I just got some relocation brackets for my car that I will be installing shortly. There are 2 positions for the LCA to bolt to. My car is stock ride height, should I just use the top hole, or would the lowest hole give me even better traction on lauches? How would using the lowest hole effect my driving around town and cornering, that stuff? Thanks.

 

here is my personal experience with the BMR relocation brackets on my stock rear end:
i installed these with a set of bmr poly lca's. i put them on the lowest hole.
it made the car handle very loose in the rear. (but that may because i dont have a front sway bar)
went to the track and cut consistent low 1.7 sixty foots...

the next week i sold the relocation brackets and put my stock lca's (with the rubber bushings that have 88K miles on them) back on the car.

i went to the track with stock lca's and no relocation brackets, my sixty foots did not change at all, i even cut a personal best sixty foot of 1.69 on the stockers.

now i have the rod ended adjustable chromoly bmr lca's with NO relocation brackets. and i still cut low 1.7 sixty foots...

for my car they made no difference whatsoever in traction at the track.

 

Hmmm, interesting results, what were the temps, weather etc like during these runs? Pretty consistent?

 

before you do anything, you need to know how your suspension works, and what the relocation brackets DO.

im still amazed at the number of people that go "oh, you need this, or that for X time...."


what you need to do is look at the car, when its sitting at ride height, and decide if you even need relocation brackets.
most 3rdgens do because their springs are sagging..
some LT1 cars do because they're also lower..
most LS1 cars dont because they're new enough to still be at factory height.

in anycase, relocation brackets can have no effect if you already have a good LCA angle... as a matter of fact, you can go too far.. causing the car to shock load the tires on launch, and then a little bit out of the hole, they break loose again...


in anycase, watch this and you should have a better understanding... http://home.comcast.net/~MrDude_1/LCAangle.gif

then go set it on the highest hole that sets the rear of the LCA down.. then after a few baseline runs down the strip, try the other holes.... see what the car likes.

 

hey QCKZ28, really good 60s
do you have a torque arm? what kind? Tires?

 

Mr_Dude that is a very nice GIF you made. I understand the physics of the brackets and control arms, but I'm sure that will help out MANY people who are confused on this topic. When my car was just sitting flat, the control arm angle was about parallel to the ground. I ended up just using the first notch, which lowered it 2" and I can feel that my traction improved. Still have to go to the track and see what it does to my time!

 

I just got mine . When I get mine in I'll post my results. If it ever stops raining.

 

this is JMO, but saying "relocation brackets improve traction" is a bit too general to be entirely accurate. Traction is misunderstood I believe. How you launch has more to do with how the car "hooks up" than anything IMO. Just as most of us know how to smoke the tires when we want to, most of us also know how to launch with maximum traction, i.e. tires just at the edge of spinning. It's my impression from my own relocation brackets that they help reduce wheel hop when the tires do break loose. I think this is what MrDudes GIF & test illustrates best...the undesireable wheel hop event...and how relocation brackets reduce the occurence of wheel hop

 

stock torque arm, et streets
the weather was consistent, my et and mph were almost identical.

jesse

 

What about an auto? It's a little different launching with no clutch......you don't have as much control or the launch.....you just hit it and make sure your suspension can hook it. You can't control how fast the tranny engages.

 

So if you had an auto where everytime you put it to the floor you got the exact same results you would be able to tell if you were getting better traction that is what "Poik" is talking about probably.

 

the reason for the relocation brackets is to restore the suspoension geometry sfter lowering the car.when lowering the car,it changes the angle that the lca is in relatio nto the ground.for optimum results,the lca has to be either parallel to the ground or have the rear of the lca slightly lower than the front.