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Author Topic:   Floated RR on leafs w/o pull bar
5tbone
Dirt Full Roller

Total posts: 58
posted July 02, 2005 07:43 AM  
My ? is Can a guy who has to run stacks but can't run a torque arm or lift arm pull bar etc. run a leaf floater on the RR and not tear up the LR spring?

midmod34
Dirt Maniac

Total posts: 119
posted July 02, 2005 11:23 PM  
yes due a google search on the scooter set up it is also listed on the 4m board

mdsteacher
Dirt Maniac

Total posts: 145
posted July 03, 2005 04:45 PM  
You will need to run a mono leaf on the RR along with a coil spring in order to float the RR. Stack on the LR.

5tbone
Dirt Full Roller

Total posts: 58
posted July 03, 2005 05:50 PM  
rules require stacks for both sides. so why can't I use stack on the RR? thanks

dirt_wrench
Dirt Roller

Total posts: 24
posted July 03, 2005 05:58 PM  
I would think you could still float the RR even with a stack leaf. Should not really matter if it is not a mono.

mdsteacher
Dirt Maniac

Total posts: 145
posted July 03, 2005 07:39 PM  
I don't know if I can answer why you couldn't use a stack on the RR, but I know that when floated, there is a heck of a lot of twist in the rear-end and the leaf needs to bend quite a bit when floated to create bite. The coil spring is needed on the RR to help keep the rear-end in the car under heavy side bite in the turns. I would think a stack leaf won't bend as easy under load. I'm not 100% sure of the mechanics of it all, but I know when hooked it is fast.

5tbone
Dirt Full Roller

Total posts: 58
posted July 04, 2005 10:04 AM  
I have heard it is fast. That is why I wanted to try it. Our E-mod rules are very limiting. All the cars are very close and I was looking for that extra something if you know what I mean. If I used lighter springs say 105# RR 175# LR maybe it will bend easier any thoughts.

dirt_wrench
Dirt Roller

Total posts: 24
posted July 04, 2005 10:34 AM  
I would think if you ran a lighter spring it would wrap easier. I think it would be somthink worth trying.I belive it would work and really help with bite.

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AINT SKEERED

irace74
Dirt Forum Racer

Total posts: 80
posted July 04, 2005 10:35 AM  
All of the torsional force (wrap up) will have to be accomodated in the left rear spring. This may mean an additional 1/2 leaf in the front stack, depending on track bite and ponies under the hood.
I think that you can float the right rear with a stack but, dramatically cutting the spring rate may not be the answer. When the stacked mono thing is employed, the mono is a 50-60 #unit with a 100 - 125 helper spring. Because the spring will not wrap up, I think that keeping the stacks, generally as they are, will be a good starting place. Without the wrap-up in the right rear I would not be suprised at all if you would not have to run a slightly stiffer stack on the right rear to keep sidebite and the car moving forward.

devil wrench
Dirt Maniac

Total posts: 178
posted July 04, 2005 01:41 PM  
if you float the RR, the RR spring doesn't wrap AT ALL, that's the whole point of doing it... total spring rate is all that will matter. The mono/coil setup is simply lighter and easier to adjust.

JT54
Dirt Maniac

Total posts: 170
posted July 04, 2005 01:52 PM  
Check out the fast boys set up on 4m.net you will learn all you need to know about this set up.

mdsteacher
Dirt Maniac

Total posts: 145
posted July 04, 2005 04:08 PM  
The problem with the fastboys is that you must run mono leaf on the RR and run special shackles and special spring perch, etc. He can only run stacks.

5tbone
Dirt Full Roller

Total posts: 58
posted July 04, 2005 10:00 PM  
teacher is correct i have to run stacks on both sides but i checked out the "fastboys setup" some things make sense. but the Info from you guys is pretty good too.
Thanks

JT54
Dirt Maniac

Total posts: 170
posted July 05, 2005 09:28 AM  
I believe if you contact scooter May at about the fast boys deal he will tell you that he has also done a couple cars with stacked leafs or at least I think I remember reading that at some time....good luck and let us know how it works....also we have been experimenting with chrysler on the left and camaro on the right with this set up but we have not had a good dry smooth track yet to see if it works like we hope.

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