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SpEEdyBL · 05:09 PM

Lets forget about the calculations for now. How do you know a 15 tooth is the right pinion. It could be a 12 tooth and calculated speed would only be about 55 mph. I think Edumkated radared his 1512 1.5D on 4s on 5s and he had speeds of 60 and 70 mph respectively. The Castle-Neu 2650 on 5s has about the same rpm as the 1.5D on 4s.

I plan to run the 2650 on both 4s and 5s for bashing. If you have to use this motor for racing, a high capacity 3s pack would be more suited. If only Castle came out with a version of the 1512 1.5Y, that would be great for racing on 4s-5s.

	(#11)
SpEEdyBL "Out of spec" enthusiast Offline Posts: 820 Join Date: May 2005	01.13.2009, 04:52 PM Lets forget about the calculations for now. How do you know a 15 tooth is the right pinion. It could be a 12 tooth and calculated speed would only be about 55 mph. I think Edumkated radared his 1512 1.5D on 4s on 5s and he had speeds of 60 and 70 mph respectively. The Castle-Neu 2650 on 5s has about the same rpm as the 1.5D on 4s. I plan to run the 2650 on both 4s and 5s for bashing. If you have to use this motor for racing, a high capacity 3s pack would be more suited. If only Castle came out with a version of the 1512 1.5Y, that would be great for racing on 4s-5s. Check out my custom converted 8ight: Sub 7lb, lowest CG of any 1/8 buggy http://www.rc-monster.com/forum/show...894#post367894 Area 52 Ranch Raceway T.R.C.R. Last edited by SpEEdyBL; 01.13.2009 at 05:09 PM.