gearing spur gear
 

is it better to use a big spur gear 86 spur or 83 spur 76 spur which is the smallest 76 spur gear . what do people use bigger spur or smaller spur gear and a bigger pinion gear or what:confused:

:confused::woot::)i use biggest spur and smallest pinion, then pop wheelies and ask how to stop it cuz im racing!!;):cry::thumbsup::thumbsup:

dont be funny. i am asking for help use a big spur gear. and what size pinion do you use on a 2 wheel drive . i dont want it to wheelie no good if it does that . it my first time i am going to race help me plz anybody . no funny comments thanks :lol:

Im using a 3t pinion with a 358t spur on my lawn mower, hope this helps!

joker i need help daz plz. no funny comment help me out plz mate its all new to me racing:confused:

Just to confirm, its a flymo with large capacity collector box. Have made the wire longer as well so i dont need a extension lead. Hope this helps!

VXL help yourself out. When asking a question give a bit of information.

What Car is it ?

What Motor you running ?

Where are you racing indoors/ outdoors etc.

You get funny answers because of the type of questions you ask !!

madrat with a 4600kv and traxxas vxl esc the motor is a 8.5 turn motor . and a traxxas bandit mamba with a 3500kv motor or a 4300kv motor. which 1 will be better and what about the gearing spur and pinion gear ect .:confused:

racing outdoors :thumbsup:

Racing indoors / outdoors ?

At a certain track ?

Or just bashing ?

i am going to try and start racing but bashing as well :confused:

going to try but need to sort my car out first . plz help me with the gearing spur and pinion ect :confused:

I don`t run either of those cars or those electrics, I run a Cat SX and X6 with LRP electrics.

But can someone help now please as all the info should be there now :thumbsup:

I sure someone will help

1 motor is a 8.5 turn in the madrat. that fast with a 21 pinion and 81 spur. and traxxas bandit with a 10 turn or a 9 turner . do people use standard gearing big spur gea. and pinion what size ect:confused:

Is this any help

http://www.traxxas.com/products/elec...peed_chart.jpg
http://www.traxxas.com/products/elec...ndit_specs.htm

it is but i am using the traxxas stuff in my madtat vxl esc and a 4600kv 81 spur and 21 pinion gear its fast . but the traxxas banit got a mamab max with a 10 turner vxl motor. with a 76 spur and 23 pinion is not as fast . what does punch mean .do i have to put the punch on the esc by setting it on the com :confused:

Its tough for most people to advise you as most guys here don't run the models or electrics that you do. Your trying to get a reliable race setup for models and electrics that are primarily designed for bashing.

"3500kv motor or a 4300kv motor" doesnt mean very much to the majority of us. We run motors ranging from 5.5 to 8.5 in our buggies.

Speaking personally, i just stick with one spur gear and change pinion dependant upon the track. Changing spur gear just gives finer adjustments in gear ratio. Larger pinion is faster top end. If you go too large then you may end up overheating your motor.

Its all about discipline with your thumbs and lots of practice. Dont be concerned with top speed, just try to be accurate and not crash. Its far more important than outright top speed.

I use 23/81 with a Novak 7.5L in my B4FT if thats of any use.

I know nothing about any of your models im afraid.

1 of my motor is a 8.5 and the other a 9 turn ands my spare 10 turn

The best thing you can do is just take all your stuff down to the track and the racers there will sort things out for you. Its hard to guess about a car we dont really know. Its just a case of trying what you,ve got to find out what best suits the track you will be at. A lot of the lads have allready said they will lend you pinions etc and help you out, sojust turn up and enjoy.

thanks i got loads of spur gears and pinion gear today for the traxxas . but the mad rat is faster than the traxxas ? i think it because i using a 10 turn and gearing is 76 spur top speed for top end and a 23 pinion thanks mate :thumbsup::thumbsup:

punch control is a setting that changes how aggressive the car acts under acceleration, so lets say there was 3 settings, 1 being, smooth acceleration off the line, 2 being, little bit faster of the line, 3 being floor it wheels spinnig and spins out of control of the line....basicly

with the ratios, go with what u got, see wat happens. on the straights u want to be at full throttle with some tracks and the gearing u have atm u wont be able to hit full thortle too fast there for u try a small pion or bigger spur, vise versa. u would stick with the spur u have and get a punch of pions

more teath on the spur slower top end faster acceleration
more teath on the pion faster top end slower acceleration

hope this helps

edit god im slow at typing... guys already covered it oops

dan

thanks bogit and rich d

got some pinion today but wheel spin all over and slide on the grass .pinion i got 16 /17/18/19/20/20/23/25/28/ and 86 spurs and 83 spurs:thumbsup:

spur is 76 for top end and top speed on the traxxas . i think a 83 spur or 86 spur would be better:thumbsup:

really depends on track size you goin to run at, stick to one spur, personally the smallest one u have, then change out the pinions, like i said the aim is u want to be able to hit full throttle on the straight, u can have a really fast car but get on a small track u will never be able to hit your top speed, so smaller pinon this will make your top end less but will be faster on the track, it will make it faster out the corners, and u will be able to hit full throttle on the straight and control it nicley

i will be running my mad rat soon with a 4000kv motor, im sticking with the stock 80t spur and will get a punch of pionos for diffrent tracks

ive got on the traxxas 76 spur and 23 pinion and the madrat 81 spur stock i use that and 21 pinion fast hell 4600kv = 8.5 turn . i was got to use a 9 turn in the traxxas insend of a vxl motor 10 turner

i think it would be better with a bigger spur gear like a 83 or 86

spurs are like fine tuning, try them all if u like say if u use the 86t u will have a u will have a wider range of pinons witch is good, with the mad rat i would stick to the stock spur tho, i have no experience with traxxas

what u running lipo ? 2cell ?

lipo torndao 3500kv and a trackpower . would you use the 83 spur cost the madrat 81 spur and a 21 pinion a lot faster 4600kv and traxxas it a 3500kv till i put my 9 turner in it tomorrow

whats your aim ? u want both of your cars to be the similar speed ? the madrat feels faster than the traxxes ?

with a bigger spur you car will go slower top end but increase acceleration

i think it because of the spur gear for top end speed 76 spur on the traxxas but bigger spur will give more acceleration and speed with a 23 pinion

yer, and the kv rating on the motor makes a difference in speed to, higer the kv faster (+heat) it goes to an extent

best thing is turn to the track with your both cars bunch of pinons, try them out, the guys there will point u the right direction

thanks mate :thumbsup::thumbsup:

There are often other factors, large spurs can be just too big to fit in, they also push the motor away (if you see what I mean) and change the balance, this can be used to adjust setup, for the madrat I would look at B4 setups for your track surface and motor size.

Have you looked at Elvo's pages, http://users.telenet.be/elvo/

thanks mate its for the traxxas with the vxl esc

Have you looked at Elvo's pages, http://users.telenet.be/elvo/[/quote]

Simon.. Give this a good read. It will answer a lot of your questions:D