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Thread: WHiteline KCA303M

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Posts: 1-10 of 34
2011-11-10 01:23:54
#1
WHiteline KCA303M
Hey fellas I just picked up a set of the whiteline caster bushings. These are the motorsport version.

I bought them online from upscale automotive. They got me the bushings for 86.81 shipped. I'm not sure if there is a place to get these for a cheaper price, but I just thought I'd share this with others. I ordered them on sunday and they got to me today. They ship out from somewhere in PA not South Carolina where Upscale is located.
2011-11-11 10:31:47
#2
Great Find!
Awesome find dude! Thats a great price too. Im really thinking about going with these myself! Besides changing caster and moving it on a B13, what are the benifits of these? Would they be practical? I have no doubt they are total quality. Are they made of a harder Polyurethane compound than the Energy Suspensions? Im guessing the Energy Suspension Bushings keep the control arm set up in the same place, from what I see and am learning is these move the hole outward changing caster. Would these be benifitional to those of us that are lowered slighty? Any Info would awesome thanks!
2011-11-11 16:43:23
#3
SHawn B has a suspension thread that explains the benefits of the increased caster. You should take a look at it. Mike Kojima aka choaderboy2 went over the benefits of these a few years back. I'm not sure if Mikes threads are on this forum but you can definitely find them on the original sr20forum.

Sorry man I'm not 100% on all the benefits of these. I just know they improve the handling of the car. The ES bushings do not alter the location of the control arm while these shift the rear shaft of the control arm toward the wheels.
2011-11-11 16:50:52
#4
When you move the rear of the control arm to the outside of the car it will increase toe-in. The whiteline caster bushings do this. Give you moar awesome positive caster.

After installing these, you should probably get an alignment done.
2011-11-11 18:30:47
#5
Originally Posted by Viprdude
When you move the rear of the control arm to the outside of the car it will increase toe-in. The whiteline caster bushings do this. Give you moar awesome positive caster.

After installing these, you should probably get an alignment done.


Is it safe to say that if you install these and already have a perfect alignment,that all you would need is a toe adjustment?

Or is there a preferred formula for aligning after putting the whitelines on?
i.e. different toe,caster/camber settings?
2011-11-11 18:41:01
#6
Whenever I install something that would change geometry of the suspension, I would do an alignment. A replacement, not so much. i.e. worn ball joint merits a replacement control arm or a blown shock absorber, no alignment for me. But an upgrade that changes what was, yes, I would perform an alignment. Just my opinion.
2011-11-11 18:45:42
#7
Originally Posted by TrackJunky82
SHawn B has a suspension thread that explains the benefits of the increased caster. You should take a look at it. Mike Kojima aka choaderboy2 went over the benefits of these a few years back. I'm not sure if Mikes threads are on this forum but you can definitely find them on the original sr20forum.

Sorry man I'm not 100% on all the benefits of these. I just know they improve the handling of the car. The ES bushings do not alter the location of the control arm while these shift the rear shaft of the control arm toward the wheels.

Here is a direct link to the Section on bushings.

Down on the bottom is Whiteline, and a direct link to the Kojima thread and information.

http://www.sr20-forum.com/suspension/1801-b13-b14-b15-suspension-information.html#post24089

Originally Posted by choaderboy2
http://www.nissanperformancemag.com/march06/whiteline/

I have been helping Whiteline develop a product for our suspension that is affordable, easy to install and fixes some painful suspension issues. We have tweaked the durometer for a higher performance version of the part based on testing in SE-R Cup and Autocross.

This bushing is great, even though its just a bushing, it goes a long way to fix three of our cars geometric problems in the front. I have been testing these on the Dog Car, Annie Sam has been testing them and so has Naji Dahi.

The caster and anti dive really improve on center feel, turn in and rotation under braking. You can feel these right away. It also gets rid of some of the lowered car axle compression issues and your axles last longer. These are especialy great if you can't aford the GC plates to get more caster.

I think the straight line stability improvements from the caster and the anti hop from reducing anti dive and lift (which is one of the things that cause hop) with the harder bushing make these good for drag racing as well.

I would get the new issue black colored harder 90 durometer KCA303M. The NVH issues are hardly any greater. This is harder than the Energy bushing. Best of all, its easy to install. Its not on the web sight yet so you have to ask for it.

Seriously, I think every tuned SE-R Street or otherwise needs some of these.


As you can see, Mike K highly recommended them for anybody on the street or a track. After that, I did not bother with the details/engineering, I simply bought a set. I bought Superpro, but IIRC Superpro manufacturers them for Whiteline, or vice-versa.

Mine have been on my car since my Hyperco/AGX install, maybe 5-6 years. Still working perfectly doing whateverthehell it is that they do.
Last edited by Shawn B on 2011-11-11 at 18-49-55.
2011-11-12 16:23:25
#8
This is fantastic Information- Thanks to all! So Im assuming that by getting These Whitline caster bushings, this would not affect the installation of a Progress control arm brace, or a Whiteline 4 point underbrace right? Just wondering since its moving the control arm for caster- just wondering.
2011-11-13 13:47:46
#9
Originally Posted by Sentra
This is fantastic Information- Thanks to all! So Im assuming that by getting These Whitline caster bushings, this would not affect the installation of a Progress control arm brace, or a Whiteline 4 point underbrace right? Just wondering since its moving the control arm for caster- just wondering.


It does affect the angle of the pivot bolt. I had to use a round rasp to wittle down some of the hole on the pivot bracket and the Whiteline brace hole (the round bushing side). It's not much, but it's just enough to not allow the bolt to slide easily in there. Don't force it in there or you'll booger up the threads.
Last edited by hammerin hank on 2011-11-13 at 13-50-54.
2011-11-13 14:06:03
#10
Nice! Once again- Fantastic information- thanks dude! Yeah i figured that the installation on these bushings would somewhat affect the install of either one of these braces- good info to know for all others that are planning the same install- its not exactly plug and play. Thanks again!
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