Front end feels "floaty" over 80mph WOT

[venumous]

It does come from the rear. I put on a set of Bridgestone RE-11s and is much improved. Plus some Swift springs. To the OP, do you have progressive or linear springs?

Factory Perf Pack springs. I would think the rear springs (not the front) are more the cause of the issue with the weight transfer, right?

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[Tommy V]

Factory Perf Pack springs. I would think the rear springs (not the front) are more the cause of the issue with the weight transfer, right?

I think what he was getting at is we added alot of weight to the front end of the car ,which could swaying rear feel unstable in the rear.No expert on geometry but thinking changing to a set of springs either up front to deal with more weight ,or rear to deal with the swaying in the rear of the car.I could be wrong though lol.On a side note my started when i put my drag radials on ,which was before my procharger install.

 

[venumous]

I tend to think it is the DRs as well being that I don't remember it being the case while was street tuning on the P Zeros (though they tended to spin a bit, haha).

 

[Getdownonit]

I tend to think it is the DRs as well being that I don't remember it being the case while was street tuning on the P Zeros (though they tended to spin a bit, haha).

Ya, I have DRs and don't have any issues at high speeds.

 

[Doctor Fishtail]

Factory Perf Pack springs. I would think the rear springs (not the front) are more the cause of the issue with the weight transfer, right?

Honestly get a higher spring rate linear spring and I betcha a S/C that your issue will go away. If ya don't want the Swifts get the BMR handling set. All BMR springs are linear.

 

[Laztug]

i'm stock suspension non pp with stock tires, i've been over 160 with no issues yes it does lift the front but that just tells me the rear is planted

Liar.
My stock suspension felt like I was driving a yacht. Steeda springs fixed that issue.

 

[Ponderthis]

I have this same issue, feels almost like something's loose.

 

[Edyuly]

I am having the same issue also. Was gonna see if an alignment fixes it .

 

[venumous]

Glad it's not just me. If you guys correct it let me know.

 

[Guard5.0]

I added SC and lowering springs right off the dealer lot and can tell you that adding power to the stock dampers with lowering springs was BAD. In curves, stopping, under acceleration (particularly powering through or out of curves.) You could literally feel the oscillation in the rear and the float in the front. A bunch of BMR stuff and coilovers later the car is very stable. If you're going with someone's lowering springs try to match them with some good adjustable dampers on all corners.

 

[Kahboom]

Turning the steering to sport helped me out a little but still just a tad of float but not as bad as it was before.

 

[chedder]

Did I read that right, you are complaining about the car floating when you have different tires/manufacturers at each end. Bad, bad, bad. Different side wall flex and harmonics will cause that. And you don't mention tire pressure. Same front and rear, side to side. Alignment and stance balance. All part of a planted car.

 

[venumous]

Im not complaining, I'm making an observation. I'm talking about straight line acceleration only. NEVER had a problem on either of my Cobras with the same tire setup with the same power, which also have IRS. Rears drag radials are at 30psi as they have been on my other cars. I know tons of people personally that run drag radials on the rear from Nitto and another manufacturer in the front including C5 Z06s, C6 Z06s, G8s, 4 Gen Camaros, CTS-Vs. None of them have this issue, has nothing to do with this.

 

[chedder]

Venum, you missed the point. Many things go into having a balanced car. Most track rats explore all venues to ensure best performance. The original story line did not indicate this was done. Out west we do not allow cars with different mfg. labels to run on the track. We've had Bad experience doing that.

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