Visit The Dirt Forum for More Information

Author Topic:   Wheel Backspacing ???
Rino
Member
posted February 15, 2002 12:32 PM
Here's my question:
Is it better to get all the same backspacing on your wheels and Adjust with spacers?
or....
Get different backspacing on each corner?

Also, If the later, What backspacings are best?

Thanks, This site is excellent!!! Rino


Machinah
Member
posted February 16, 2002 04:29 AM
In my opinion it is best to have wheels with different backspacing. I could be wrong, it may not make a difference. I've always heard that it is safer to have no spacers and I assume that it has something to do with breaking wheel studs.

What I'm thinking is...
If you space your wheels, you are moving the lugnuts farther away from the hub and exposing more of the stud. This should place more stress on the stud, increasing the probability of the stud breaking. I would think that the more uneven torque given to the lugnuts, the more probable that you would break a stud.

I am really just making an educated guess here. I can't run spacers because of rules at my track, but I would be interrested in hearing from someone with a more positive opinion.


Machinah
Member
posted February 16, 2002 04:44 AM
By the way... I have learned from previous topics that the wider your front and the narrower your rear, the better, because it will tighten you up out of the turn.

If you use 2" backspace on both of your front wheels, it will widen your front.

On the back, more space on the left and less space on the right will give you the proper offset. Find out what the fastest cars at your track are using. The banking and conditions at your track will dictate how much offset you will need.


blanep
Member
posted February 16, 2002 09:21 AM
I think the biggest problem with spacers is actually the contact surface between the wheel and the spacer itself. There was an article some years ago in either SCR or CT that dealt with this subject. I can't find it right now, but they had cut up a bunch of wheels and spacers and had pictures of the crosssections showing how some wheels and some spacers just didn't fit well together. There was small gaps on some between the spacer and the lug nut area of the wheel that couldn't really be seen except for when you sliced them in half and could see the profile. The end effect is that the wheels can actually rip out around the holes (they had pics of that as well). Anyways, it was an interesting article and if I stumble across it I will list it.


Back to the Archives