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Old 02-09-2008, 03:31 PM   #1
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Default Axe Rossi Cobra Evolution X1 carb settings

I was just trying to find out the factory brakin carb settings?

And I would also like to know a general carb setting thats being used when its race tuned?

thanks
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Old 02-10-2008, 04:14 PM   #2
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Run it real lean for the 1st 4-5 tanks! then you can start to race tune You better get that suka ready, friday is coming real fast homie
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Old 02-10-2008, 04:38 PM   #3
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If your trying to rush the break-in, good luck. The Axe Rossi P/S sets take about 1 gallon to free up and stop locking up. As for factory break-in settings, there really are none. You'll have to tune the needles with a high idle and check the temps. The HSN and LSN will be different for the temperature and fuel you use.
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Old 02-10-2008, 05:36 PM   #4
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I found the factory needled setting on my X1 to be a little lean (for me) for the break in. I fatten my HSN way up and slowly leaned it out as I would run each tanks there mine. Mine took at least 1 gallon before I couldn't feel metal to metal friction between the P/S.

But like ezveedub said, it will take 1-1.5 gallons to fully break in. If you rush it you will greatly reduce the life of a very nice race motor.


I just switched over to the new Bryon's Gen2 fuel, and raced it yesterday. I had to lean the (HSN) 6 hours, and my X1 ran Crazy
fast! After running in the 20 minute A-Main,(Finished 2nd) it temp'ed
at 220. (Usually in the 230-240's) Pitted @ 8.5 minutes, and could of
probably made 9-9.5 if need to push it that long. So your needled setting will very depending of the manufactor of nitro you use.
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Old 02-10-2008, 06:06 PM   #5
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thanks guys i was trying to see where my current neddle settings compared. i am running odonnel and my hsn is 3 3/4 out and my lsn is 5 1/2 out. a little rich i think but i only have 1/2 gallon in the engine. with these settings i get plenty of smoke.
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Old 02-11-2008, 01:34 AM   #6
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Hope this helps.
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