[M3CeeSaw]

Originally Posted by m4ml

I currently have the KW V4 coil-overs and Fall-Line monoballs. Next Thursday EAS will be installing the SPL rear camber arms, rear toe links, and rear traction links.

Awesome I'm looking forward to hearing your feedback on the feel of the rear end under power and if there is a noticeable increase in NVH. Keep us posted

[m4ml]

Originally Posted by M3CeeSaw

Awesome I'm looking forward to hearing your feedback on the feel of the rear end under power and if there is a noticeable increase in NVH. Keep us posted

Bad news... I found out today that I got selected in a jury pool for a trial, so I had to cancel my appointment for tomorrow's install. Hopefully, either I don't get selected as a juror/alternate, or it's a short trial and I can get them installed next Thursday at least in time for Buttonwillow.

[OzDrives]

Tell them you can't make it because people on the internet are eagerly awaiting your feedback on an important car modification.

Originally Posted by m4ml

Bad news... I found out today that I got selected in a jury pool for a trial, so I had to cancel my appointment for tomorrow's install. Hopefully, either I don't get selected as a juror/alternate, or it's a short trial and I can get them installed next Thursday at least in time for Buttonwillow.

[tom @ eas]

Originally Posted by OzDrives

Tell them you can't make it because people on the internet are eagerly awaiting your feedback on an important car modification.

Priorities, right?

[M3CeeSaw]

Originally Posted by OzDrives

Tell them you can't make it because people on the internet are eagerly awaiting your feedback on an important car modification.

Exactly how inconsiderate! I'm not sure how I am going to be able to handle this. I'm writing to my local congressman to rectify this

[TselaG80]

any updates?

[tom @ eas]

Originally Posted by TselaG80

any updates?

We just completed installation of the SPL pieces yesterday, M4 is at alignment today. m4ml should probably be following up shortly or after his track weekend.

[TselaG80]

Originally Posted by tom @ eas

We just completed installation of the SPL pieces yesterday, M4 is at alignment today. m4ml should probably be following up shortly or after his track weekend.

hey Tom.

im interested in these arms and CS front sway bar. can you shoot me a PM

[tom @ eas]

Originally Posted by TselaG80

hey Tom.

im interested in these arms and CS front sway bar. can you shoot me a PM

You have PM.

[OzDrives]

m4ml - Have you had the chance to test out the rear suspension upgrades? Specifically interested if you can feel any difference when backroads/canyon driving.

[m4ml]

Originally Posted by OzDrives

m4ml - Have you had the chance to test out the rear suspension upgrades? Specifically interested if you can feel any difference when backroads/canyon driving.

I have! I haven't done any backroads/canyon driving since the upgrade, but I did have the installation done before Buttonwillow.

My point of comparison is between:

Chuckwalla
- stock rear
- -2.25° front camber, 3/16" toe-in/-2.0° rear camber 3/16" toe-in
Buttonwillow
- SPL rear upper (camber) arms w/lockout, toe links w/lockout, and traction links
- -3.2° front camber, 0" toe/-2.5° rear camber 1/8" toe-in

The SPL rear upper arms allowed for the additional camber in the rear. I already had the camber plates in the front.

The car felt better on exit after the upgrade. I felt more confident rolling into the throttle quicker and sitting the rear end down than I did at Chuckwalla. It also felt better in the longer sweepers, with more sense of what the rear was doing. Comparing something like turn 4/5 at Chuckwalla to Riverside at Buttonwillow (as best of a matchup for a long constant(ish) turn as I could find between the two); after a few laps at Buttonwillow I had more confidence in Riverside than I did in turn 4/5 at Chuckwalla all day, and I was able to throttle steer a bit better through it once I had that confidence. I also want to say that I could feel the car taking a set better in transitions, which also gave me more confidence.

Was it a HUGE improvement? No. Was it a noticeable improvement? Yes, but only slightly.

I can't think of a way to describe the rear before. I want to use the word "soft", but that's a bit hyperbolic. It wasn't soft by any stretch, it just wasn't solid and it wasn't necessarily consistent. Now the rear is solid and consistent.

With all of that said, I'm not much of an NVH kind of guy. I know what I did, and I know the consequences, so I really don't care. If you are an NVH kind of guy, I don't recommend the full upgrade. NVH has increased more so than any other upgrade that I've done.