i want to replace my front end bushings and i woulk like to know who makes the best ones, i'm going to start racing my 67 and the motor is going to have 600h.p.any help with my question would be appreciated, thank's

 

get some tubular control arms andpoly bushings

 

PST makes some mean poly graphite bushings. (I had them in my 84) and you could also box in your control arms to make them stronger.

 

Here's my .02 since I raced a 68 for nearly 12 years. It was a well working 10.40 car in the 1/4 mile so I can tell you what I found out through experience.

If you are going to be racing a lot and are going to do limited to no street driving,the last bushing you want to put in your car are the Poly ones. Poly bushings bind by nature. The sleeve that they give you to put in the bushings is so tight that the A-arm can't really do what it's supposed to unless you spend some time re-working them. I know because I went through that. The Poly's were designed for lack of deflection because they are so stiff. In turn,with the tight interference fit, they of course bind.

If the car is primarily going to be raced ( I guess I'm assuming Drag Racing) the better choice is factory rubber bushings. Poly's are designed to hold under hard cornering (anti-deflection) and since there is no cornering involved in drag racing, they are not needed. Ask any Stock/SuperStock racer. The factory rubber bushing has an inner and outer sleeve that lets the A-arm rotate much more easily and they don't bind when pressed into the -arm. I know it sounds conter productive, but it works and since the car won't be a daily driver, it'll be 25 years before they need to be replaced again.

Now if you really want to go the high-tech route, which I ened up doing after years of trial and error..... Global West makes the Del-Alum bushing that are aluminum sleeves with a Delrin (plastic aerospace something or other material) bushing in the middle. They WILL take time off of your time slip. They are nearly indestructable, are greasable, have no deflection, and limit the bumpsteer on hard launching cars. They are more expensive, but a couple hundred dollars is nothing in the cost of any buildup.

http://www.globalwest.net/Del-a-lum%...bal%20West.htm
http://www.globalwest.net/1967-69%20...ngs-Shafts.htm

That's the only way to go in my opinion. I've been there and done that. Besides,Poly's squeak a lot.

RM

 

Ratmotor has a good point. When some one says racing I want to think road course. (I almost hate drag racing almost as much as I hate nascar) The poly bushings in my Hotchkis rear control arms dont squeak or limit the rear from moving. The PST I had in the front with the heavy srpings would not allow you to physicaly push the front end more than about 2". They did not squeak either. The car, along with the great Kuhmos', would hug the road great. I could take an on or off ramp really fast. But anytime I hit a pot hole in the road it would throw the car into another lane if you did not expect it.

Read thier explaination on why the poly graphite is better than the ureathane

http://www.p-s-t.com/polybu2.html