FSAEracer03

I'm not sure where you heard that from, because that's a pretty inaccurate point.


Bonestock, staying away from poly bushings is in your best interest. They often bind and turn to crap. Rubber for cushy street ride; delrin for performance track responsiveness; poly for wasting money.


Yes, indeed. Whenever I fabricated delrin bushings at previous shops, I also sprayed them with white lithium or WD-40 in order to set them up. None has come back to date, as far as I know, with a problem.

Darwantae951

Wow...thanks, I was going to purchase some.

-Darwin

xsboost90

i heard that from some guys that race PCA club racing that had two sets of delrin bushings wear out before switching to elephant bearings.

dnwong

I was told that the poly was a better compromise because it was softer then delrin for street use and the poly would resist the oil also.

FSAEracer03

Poly resists oil, yes. I've personally seen delrin bushings outlast poly many times over, and never pose a problem binding or wearing. Poly bushings are a softer polymer, and have a tendency to fail under some angled torsion (binding moment). Rubber just takes the deflection. Delrin just takes the load.

XS, those elephant bushings are wild! Very, very nice. I'd definitely chose them if I had an unlimited budget... but in regards to their delrin bushings wearing out... I would then assume their machinist wasn't very good at turning.

Robby

Poly-U has a reputation for squeaking, unfortunately.... Also, the Elephant's would be a bit solid for street & I've read some mixed reviews here- at least one person did not like them. I can't honestly say it was the sways though...