New hi-speed project - RC-Monster Forums

Mod Man · 04:53 PM

I have not read this entire thread, but I can tell you that 6S with a 1512 will not be enough to hit 100 mph. My TC4 (126 mph) would not break 94 mph with a 1512 on 6S no matter what I tried. I went to a 1515 on 12S and BINGO, 108 mph on the first wound out run.

Also, stock bodies have major problems above 90 mph.

What you will find is 80 mph is not hard to hit with modern motors and packs. 90 is tougher to hit and requires actual engineering to achieve. 100 mph is an order of magnitude harder and requires some significant effort and aerodynamic R&D. 120 is EXTREMELY difficult to hit! That will require well over 3000 watts, and some crazy tires (Personally I like BSR radials). Oh, to break 100 you will need at least 1300 feet, 800 feet to accellerate, and 500 feet to stop. Radio range fast becomes an issue as well as line of sight.

You guys here on RC-Monster are at an advantage because you are already used to running big power systems. I am glad to know there are top speed guys here.

Matt

Mod Man · 01.13.2008, 04:59 PM

A few pics.

Oh, top speed is crazy expensive! I bet it costs me around $20 for every full throttle run when you consider pack wear (I toast packs even on 12S), tire wear, mechanical wear overall, and the occasional encounter with nature.

Matt

jhautz · 05:48 PM

Holly #!@@!$&%!! Thats a serious speed setup you have there. Whats the top speed you have hit with that?

Where do you run that thing at those kinds of speeds. I cant find a parking lot big enough and smooth enough to do much over 70. I just run out of room. Any of the lots that are big enough arent anywhere smooth enough.

speedracer1129 · 01.14.2008, 09:37 AM

Quote:

Originally Posted by Mod Man

I have not read this entire thread, but I can tell you that 6S with a 1512 will not be enough to hit 100 mph. My TC4 (126 mph) would not break 94 mph with a 1512 on 6S no matter what I tried. I went to a 1515 on 12S and BINGO, 108 mph on the first wound out run.

Matt

I am curious, why would say this when Nic Case did his 134mph run on a 1509 with 8S in a TC3?? Obviously the power from a 1512 is more then enough to hit 100!!