TOPIC:

Edou wrote:

Holy badword, how awesome is that!
That'll launch (or shred) the Hornet...
What factory produced it? And how's your dyno doing btw?

Dyno is going great, I'll be posting a full thread with different motors etc. Like a technical section.

my brother has bought me these for my birthday,
reckon they will make the hornet look a bit better
www.ebay.co.uk/...2512wt_821

Dude, those are awesome. And huge btw - the same size (2.8") that's on my Manta Ray.
It says 1/10 but they're really more like 1/8... and a big wing will also fit very well with them.

cant wait to get them, should make a HUGE difference in looks and speed. may have to look into a bigger wing but will wait until i fit the wheels first and see how it looks

I know you really don't believe in gearing, but with those wheels you are going to have a real problem - it'll be massively overgeared, so although theoretically it'll give a much higher top speed, I don't think the motor will ever there. Hopefully the ESC will just "thermal" - i.e. cut out - before the magic smoke escapes, the heat from the motor melts the gearbox or your wiring melts though

The 105mm diameter - close to the 115mm of the Pumpkin/Lunchbox does suggest an obvious solution though - the 10 tooth, 0.8 mod, 17mm long pinion for either of those cars & part # 2 off the "D" sprue ... that 10mm tyre OD difference will mean the gearing is slightly low for a 27T silvercan, but I wiuld think nearly perfect to take advantage of the higher revs of that 23T you're waiting for.

I did have a look though my spares piles, but I don't have the pinion or the D" part - sorry

Big wing ... I can see that ... but I would have thought wheelie bars & a paracute pack might be more appropriate

thanks jonny for the tips, the motor i have fitted that was in the hopper, 480 has a 10tooth pinion so i will have to see how it runs. what is this D part you are mentioning and what does it do?

agemax wrote:

thanks jonny for the tips, the motor i have fitted that was in the hopper, 480 has a 10tooth pinion so i will have to see how it runs. what is this D part you are mentioning and what does it do?

Lunchkin "D2" is the spacer that moves a 540 size motor into the right position so a 10 tooth pinion will mesh with the spur gear ... I'd forgotten about the 480 motor - not something I've had any experience of, I guess the revs/torque profile of that are something like 2/3rds of the way between a 380 & a 540 ... I'm really not sure how it'll react to bigger wheels ... just give the motor the "3 second" test after a couple of minutes - if you can comfortably hold your finger on the motor for 3 seconds, it's not too hot

ok thanks for the advice. my hopper has 85mm diameter wheels and with the 480 motor in it ran all day with no problems, but that has the mitroniks ESC not the tamiya one you sent me.
i will just have to cautiously try it out for a bit and see what happens

WOWEEEEEEEEEEEEE, the wheels turned up today and boy what a transformation
it looks awesome now, makes the hopper look like a midget!

from the side,

front and back and top views,



finally one shot comparing them to the old wheel size!

going to take it for a spin this afternoon, see how it goes

I'm curious what it would look like with the monster wheels on the back & the weeny ones on the front