Savage wheelie

tallus

Hi Guys, does anyone know what the right spur gear/clutch bell combination I should use to get my Savage to wheelie?
I have a nitrostar s25 engine, with a 13 tooth clutch bell and a 52 tooth spur gear.
Any help would be greatly appreciated

g5hn710m4xpdwy

i could check or you could goto http://forums.radiocontrolzone.com/forumdisplay.php?forumid=114
and learn lots while you are there trust me, huge frieldly forum go for it

tallus

cheers man :-)

g5hn710m4xpdwy

plus you are a member ther you posted about your stormracer there once:) i was gonna edit my post to say that but it was going so slow:v:

no leaf clover

hey, em ok... spur gear(s.g) clutch bell (c.b)
if you keep the same sized s.g and got a smaller c.b you would have faster acceleration and so wheelie...i think, or if you keep same size c.b and get bigger s.g same effect is given! ...jeez physics student and i still had to check a pm to make sure that was right!!!

tallus

Thanks NLC t's appreciated I have the highest spur gear and lowest clutch bell as far as I know. maybe it's a tuning issue ....

tallus

Ok my savage wheelies absolutely no problem on Grass, but not on concrete/tarmacadm.... I even got her in to 2nd gear while wheelie-ing earlier this morning it was FAB!, but still nothing on concrete/tarmacadm.
any thoughts guys? I know this is probably nothing more than simple physics, but I can't understand why, I mean if anything i get more traction on a hardened surface

no leaf clover

hey, i thought i pressed "post this" b4 but it didnt show up..so i think it may be because of the lack of friction on grass as the car throws itself back when accelerated, so on grass the front wheels hae little grip and there is more "thrown back" so on tarmac there is good friction so there is more put into the front wheels and less going back!! could make no sense or be irrelevant but i think its right

g5hn710m4xpdwy

i didnt entirely understand you thee nlc but i think it is: there is more grip on the grass do give it something o push of? and there is slight weel spinish action on the road (its concrete, trucks with those tires arnt really for the raod) am i right at all?:v:

no leaf clover

lol, i think its the other way around to make what i said alot simpler!!

coolwings

About the doing wheelies thing.
I don't have a MT so this is theoretical - but ....

If you were to move the centre of gravity a few millimeters towards the rear, popping wheelies would be easier, or to put it another way, it would lift it's nose with less torque/power.

Anyone tried sticking a small bit of lead on the back bumper?

g5hn710m4xpdwy

sounds like a good way to do it never thought of it like that

tallus

hmm good idea N

coolwings

I would guess that a more forward CG balance would increase ground effect for best speed, and too far back CG would make it horribly unstable.
There would have to be a "sweet spot" 5mm-15mm variation - probably more forward on rougher surface, and more rearward on smooth.
It was Tallus's mention of wheelies on concrete that made me think about it, but I haven't direct experience there.
I bet the competition guys play with this setting to get it optimised.

tallus

Ok, weirdly enough... took the savage out for a bash earlier this afternoon and it wheelied a couple of times on tarmac.... I'm stumped heh

g5hn710m4xpdwy

maybe its just the engine, the more u use it the more responsive its getting? or torky (i know its not a word )

tallus

Flunked wrote:

maybe its just the engine, the more u use it the more responsive its getting? or torky (i know its not a word )

was actually thinking that myself dude ... time will tell I mean it wheelied maybe three times on concrete and almost any time I try on grass.