A brief review of LCA relocation brackets on a lowered car - LS1TECH



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A brief review of LCA relocation brackets on a lowered car

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Old 02-13-2017, 02:37 PM   #1
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Default A brief review of LCA relocation brackets on a lowered car

My car is lowered with the BMR 1.25" springs, along with the heater hose mod in the rear.

To preface this, if you've been debating doing it, stop beating around the bush and get them. They are completely worth it. I got the Founders brackets for $50, an awesome deal.

I installed them and first tried them on the top hole. Initial impressions were: as soon as I pulled out of my garage, I could feel that the back end felt tighter and more solid. I felt it even more just driving around town at a normal pace, nothing crazy. I never had wheel hop so I can't comment on that. Another thing they fixed, that always drove me insane, is that after lowering my car I'd notice hitting bumps would make the rear of the car feel like it'd shift to the side. That doesn't happen anymore. I found a pretty good business/warehouse area to test them out further on a Sunday. Basically, traction was unchanged. If there was a change, it was very small.

Then I moved them to the bottom hole: holy ****! The rear felt even more solid and firm, but definitely not like anything was binding. Something that no one ever mentions, maybe because it's kind of obvious, but you can feel the car throw you back in the seats more because you actually have traction. I used to spin all through 2nd gear, but now I can hook up about 50% of the time vs 0%. I can still get sideways just fine punching it in a corner in 2nd gear. After doing a few rolling burnouts, it's quite obvious I now have some anti-squat because it'll actually leave fairly dark tire marks, before the marks would hardly be visible. I couldn't get any rear lockup or hop when slamming on the brakes. The only thing I noticed that could get a little iffy, is when spinning the tires pulling out of a donut or a slide, near the end or top of 2nd gear, it WILL hook and throw the car forward. You have to be much more careful what direction the front tires are pointed and make sure the car isn't all squirely when it's about to hook.


All in all, an excellent mod. I highly recommend these for anyone lowered. The bite is better than stock ride height without them. THIS is how the car should drive, not so light in the rear end. It really amazes me that some people say they can hardly notice a difference. The bottom hole seems perfect for a lowered car, I wouldn't want anything lower. As far as corning goes, initial impressions tell me it hasn't affected the car in a negative way, it's also nice to have more grip to power out of a corner.
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Old 02-14-2017, 10:25 AM   #2
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I always try to put emphasis on these parts to anyone with a lowered car. When you lower the car, you completely change the rear suspension geometry, and these brackets help you correct it. There are some that for whatever reason still do not believe in their effects. My customers always report a similar night and day difference like you have experienced. No matter how the car is being used, I always recommend them. It's not a sales pitch/hype, it's geometry and physics. They work
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Old 02-15-2017, 01:12 AM   #3
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Do you notice more nose dive under hard braking? I would assume this would be a trade off.
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Old 02-15-2017, 08:04 AM   #4
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I put my relo brackets in at the same time that I did BMR springs, Koni shocks, and lower control arms so I can't comment on any individual part. But the car is night and day different in every single way. It really is amazing what a difference the stuff makes.
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Old 02-16-2017, 08:45 PM   #5
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Did you upgrade the LCA's too or just got the relocation brackets?
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Old 02-17-2017, 02:48 AM   #6
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I cant other then agree.
I have had my set up for a long time with BMR springs, BMR relocation brackets, Koni shocks and G2 LCA and it is a perfect combination.


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Old 02-19-2017, 02:11 PM   #7
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Sorry about the delay, to answer a few questions:


When I was literally standing on the brake pedal from around 40mph to try and get wheel hop under braking, I didn't notice any discernible difference in the nose diving. It seemed to be just as it was before. I think in order to get more nose dive, they'd have to move the control arms even lower than the bottom hole. Maybe installing them at stock ride height in the bottom hole would cause it as well. This is just an estimation though.

To answer the other question, I'm still using stock control arms. They are the style that have the solid bushings rather than the fluted/slotted bushings which I suppose may give them a slight bit more stiffness.
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Old 02-19-2017, 04:44 PM   #8
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Quote:
Originally Posted by BMR Sales2 View Post
I always try to put emphasis on these parts to anyone with a lowered car. When you lower the car, you completely change the rear suspension geometry, and these brackets help you correct it. There are some that for whatever reason still do not believe in their effects. My customers always report a similar night and day difference like you have experienced. No matter how the car is being used, I always recommend them. It's not a sales pitch/hype, it's geometry and physics. They work
Depends on what you want to do with the car, how its setup and how you want it to behave.
You keep over looking the fact that there is an advantage to having the LCAs being lower on the chassis side/higher on the axle side, it causes the car to have roll understeer which helps with stability in high speed cornering.
As you can see here there are some track guys who do like them and do not like them at all and prefer to not have them.
http://www.frrax.com/rrforum/index.p...&hl=relocation
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Old 02-20-2017, 11:00 AM   #9
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Depends on what you want to do with the car, how its setup and how you want it to behave.
You keep over looking the fact that there is an advantage to having the LCAs being lower on the chassis side/higher on the axle side, it causes the car to have roll understeer which helps with stability in high speed cornering.
As you can see here there are some track guys who do like them and do not like them at all and prefer to not have them.
http://www.frrax.com/rrforum/index.p...&hl=relocation
That's the big reason I kept delaying ordering these. My straight line traction is terrible enough though, I've had enough of the tires spinning everytime I hit the gas. I'm trying to set my car up to handle (yeah I know, shitty shocks), and I didn't want this to hurt it. However, after a spirited drive through the hills and throwing the car through the corners, I literally could not tell any difference in how it cornered.

