Allright I ran on my slicks for the first time. love the traction out of the hole, but when I get to higher speeds (+25 mph) the car starts to sway back and forth, as if i have no sway bar. It got so bad that I got out of it, because I thought I was getting pretty close to the wall.

At first I thought I was spinning the slick on the rim, because I have no tubes/rivets, but I marked the tires and they didn't move (or if they did, they moved in a pefect circle each time) then I thought about my spohn drag bar needed to be adjusted, but then I remembered on the freeway, with my street tires, I get no sway at all. so something must be wrong with the slicks?

I got them balanced and the machine that they used both dynamically and statically balanced the tire/rim.

I'm lost... help me before I blow up my car.

 

How much air do you have in them? Sounds like underinflation.

Rich

 

At first I had them at 15, then I took them down to 11

 

I run about 13-14 pounds in mine. If they are underinflated it car they it feels like the back of the car is on ice. I learned this at Englishtown during a GM High Tech shoorout one year as the track "went away" toward the later rounds and I spoun off the line so the next round I dropped the pressure too much to try and make up for it. Fortunately the idiot in the other lane kept his foot in it too long and broke out so I survived to another round.

 

What manufacturer brand slicks are you running and what size? As pointed previously, sounds like under-inflation. If you put your street tires back on and everything is OK, then it is the slicks. Did you change anything else, like skinnies up front?

Also, did the problem get worst when you changed from 15 PSI down to 11?

WD

 

how much power do you have? If your under 400 you can prolby run 18 or so depending on suspension. sounds like you low on air

 

the slicks are mickey thompson et drags, 26x10x15. It actually felt like it got better when I took pressure out... but that could be because I did a better burn out after I took pressure out.

and i'm well under 400 hp.. hell I'm under 300 rwhp. my sig has my mods

no skinnies on the front

 

skinnies would help the sway and make it go straighter.......put more air in them, Tubes would help too, those tires are meant for tubes......they will easily break the bead....seen it happen before

 

i bet u got more then 300RWHP in her! come on now give urself the benefit of the doubt!

 

Not through that 9" he doesn't....

 

stop making fun of my underpowered car

 

Are you running normal street tires on the front?? That's probably why .

If you're running bias ply on the back, you have to run bias ply on the front too. When we bolt ET Streets (non-radial) onto my Dad's '73, with the street tires (radials) on the front, the back end feels all loose like that.

When I run my drag-radials on my '02, it feels no different than having street tires on it .

Run bias ply's in the front and that problem should go away.

 

i didnt kno that here too... good info... thank god im gettin ET Street Radials lol

 

Not necessarily true. I run bias tires on the back (ET streets or QTPs) with skinny radials on the front with no sway. The trick is to pump the radials up to maximum pressure then they will act more like a bais tire.

 

yea u should have max pressure in ur fronts neways.... less surface area