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Finnster · 06.20.2007, 10:37 AM

The gearing is a bit low on your XLs. For a 8XL, a 16.3:1 FDR is about perfect on my Revo. I can tell you from radar testing that an 8Xl in a MT will do ~41 mph properly geared w/ good cells. The 6.5 is quite a bit slower, but eh 4.5 may be a bit faster, but is tempermental to gearing and will fry otherwise. I would think a 9XL should be 38-40mph realistically.

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Finnster KillaHurtz Offline Posts: 2,958 Join Date: Apr 2006 Location: Bucks Co, PA	06.20.2007, 10:37 AM The gearing is a bit low on your XLs. For a 8XL, a 16.3:1 FDR is about perfect on my Revo. I can tell you from radar testing that an 8Xl in a MT will do ~41 mph properly geared w/ good cells. The 6.5 is quite a bit slower, but eh 4.5 may be a bit faster, but is tempermental to gearing and will fry otherwise. I would think a 9XL should be 38-40mph realistically.