mbx6 rear hub positions

[daniel366940]

hi on the rear hubs of the mbx6 what does runing the upper and lower holes on them do to the car please ??

[Sam Gibbons]

I see quite a few quick lads using the upper hole now I'd also like to hear what they have to say.

[daniel366940]

i dont think you get much response on this forum to be honest

[slow coach]

i run the lower hole generally as my local track is very bumpy and medium to low grip, when i race on astro or smoother i use the upper hole generally, should give you an idea.

[wardy]

Hi ,

Its all down to the roll centre of the car . In theory on a smooth track, low roll center and rough track high roll center.  So running the rear hub carriers upper hole mounting position gives a lower roll center and the higher position a higher roll centre.

There are many factors that effect the roll centre of the car and not just the rear hub positions but if you are suffering from low grip at the rear end of the MBX 6 then try the upper hole  of the  rear hub , use a long camber link and use the lower camber position on the shock tower .  Also try 3 degrees kick up on the rear . More anti-squat generally makes the rear of the car more sensitive to throttle input. The car has more steering while braking, and also a little more powering out of corners.

On high-traction tracks, it may feel as if the car momentarily has more rear traction accellerating out of corners.
Also a car with more anti-squat can also jump a little higher and further, and it will soak up bumps a little better, off-power.

Hope this helps

[daniel366940]

thanks for the reply so moving the hub up has the same effect as moving the link down is that correct ??

[wardy]

Yes just more effectively as its a bigger movement on the chassis