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Author Topic:   leaf spring sliders
greenracer2
Dirt Newbie

Total posts: 1
posted January 28, 2003 08:37 AM
I need help mounting my sliders I checked the tech article by AFCO and the only detailed instructions were for chrysler type leafs would I mount them the same I run chevy sock leafs

c21
Dirt Freak

Total posts: 346
posted January 28, 2003 10:46 AM

in so far a height (rear eye height vs front eye height) you may want to experiment here.... IIRC Afco and Landrumm suggest mounting the rear eye about 9" higher than the front (at this height, you will run little to none lowering block). In so far as horizantal location, they both seem to reccomend splaying the springs (farther from centerline in the rear than the front) about 1-2 inches per side.

In so far as fore and aft location, I would recomend bolting them in (instead of welding) if you can ... so that you can adjust this location (if for no other reason to compensate for loss of arch).

To determine your starting (fore and aft)location, the simplest way is to install the slider on the spring and set the car down on the tires (to load up the springs)and then position the sliders using the folowing guidlines:
On a flat to lightly banked track, I would position the left slider so the spring eye is 2/3 of the way to the rear of the slot at static (to allow for a lot of LR extension) and the opposite on the right (to allow for a lot of RR compression).

On a higher banked track, I would mount the left slider so that the eye is centered , but mount the right side the same as above (2/3 foreward in slot).

fine tuning:
when you run them, look at the grease trail and then adjust the sliders so that the travel is centered in the slot.

c21

[This message has been edited by c21 (edited January 28, 2003).]

bill t fast
Dirt Roller

Total posts: 7
posted January 28, 2003 02:24 PM
very informative where do you guys research all of this amazing knowledge??

c21
Dirt Freak

Total posts: 346
posted January 28, 2003 04:08 PM
it's all out there, Manufacturers have a vested interest in knowing how to properly use the products they make ..... and they often do a good job of relating this info.

There is a lot of written technical info out there, it doesn't all agree .... but it gets ya to thinkin'.

Then you just have to take what you think you know, try it and take a lot of notes.

we're all learning, those who pay attention to detail .... sometimes learn a little faster.

nothing amazing, just fascinating
c21

thebigdirt
Dirt Full Roller

Total posts: 33
posted January 28, 2003 07:26 PM
throw the sliders out. i found rocks or dirt pack the slider and bind up. go with the old shackel mount they are more reliable and easier on the spring

Big Dawg
Dirt Full Roller

Total posts: 36
posted February 02, 2003 11:49 AM
Sliders work fine,as long as you take them apart and clean them every now and then.also I suggest using anti-seize on them to keep them sliding freely.

bill t fast
Dirt Roller

Total posts: 7
posted February 04, 2003 02:36 PM
ok I have began mounting my sliders, while referancing this forum, and steve smith's dirt track tech book. Smith recommends approximately 5 degree spring incline from front to rear. A 9" height difference works out to be around 11 or 12 degrees,where as five degrees is about a 6 1/2" height difference. Ichose to split the differenceand go with about 8 degrees aproox 7 3/4 height differnce. wondering if this was the smart choice

66jj
Dirt Freak

Total posts: 352
posted February 04, 2003 03:43 PM
smiths books are old in my opinion, but a stock camaro is if i remember correctly, 5-6 inches max, and many of them work great.

landrum says 9 inches..

i have allways ran mine with a weight jack on them so anywhere between 7-12 was what i used, it worked just fine.


c21
Dirt Freak

Total posts: 346
posted February 04, 2003 04:35 PM
quote:
Originally posted by bill t fast:
ok I have began mounting my sliders, while referancing this forum, and steve smith's dirt track tech book. Smith recommends approximately 5 degree spring incline from front to rear. A 9" height difference works out to be around 11 or 12 degrees,where as five degrees is about a 6 1/2" height difference. Ichose to split the differenceand go with about 8 degrees aproox 7 3/4 height differnce. wondering if this was the smart choice


Bill,

I compared a lot of resourses on this topic a few years ago and decided on 9" . I found recommendations for: 5 degrees (4.7")& 7 degrees (6.5") at the low end and at the high end 9" (9.5 degrees) from Landrum and finaly 8.5" to 10.5" (9 to 11 degrees) from AFCO.

At the time, I was using Landrum springs, so I decided to follow their reccomendation.

With stock front mounts, mounted 9" higher in rear .... I found I did not need (could not use) lowering blocks , but the car worked great. A little less anti-squat then one might want and very little rollsteer ..... but it hooked up really nice (set a track record for fastest lap that still stands after 2 years).

My thinking was that I could space it down if I felt the need. I messed arouund with spacers up to 1", but never found a set up I liked better.

c21

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