RR98ITR

I'll try...but do I have to give up the whole "I"m the greatest" thing too?

Scott, who has screwed up a few things harmlessly enough to learn curious truths about the sensitivity of his seat of the pants...noticing something is one thing, but figuring it out can be another...

chrisb

Wanted to upload a pic of the production compliance bearing set. The bearing sleeve and bearing retainer are tack welded to the housing. I run the PCI setup in the rear and admire the quality of that part. Hopefully racers will find my parts to be at the same level. Sorry for the poor quality of the pic though. I need to get some professional product pics taken.

JuanTushag

thoes look awesome , i like the chamfered inserts that ensure range of movement!

Jenkinsal2

After reading on these PCI bushings I am curious as to how much they will help me get some rotation in my autox car. I am a tinkerer and always like trying new ways of getting the rotation out of my car. Is this dynamic toe in problem more high-speed transition related or would these help me get rid of that toe in with low speed as well? Thanks!

Lo-Buck EF

the first time i saw a compliance bushing (i had a bunch of ef's; no compliance bushing) i thought that needed to be spherical. it just screams bind. glad someone has made some.

descartesfool

Just curious.

Bushing is called a "compliance" bushing, presumably for a reason. With the spherical bearing, compliance is of course lost.

So is compliance necessary, or can it be removed at that point in the suspension?

RR98ITR

If you're not unloading the inside rear enough to lift it, you probably need compliance in the front LCA.

Scott, who does have a mean streak...

chrisb

Compliance is necessary on a street car for the purposes of reduction of NVH and I imagine to keep a car from being "darty" over bumps and other road imperfections. But I don't claim to be a suspension engineer. However, the results in testing on Zsolt's car were remarkable.

slammed_93_hatch

What andrie was saying about the compliance not needing to be spherical is because the inner LCA and the compliance are in the same plan and both only operate on one axis which is the same.

So the SB in the compliance doesn't need any range of motion to not bind.

Brian from PCI was the first to point this out to me, and then I saw this to be true on my car.

It was easier to do the SB though.. As I don't know how you could do a bronze setup in there. Or derlin.

Building a sleeve and welding it into the bushing was easier, expensive but I knew what to do. (Made a set around 2006-2007)

The compliance bushing does what the raduis rod does on the EF/DA. It limit dynamic toe change under acceleration/braking/cornering. Just like the radius rod SB does.

I've been running mine since 06/07 love how it transformed the car, never had any issue either.

Be sure to tq and check the inner LCA and compliance often with a SB in those points.

Atmosfear

iTrader: (18)

How much and where to buy?

Andrie Hartanto

In this case spherical definitely not needed. It is suppose to move only one pivot action or rotation. Thus why my comments on using delrin for this part for cheap and effective solution. Same case with front upper control arm. No need chamfer either, if it moves in that direction, you're in trouble

Nothing in the back of the civic can be delrin, though.

Andrie Hartanto

Oops, Jimmy already explained what I meant.

Andrie Hartanto

The part I posted was the one for EK subframe which are different than the one for EG/DC (there are no housing for EK). I made the comment that yours looks similar to the one I built in 2006 when I used to ran my Civic with EG/DC subframe and I posted picture here back then. Mine was a lot rougher, yours is a lot nicer. I also experimented with offset hole to try to gain caster that way. But that creates its own problem as it makes the forward bearing pivot on different axis than the compliance bushing. I lost the pictures when my server crashed. But the part is still in the car that now owned by Graham Downey. I also built similar part for a few HC racers, among other Benny.

BTW Scott,
you'd love my new toy. check out my website
I saw that on some ALMS team, thought what a great idea and so I made one.

chrisb

I hate delrin. I personally think it is garbage and does not belong anywhere on a race car. But I admit that is a bias I have. But at the end of the day I would rather pay $210 for my setup or another like it, than nearly that much for some crappy plastic and bronze sleeve.

The other thing I have wondered about in terms of benefit of SBs is this. You can move the front suspension on my car up and down with one or two fingers with the shocks/springs out. This is not the case on a suspension with "high quality race plastic" like delrin. It can take 100+ ft/lbs of pressure to move it. Isn't freeing up the suspension itself an advantage? Plus aren't you making an assumption that the delrin setup is properly oriented in the same axis as the front pivot? Looking at the setup on Zsolt's car it seemed to me that it might not be a fluid movement throughout the range because of the way the delrin and bronze sleeve were oriented in the housing. I may be over thinking that but I know that the SB is going to move freely and without bind axially for the same price or a hair more than glorified recycled milk jug material. I like peace of mind.

P.S. I love the setup plates. My CNC guy just made those for Krohn Racing here in GA and I would love to make a set for my car.

RR98ITR

Hmmmm...nice. But do you have one of these?

Austin

I have these Spherical Compliance bushings for my car, I've just had too much work as of late to post up some pictures. I'll be posting some pictures when my life calms down a bit, and hopefully some good impressions from the Honda Challenge race that is scheduled this weekend at Sears Point.

Austin

jasonb

For a car that see's about 99% street time and about 4-5 track days a year, would you guys recommend just sticking with OEM rubber for the RTA bushings?

-J

Lo-Buck EF

nope. i'd still rock pci's.

98SpecR

^x2

descartesfool

I think the FLCA compliance replacement bushing should be made of Torlon. No more movement and no need to replace it once it's in there.

Lo-Buck EF

anyone else try them? i spoke to some west coasters that weren't so happy with them.

exgr

This thread is a golden nugget. Fast forward to 2016, now there appears to be at least 3 solid RTA bushings.

- ESM
- ASR
- PCI

Chris @ KPM continues to make awesome spherical kits for people but I don't believe he currently makes any RTA setup? I'll have to ask him... I'm going with KPM full sphericals on the delly and looks like I gotta pick one of the 3 for RTA bushing.

I actually have a set of brand new rubber Hardrace RTA bushing (not installed yet), and I think they do make solid ones too...

FormulaIntegra

I'm curious about Spiff's comment that his compliance bushings are not IT legal (from 2010). Was that then and this is now? As I peruse the current GCR (2017), it says bushing materials are unrestricted, so long as no modifications of the suspension component for their installation are required.

This makes me wonder if the bolt on RTA sphericals from Blox, PasswordJDM, PCI, and the like don't meet this requirement, as the RTA needs to be drilled to mount them. Any opinions?

I need to replace my 10 year old ES poly's and would like to go sphericals all around. Hardrace make's a nifty pillow block compliance joint, but I want to be legal.