eibach drag launch kit, any pros/cons?
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From: lebanon, ohio
eibach drag launch kit, any pros/cons? right now i've got spohn torque arm, adjustable lca's, bmr phb, v6 rear springs and shocks, upgrading to hal 12 way front struts and springs, and slp bolt in sfc's (going to weld them whenever i get the chance) would I gain anything by purchasing the eibach drag launch kit? seems everything that comes with it I already have an upgrade from stock, is anybody running this and posting good (below 1.6) 60 ft times?
Re: eibach drag launch kit, any pros/cons? I'd take a drag launch kit (for drag use, I autocross, so I'd never personally take one) over v-6 springs any day. I'm not saying the v6 springs don't work, but they "shouldn't".
When a car is launched, the weight transfers to the rear of the car. You want to get that weight on the tires to stick them to the ground. Simple enough....
The problem is, when you run a soft spring that spring absorbs alot of that weight as it compresses (the weight does load the tires, but it is much slower to do so). Think of it this way...
Go get a 10 lb weight and a floor mat (a thin rubber mat has a "high spring rate", there is not much to compress) and a basket ball.
Now, place the floormat over your shoe and drop the 10 lb weight on it (hurts, doesn't it?). You will find that you get a very fast transfer of that weight (which then transfers to the sole of your shoe for better grip).
Now, place the basket ball on your shoe and drop the weight again. The basket ball has a much softer spring rate than a thin, hard floormat. You still dropped 10 lbs on your foot, but the basketball absorbed most of the "shock" and it really didn't hurt that time.
V6 springs soften the "hit" on the tires (which is a valuable tuning aid in some cases). The stiffer springs in a drag launch kit will not flex as much as the v6 springs and will therefor transfer more of that weight to the tires and much more quickly.
In the case of the LCA relocation brackets that we have for these cars, it actually uses the control arms to lift the chassis. By lifting the chassis, you can put even more load on the tires. (get on a bathroom scale, hold the same ten lb weight, now, lift that weight up away from the floor quickly, you'll see the scale move and often more than 10 lbs). That transfers weight to the tires as well. So, though I've not run them personally, I'd say they are a step in the right direction for your application.
Just my thoughts....
Kevin
When a car is launched, the weight transfers to the rear of the car. You want to get that weight on the tires to stick them to the ground. Simple enough....
The problem is, when you run a soft spring that spring absorbs alot of that weight as it compresses (the weight does load the tires, but it is much slower to do so). Think of it this way...
Go get a 10 lb weight and a floor mat (a thin rubber mat has a "high spring rate", there is not much to compress) and a basket ball.
Now, place the floormat over your shoe and drop the 10 lb weight on it (hurts, doesn't it?). You will find that you get a very fast transfer of that weight (which then transfers to the sole of your shoe for better grip).
Now, place the basket ball on your shoe and drop the weight again. The basket ball has a much softer spring rate than a thin, hard floormat. You still dropped 10 lbs on your foot, but the basketball absorbed most of the "shock" and it really didn't hurt that time.
V6 springs soften the "hit" on the tires (which is a valuable tuning aid in some cases). The stiffer springs in a drag launch kit will not flex as much as the v6 springs and will therefor transfer more of that weight to the tires and much more quickly.
In the case of the LCA relocation brackets that we have for these cars, it actually uses the control arms to lift the chassis. By lifting the chassis, you can put even more load on the tires. (get on a bathroom scale, hold the same ten lb weight, now, lift that weight up away from the floor quickly, you'll see the scale move and often more than 10 lbs). That transfers weight to the tires as well. So, though I've not run them personally, I'd say they are a step in the right direction for your application.
Just my thoughts....
Kevin
