In Reply to: Yes and no! posted by Bob ///M3 on October 08, 2000 at 01:24:39:
They clearly marketed their bars to compete directly against Eibach bars. Eibach bars are also rebadged as AC Schnitzer over in Germany and I know that those guys actually race their cars and put a lot of effort to fine tune their products. If you measure an Eibach swaybar, you'll get exactly 26mm in the front and 24mm in the rear. If you measure UUC bars, you'll get 25.4mm in the front and 23.7 in the rear. Whether or not this is an optimal compromise, that remains to be seen, but I do know that I do not like the fact that they weren't honest in their advertisements and are still not honest after bringing this up with Ben, co-owner of UUC Motorwerks. His responses were, "Oh, we're only talking fractions of a millimeter...very insignificant," or "yes, they are SAE equivalents to get as close to 26/24, but *everyone else*--RD Sport, Racing Dynamics, etc--are using SAE equivalents as well," or "everyone who bought the bars are extremely happy with them, the racers love them, the resellers can get enough to sell....I'm not sure why your car is not handling well with them...maybe it's your car." ...yeah, just like the hood foam is thicker on the '99 M3s... BTW, the person who bought my UUC strut bar had his hood permanently dimple (oh, I don't think his car was a '99 either)...I'm glad I got rid of it.
At any rate, these were poor excuses of why their advertising does not reflect the true description of the products they sell. Let's not even get into the "zinc coating will eliminate squeaks as exhibited on powder coated bars of our competitors" hype. My car squeaked like a wooden boat after a few weeks of having the bars on the car. I told Ben that he should remove that piece of marketing genius from the webpage, but he didn't seem to get it. He said that the ad should have read, "...zinc coating eliminates squeaks.....when lubed to the hilt!" Well, duh....that would be the case with all swaybars if you lube them up enough.
As it stands, the UUC bars are in my basement awaiting testing. I'm also waiting for the shipment of Eibach bars to put on my car while the stock bars are on my car now. The UUC bars came off my car because 1) the squeaking drove my crazy and 2) my car's handling seemed off (sluggish compared even to stock) and since no one really knows what the different diameters will do, I didn't want to take a chance at Road Atlanta.
Dan Wang is right, everyone 1/10th counts. BTW, we measured the UUC bars at different points along the bar to make sure we weren't measuring a "low" spot. 25.4 and 23.7 for the front and rear, respectively.
Dan, it's true that every 1/10mm counts but in the big picture it really doesn't in this case. Let me explain.
The difference between a 26mm bar and a 25.4mm bar represents slightly less than a 10% difference in torsional strength. On the surface that sounds like a lot but when the size of a bar (at 26mm) means you are getting a 60% and 100% (going from memory) increase compared to the stock OE bars that means a 25.4mm bar would still offer a 54% and 90% increase compared to the stock bar.
Also, if the bar is not mandrel bent but jigs and other methods are used to obtain the proper bends there is a good chance the bar diameter will be altered thereby reducing the bar's size at different points along its length. This would change the bar's torsional integrity because the the bar is only as strong as its weakest diameter. Even quality bar stock has some amount of tolerance. And even though it's very easy to measure the diameter of a bar the entire length must be measured to assure the same diameter. As far as a .6mm difference between a 26mm and a 25.4mm bar; that is 1/42" or the difference between a 1" bar (25.4mm) and a 1 & 1/42" bar (26mm). Very insignificant when you look at the big picture. It still offers a huge increase in torsional strength over the stock OE bars. And we won't even discuss the size bars offered for the M3 by some of the other makers.
Sorry, i was mistaken. But I was the person who told people to watch those measurements of the UUC sway bars. They should tell people the real sizes of their products. Every 1/10mm counts.