calvinlc

OK, so on my rear suspension I need to replace all the bushings. Since I am tracking the car I would like to go with something on the stiffer side but I do not have the money to go with all Banski stuff.

So, I would like to do the poly thing all the way around but I have read about possible binding in the dog bones with poly and that the bushings can "ovalize." So I am thinking about rubber here or possibly biting the bullet for the Banski stuff just to replace the dog bones.

One question on the Banski stuff. If/when I have an off-track excursion are these pieces as tough as the stock suspension pieces?

Thanks.
--Calvin

JrRifleCoach

Its a Corvette.
If your concerned about "Ride Quality" buy a Buick!

Go with poly and enjoy the renewed responsiveness of a great American Sports Car!

It all depends on what you hit. IMO about the same.

calvinlc

You notice I didn't say anything about ride quality, as a matter of fact I said I wanted something on the stiffer side. Ride quality is not my concern. My concern is the side loading on the dog bones ovaling out the polyurethane.

mtnmanut

i have an 84 and i installed prothane red all around, ,its been about 3 yrs and no problems

jaa1992

My poly bushings have been on for three seasons of road racing and the poly is not ovaled out. Still looks like it did when I installed it.

dizwiz24

I have all banski stuff in the rear suspension and it improved handling and the ride.

I believe it improved ride because it now transmits all shock thru the spring/ shock instead of through the bushing/ frame.

All this said though, but I still have stock rubber on the front. Though I did put in solid front sway bar end links and a 32mm z07 sway bar.

Also too, I have bilstein z51 shocks

All this effort imrpoved handlihg w/o sacrificing ride quite a bit.

JrRifleCoach

Actually I was refering/responding to a poster who has since deleted their post.
A point he made was regarding ride quality when moving away from rubber.
Sorry about that Chief...

calvinlc

No apologies necessary

93VettePilot

I've had bad luck with with poly on A-arms. I guess its ok for areas with not alot of twisting/movement.

dizwiz24

why bad luck? did you use plenty of that grease?

Ive heard they recommend a marine-type grease (that sticks around).

Id like to know because I will be going poly on the front at some point.

Sidney004

I have had more than my share of off road excursions on a heim jointed suspension; no problems other than almost hitting a wall!

PLRX

Ive done that mod and used plenty of Marine grease. Soon or later the grease will wear off and it will make that damn noise.

Rob31

I have poly in everything except the rear Toe links which are Banski . One year of abuse and the rod ends are still tight .
Banski stuff is pretty good .

93VettePilot

Here are some pics of my BMR A-arms off my Trans Am. They were only on the car for 2 years. BMR made it right though. Yes they were greased with synthetic grease. So I guess you can see why I think poly bushings are crap. These poly bushings wallowed out like playdough.

klkordzi

Have you considered making your own arms with rod ends to replace the dog bones rather than going the Banski route.

Alan777

I loved my banski suspension. There was virtually no binding, and it dealt with bumps in the road a lot better. With crappy Monroe shocks and stock rubber, the rear jumped around. With all banski+Bilsteins+bigger swaybar, the car felt a lot more planted. It's expensive, but it's great stuff.

dizwiz24

[QUOTE=93VettePilot;1579092723]Here are some pics of my BMR A-arms off my Trans Am. They were only on the car for 2 years. BMR made it right though. Yes they were greased with synthetic grease. So I guess you can see why I think poly bushings are crap. These poly bushings wallowed out like playdough.

What would you run then (what would you replace ozone cracked bushings)?

With OEM stock rubber ?

Or is there another alternative?

93VettePilot

I think the OEM stock bushings are the way to go. Very durable and very flexible.

tunedport85inject

what about delrin?it's possible to have delrin worked on a lathe to create your custom bushings,this material is very responsive and harder than prothane or urethane...another way is teflon bushing,the stiffer way for responsivity i belive....forgive confort


description

Delrin®* is a general-purpose, homopolymer acetal. Acetal is valued for its low moisture absorption, dimensional stability, machinability and strength. Low coefficient of friction and good bearing characteristics also describe this material. Acetal is a good choice for applications requiring strength and wear resistance. It also is ideal for submerged parts, outperforming Nylon 4 to 1 in these situations. Acutech Acetal meets ASTM standard D4181 and D6100.

engle1147

I've run the stock rubber, poly' and rod/heim joint setups (VB&P stuff) over the years. IMO the heim joints are the only way to go if your serious about maintaining suspension angles/geometry. I've had some issues with the FK rod ends holding up/wearing out....as they wear out I been swaping them with the "teflon" lined Competition Engineering rod ends which seem to be a excellent alternative so far.