Now, I understand it may be noticeable on the track when you are pushing the car to the absolute limit, but on the street, so far it's made no difference to me. I'm no expert so take this with a grain of salt, but IMO roll understeer can be controlled by other methods than just control arm location. Using sway bars thick enough to basically eliminate roll altogether is one method. Or mixing sway bars with a slightly thinner one in the rear to give an understeer handling profile is another. Another way is to use less gas in the corner as more gas will put more stress on the rear, the tires become overloaded, and you oversteer. To me, the trade off is worth it. To people race seriously against the clock on an auto-x course, maybe not.

I'm sure some serious auto-x'ers are waiting to correct me and tell me how wrong I am and how you want a little body roll and whatever for more grip, but again, I drive for fun, not for competition and I like a car that's perfectly flat and drives like a go-kart. I just don't want that thought to scare people off like it did to me, I highly recommend these after trying them out. They are an amazing bang for the buck mod and quite noticeable in a good way; I just wish I had done it a long time ago.

Last edited by lt16spd1; 02-20-2017 at 11:07 AM.
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Old 02-20-2017, 07:02 PM   #10
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Originally Posted by lt16spd1 View Post
That's the big reason I kept delaying ordering these. My straight line traction is terrible enough though, I've had enough of the tires spinning everytime I hit the gas.
I don't remember if you ever said but what kind of power are you making and what tires are you running?
Just throwing it out there but if you arn't making big power then some stock sized or a little wider sticky tires should solve the traction issues. Bigger power and its a different story.
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I'm trying to set my car up to handle (yeah I know, shitty shocks), and I didn't want this to hurt it. However, after a spirited drive through the hills and throwing the car through the corners, I literally could not tell any difference in how it cornered.
Now, I understand it may be noticeable on the track when you are pushing the car to the absolute limit, but on the street, so far it's made no difference to me.
Yes if you are not pushing the car to its limits where its going to break loose like you would on a track then you might not see or feel the difference. However what I was getting at was the fact that some people are saying that they are a "must" for lowered cars no matter what, when that couldn't be further from the truth. Some guys can get traction no problem without them, some guys don't like the way they feel or the way they make the car behave, and other like them or need them for traction, its a matter of car setup and wants/needs.
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I'm no expert so take this with a grain of salt, but IMO roll understeer can be controlled by other methods than just control arm location. Using sway bars thick enough to basically eliminate roll altogether is one method. Or mixing sway bars with a slightly thinner one in the rear to give an understeer handling profile is another.
Totally different as with the LCA's changing the angle changes the way the axle is facing when the car rolls, so its going to face toward the corner or away from the corner effecting how the car behaves.
You can compensate with changing the swaybars but you will ultimately be sacrificing cornering speed then.
Quote:
Another way is to use less gas in the corner as more gas will put more stress on the rear, the tires become overloaded, and you oversteer. To me, the trade off is worth it. To people race seriously against the clock on an auto-x course, maybe not.

I'm sure some serious auto-x'ers are waiting to correct me and tell me how wrong I am and how you want a little body roll and whatever for more grip, but again, I drive for fun, not for competition and I like a car that's perfectly flat and drives like a go-kart. I just don't want that thought to scare people off like it did to me, I highly recommend these after trying them out. They are an amazing bang for the buck mod and quite noticeable in a good way; I just wish I had done it a long time ago.
Ultimately is personal preference, nobody should be scared off especially since they are a cheap and easy mod to install. On the flip side no one should be scared to lower their car without them after the sales reps tell them they "need" them. I have them and am seeing very very little benefit in traction with them with 433rwhp and cornering feels kinda weird with them set on the lowest hole for me.
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Old 03-01-2017, 08:32 PM   #11
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I have the tubular rear adjustable lowers and the relocation kit.

Totally eliminated wheel hop when I got them.
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Old 03-02-2017, 05:57 PM   #12
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Just for the record.... LT1's don't have the brake hop issue that LS1's do, so that is a consideration.

Now having said that, the stiffer feel is from the instant center change, the downside of which is that it also makes the ride stiffer. And if you like are into cornering any angle that has the tail of the LCA down, means you get roll steer (in this case of the oversteer) variety when you are leaning on the car hard. It's just simple geometry. LCA's swing in an arc, when you compress the suspension in a turn, the outside arm gets longer first when starting tail down and the inside one effectively shortens. All that turns the axle to the outside, which isn't the ideal for great cornering. So if you do this, you want the arms to be level, not tail down.

Sure there are times and places for LCA brackets. But not on every car just because which is what the common wisdom is.
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Old 03-03-2017, 10:00 AM   #13
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Quote:
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Just for the record.... LT1's don't have the brake hop issue that LS1's do, so that is a consideration.
Just out of curiosity, can you elaborate on why that is?
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