Electric tips?

[oscaryu1]

Well hey, I have this race against this rather stuck up D) kid I know (we're friends ), but yeah, he's supposedly getting a "35MPH No I'm serious 35MPH" electric... pocket rocket?

Soo... he said if I wanted a race, rules were, I had to use that junked up electric pocket rocket frame I tried to convert (but I was still in my first stages of welding)... fail.

So back then, it broke in half alot, broke even more alot, and it was a POS.

So I have to take that, restore it, and battery rules were:

2x "Larger" batteries (I plan to screw him over - he thinks I mean the 12V 12aH batteries - I have 18V 7aH batteries that look exactly like it )

1x "Smaller" battery - 7aH battery, course, I'm gonna use a old UltraTech one of mine... or Endurine... they both survived 30MPH crashes and lots of scratches on them.

and 1x "tiny" "Boost" battery. Using a 7.2v Ni-CD battery from an old airsoft gun, wired in paraell with another 7.2V Ni-CD airsoft battery, then again wired in parallel with another set of wireless phone 3.6V batteries wired in series and then in parallel.

So yeah... any other tips to completely smoke them?

He's a... tiny... kid. 70lbs tops. I'm 140. Give you an idea?

 

[oscaryu1]

Oh and motor rules are 250W only. Using a new Currie 250W motor (for my eKart, but switched to dual 900W)

 

[jr dragster T]

Strap 10 D rocket engines to the back. Right when you pass him lauch the rockets.

 

[oscaryu1]

D?! A's are plenty for me O.O

Hehe, I took the rocket apart, and kept the explosive parts xD

Mixed them with matches and the afterburner part, gonna put a bit of gasoline in... light it and throw

 

[jr dragster T]

A's arent that powerfull at all. Makes my model rocket for 500 FT or so. Not much thrust to push a 140 lb rider and the choppor loaded with more batteries then Duracells warehouse.

 

[oscaryu1]

I'm not racing the chopper

I'm gonna buy a $1100 battery for it. Oh boy. Got a bit of savings up ahead of me. Lol.

 

[mattlepperd]

Well...he is half your size and weight?
Then you must cheat and cheat like a true champion.
You need batteries in the seat,batteries in yout pocket and a 6 volt lantern battery under your hat.
He is a bit bigger than the kids I ususlly fight so he might be wiry.

 

[freakboy]

I could drive it for ya im only 120

 

[mike75925]

as far as wiring up all those batteries make sure they will compliment each other. lipos (lithium polymer) need lipo stuff. see if you can get a big brushless motor. there's a r/c hobby shop or was at beltway 8 and 59 south, larry's out 45N @1960, m&m in the bellaire/west U area (on chimney rock).

 

[mike75925]

aerotech has some huge motors using nasa srb(solid rocket booster) mix, supposedly.

 

[mike75925]

oh yeah oscar an 'out runner'.

 

[oscaryu1]

The brushless outrunner motors? Yeah, my uncle uses them for his planes.

Read post #2 250W brushed motor only. 250W max.

 

[mike75925]

i read 250w didn't see brushed only. my bad!

 

[oscaryu1]

Lol yes... I'm screwed. So... any tips?

48V should just about blow the motor in a couple runs...

 

[Scumm]

Um if ur gonna cheat, just put the 250 housing on a bigger motor...

 

[jr dragster T]

For that matter just put a 250 sticker on a larger motor.

 

[mattlepperd]

This is the kind of cheating I like to hear about. Epic cheating.
EXCELLENT.

 

[mike75925]

can you run gearing? that 2 speed trans maybe?

 

[oscaryu1]

No "rules" on gearing. There's a 2 speed transmission for e-motors?

 

[mike75925]

should work for either 109dollars bmikarts, do you know your motors shaft size? or can you adapt it? 400907