Rolling race - Alignement setup for grip

[Mr.Luppi_A90]

Hi guys,

(pick of my car for attention)

I want suggestions for have besg alignment for my car and avoid to feel mickey thompson floaty on the road at high speed, this is my current setup:

17X10.5 +39 with 305/45 et street T
Hks lowering springs
Hardrace toe arm
Megan racing traction link
Rapid design diff brace
Front and rear sway bar

can you suggest me best alignment value for have grip (800whp) on straight without sacrificing a lot corner when i swap drag pack to regular wheels and how to have mickey Thompson feels safety even at high speed.

appreciate help from everyone

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[razorlab]

305/45 drag radials on only a 10.5" wide wheel is giving you the floaty feel.

Toe-in will help the rear stay in line though.

 

[Mr.Luppi_A90]

305/45 drag radials on only a 10.5" wide wheel is giving you the floaty feel.

Toe-in will help the rear stay in line though.

11 inch would be better? Why all run 10.5 or 10.25? Can i resolve eventually floaty problem even with this wide?

 

[ntfrendlyGR]

I run 305/35 Nitto nt55rt on stock rim at 30psi and get zero float. In fact over 130 they feel better than stock tires. I don’t push the car to limits on the off ramps but they feel stable there too.
Here’s my current alignment specs. Went from over 2.5 in rear to 2 and noticeable difference rolling on 3rd. Still spin but a lot better

 

[coldtires]

I run 305/35 Nitto nt55rt on stock rim at 30psi and get zero float. In fact over 130 they feel better than stock tires.

I could be wrong, but I would assume that is because you are still on a 19 inch wheel, 35 side wall, and 30 psi.

That is impressive you have a 305/35 on the 19inch wheels, how does it look like on the car? And genuinely curious, how's the contact patch?

 

[Mr.Luppi_A90]

I run 305/35 Nitto nt55rt on stock rim at 30psi and get zero float. In fact over 130 they feel better than stock tires. I don’t push the car to limits on the off ramps but they feel stable there too.
Here’s my current alignment specs. Went from over 2.5 in rear to 2 and noticeable difference rolling on 3rd. Still spin but a lot better

Interesting! I guess i will try for when i swap drag pack (i have 305/35 too as daily setup) thanks also for share the alignment spec, i really appreciate

 

[Hasan]

You don't need a lot of camber for straight line traction

 

[Mr.Luppi_A90]

You don't need a lot of camber for straight line traction

Not much camber? I was thinking to go around -1 actually

 

[ntfrendlyGR]

I asked for 1.50-.75 but with only stock adjustment 2 was all it would go.

 

[Mr.Luppi_A90]

I asked for 1.50-.75 but with only stock adjustment 2 was all it would go.

Camber arm so are needed? Are you lowered?

 

[ntfrendlyGR]

Just front camber plates. I drive car maybe 1500 miles a yr so not really worried about it. About to order 6969 so maybe after that.

 

[Mr.Luppi_A90]

Just front camber plates. I drive car maybe 1500 miles a yr so not really worried about it. About to order 6969 so maybe after that.

Ok because i have rear toe arm and traction link, no other suspension mods

 

[licklobster]

"floaty" is a product of no belts in the tread center and a soft sidewall, it isnt something you can align out.

They drive far better at 16-18psi then they do at 30.

 

[Hasan]

Not much camber? I was thinking to go around -1 actually

Thats not a lot. As your rear squats, it will increase.

 

[Import111]

I am lowered on Swift springs and rear camber is - 1.8 to - 1.9. I am debating Megan adjustable rear camber arms to get closer to -1.2 or so to help straight line traction. With 420whp & stock tires 1st & 2nd gears are spin City.

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