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Author Topic:   Need Help With Leaf Set up!
GET-n-IT 12
Dirt Roller

Total posts: 9
posted September 03, 2002 10:20 PM
I have a older REC car, and it currently has 155# multi leaf springs on the rear. I am only getting about 1 inch shock travel on this setup. Could someone help me on conveting this car to a different setup that will give me more adjustment and control.

Dustejr73
Dirt Full Roller

Total posts: 29
posted September 03, 2002 11:24 PM
i think that the easiest would be to get rid of the multis and add some mono leafs, afco 20242lw with about a 175RR coil spring and a 200LR coil spring. this should get you pretty much in the ballpark.

HEAVY DUTY
Dirt Roller

Total posts: 16
posted September 03, 2002 11:48 PM
i would put some actual 120 lb leafs on the car,howe31 or afco 20231m or landrum175 springs.155 lb springs are too stiff for a mod.some guys can get by with softer springs but they wont last on most cars.about changing to another setup,multileafs are as good or better than mono leafs if they are right.they are not going to last more than 8 or 10 nights when hooked up.a mono leaf car is more adjustable but adjustability is only good if you know what you are adjusting.mono leafs also need changed quite often.the lighter they are the more often they need changed.the real light(.230 thick)monos are only expected to last less than 100 laps on a non weight rule (very light) car.leafs are a good setup when right but are a lot of work and are costly to keep right.dont forget that there are coil spring guys that arent hooked up either,so changing your rear suspension might not be the answer,if the problem lies somewhere else.the rear suspension is the first thing to get the blame when the car isnt hooked up,ans often times it is something small like the throttle stroke too short or the carb or cam not smooth,or a front brake dragging causing a loose car.any setup will win when it is right and suits the drivers style.most race cars need about 3 to 4 inches of shock travel in the rear to work.check your slider boxes and make sure the bolts arent too tight and binding the spring up.if you have shackles,take them apart and clean and lube them,as well as between your leafs,they have to slide against each other.

brownstone
Dirt Maniac

Total posts: 107
posted September 04, 2002 10:24 AM
I would reccomend you give Buzzard Chassis in Indiana a call they build and race nothing but leaf cars and can get you going. When I had a leaf car they were always helpfull and are still very succesfull running leaf cars all over the country.
Good Luck

28
Dirt Full Roller

Total posts: 36
posted September 04, 2002 12:32 PM
Instead of replacing your suspension, do like HeavyDuty suggested, adjust somewhere else. There are many leaf cars doing well so I suggest sticking with it and find what works. Here are a couple suggestions.

I assume you are not running a panard or J-bar...right? If you are, get rid of it. You need to adjust your roll center to get the car to roll over more to get that travel you are looking for.

The easiest way is to add ballast up high.
Better yet, raise your fuel cell.
Raise your ride heights an inch or more all the way around.
Soften your RF spring.
Get that car to roll and the leaf will stick that tire into the ground and make plenty of traction.

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