el es tu

Ive been running the pfadt poly for a while with the the lower rear shock mounts in spherical

While theyve worked well with the provided grease, at this point the polys are binding really badly. Since Im going to be taking apart the entire suspension anyway to do new hubs and possibly a leaf spring change I am set on changing the bushings to something solid

Is the reliability of delrin equal to or better than sphericals? I rather not have to take everything apart again for a while.

Right now the ridetech ones look like a good choice - it seems the vansteel and phoenix are only a few hundred away from the cost of sphericals...

any input is appreciated.

Thank you

Mark@AMT Motorsport

FYI we'll be doing an exchange program for our spherical kit probably within 6 weeks. Don't know what your time frame is. But deal will be you send me your control arms, and I'll send you back control arms with our spherical bearings already installed and ready to put on your car. Control arms will be glass bead blasted and looking brand new. No down time waiting for bushings to get installed. Intro price will be $2000. We're using Radial wide series bearings which are the best you can buy for this application.

Nokones

I'm running the SPCs on my C4.. They are adjustable and not that expensive. You can get them from Mike Maier, Inc.

RichieRichZ06

I'm a firm believer in doing it once and right the first time. I've had the LG mono ball bushings in our C6Z for 3 years now and they've worked flawless. The car is raced frequently and runs a mix of slicks or 200 tw tires depending on what we're doing. We install a lot of them and I always get positive reviews on them based on the increase in feedback from the car and how quickly it reacts to steering input. There is a night and day difference in poly compared to mono *****.

v10climber

I've got the Borg Motorsports Offset delrin bushings in my c5 currently and they've been fantastic. Might even be better than sphericals because there is zero maintenance. We'll see how long the delrin ones last. I'd be curious to hear opinions on the advantages of the spherical bearings over delrin. I know some cars have to go to a spherical in certain locations because delrin will bind. Delrin seems to work fine everywhere on the C5.

Whis9

I am using the Vansteel in my 06Z

love them and very well made

completely transformed handling

charger21

Another vote for Vansteel delrin bushings. I have heard of a few bad experiences with the Ridetech bushings.

el es tu

So Ive been looking into everything further and pricing it out. Id love to run spherical bearings on the arms but the cost is so high its going to hit the budget to where Im going to have to avoid replacing either the balljoints or the sagging rear spring.

If there was something offered in spherical that was a bit lower cost than whats currently out there that might work.

As far as the ridetech - I thought they fixed the issues with their stuff with new hardware. Has anyone had any direct experience with their product?

Thanks for all the replies!

0Rodney@ridetech

You are correct, everything is lined out. We haven't had any trouble since the revision.
I'm a true believer in the Delrin, I've been running Delrin in my daily driver for over 5 years. It's not a Vette, but it weighs about twice as much and is the reason we used it for a test dummy when we started messing with Delrin. We check them periodically for wear and tear, but have never replaced them. Still going strong after all the miles I have racked up on them.

crimlwC6

Put a used Pfadt kit in my racecar 4 years ago. Some of rears have needed replacement in the last two months. Love them. Wish the customer service was a bit better.

crimlwC6

To be clearer, just the bearings have needed replacement. Pfadt sells the refresh kits.

sperkins

RideTech delrin all the way. They support grassroots racers.

Racingswh

I would do these and at some point will myself. Very nicely done.

chetly

Can you get more than -2.5 in the front with spherical bearings? Im leaning towards the Lane Borg Motorsports offset bushings myself. Im wanting to run -3.5 in the front and -3 in the rear.

Mark@AMT Motorsport

I've got -3 in the front with mine. Don't think you're gonna get -3.5 without the offset bushings but that's a heck of a lot of neg camber with solid bushings.

rfn026

This is the old story. Racing is cheap. Winning is expensive.

Spherical are better than delrin. How much better? How badly do you want to be on the podium?

Here's a good rundown on spherical bearings.



Richard Newton

Racingswh

What benefit do you think you will realize if you do that?

c5racr1

That's a lot of camber with spherical bushings. What is your set up?

sperkins

I've run sphericals and I've run delrin. No difference in performance.

Borg Motorsports

You can get into the mid to upper -4.x in the front with our offset kit. About 1 less negative in the rear. Chassis differences will determine the final max amount you can get and obviously with the stock adjustment methods (eccentric bolts) you are still balancing your camber and caster values with each other.

I get EXTREMELY even tread wear on both front and rear. No issues with shoulders wearing out regardless of the tire brand. You'll also see an increase in grip on the skip pad (i.e. sweepers) once you tune the settings to the specific tires you are running.

You also don't have to compromise on camber vs caster as much either. On the stock setup, you might be able to get a certain max negative camber, but your caster won't be equal so you have to back off to make the alignment settings symmetrical. The offset bushings remove that compromise and allow you to run pretty much whatever settings you want. Think of it more in terms of the available adjustment range and not the max camber values. Instead of being able to adjust (for example) from +1.5 to -2.2, you can now adjust from -0.8 to -4.5. You don't have to go to -4.5 obviously, but that is a much more usable range of adjustment than stock, especially for a performance oriented car.

Honestly, the biggest difference for me was in the rear. I kept adding camber and it kept putting power down better and better. I run maxed out in the rear on my car (-3.5) and slightly less than max in the front (-4.2). Keep in mind that is on an autocross car.

Generally, I recommend the standard (non-offset) kit for track day cars and road course work and the offset kit for autocross. Autocross is basically a skid pad competition so biasing the setup toward max lateral g, even at the expense of some longitudinal grip is acceptable. For track work, you need more braking grip so you will generally run less camber. That said, I do have some customers running the offset kits on track because of specific alignment/tire tuning issues and they have been very happy with the results.

Let me know if you have any other questions.