Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB

- Brakes, Suspension, Chassis (https://www.ft86club.com/forums/forumdisplay.php?f=48)

- - PERRIN Steering Rack Lockdown (https://www.ft86club.com/forums/showthread.php?t=53743)

Quote:

Originally Posted by TouchMyHonda (Post 1777809)

Granted, I did sway bars, coil overs and the lockouts at the same time. There is defiantly more feedback in the steering wheel. With that said, I am hyper sensitive to changes and I live in Chicago where the roads are SHIT. The locks outs certainly from my experience and driving environment feel like things are tighter and more connected with the road. It's a good and slight NVH in my hands more, than in my ears. Theses did not change cabin loudness.

I guess my questions for you is, what tires are you on?

I drove some more and I think I experienced more of the positive effects. The car seems more willing to dodge potholes at a split seconds notice. I do NOT hit potholes. I probably look like a drunk driver usually. So for that type of driving, this mod feels good.

I did some mid speed on ramps today and I was surprised I didn't feel much of a difference even at initial turn in.

Then on the highway I drove over a patched crack that ran parallel to the road and I could feel how smooth it was with my steering wheel. It almost felt slippery. I don't think I liked this. Then I noticed some vibration when coming to a stop in a wavy lane. That was no big deal.

I just don't think I noticed what reads like a night and day difference such as what PoWn3d saw. If I read correctly, him and I are both on stock tires.

Quote:

Originally Posted by PoWn3d_0704 (Post 1701663)

For spirited driving where you are actually holding the wheel and turning it and DRIVING the car, they are flat out amazing.

Quote:

Originally Posted by mfbmike (Post 1777845)

Details on the install? Looks straightforward - removing that one bolt and replacing oem stuff with the perrin lockdown. I see allen key holes.

Interested.

OEM bushings stay in place. Here's the instructions

http://perrinperformance.com/attachment/78833-.pdf

Quote:

Originally Posted by mfbmike (Post 1777855)

Just read Gopherboy's thread. For less than 100 bucks, what's there to lose?

I'll be picking up a set soon.

It's worth doing. I just over anticipated the degree of difference.

Well @Laika, you need to do a long drive. If you hit the freeway and drive for 1.5-2hrs your hands will start to get vibrated until they are numb. It takes a good long while, but it happens to me.

I drive from Eugene to Portland (Oregon) regularly. That is around a 100 mile trip. I usually start to feel it about 75-80 miles in.

Now, for comparison, my roommate has a mostly stock BRZ. (He has the Perrin Tranny bushing.)

His steering feels lighter than mine, and more digital. The solid brackets make the steering heavier. Something I enjoy.

Now, to get a SERIOUS feel for it, I have an AutoX this weekend. There, I will have...

My car: Perrin steering rack bushings, Perrin tranny mount, Perrin Shifter bushing, Perrin 19mm front and 16 mm rear sways with poly endlinks. Stock tires.

Roommates: Stock except Perrin Tranny mount.

Friend from out of state: Bone stock.

I'll make sure to pay attention while doing my runs.

Quote:

Originally Posted by Laika (Post 1779139)

Awesome. Thanks for the link.

I like the idea of more detail in steering feel but I am concerned about the health of the surrounding parts.

Has anybody used lockdowns long-term, possibly on other vehicles? Can you speak to the wear rates of other steering components which are bound to see more stress?

We run these on the Element Tuning Time Attack FRS and honestly there are no downsides, so easy to install, and fits perfectly. This helps to reduce the deflection of steering rack due to the rubber bushing with a bolt through it.

So the more mods you have to your suspension and tires the higher the degree of deflection you will get and it's very substantial with race tires, race suspension, and a big front sway bar. Think of this product as a strut bar for your steering rack in that it won't eliminate 100% of the deflection but will reduce flex in the bushing substantially. The good thing is that it doesn't eliminate all of the benefits of having a rubber mounted rack vs. a solidly mounted rack (harmonics, stress, zero give on impact).

I think I need a Perrin Steering Rack Lockdown for our STi Time Attack car as that rack shifts so much I'll come off the track with a crooked steering wheel :)

Thanks,
Phil Grabow

Yea, I've had mine in all summer, with both Track and AutoX time. No downsides at all. Just a quick, simple mod for the big effect.

Is there any reason to replace the bushings if you install these? These seem to essentially replace the bushings (even though the bushing stay in place).

Quote:

Originally Posted by YouShallKnow (Post 2131537)

Is there any reason to replace the bushings if you install these? These seem to essentially replace the bushings (even though the bushing stay in place).

Nevermind, read Perrin's response in their thread announcing this product. Minimal difference if you replace steering bushings.

Is it better to replace the bushings for stiffer ones than just adding the lockdowns with oem bushings? I see these cost twice as much than bushings but are easier to install.

Quote:

Originally Posted by yomny (Post 2261522)

Is it better to replace the bushings for stiffer ones than just adding the lockdowns with oem bushings? I see these cost twice as much than bushings but are easier to install.

Depends on your desired level of feedback/NVH.
It's not about which is better or worse but rather which of the three (OEM, polyurethane, and lockdown) is in your comfort zone.

Quote:

Originally Posted by N234 (Post 2261528)

Depends on your desired level of feedback/NVH.
It's not about which is better or worse but rather which of the three (OEM, polyurethane, and lockdown) is in your comfort zone.

I see, so the lock downs reduce the flex but not 100% like replacing bushings completely, therefore then increase in NVH is less? Thanks.

Quote:

Originally Posted by yomny (Post 2261552)

I see, so the lock downs reduce the flex but not 100% like replacing bushings completely, therefore then increase in NVH is less? Thanks.

Actually the lock downs are stiffest. The polyurethane would be the median. OEMs are marshmallows.

nobody experienced switching from the perrin to the solid bushing replacement or vice-versa ? I am curious to see if there is any differences.

the perrin kit seems to be so much simpler to install ;) I am temped.

i installed whiteline steering rack and pinion bushing, can i still have the steering lockdown installed? emailed perrin about this but didnt get any replies