Posted By: bad543dart
front end alignment - 01/27/11 04:13 AM
Someone have the specs for a drag race alignment its a 69 dodge dart with a big block thanks.
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With drivers race ready weight in the car and the car raised 1" or so to simulate down track body lift at speed
Camber, 0 to -.5 degrees, the same on both sides if possible. (if not, as little split as poss)
Caster, as much as you can get. Again, keep the split as close to 0 as poss.
Toe, 1/16th " in on each side for a total of 1/8" toe in.
This is of course after ride height is set and the rear end/thrust angle is set if possible.
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What are your thoughts on a Heavy Cement truck/Oil rig. More toe in. Those are my thoughts. Sorry for the Hijack. But it does apply to the concept to toe in., mike
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What are your thoughts on a Heavy Cement truck/Oil rig. More toe in. Those are my thoughts. Sorry for the Hijack. But it does apply to the concept to toe in., mike
Ya know Mike, Heavy equipment isn't really my forte
But I would think that since they are mostly run loaded down it would be better to align it loaded.
It would really depend on just how much the chassis settles when loaded as to happens to the toe angles. It may not change at all.
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Was that a test of my alignment knowledge
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Anybody ever use one of the home alignment tools that are available on ebay and other places? With the cost of alignments, if they work, it seems that they would pay for themselves quickly.
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Was that a test of my alignment knowledge
No just your thoughts about the heavier vehicals. Im sure your alignment knowledge is fine.
Im helping refurbish a "Complete Overhaul" on a Cement truck chassis to a oil/swab rig conversion that was converted by a Texas company over 30 years ago.
My job was the electrical, but was asked about the front end toe alignment. The owner stated that the front caster and camber were fixed. But asked if I knew how to set the toe on such a custom rig.
My thoughts were on a heavy vehical like this maybe a little extra toe in would be better.
The owner pointed the tires forward and bolted up the tierods.
The tires are 48" tall and the max speed of the vehical is around 55 MPH+
IMO, after the initial adjustment Road manners may dictate the final adjustment. mike
Quote:
Anybody ever use one of the home alignment tools that are available on ebay and other places? With the cost of alignments, if they work, it seems that they would pay for themselves quickly.
Quote:Quote:Quote:
Was that a test of my alignment knowledge
No just your thoughts about the heavier vehicals. Im sure your alignment knowledge is fine.
Im helping refurbish a "Complete Overhaul" on a Cement truck chassis to a oil/swab rig conversion that was converted by a Texas company over 30 years ago.
My job was the electrical, but was asked about the front end toe alignment. The owner stated that the front caster and camber were fixed. But asked if I knew how to set the toe on such a custom rig.
My thoughts were on a heavy vehical like this maybe a little extra toe in would be better.
The owner pointed the tires forward and bolted up the tierods.
The tires are 48" tall and the max speed of the vehical is around 55 MPH+
IMO, after the initial adjustment Road manners may dictate the final adjustment. mike
Heavy truck suspension *is* my forte...I assume this is a straight-axle rig, no front wheel drive? Camber is built into the axle, but caster is adjusted with wedge shims between the spring and axle. With 48" tall tires, you're going to like a bunch of caster, 7-10*. Set toe last, and set to the minimum of spec-the more caster you have, the farther up from horizontal the closest points on the tires so less measured toe.
Honestly on something that big and slow, your toe can be all over the place and you may not notice. I'd spec the axle, or just go 1/8" and watch the tires over time.