CHOP SHOP
Well-Known Member
my favorite is the jeep racers with the footlong stretched pitman arm made from plate steel to quicken things up!:redneck: :beer:
-
Help Support Hardline Crawlers :
Ackerman steering effect.
- Thread starter briejer
- Start date
my favorite is the jeep racers with the footlong stretched pitman arm made from plate steel to quicken things up!:redneck: :beer:
PORTER
Well-Known Member
Boy, you are not going to let this go are you. Bottom line is I dont sweat the small **** and dont feel small changes are going to make that big of an effect on my wheeling rig. It was built by S&N Fab who knows a thing or two about building a rig that gets to the top of a climb and its obvious that it works well. After me and you debated this topic, I talked with as few people that made a few changes to achieve proper ackerman angle and they told me that they didnt see any noticable differences in their steering to warrant the money spent. So I will tell you again while you are in the garage tweeking on your rig so that in theory everything is perfect, I will be out wheeling and as usual making the climbs. BTW, if you want to do an experiment to see if you can improve the steering of my rig on your dime have at it. You never once complain when you are behind the wheel of it that it doesnt work well.
Boy, you are not going to let this go are you. Bottom line is I dont sweat the small **** and dont feel small changes are going to make that big of an effect on my wheeling rig. It was built by S&N Fab who knows a thing or two about building a rig that gets to the top of a climb and its obvious that it works well. After me and you debated this topic, I talked with as few people that made a few changes to achieve proper ackerman angle and they told me that they didnt see any noticable differences in their steering to warrant the money spent. So I will tell you again while you are in the garage tweeking on your rig so that in theory everything is perfect, I will be out wheeling and as usual making the climbs. BTW, if you want to do an experiment to see if you can improve the steering of my rig on your dime have at it. You never once complain when you are behind the wheel of it that it doesnt work well.
Explain how your ackerman is so wrong?
PORTER
Well-Known Member
Why not ask Robin, he is the expert on the subject.
Why not ask Robin, he is the expert on the subject.
ha ha ha ha, I gathered that, look at the pictures, they're totally realistic. what steering arm's do you have?
PORTER
Well-Known Member
The ones that J&T sold me when they built my rig. You guys stock them, and have installed many on alot of the buggys you build. BUT, you might want to tell your bosses that they need to rengineer them as they are an inferior desigh due to quote "Improper ackerman angle" end quote.
worked just fine:cheer: also worked fine for many years on many differant trucks running the desert races down south and never heard of any issues on any of them either.
Attachments
My main point is that ackerman has been used since the 1700's on horse drawn carriage,Formula I, Nascar, Desert racing, Heavy Equiptment, tractors ect, and every car manufactuer in existance. Even your riding lawnmower uses the ackerman princible.
BUT, it does not apply to specialty built 4x4's?
BUT, it does not apply to specialty built 4x4's?
Binder
Well-Known Member
Only when all four wheels are on the ground. You plan on driving like a puss?:stirpot:
Binder
Well-Known Member
You do realize that with four wheel steering in order to have "correct akerman" the angle would need to change on both axles at once while only turning one. Good luck making that work.
I always do.
The above statement make no sense to my small brain. Please explain it to me.
Do you have a reference to this?
Unless I'm mistaken, Ackerman angles allow the steering wheels to turn different radius' as a vehicle goes through a corner. IE outer tire turns less, inner tire turns more. 1700 horse drawn carriages have solid axles without knuckles. It functions as a spool. And the whole axle turns relative to the body, the wheels are always parallel to one another. How would the ackerman principle apply in that situation?
I think a lot of people also tend to forget that with a steering axle under power (spool, engaged ARB, locker) that ackerman angles don't really matter anyway. Part of the ackerman principle is the outer wheel turning less/inner wheel turning more AND they have to turn at different speeds. IE outer wheel travels faster while the inner wheel travels slower through a turn. With a locked steering axle this can't happen.
Binder
Well-Known Member
Like this.
Attachments
It was the "only turning one" that threw me off. I do have equal ackerman built into both axles. I guess the acid test will be when it sees the trail.
Just a theroy in my small brain, but I think with a tighter turning radius it will work better that a normal turning radius. I also think it will help with front and rear" burns" while the axles are open and the cutting brake is applied.
I could be all wrong and it will be more if a driving nightmare than before.
http://en.wikipedia.org/wiki/Ackermann_steering_geometry
Ackermann steering geometry is a geometric arrangement of linkages in the steering of a car or other vehicle designed to solve the problem of wheels on the inside and outside of a turn needing to trace out circles of different radii. It was invented by the Anglo-German inventor Rudolph Ackermann (1764
Erasmus Darwin may have a prior claim as the inventor dating from 1758:stirpot:
Yup, and it works wonders on our Baja Car:awesomework:
Well robin you may be the rirst guy in wheeling that has actually gone through the step's of checking correct ackerman. Idealy you want your inside tire to turn a few degrees more than the outside and all is well, I don't feel that your spending you time wisely trying to get it perfcect.
