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Old 10-09-2015, 08:35 PM
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How Much Steering travel left and right

I was looking at the front end on the coupe today. I was checking clearance of the steering parts when I noticed interference between the tie rod and 4 link bat-wings. I saw that full left or full right turns caused interference between the tie rod and the lower part of the bat wing. They only lack maybe an 1/8th inch being able to clear the bat-wing.

I think I can tighten up a few things and get clearance from the bat-wing I need but this brought up another question. How many degrees of travel left and right should I be looking for? I know I am looking at 15 deg + and 15 deg - of straight ahead. I am wondering if I should be seeing more spindle travel or is 30 total degrees all that is needed?

Here is the specs on the front end.

1. Superbell 4 in drop axle,
2. Posy Super-Slider spring over axle
3. Parallel 4 link Bat-Wings.
4. 193? round spindles.
5. P&J dropped crossteer steering arms 1.75 inch drop
6. 64 ford tire rod ends mounted with nut on top. no steering box mounted just yet.

What do you think I should be able to get in the way steering travel?

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Old 10-10-2015, 06:56 AM
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You say "full" left and right, what's stopping the travel (other than the interference)? 15 either side of center doesn't sound like enough to have a decent turn radius...

Russ
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Old 10-10-2015, 12:47 PM
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when I try to go full left or right the tie rod hits and stops on the lower part of the bat wing. I have a couple of pics to illustrate the point. When it stops and hits the bat wing I have what looks like less than the needed 15 degrees.

I agree only 15 degrees makes for a wide turning radius and that would not be practical for daily ops.
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Old 10-10-2015, 02:01 PM
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Bend the Tie Rods tubes?....We bend them all the time on our dirt cars and don't have issues.

Can you put the TRE on top? stud facing down? That won't work if there is a taper but it might if its a straight hole.
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Old 10-10-2015, 04:54 PM
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Quote:
Originally Posted by johnsongrass1 View Post
Bend the Tie Rods tubes?....We bend them all the time on our dirt cars and don't have issues.

Can you put the TRE on top? stud facing down? That won't work if there is a taper but it might if its a straight hole.

I tried flipping the rod but then it hits the bar on the top. I was looking at the ackerman and it is off too. Looks like the best solution will be to put just a slight bend upward on the steering arms. I need to bring both arms in about 3/8th of an inch so for the correct ackerman, So I will do all of it at once. It still would be nice to know the total steering travel..
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Old 10-10-2015, 07:29 PM
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Are you sure you mean Ackerman?

Ackerman as I know is the the difference between how much one tires moves (in degrees) than the other tire. It's only adjustable by moving the outer TRE closer or further from the spindle. All cars have some Ackermann built in to compensate for the arc the tire travels in relation to the other wheel while going around a corner. Some is needed but the amount varies with chassis design and intended usage.
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Old 10-10-2015, 08:23 PM
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heat and bend ?

it looks like they could be bent up to be in the center of the bat wings. My dropped 37 axle was already set right when I got it and the early plymouth tube axle on my son's 22 dodge lakester cleared when we changed from a 2 spring front end to a Ford style with cross spring and hairpins, some info from the Hamb. a lot more older style builds over there
Bending spindle arms (how far??) | The H.A.M.B.
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Old 10-10-2015, 09:13 PM
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Quote:
Originally Posted by johnsongrass1 View Post
Are you sure you mean Ackerman?

Ackerman as I know is the the difference between how much one tires moves (in degrees) than the other tire. It's only adjustable by moving the outer TRE closer or further from the spindle. All cars have some Ackermann built in to compensate for the arc the tire travels in relation to the other wheel while going around a corner. Some is needed but the amount varies with chassis design and intended usage.

Setting the Ackerman, this is how i do it!
Draw a straight line from the center of the kingpins straight to the center of the rear differential. Now make sure both side tie rod ends are centered on this line with the wheels straight forward. If necessary bend the steering arms in or out so that tie rod attach point intersects the line from kingpin center to the center of the rear axle..
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Old 10-11-2015, 09:24 AM
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steering

i put a 4" super bell on my bucket.. i found out putting the steering arm in the rear didn't work and hit.. so i just reversed the steering arms from left/right and put steer rod (drag link)in front of axle. worked just fine.. now the ackerman was off i know, but not enough to worry about or not work.. worked fine.
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Old 10-13-2015, 02:11 PM
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just heat the steering arms red hot and bend them up so the tie rod is in the middle of the 4-bars. Don't quench them, let them cool naturally in still air. it's done all the time.
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Old 10-13-2015, 07:49 PM
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Yeah it looks like a a session with the torch is in order. I need to bring the arm up about an inch to clear the bat wings. the arms need to move outward 1/2 inch to fine tune the ackerman. I have a nice rosebud for that job.

It would be nice to know the actual travel of the spindles so I could have some comparison for when I finish this front end up. However, I will have to use what ever I get..
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