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Author Topic:   Leaf spring leading or trailing
tilley88
Dirt Forum Champ
Total posts: 879
posted June 29, 2004 06:54 PM  
How much do you Camaro guys lead the left side? How much is too much?

UNVRNO
Dirt Maniac

Total posts: 136
posted June 29, 2004 07:36 PM  
leading left side would loosen your car, if thats what you want you would need quite a bit.

when the leafs compress the right side will compress more and move the rearend back more than the left removing your lead you put in..

tilley88
Dirt Forum Champ
Total posts: 879
posted June 29, 2004 08:34 PM  
Thanks for the reply. How much left lead should I put in? Track is a real tight 3/8ths.

tilley88
Dirt Forum Champ
Total posts: 879
posted June 30, 2004 02:58 PM  
Anybody?

marshalr
Dirt Maniac

Total posts: 148
posted June 30, 2004 04:37 PM  
I like 1/8" RR lead. I string the Right side and look for 1/8" gap from the string to the sidewall on the front of the tire. I run a couple of 3/8 mile dirt tracks, 1 kinda flat, 1 high bank.

UNVRNO
Dirt Maniac

Total posts: 136
posted June 30, 2004 05:11 PM  
If your rr travels 4 inches, and your left travels say to or 3. I personally would not be afraid to lead the left or trail the right, as much as a inch.

I think if the tracks that tight a better solution in my mind would be to put your stiffer rear spring on the rr.


tilley88
Dirt Forum Champ
Total posts: 879
posted June 30, 2004 05:36 PM  
Is 3 inches of left lead too much?

te33
Dirt Freak

Total posts: 237
posted June 30, 2004 08:34 PM  
yep

UNVRNO
Dirt Maniac

Total posts: 136
posted June 30, 2004 09:04 PM  
That seems like it would drastically affect your way to go down the straights...

Try it and let us know!!!!


juliaferrell
Dirt Freak

Total posts: 370
posted June 30, 2004 09:26 PM  
What handling characteristics are you looking for and I'm sure there is a different solution than leading the rear. Leaf cars shouldn't need lead when set up properly

tilley88
Dirt Forum Champ
Total posts: 879
posted June 30, 2004 10:34 PM  
The car is kinda tight thru the turns. We can't get much stagger outta the tires we gotta run. I'm not gonna run 3" of lead, but thinkin about 1". Is that too much? I like a nuetral car, leaning towards loose.

snowman
Dirt Freak

Total posts: 241
posted July 01, 2004 06:10 AM  
Hi Tilly, My thoughts on rear end lead.....I have always reccomended that one starts square.......and that doesn't nessasarily mean stock......"stock position" can be out.......You should assume that the rear is out of square untill you verify what you have.......

Sometimes simply fixing the out of square condition fixes the car........depends on which way it's out.......

There are those who would call leading the rear a "crutch".......I would generally tend to agree........BUT....If I were "crippled" by the rules......then somebody,please, give me a crutch.......LOL

I am personally willing to lead the rear about 1/2........If a 1/2 don't fix it, then I feel you are better off making some spring changes...........

I might go a bit more if, I have no stagger availible and the track is small and tight........

Good Luck,
snowman

juliaferrell
Dirt Freak

Total posts: 370
posted July 01, 2004 11:09 AM  
If the track is small and tight and you are just having trouble through the middle and coming off then raise ride height on RR by extending shackle. Stiffen the right rear up on short tracks and midgeting the corners works well. Just want the car to go left when it gets on the gas. Do you know your scale numbers and spring rates?

tilley88
Dirt Forum Champ
Total posts: 879
posted July 01, 2004 11:46 AM  
LF 1000, RF 1300, both rears 200, shocks- LF 1020 Afco(ex. heavy), RF 1022 Afco(ex. heavy/med.), LR 93, RR 94, scale numbers- 53% left, 54% rear, 49.4% cross, 95 lbs. left bite. I'm gonna change the front springs to LF 950, RF 1200 soon. Maybe go to Bilsteins in the front, too. I run 2-offs in the front, 4-offs in the rear because the rear-end in the car is 3" wider than the front. That makes the tracking 1" wider at the front w/tires mounted. I run straight-up stagger in the front, and about 1.5" in the rear. Ride heights are 6" front, 7.25" rear. I under stand the way the leafs should work under compression turning left, just trying to get the car to turn left the way I like it to. The car should be a little different now. The numbers I just typed in are the way the car sits now. We finally got a chance to really get under the chassis and go thru it, and found alot of things wrong. RR shock was blown, rear shackles and u-bolts were way loose, had too much lowering block, leafs were hung too low on the shackles, offsets were wrong for the tracking, front adjusters were too short, front steering components were all loose, front shocks were rubbing on adjusters, left side tie-rod assy way longer than the right side, caster/camber/toe out of wack, etc. I can set the leafs straight-up, or lead or trail, just needed some opinions on the subject. Popular opinion seems to be straight-up. That's what I'll do. I love this forum. If you can get a straight answer anywhere, this would be the place! Thanks, and I'll let you guys know how it works out! BTW, feel free to give me feedback on my set-up.

UNVRNO
Dirt Maniac

Total posts: 136
posted July 01, 2004 03:55 PM  
If you even up your front springs to zero split.

that would loosen you on entry and exit.

200 is a ton of split in my mind.


Scoot
Dirt Forum Champ
Total posts: 517
posted July 01, 2004 06:21 PM  
Tilley what would you give for a set of Bilstein stock mount front shocks? I have a set off my camaro ran about a season and a half on them. I took them off because they were rubbing somewhere and I couldnt determine where.

------------------
Scoot
Smith Racing Team
870-365-5989

rblracer
Dirt Roller

Total posts: 25
posted July 01, 2004 08:52 PM  
I have afco springs and landrum adj shackles, no lead, NO PROBLEMS

[This message has been edited by rblracer (edited July 01, 2004).]

tilley88
Dirt Forum Champ
Total posts: 879
posted July 01, 2004 11:41 PM  
Hey Scoot, thanks for the offer, but I just picked up a set of 'steins off eBay. BTW, I just came from the shop, got the rear squared. UNVNRO, last Camaro I ran had 300 lb. split in the front and was bad fast. But as everyone knows, each chassis is different. And your help is valued very much, keep it comin'. Us leaf guys gotta keep together, 'cause them metric boys "think" they're catchin up!

    

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