Poly suspension bushings - (15 years of use review) (Page 2/2)
DimeMachine FEB 11, 09:24 PM

quote
Originally posted by Frenchrafe:

Yes "a lot more power" is at least double the stock HP, starting to get towards 300+HP.
The stock rubber bushes give the nicer ride quality but will be severely pushed when cornering hard with semi slick tyres and more power!

For the squeaking problem, I'm like Raydar and use copious amounts of silicon grease. So no squeaks!

To Dime Machine / Toys 4 Life:
I enjoy your videos. Thanks.

PS: Just noticed that your rear A arms don't have the little poly cup that stops the arm from sliding forwards or backwards on the outside of the bushes?
You don't get any movement front/rear?

Regards,
Rafe




1. I use as much lube as will stay in there when you push the sleeve into the bushing. It is a very snug fit so after only so much, any extra lube is just going to get scraped away and not fit inside the bushing/sleeve fit. Mine are quiet - for about 1.5 - 2 years- then they start being obnoxious.

2. Thanks for the compliment - much appreciated.

3. The poly cup you are referring to - I did not get them with my kit - which irritates me. That having been said, they have not moved. I do recall (now that you mention it) being concerned about that possibility when I first installed them LONG ago - but so far no movement... I should have mentioned that in the Video...

Cheers!

[This message has been edited by DimeMachine (edited 02-11-2021).]

Trinten FEB 11, 10:32 PM
Here is a guy who figured out how to modify his suspension to make it easy to grease his poly bushings. Obviously there is always going to be some level of concern with structural integrity, but when we think about all the other things we cut up, drill into, etc on our cars... an interesting idea!

https://rallyways.com/6316/...-miata-installation/
DimeMachine FEB 12, 08:38 AM

quote
Originally posted by Trinten:

Here is a guy who figured out how to modify his suspension to make it easy to grease his poly bushings. Obviously there is always going to be some level of concern with structural integrity, but when we think about all the other things we cut up, drill into, etc on our cars... an interesting idea!

https://rallyways.com/6316/...-miata-installation/



Thanks for sharing!
I wouldn't worry about it failing in any catastrophic way.
Would be interesting to see how it worked out for him after a few years.
reinhart FEB 15, 11:44 PM
I've had poly about 15-20 years in my 88 GT's Neither squeek in the rear, one squeeks in the front only when going over a parking lot speed bump. It's probably the control arms. Doesn't happen enough to bother me. I've never relubed.
DimeMachine FEB 18, 06:12 PM

quote
Originally posted by reinhart:

I've had poly about 15-20 years in my 88 GT's Neither squeek in the rear, one squeeks in the front only when going over a parking lot speed bump. It's probably the control arms. Doesn't happen enough to bother me. I've never relubed.



hmmmmm.. One explanation is I have noticed they tend to squeak more in temps below 60F... 60f and below is much easier to come by her in MN.....

pmbrunelle FEB 18, 08:04 PM
Maybe actually your recommendation is backwards...

Perhaps poly is good for low-torque engines, and no good for high-torque engines.

With a high-torque setup, I can imagine greater loads on the bushing which would squeeze out the lubricant more quickly than with a stock engine.

With a stock 2.8, I had no A-arm squeaks for 7 years of service. Sway bar bushings needed re-lubing once or twice though during that time.
La fiera FEB 19, 06:24 PM
That was my first upgrade when I bought my Fiero 15 years ago. With my exhaust, I can't hear them squeak!