xpndbl3

iTrader: (5)

With this jegster torque arm everyone is mentioning to me to step up to a 28x10.50 ET drag in a stiff sidewall. When are stiff sidewalls necessary?

1bad406

iTrader: (1)

I run them, but only because my 28x10.5 w's were wadding up real bad and the stiff sidewall gave me a little better react on the pro tree by not wrinkling as bad. M/T just recomends the stiff sidewall for heavier cars.

This is straight from their site.

"The advantage of a stiff sidewall is less tire wrap or sidewall distortion, thus reacting better at launch. Note: This is good for heavy cars, or cars with a suspension, that can absorb the initial launch. If you are running a fixed suspension car like a dragster or an altered, you would need the tire to absorb the launch, thus a softer sidewall. There are two ways to stiffen the sidewall. 1. Run tubes to help support the sidewall. 2. Matching the tread width with the wheel width, or going 1 wider on the wheel width, will stiffen the sidewall."

xpndbl3

iTrader: (5)

Well this jegster torque arm is a shorter arm and is supposed to really punish the sidewalls and hit the tires hard, which is why I'm debating the stiff sidewall. Figured I'd ask around if anyone had a pro/con for running them with my kind of suspension setup. It's all double rod ended chro moly suspension so there isn't any give in this setup at all.

1bad406

iTrader: (1)

can't help you there, I run the spohn full length torque arm. I just know the stiff sidwalls helped my 60ft times.

AlkyIROC

It's recommended that a heavy car, 3000+ pounds use a stiff sidewall tire. You could also run a regular tire with a tube.

My new tires are a stiff sidewall and I don't run tubes.

xpndbl3

iTrader: (5)

So basically since my race weight is over 3000 pounds I should use a stiff sidewall regardless of suspension setup? Why do 90+% of heavy vehicles still use the regular sidewalls then?

AlkyIROC

Because they're supposed to be running tubes in them.

1bad406

iTrader: (1)

I still run tubes in my stiff side wall slicks.