stop wheelies

[teamorsum96]

i needing help with my SWB shark.i want to stop it doing wheelies, i no that it could be down to a few things.
im running
tekin mini rage brushless with 6900kv motor
vb 1300mah 7.4v 2s lipo
70wt shock oil,4hole piston in rear,green springs
70wt shock oil2hole piston in front,green springs

any help would be great

[frogger]

Only really 2 things you can do since the car has no slipper.

1. Go easier on the throttle. Seriously, set your expo on your throttle by around -30% so that the kick doesn't come in so hard. Or if your ESC allows it select a softer profile.
2. Loosen the rear diff a little. Unfortunately that also means rebuilding the diff more often as the balls/plates will become your slipper and wear out quicker.

[teamorsum96]

Originally Posted by frogger

Only really 2 things you can do since the car has no slipper.

1. Go easier on the throttle. Seriously, set your expo on your throttle by around -30% so that the kick doesn't come in so hard. Or if your ESC allows it select a softer profile.
2. Loosen the rear diff a little. Unfortunately that also means rebuilding the diff more often as the balls/plates will become your slipper and wear out quicker.

it does have different throttle profiles so could try that
as for the diff, if i cant get used to the throttle profile right i can back the diff off, as i rebuild it after most meetings.

so you dont think it could be down to my rear shocks been abit to firm as well?

and cheers

[leeleefocus]

If you soften the rear it will make the wheelies worse. The rear will squat more transfering more wieght over the back and making the front lighter.

Reducing front droop will help although it will start to affect other handling traights.

I had to dial mine out with throttle profile when i was running SWB.

[teamorsum96]

Originally Posted by leeleefocus

If you soften the rear it will make the wheelies worse. The rear will squat more transfering more wieght over the back and making the front lighter.

Reducing front droop will help although it will start to affect other handling traights.

I had to dial mine out with throttle profile when i was running SWB.

i will dial the profile out at next meeting this Saturday and if that do est work
i can stiffen back up then, i have put a SC18 shell on hoping that the front screen will help a bit(with it been further forward)then on the buggy.

[frogger]

If at all possible pickup a long wheel base chassis and drive shaft and convert it to LWB. It's one of the best upgrades you will ever make.

[teamorsum96]

Originally Posted by frogger

If at all possible pickup a long wheel base chassis and drive shaft and convert it to LWB. It's one of the best upgrades you will ever make.

i have fort about 1, but im not sure, only because the hall we race in is small or do you think i would benefit from it still?

[mrspeedy]

What you need is some lead up front, that'll do it

Or go LWB like Lee said and then you can fit an Optimus shell too

[rondoolaa]

i agree with loosening rear diff or at least having the front tighter than the rear,

thats what i did to stop mine doing wheelies,

also once when it was doing wheelies i couldnt stop it, until i noticed that the driveshaft had sheared right where it goes into the front gearbox, all looked normal until i held front wheels and had no movement when i put power in motor

[teamorsum96]

Originally Posted by mrspeedy

What you need is some lead up front, that'll do it

Or go LWB like Lee said and then you can fit an Optimus shell too

i hope that i can get it sorted this saturday, and will be using the new SC shell,hope that works better.
i do really like the Optimus shell as you no lol

[Jason A]

Hi the following can be done diffs to prevent wheelies

Front diff set to 1/8 turn back from fully tight
Rear diff set to 1/4 turn back from fully tight

Also set your throttle EPA to under 100% maybe around 75%

It is not always about top end speed but cleaner driving and better lines

[teamorsum96]

Originally Posted by Jason A

Hi the following can be done diffs to prevent wheelies

Front diff set to 1/8 turn back from fully tight
Rear diff set to 1/4 turn back from fully tight

Also set your throttle EPA to under 100% maybe around 75%

It is not always about top end speed but cleaner driving and better lines

im finishing rebuild car tomorrow, because cba at the moment lol but i will try these setting

cheers

[teamorsum96]

hey, just got back from racing, backing the rear diff off did work, still got lots work to do to make it prefect but was much better