LCA relocation brackets for racing
LCA relocation brackets for racing As a lot of you guys know, I do the spectator drags at seekonk speedway. I've been thinking of ways to get faster. One of my weaker points is my launching. I'm usually always beaten off the line by the top 8-10 drivers there. Last year I improved a hell of a lot which is good, but if one day someone puts in a high powered car then it's not going to be as easy.
I'm lowered on Strano springs so my lower control arms are angled down from the axle to the chassis. I'm wondering how significant of an effect that changing this angle will have launching on the crappy speedway surface with my 315 Nitto drag radials. Even if I pick up a half a car that would be a huge improvement. I'm sure a lot of you guys have tried the before and after effects of relo brackets right?
Nittos are probably the best tire for this. There's a 100 treadwear limit rule so other tires like BFGs and Mickey Thompsons are out.
I'm lowered on Strano springs so my lower control arms are angled down from the axle to the chassis. I'm wondering how significant of an effect that changing this angle will have launching on the crappy speedway surface with my 315 Nitto drag radials. Even if I pick up a half a car that would be a huge improvement. I'm sure a lot of you guys have tried the before and after effects of relo brackets right?
Nittos are probably the best tire for this. There's a 100 treadwear limit rule so other tires like BFGs and Mickey Thompsons are out.
For people who don't know what the spectator drags are, here's a clip: http://www.youtube.com/watch?v=CXk6sQ8vntE
I recently had them installed on the car.
My car did once pull a 1.40 60' with my current setup, but shortly before installing the relocation brackets, I noticed that unless the track is in perfect condition I would not be able to hook at all.
Initially after the install, I had the LCA's set on the top hole in the bracket. At the rental day where my car went 10.32, I was able to pull consist and low 1.42/1.43 60' when lower HP automatic cars were unable to hook. Hell, even Marc, "LS1LT1" was going sideways in a stock LS2 Vette. Clearly the relocation brackets WORKED!
After my 10.32 pass, I moved the LCA's to the lower hole, and went back out to run a 10.29. I was launching at 6500rpm and bogging! Those brackets work like woah! Unfortunatly, before my next pass that day it began to rain, I was never able to test them any further.
But my conclusion is; they work!
My car did once pull a 1.40 60' with my current setup, but shortly before installing the relocation brackets, I noticed that unless the track is in perfect condition I would not be able to hook at all.
Initially after the install, I had the LCA's set on the top hole in the bracket. At the rental day where my car went 10.32, I was able to pull consist and low 1.42/1.43 60' when lower HP automatic cars were unable to hook. Hell, even Marc, "LS1LT1" was going sideways in a stock LS2 Vette. Clearly the relocation brackets WORKED!
After my 10.32 pass, I moved the LCA's to the lower hole, and went back out to run a 10.29. I was launching at 6500rpm and bogging! Those brackets work like woah! Unfortunatly, before my next pass that day it began to rain, I was never able to test them any further.
But my conclusion is; they work!
That's the key here is crappy track conditions. Picture the worst track conditions at a drag strip and make it even worse than that. That's what I'm launching on. And also the part we are launching on is banked sideways.
For people who don't know what the spectator drags are, here's a clip: http://www.youtube.com/watch?v=CXk6sQ8vntE
I don't know how much LCA relocation brackets will help you there, but they can't hurt.
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I launch between 2800-3500 depending on how warm my tires are and how the track condition is. I usually do a feeler before each run. If I spin, I'll launch lower. If I bog I'll launch a little higher.
From all my years of circle track racing, I can tell you that the lower control arms going downhill toward the chassis is not a good thing. You want them to be at least level or to have some amount of angle going up toward the chassis. Using the relocation brackets should help this because it will be "forcing" the rear tires to push up against the chassis, planting the rear tires... in lamens terms.
From all my years of circle track racing, I can tell you that the lower control arms going downhill toward the chassis is not a good thing. You want them to be at least level or to have some amount of angle going up toward the chassis. Using the relocation brackets should help this because it will be "forcing" the rear tires to push up against the chassis, planting the rear tires... in lamens terms.
The only con I can see from this is that the lower the arms are at the axle point, the suspension geometry can cause the rear axle to point away from the way you are turning if you are in a full lean, causing the rear to be more prone to oversteer. How much of an angle does this cause? I don't know. It may not be significant enough to notice. Maybe it will. Can't tell unless I try. I'll probably pick up a UMI or BMR bolt in set and experiment on my own.
Haha...circle track, that is.
I don't know how much angle you'll be able to get out of them, but there are two holes in the brackets to mess around with. I think you'll see a little bit of roll steer, but I don't think its enough to be noticable, especially if your car doesn't have much body roll.
You should bring that thing up to Maine and run it at the spectator drags at Beech Ridge Speedway this summer. It's just a little bigger than the "cement Palace". They do it three times a year, the first one being Memorial Day weekend. I think it pays $500 to win.
I don't know how much angle you'll be able to get out of them, but there are two holes in the brackets to mess around with. I think you'll see a little bit of roll steer, but I don't think its enough to be noticable, especially if your car doesn't have much body roll.
You should bring that thing up to Maine and run it at the spectator drags at Beech Ridge Speedway this summer. It's just a little bigger than the "cement Palace". They do it three times a year, the first one being Memorial Day weekend. I think it pays $500 to win.
500?? 
I'm racing at the wrong place. You only get 100 at seekonk. How is that place as far as safety is concerned? I know like the Hudson Speedway spectator drags I don't want to go to because they always try to hit each other. Seekonk is pretty clean. Wasn't any contact last year pretty much.
I'm racing at the wrong place. You only get 100 at seekonk. How is that place as far as safety is concerned? I know like the Hudson Speedway spectator drags I don't want to go to because they always try to hit each other. Seekonk is pretty clean. Wasn't any contact last year pretty much. Once in a while you'll see contact, but it's usually a result of good hard racing. Sometimes deliberate, but I don't think there's any way around that. The place is very safe, nothing like Hudson. They always have police, fire, & ambulances on site in case something bad happens.
