just put in a new Sirio .18 in his brand new Sport Maxx. He said that it runs really stong and is not broke in yet so he will be able to lean it out more if he wanted to. It runs pretty cool and he said he likes it over the stock 2.5 as the overall quality is far better. I'm not sure if it is any faster but I'm sure he said the overall performance is about the same.
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Old 06-13-2003, 08:15 AM
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the one we installed in a truck down here seemed to have more low end due to the larger displacement and once broken in SLIGHTLY more top end, it REALLY woke up though when the owner installed the SIRIO pipe trinity recommends.
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Old 06-23-2003, 09:36 PM
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has anyone had any luck putting the sirio .18 on an HPI nitro MT?
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Old 06-23-2003, 10:55 PM
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Originally posted by jjandmr
has anyone had any luck putting the sirio .18 on an HPI nitro MT?
If you buy the Sirio .18 for the original T-Maxx with the standard crank. it will fit no problem
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Old 06-24-2003, 07:35 AM
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I bought it online, this is the link http://www.hobbypeople.net/gallery/838198.asp
It says it is the direct replacement for the trx 2.5 t-maxx. I also found a few other posts with guys that put the trx 2.5 on the HPI nitro MT. Hope it will fly....
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Old 06-24-2003, 03:26 PM
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that one won't work, u need this one

http://www2.towerhobbies.com/cgi-bin...?&I=LXEMR9&P=7

the one u ordered has a different shaft than what u need
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Old 06-24-2003, 04:30 PM
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check this. http://forums.rcinfo.co.uk/viewtopic.php?t=3545
This guy put the trx 2.5 with the ips crank on his NMT. The sirio I got is a direct replacement for the trx-2.5 as far as crank and dimensions. He simply had a few modidifations to perform on the clutch bell and flywheel etc.
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