Street or Race LCA
01-21-2008, 01:40 AM
#1
Street or Race LCA I'm looking at the BMR adjustable chromoly LCAs, and there are two versions.
Street and Race. Whats the real day-to-day difference? The listings eluded to the Street ones being about to be adjusted on the car.....but the race ones said nothing, so can you not adjust the race ones on the car?
Street and Race. Whats the real day-to-day difference? The listings eluded to the Street ones being about to be adjusted on the car.....but the race ones said nothing, so can you not adjust the race ones on the car?
01-21-2008, 09:49 AM
#3
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I just did a google on the street and race versions.
Street are adjustable in the middle of the arm and have poly bushings at both ends.
Race are double rod ended and adjustable at both rod ends.
I wouldn't buy either. From searching around, I'm leaning toward getting a set that had poly at one end and rod at the other. Poly is stiff and doesn't allow a lot of movement, but they will absorb sound and vibrations better. Rod ends allow the end to pivot, though they will transmit their sound and vibration more. For my racing application, I can't afford to have my rear axle bound up around turns yet I want as much daily driveability as I can get. So I'm planning on getting some UMI poly/rod end arms this year. I know a lot of people just get 1LE moog bushings and put them in their stock arms, but I want to try to UMI and see what happens to my car.
Street are adjustable in the middle of the arm and have poly bushings at both ends.
Race are double rod ended and adjustable at both rod ends.
I wouldn't buy either. From searching around, I'm leaning toward getting a set that had poly at one end and rod at the other. Poly is stiff and doesn't allow a lot of movement, but they will absorb sound and vibrations better. Rod ends allow the end to pivot, though they will transmit their sound and vibration more. For my racing application, I can't afford to have my rear axle bound up around turns yet I want as much daily driveability as I can get. So I'm planning on getting some UMI poly/rod end arms this year. I know a lot of people just get 1LE moog bushings and put them in their stock arms, but I want to try to UMI and see what happens to my car.
01-21-2008, 01:41 PM
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I have a poly/rod end adj. lca's from UMI. They will transmit more noise at low speeds like coming out the driveway and on uneven surfaces but driving down the road you can barely even notice the extra noise.
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01-23-2008, 05:26 PM
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poly and rod work great. i dont notice any noise but that might be me. the umi ones arent adjustable on car but it is very easy to adjust. just take the rear bolt out and give it a turn. got them on my thirdgen wont go back.
01-23-2008, 07:11 PM
#10
Depends what your goals are for the car. My car is a daily driver and sees some track and will most likely end up being a weekend warrior. After talking to the suspension companies it was recommended to go w/ poly/poly since its very unlikely I'll see any rear end bind considering the fact I don't autox or roadrace
