ebay delrin bushings -> is this everything I need?
 

Hi guys!

I've found some delrin bushings on ebay and wanted to know if these are all bushings that I need to replace every rubber on my suspension

http://www.ebay.com/itm/Rx-7-Rx7-FD-...-/110761294618

I've also bought some TCsportline toe links, trailing arms, banzai racing diff+transmission brace and some poly engine mounts...
A Tein MonoFlex is also on it's way

is this everything i need to stiffen up my suspension?

Thanks in advance
Patrick

Re the bushings, the different colored zip ties make me think those are LubeGroove bushings, but it is impossible to tell from that picture.

If this is a street car, you may prefer getting some polyurethane bushings - the Delrin bushings require some periodic maintenance. When installed you need to put in zerk fittings and grease the bushings periodically.

Do a search for more info, there is plenty of it.

and pillow ball bushings

Those look like the ones in the group buy....

Add in a set of stock bushings to replace those when you get tired of them. :)

The FD's bushings do not need to be any stiffer than they are - with the exception of the rear trailing arm and toe links. Stiffer doesn't buy you more performance with this chassis. Read and research threads on here to educate yourself on why.

@jk still

thank you

car will mainly be used for track days and very spirited street driviny (terrorize the austrian alps :))
I know about that group buy, I also can remember the need for grease...
That little extra work would be no problem, car is never driven as a daily, just for fun only

@cabrera

what do you mean? That i need new pillowballs?
They are on the list, but this little **ckers are so damn expensive :(
My current pillowballs seem to be good

@gracer7

I don't think I will getting tired of them... I don't need any comfort in this car, it should be a pure driving machine...
My last daily-driver (daily, not track toy) was a BMW E36 M3 3.2l with selfmade aluminum bushings, bucket seats, harness, rollcage, pillowballs, KW Var.3... And it was comfortbale enough to do 30.000km/year on our very bad austrian roads and driving 2000km+ to the nordschleife:)
Or do you have other reasons?

But I will definitly read up on that, in my world it always was/is -> compliance = bad

More input is very welcome :)

thanks in advance

No, I suppose I don't have anything else to add. If you enjoyed the BMW with aluminum bushings on public roads, you may enjoy delrin bushings on the FD. Won't know till you try. The delrin will transfer more NVH and they don't have as much articulation as the stock bushings in areas where they are of a pillowball design vs a sleeved design like the delrin and poly bushes. They might eventually get noisy if you don't re-lubricate.

Some compliance isn't always bad. You need some give to allow the parts to respond to irregular roads and also so that nuts/bolts don't get loosened by a vibrating chassis. What is useful for a race car is not the same as what is useful in a street driven car.

@gracer7

totally agree with you, I've had to loctite EVERYTHING on my BMW...

I've read all threads I've found with searching about "delrin" in the thread topic... But I did not found some installpics of the zerk fittings (only one post, and every picture was down)
Do you have an idea where i can see some installed pictures?

I've also read about the "lubricating style" delrin bushings... can you tell me something about them? it seems that they have a lube groove in them... can you give any pictures/info on this?

Thanks for your help and input, i really appreciate!!

To check your pillow balls, remove the dust covers from both sides and check for play. The covers offer some resistance to the pillow balls making them feel tighter than they really are. I've got good prices on both OEM Mazda and AtomicRex pillow balls if you ever need some. I dont know what shipping costs to Austria though :scratch:

Hi Juan!

Thanks for the info, I will definitly keep that in mind! Did you've got a website or an mail adress for me to save?

Shipping costs for small parts are not too high, I'm also ordering bigger parts (radiators, exhausts etc.) from the US, the shipping fees are OK.

When I'm ordering stuff from different companys I'm using the service of bonvu.com. They collect the shippments for me, repackaging the items into one big box, writing the custom bills and forward it to mee -> works flawless

https://www.rx7club.com/showpost.php...85&postcount=3

This post mentions the zerk part# I used.

The post following it has a pic of all the suspension bits.

Save the pic, and zoom in to see some of the zerk fittings.

You can always find me here on the forum or you can save my e-mail address: juan@j-automotive.com and/or save my website www.j-automotive.com (still working on it though). Shipping will be cheap since you're using bonvu. Let me know if you need any parts or if you need any help or pointers when you do your suspension :icon_tup: