Jump to content




I'm a handling guy, always have been. I love the curvy roads and will go out of my way to take those every chance I get. I started autocrossing cars back in 1973 and have continued off and on for all these years, and the love of driving has only increased as I've gotten older. And it's not just turns, I also want a car that can stop much faster than it can accelerate. This one does it all.

In the stock form, this car will pull a steady 1.03 g's on a skidpad, and many people have never even been in a car pulling 1 g much less anything more. But... if it can pull that much stock, it can pull more modified. 🙂 Therefore, since I cannot leave well enough alone, I must do something about this. 😜

So, I'm keeping it relatively simple. I'm not trying to go crazy with anything I'm doing, since the car already does everything so well, it's all about enhancing. So two suspension changes and new wheels and tires, that's it. Since the car already has shocks better than anything I could buy elsewhere, those are left untouched. That leaves the springs and sway bars. I've looked at multiple spring sources and have narrowed it down to three companies, Renick Performance, Eibach, and Weaponsxmotorsports. I was speaking with a fellow ATS-V owner today (thanks Michael!) and his car uses Eibach springs and exactly the same wheel/tire sizes (his are Forgeline F14's) that I will be using. Take a look at how the spring/wheel/tire combo looks. I'd say perfect, but that's just me.  🙂 




Here's how the stock wheel and tire sizes match up to the new ones that I will be running. I don't have the weight of the new wheels but I believe the front is around 21 lbs. 


Once I decide on the springs I'm going with I'll be good to go. I'm also checking on sway bar sizes. The factory list different bars so it's difficult to judge what I need to get. It appears the front bar is  a hollow 29 mm OD and 4.6 mm wall thickness. The rear is 25.4 mm with a 3.81 mm wall, and both are made from SAE 1020 equivalent material and the bars are heat treated and shot peened. It is hard to get this kind of information about the aftermarket bars, but unless I do, I'm not spending the money to get any. 

The tires will be Michelin Pilot Sport 4S tires and these are warm weather only tires. Tires make a tremendous difference in handling and the performance varies widely between the various brands. The Michelin's are considered to the among the best if not the best high performance street tire.


The Pilot Sport 4S is Michelin's Max Performance Summer tire developed in cooperation with some of the most demanding vehicle manufacturers, including Audi, BMW, Mercedes-Benz and Porsche to utilize key technologies engineered during competition in the 24 Hours of Le Mans. It was designed for serious drivers looking to maximize the performance potential of their sports cars, performance sedans and powerful luxury vehicles. The Pilot Sport 4S excels in warm dry and wet conditions, so like all Max Performance Summer tires, is not intended to be serviced, stored nor driven in near- and below-freezing temperatures, through snow or on ice.

The asymmetric tread pattern of the Pilot Sport 4S features side-by-side, 24 Hours of Le Mans-derived compounds. The low-void outer shoulder utilizes a new dry-focused hybrid tread rubber for improved dry handling and braking over the previous generation tire, while the center ribs and inboard shoulder feature a silica-infused wet compound designed to increase wet braking performance. The computer-modeled Variable Contact Patch 3.0 optimizes pressure distribution across the contact patch through turns, reducing hot spots and improving tire life during aggressive use.



As soon as I can get a little more information, I'll update this. The springs are out of stock no matter who you go with... they must all be made in China. 😉 




Recommended Comments

There are no comments to display.

Add a comment...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Posts

    • Good morning! The mostly sunny days will give way to clouds and rain beginning today, and those chances will continue through the middle of next week. As you can see from this water vapor image, the moisture has returned to most of the southeast, and that moisture combined with daytime heating means afternoon showers and thunderstorms.    We're still focused on Cristobal and how it may effect our weather in the coming days. Right now he is still wandering around the Yucatan Peninsula (apparently lost and in need of directions) but is expected to make a left turn and head out into the Gulf of Mexico. The general thoughts haven't changed and Cristobal is expected to make landfall in Louisiana as a tropical storm on Monday.    Exactly what that means for us will depend on the track of Cristobal. We will be on the wetter side of the storm, but the models vary in the exact details. Here's a look at the Euro and GFS precipitable water guidance, and while they agree in principle, the details differ.   I now have everything working again, the automated messages and flowing and I've turned on the tropical messages. My weather station data is online and the webpage is updating correctly now. I think I have all of my data reset but I'll check in a day or two in case I need to clean up some more. All I need now is to get the webcams installed and I'll be in business. Hope everyone has a great Thursday!  
    • We need some rain for the gardens up here!
    • Good morning! Yesterday was a preview of summer, so I hope you enjoyed it. 🙂 Today will be similar but our rain chances begin to go up this afternoon, and by tomorrow the rain will return. None of this is from Tropical Storm Cristobal... yet. 🙂 As you can see in the water vapor image from around 5:30 AM, the moisture is on the increase for our area and once the rain arrives, it is going to hang around for 6-7 days. Oh joy!   Tropical Storm Cristobal All eyes are on Tropical Storm Cristobal as it meanders around the Bay of Campeche for the next couple of days. It apparently likes that area and decided to extend its stay, much to the chagrin of the folks that live there.   But it will start moving, and once it does, the central Gulf looks like a nice place for it to travel to.               The Euro storms tracks, notice fewer red lines today, which means more likely a tropical storm and less likely a hurricane.  And this tropical storm force wind probability image shows a pretty good chance of this scenario happening.    Moisture will be driven north and where it goes is anyone's guess right now. Here are precipitable water loops from the GFS and Euro.   At this point, the main threat for us will be heavy rain, and that depends on the exact track that Cristobal takes. Here is a look at the 10 day rainfall totals from the GFS, Euro, and Canadian models.   You can see that those areas just to the east of the eventual track show the most rainfall, so exactly where Cristobal goes determines that. And since we don't have a crystal ball for Cristobal we'll have to wait and see. 🙂 NWS Atlanta doesn't have a lot to say about it at the moment.   I should have the rest of my computers working today, and the automated messages should start flowing again. I still need to remount the weather station in its permanent location and get the anemometer mounted on the roof, but it is transmitting live data now.  So enjoy the sun while you can, the clouds and rain are going to wipe that away for a while. Have a great Wednesday!
  • Create New...