How much horsepower do LCA brackets add?

[stkjock]

I'd agree they don't need to be welded. It's best practice to weld them IMO.

 

[fdjizm]

If they are staying on forever I have no problem welding them in.

 

[Norm Peterson]

They don't really add any power, at least not any engine or driveshaft power. What they do is let you put it down suddenly, better. I suppose you could say it adds effective power at the contact patches.

There's more than just the LCA inclination involved. The UCA inclination also matters.

If you're getting delayed wheelspin, I'm thinking that you're running a little too much anti-squat and getting a little separation. Once the rear starts dropping, some load comes off the rear tires allowing them to spin. IOW, too low of a relo bracket setting for consitions. Or possibly not enough low-piston-speed bump damping in the rear shocks.


Norm

 

[cm581978]

Like magnets bro

 

[fdjizm]

They don't really add any power, at least not any engine or driveshaft power. What they do is let you put it down suddenly, better. I suppose you could say it adds effective power at the contact patches.

There's more than just the LCA inclination involved. The UCA inclination also matters.

If you're getting delayed wheelspin, I'm thinking that you're running a little too much anti-squat and getting a little separation. Once the rear starts dropping, some load comes off the rear tires allowing them to spin. IOW, too low of a relo bracket setting for consitions. Or possibly not enough low-piston-speed bump damping in the rear shocks.


Norm

Yea I know they don't add any HP, was joking since it felt so much more direct when I hit the gas.

I moved to the top hole, going to see how it feels for a few days.
I believe I may have a bit too much anti-squat with the middle hole at stock ride height.

thanks for the tips man!
I'll be getting an adjustable LCA soon to go with my spherical diff bearing coming.
Looks like my diff may be point up a bit instead of level? probably adding to the vibe issue I have.

 

[Paps]

Tell us how the top hole performs, if better, i'll switch too

 

[AbdullaGT500]

See how the other hole feels, nothing wrong with experimenting. It might feel even better.






Take that however you want it.

 

[07TGGT]

See how the other hole feels, nothing wrong with experimenting. It might feel even better.






Take that however you want it.

You're an experimental type of man aren't you lol


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[NitroPsycho]

^^^^ LMAO! Looking to see what kinda 60 ft times you see after the change.

 

[fdjizm]

Yea will be a while till I can hit the track but I am going to launch at the same RPM to see the difference. I put it in the top hole late last night (it was a tight fit but I lubed it up shoved it in there).

I think I am going to keep the top hole for now, still tons of grip, not much squat and a nice direct feeling, didn't make too much of a difference though maybe a bit more stable on a hard turn. but I will experiment at the track may just bring the tools with me. Took about 15 min to swap holes.

I found a pic of the cobra jets control arms, that's crazy angle.
I was surprised to see those shitty brackets though, and non welded too!? Maybe they connect to the axle somewhere.

 

[VTXFrank]

I have the same LCA's and I bought them used from a member on here some time ago. As long as you have at least a slight angle with the higher side being attached to the car and the lower side to the axle, you'll be good to go. The more extreme the angle, supposedly the better traction. For my needs and power level though, I use CHE brackets, the middle hole and non-welded have been working just fine the last 18 months I've had them.

One awesome thing I noticed was how much better I could get out of a corner under power. I know they're mainly meant for straight line launches, but they do seem to help when powering through corners.

 

[GallopingFord]

Yea will be a while till I can hit the track but I am going to launch at the same RPM to see the difference. I put it in the top hole late last night (it was a tight fit but I lubed it up shoved it in there).

I think I am going to keep the top hole for now, still tons of grip, not much squat and a nice direct feeling, didn't make too much of a difference though maybe a bit more stable on a hard turn. but I will experiment at the track may just bring the tools with me. Took about 15 min to swap holes.

so much innuendo.

 

[AbdullaGT500]

You're an experimental type of man aren't you lol


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Only upon request. I'm not a fan myself.

 

[fdjizm]

Only upon request. I'm not a fan myself.

Little rusty trombone action, all good bro.
Our little secret.

 

[stkjock]

well, Capt Obvious for a moment, that CJ set up is strickly drag so they set up the LCA angle the most aggressively for launch and traction.

 

[fdjizm]

So I guess there is no such thing as "too much" angle.
Figured if the rear lifts when you launch you're getting no weight transfer.

 

[AbdullaGT500]

Little rusty trombone action, all good bro.
Our little secret.

well, Capt Obvious for a moment, that CJ set up is strickly drag so they set up the LCA angle the most aggressively for launch and traction.

Another Capt. Obvious observation, that CJ suspension isn't loaded. The axle is hanging.

 

[stkjock]

So I guess there is no such thing as "too much" angle.
Figured if the rear lifts when you launch you're getting no weight transfer.

well at some point it would be too much. however the greater the angle the more the body weight pushes down on the rear end and forces it into the pavement to aid traction.

 

[Norm Peterson]

I'm pretty sure that you can have too much angle for the rest of your combination. If nothing else, your IC would be moving too far rearward.

Rear squat does not cause "weight transfer". All squat is, is visible evidence that rearward load transfer is happening on a car with less than 100% anti-squat.


Norm

 

[Turbostangs90]

The angle is tricky, I usually prefer a slight upward angle going towards the body. If you have too much angle then you are wasting movement of the car that can slow your launch times. All cars are different whether running radials, slicks, HP, auto, stick...so best way to find out is to make 1 adjustment and then make a few exact launches. Always record your data and then compare. It is amazing the difference will make in a properly tuned suspension.