Lowering Springs for daily driving/occasional track use

[ag_supra]

Hey everyone,

I'm looking for some lowering springs that will function well for daily driving as well as 1-3 track days per year. Right now I am leaning toward the Eibach Pro-Kit, as it includes replacement bump stops. After looking at spring rates, the Eibach rear spring rate does seem pretty firm, though.

Does anyone have any input on this?

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[Rensuhlo]

HKS springs at stock height are you best option. Eibach is not very good. Supras don't like being lowered on track w/o the supplimental mods. HKS springs will remove the larger spring perch and allow a 18x10.5/7 wheel squared setup to be ran utilizing say a 275/285/295 sized tire.

 

[MisterSkiz]

Swift appears to be the firmest and was supposedly track tested along with the OEM dampers. From what other folks have posted here, the Eibachs are too soft and can cause rubbing on OEM dampers.

 

[ag_supra]

Swift appears to be the firmest and was supposedly track tested along with the OEM dampers. From what other folks have posted here, the Eibachs are too soft and can cause rubbing on OEM dampers.

Do you know if I would need to modify the stock bump stops in order to properly run the Swift Springs? I do like and appreciate how they were tested with factory dampers in mind.

 

[MisterSkiz]

Do you know if I would need to modify the stock bump stops in order to properly run the Swift Springs? I do like and appreciate how they were tested with factory dampers in mind.

I reached out to Swift Japan and Swift USA and obtained the same answer - "no".

"they were designed to work exactly with the OEM dampers and bump stops".

 

[Mk5phtm]

Do you know if I would need to modify the stock bump stops in order to properly run the Swift Springs? I do like and appreciate how they were tested with factory dampers in mind.

You can modify them but it’s not needed

 

[ag_supra]

You can modify them but it’s not needed

Are you running Swift Springs? Any photos or feedback or advice?

 

[Mk5phtm]

Are you running Swift Springs? Any photos or feedback or advice?

Yes I am. I think the drop is perfect but definitely much stiffer than stock. I daily my car and I think the ride quality is still comfortable. I didn’t modify the bump stops but have spoken to others that have

 

[ag_supra]

Thanks for posting the photos - your car looks awesome.

Do you have any issues with them? - e.g. rubbing, hitting the bump stops often, etc.

There are a lot of lowering spring options out there and it's almost a struggle with so many options. I just want to do my research as best as I can.

 

[Mk5phtm]

Thanks for posting the photos - your car looks awesome.

Do you have any issues with them? - e.g. rubbing, hitting the bump stops often, etc.

There are a lot of lowering spring options out there and it's almost a struggle with so many options. I just want to do my research as best as I can.

Nope not at all. Only rubs in the rear rarely when going too fast on sudden highway dips (around 85 mph). I have an issue with the the springs not being in contact with the strut mounts only when I jack up the car. But this is from me trying to install them the shortcut method. This doesn’t effect the ride at all, it’s just something that bugs me and when I lower the car back down, everything aligns back to normal

 

[kaj]

Just remember that the lowering springs are going to negatively affect your performance at the racetrack. Not a big deal, of course, as long you're not as competitive as some of us may or may not be ...



... But also keep in mind if you get hooked you will end up this way. LOL

 

[MisterSkiz]

Just remember that the lowering springs are going to negatively affect your performance at the racetrack. Not a big deal, of course, as long you're not as competitive as some of us may or may not be ...



... But also keep in mind if you get hooked you will end up this way. LOL

If you are on OEM tires, maybe.

One should put on a stickier tire to help with the now stiffer springs if you are going to track the car.

I was not a fan of how the car bobbed up and down during breaking/acceleration

 

[ag_supra]

If you are on OEM tires, maybe.

One should put on a stickier tire to help with the now stiffer springs if you are going to track the car.

I was not a fan of how the car bobbed up and down during breaking/acceleration

The current plan would be to run lowering springs and all seasons throughout the year since the car is my daily driver. Currently, my go-to is the Continental DWS06+.

I have an extra set of OEM wheels sitting in my basement that I will put some 200-treadwear tires on and I can swap them at the track.

Should I be worried about the lowering springs + all-season tire combo for daily driving?

 

[MisterSkiz]

The current plan would be to run lowering springs and all seasons throughout the year since the car is my daily driver. Currently, my go-to is the Continental DWS06+.

I have an extra set of OEM wheels sitting in my basement that I will put some 200-treadwear tires on and I can swap them at the track.

Should I be worried about the lowering springs + all-season tire combo for daily driving?

Not for daily driving - no. It will just be easier to get sideways in them if you want to.

You should see about getting an 18" wheel for the track...cheaper tires and lighter than OEM wheels. Look at Enkei wheels or OZ wheels - I think they are forged and priced well, but check me on that.

 

[kaj]

If you are on OEM tires, maybe.

One should put on a stickier tire to help with the now stiffer springs if you are going to track the car.

I was not a fan of how the car bobbed up and down during breaking/acceleration

Stiffer springs are fine if the rest of the car is built around them. Lowering the car is not. It throws off the suspension geometry, and these cars do not like that.
It will be slower.

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