yogi

There might be some confusion here. From what I can find by doing a search on google Weltmeister Neatrix bushings are rubber and are only for the rear. They do not make a model for the front. On the other hand Weltmeister makes poly graphite bushings for both the front and the rear and they are some kind of plastic and squeak.

I have not done the bushings yet on my car. My plans are to do the rear in neatrix and a person who posts under the name aturboman is about to come out with front rubber replacement bushings for the 911. He posted this at Pelican and they will be sold through Pelican. Also I see that Neatrix has now come out with a bushing for the trailing arm as well as the one they always made for the rear spring plate.

Jerry Baer
87 coupe

Rick K

Yup, meant 22/28. Was just talking to a local guy who wished he had gone 21/28 for his track duties, so I had that on the brain and typed that mistakenly.

Ok, so talked w/ a bunch of race/wrench shops and here's where I'm leaning. Since my car is 90% street, going to go Polybronze springplate bushings, and OEM rubber rear trailing arm bushings.

Ed Hughes

Getting the trailing arms off with the engine in place is a FUN job. I think I ended up with a 5' lever arm to get the bolts loose!

MDL

Why not polybronze all around?

Mysterytrain

Rubber....
http://www.rennsportsystems.com/1-sg.html
http://www.automotion.com/productpag...306&pid=104282
I replaced ALL the factory rubber suspension bushings on my 78 with OEM factory rubber. Added 21/27 t-bars. Stock sways. For the front A-arms I went with new. For the rear spring plates I went with rubber Neatrix. The car feels great. Like it did in 78..I don't know?? Better then Poly bronze..I don't have a clue. Regrets? Not a one.

Rick K

Well, ride quality mostly. From those that I've talked to, PB bushings on the trailing arms and front strut mounts (as I've been told) tend to ride more harshly then the neatrix/rubber stuff. If I'm not on the track as much as most folks, not sure that I want a fully track-prepped car on the street.

r911

I've heard the opposite - that PB is just as "comfy" as the new, stock rubber. Sounded odd to me (but see one of my posts above).

Suppose we discount Chuck's comments as an interested party -- that still leaves comments from others, who have seen large numbers of cars come thru their shops. I'd name them, but did not get permission to do so.

I always try to find out if someone is just a car owner, and if they tested new vs. new or how their opinion was derived. If you own or manage a race shop, etc. then you have a better view of things.

Rubber is no maintenance -- at least for 15 years or so.

Ed Hughes

I'll say it again, my ride quality improved vastly when I put PB in my car. Again, there seems to be a misnomer (IMO) that these bits are only for track cars. Not so!

Edward

Sidenote and opinion alert:
Apart from the discussion of bushings, if you haven't gotten the t-bars yet, I'd personally go with a 22/29 set up. I had the 22/28 and, while no "real" complaints there, I prefer the slightly stiffer rear bias of the 29 (I actually am now using a 30 rear, but that's a different story as it's a 98% track car).

The slightly stiffer rear is more neutral IMHO; the 28 rear still harbors some understeer. And if the car is 100% street, one can argue that the 21/28 really is the better choice as it will yield less understeer (and arguably better balance) than the 22/28 combo. All IMHO, mind you, but just thought I'd offer that point
BTW, what does your car weigh?

Edward

Rick K

Not sure, Edward. Its a stock Euro 84 except for the 7's and 9's, no cat, M&K exhaust, AC compressor removed.

g-50cab

I agree with Ed - my ride quality improved with PB bushings - Don't go too hard on the shocks or too high on the torsion bars and you'll be good to go.

Edward

So my guess is around 2650-2700. The point of my question was that if you had an ultra-lightened car, the "lighter" t-bars would definitely suffice. With a heavier car (say a fully-optioned 86 at near 2700+) the "lighter" t-bars would be stiffer than stock, but not give you that "go-cart" ride of a 2400lb car with the same setup.

Edward

MDL

I browsed the Elephant Racing site and they agree with the method that Rick has chosen for his application. It does seem strange to mix the two different materials.

http://www.elephantracing.com/suspen...iondiagram.htm