my research says ER are great but at $315 I only want to buy if a must. my main goal here is to be quite. since it is for street car.

 

Consider leaving the stock rubber spring plate bushings on a street car.

 

Powerflex. $100 plus shipping. Just installed a set, along with the inner trailing arm bushing last week. Big job, but good results.

 

Spend the money on the ER bearings. They are worth it. You will only want do this job once. If you use the ER bearings, it will be the last time.

 

I agree with this. Even though the conventional wisdom of the Internet said that you have to replace the spring plate bushings if you remove the torsion bars, my bushings didn't arrive in time for me to get it back on the road, so I ran it with original rubber initially. It was fine. I even did some light duty track work with it on street tires. Also fine.

The ER bushings I'm using now were an improvement in stiffness, but they're noisier and harsher than rubber.

 

I definitely agree with the rubber bushes, unless he wants something new. The rubber bushes work just fine for a street car. The internet wisdom is just plain WRONG! I know, because I've done it, as probably has Oddjob. Stock works fine for regular street use.

 

Why even do a torsion bar delete on a street car where the main goal is for it to be quiet?

I would agree with rubber is best for your goal.

Polyurethane can squeak like crazy. Delrin can creak too although many by luck of the draw have been able to get away without the squeaks. If you drive in wet weather at all your chances of squeaking with either are much higher.

I run ER polybronze. Can't tell if they are noisy since everything else is so noisy anyway.

 

To clarify my comment above - I have the ER polybronze SPBs on my car, which I track quite often. However the install I referred to above was on my brother's 1989 Turbo street car, with under 60k original miles. Upon disassembly, the stock bushings were completely shot, oblong shaped and clearly incapable of holding toe and camber settings, even on the street. In fact, when I did mine about six months ago with 32k miles, one of the original SPB was torn! The Powerflex SPB come in their medium (purple color) durometer and do not squeak. I personally think these are a great option for the street. Mike

 

Stock rubber or ER polybronze. Have run both with torsion delete.

 

so looks like I am to use the stock rubber bushing. do they sell these new still? or are you saying to to leave the one thats in there now

 

Probably not worth checking on the price for factory new, as it would require purchasing the entire spring plate assemblies ($$$), and may no longer even be available.

If the factory rubber is shot/worn out, you will want to go with an aftermarket bushing, or try to find a known good used pair of spring plate assemblies. If the original bushings still look good, go ahead and re-use them.

 

The real most prevalent concern will be whether they are too far out of round. Either way, if you go with something new and aftermarket, you are likely going to have to burn/scrape the current bushings off! Enjoy!

 

Do you just discard the torsion bars at this point?

 

I left my TB's in with my Escort Cup setup just for this reason on a street car. My rubbers were in what looked like mint condition for their age, but only 56K. Corner balancing and alignment went well. I did reclock the TB's though. I did not want the harness or the noise of the poly bronze. Everyone loves them on the track though.

 

You can, or you can save them so that they stay with the car, for later use, or if you sell. OR you can sell them to someone who wants them.