LCA's any good?

well it says they have been used for cars with over 700 hp..so its probably street and track..how are yours with the poly bushings? im looking at getting some control arms..and although the mac ones dont seem popular..they look just the same and the price is right.
 
I plan on getting these when the time comes.

http://www.uprproducts.com/shopping/shopexd.asp?id=225

I don't want to spend $300 on Global West or $260 on MM lowers, then more later for uppers. The stiffer arm will be so much better than stock arms. The polyurethane bushings will be so much better than the factory rubber bushings. I think I'll be happy with these without spending a whole lot of money on overkill.

econo_rear_sus_LRG.gif
 
I have also been looking at the UPR Products LCA's, but I'm not sure if I wanna go with UCA's as well.

Will you get the added vibrations/noise with just the LCA's or does that mainly come with UCA's?
 
vibration would be dependant on bushing design.

I don't have any vibration issues just a bit of road noise and that is solid spherical bearings. the preformance is so much better than poly arms though.

I think the thing people don't often understand about control arms is uppers hurt your handling. poly bushings in your upper arms produce bind. If you get UPR uppers you car will not handle as well through the curves and just the right lower arm. there is a reason companies like MM, griggs, global west don't make uppers.

If you are not launching your car on slicks you don't need uppers. you will not get enough traction need that kind of control of the axle IMO.
 
hognutz said:
vibration would be dependant on bushing design.

I don't have any vibration issues just a bit of road noise and that is solid spherical bearings. the preformance is so much better than poly arms though.

I think the thing people don't often understand about control arms is uppers hurt your handling. poly bushings in your upper arms produce bind. If you get UPR uppers you car will not handle as well through the curves and just the right lower arm. there is a reason companies like MM, griggs, global west don't make uppers.

If you are not launching your car on slicks you don't need uppers. you will not get enough traction need that kind of control of the axle IMO.
Interesting... Can you explain more about the uppers and how they affect handling, ride comfort and launching?
 
steveb24 said:
http://cgi.ebay.com/ebaymotors/1979...ewItemQQcategoryZ33583QQitemZ8040357899QQrdZ1

as im doing suspension right now..im tryin to decide on which control arm to get..while spending the least i can..w/o sacrificing quality..how are these ones?? also..are upper control arms needed? if i got a good set of lca's, would uppers be necessary? thanks

You need to first decide what your goal is. If it's mainly drag racing (ie going in a straight line), poly bushings are fine.

However, if you want to corner and stuff, poly on both sides isn't the way to go. MM's site has some good reading on that topic, but you will basically get MORE bind in a corner with poly/hard bushings on both sides versus spherical/poly or even the stock rubber for that fact.

The reading is here:
http://maximummotorsports.com/rlca.asp