https://www.evolutionm.net/articles/...five-handling/

Check it out and let me know what you think, guys. I'm having a blast with these!

 

I want a set now...

 

Great write-up Noize. The Ohlins are on my short list as I chart my course to transition my X to 75% track duty (still need to drive it to tracks). Sounds like CBRD was great to work with as well.

You didn't mention an RCK, was that because you didn't go much lower than stock?

 

Thanks, man. You're correct, I didn't go very low. Talked to Chad, and he said the RCK would be unnecessary. I need a little extra ground clearance where I live.

 

Same here. Unfortunately I can't go too low since my driveway is a bit steep.

 

Great read! What made you decide on the Perrin rear anti-sway bar over the others available? I'm only curious because I currently have a Whiteline but an considering changing to a hollow tube design to save some weight (such as Eibach or Cobb). I've installed quite a few Perrin parts on my cars and others over the years and have always been impressed with their quality (swaybars included). Did you go for just the rear bar for ease of install or because it's primarily a street car?

 

Awesome read! Thank you for sharing. Looks like CBRD is legit for sure when it comes to suspension. Sending coilovers all setup for your needs just to be put on is amazing.

Couple of things I do wonder. I've always thought about coilovers being somewhat useless compared to shock + springs for DD as there is no need for adjustments. An easy way to save a bit money as well instead of going with coilovers, unless you do track your car and then you have the ability to adjust it all as you want. Did you want to go with coilovers or looked into shock + spring combo?

Also, any idea why Chad suggested to go with Perrin on Soft setting on the sway? Like Kracka, I have whitelines. Had it on both my evos on medium setting and was extremely pleased, and the Eibach pro kit (just the good old lowering springs for a MUCH better center of gravity). Perrin medium setting is about WL soft setting. Just curious.

 

Chad is pretty pro-Perrin and had great luck with them. I've read bad things about other endlinks, and wanted to support a site vendor and go with something that was proven to work.

The Perrin bar is identical to the Progress bar, other than color, and I've run Progress RSBs on every Evo I've had. They don't clunk, are cake to install, and have been low maintenance for me.

My RSB is set of soft per Chad, so that's probably why no front RSB. The Evo chassis is pretty stiff, and I think with the now springs, I just don't get much lean at all in the front like I did stock. The good about a RSB will just cut down that much more on understeer, and I can't believe how neutral this car is with this setup. I really wish you lived closer so you could drive it. Lastly, Chad doesn't recommend a FSB with this setup.

I have been in so many lowered Evos, and I have never been in a car with springs that I liked longterm. I have felt a few that were alright when first installed, but really goofed up the stuts over time. The problem is, you don't feel this, because it's like being placed in warm water and brought slowly to a boil- it's gradual- and don't realize how much your shocks have eroded until you ride in a stock Evo and think, "What, what?!?".

RE the swaybars, these shocks and the spring rates are much stiffer than aftermarket springs, so I think you have to match to what you've built. I think a F/R sway combo would be appropriate on aftermarket mild springs and say MR Bilsteins. Right now, my car is about balance. With the rear bar on medium, I'd imagine it would be pretty easy to spin the car when AYC is in full transfer. Understeer is gone, oversteer is manageable.

 

Thanks for the questions and feedback everyone-

We use the perrin rear bar because it has stops on it to prevent it from moving side to side- I think Perrin may be discontinuing their product which would be ashame-

We dont use too much whiteline stuff anymore because we've had issues with the quality control and durability-

I generally recommend the Perrin PSRS kit set with max positive castor for best effect- its probably one of the best upgrade available for the evo 8/9/X

We arent huge fans on front sway bar upgrades on cars at this stage- and we start our clients out on SOFT on the rear bar so they have room for adjustment-

Please PM or email chad@cbrdspeedfactory.com- for Ohlins CBRD specific packages/pricing-

cheers

CB

 

How is the PSRS for street use? A solid bushings worries me when it comes to NHV.

If the Perrin is truly being discontinued I believe the Eibach rear bar is a similar 25mm with the bushing stays as well.

 

Its fine-

I dont notice anything negative-

We build cars to be fun on the street- not just track-

cb

 

Awesome!



I still lament that Perrin stopped making their bar for the CT9A.

 

Very interesting! I may have to look into that next time I'm due for an alignment.

 

Yep. When you install a PSRS, you leave the front bushing stock (because you need the "squish" to accommodate the slight offset in the rear). A majority of NVH comes in via the front bushing (since it is straight in from the wheel) and/or the strut, itself, so keeping the front bushing stock prevents a large increase in NVH.

With PSRS on the lower rear and good aftermarket plates at the top, you can get a lot of caster and not have to run as much camber. Win/win.

 

Thanks for the review on the Ohlins. I picked up a set of DFV's for my VIII a couple on months ago and am loving them. Winter is upon us so I will be throwing on a set of stock struts this weekend actually and I'm probably gunna cry. It sure beats letting them get beat up with the salt.

Since I have a VIII Im not sure how much of this translates over to the X but I'm on the fence with my RSB right now. Ive got a Perrin on the softest setting along with various bushings and the RCCK but Im not sure if the RSB is too stiff.

Chad- I was about to pull the trigger on is the Perrin PSRS but I keep seeing mixed reviews on it. What makes is so great? Is there any notching of my subframe or LCA needed? For a couple hundred bucks I will pick it up but I want to make sure it'll be worthwhile.