4x4 launch

[dbev24]

Did some 4x4 launches today and when I get into it the wheels hop really bad and goes hard left. Was just wondering what I could do to help with that. I'm on 33 inch tires with the torsion bars cranked alittle but not all the way, wondering if that could be my problem?

 

[i_keyser]

Cv shafts need to be flat or going up from the axle to the hub. What psi are you launching at?

 

[dbev24]

Like 8 psi

 

[02ilduramax]

the cv shafts need to be flat not torsion bars

 

[i_keyser]

Whoops yeah cv shafts not torsion bars. I'm an idiot

 

[dbev24]

Ok so it shouldn't hop if cv shafts are flat?

 

[Harbin_22]

Do you have sleeves or braces? What tire pressure. Spring clamps or traction bars?

 

[TheBac]

Did some 4x4 launches today and when I get into it the wheels hop really bad and goes hard left. Was just wondering what I could do to help with that. I'm on 33 inch tires with the torsion bars cranked alittle but not all the way, wondering if that could be my problem?

Yes to both your thoughts.

Plus you need to make sure both your idler and pitman arms are in good condition and that you have them both braced properly. A straight centerlink would be a good idea.

 

[dbev24]

Yea I have the cognito heavy duty tie rod kit and braces and I got a set of traction bars.

 

[dbev24]

Ok tried some more today and something isn't right it doesn't hop it just sounds like the front tires are squealing and it doesn't volume it should. Almost like the tires are pushing in? I'm lost on it now. Oh and I dropped the cv shafts to level to.

 

[07bluelbz]

Drop the torsion bars all the way down. Do you have lift keys? If your tires are squealing, it may be toeing in when you launch.

 

[Harbin_22]

Big offset wheels? Is the alignment good? Do you have the cognito braces pulled in as tight as they can? What's tire pressure?

 

[dbev24]

Ok I do have big offset wheels and the alignment was just done. I just installed the braces so they should be tight. Tire pressure is just what I always run. I have just stock keys

 

[Harbin_22]

I mean on the heim part, the nut on the heim side should be againt the heim. It pulls it forward as far as the braces allow. I am not sure how good the cognito tie rods are either, someone else with experience with them might know if they hold up to boosted launches