View Single Post
Old
  (#96)
Mod Man
RC-Monster Carbon Fiber
 
Offline
Posts: 156
Join Date: Nov 2007
01.14.2008, 10:09 AM

Nic is a good friend of mine. We have gone over this subject for many hours on the phone. He really lucked out with that setup! Even he says that. He had the sweet spot found for that motor and power system. Since then, he has not been able to duplicate that run! This year, after and entire year of R&D, his top speed was 126 mph. He went all the way up to a 1521 on 12S and still could not break that.

When we talked about S count, we both found that 6S seemed to be good for 90mph (we both went down that road), but 8S or higher was needed to break 100. Now, bear in mind, top speed is a funny thing. Nic also held (still holds?) the world record in drag racing running only 5S (I believe 114 mph in 132 feet). But, that car does not want to wind out more than the 132 feet.

This is such a funny hobby to mess with. I can tell you that a 1512 on 6S is capable of some high speeds. You may hit the perfect sweet spot. But, that is hard to do. I put hundreds of runs on my car with various setups (motors, chassis, suspension, gearing, lipos, ESCs, bodies, etc, etc, etc) and found that most changes netted a loss of speed. So, I wouls change that back and try something else. When I did make progress, it was one MPH at a time. Be prepared for ALOT of R&D.

Oh, Nic also ran his own hand made body with a super low CD for that car. That seems to be the single most important thing other than perfectly matching the motor to the pack to the gearing to the tires.

You will get there. It will take alot of time, though. That is the fun of this!

Matt
   
Reply With Quote