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Suspension, Handling & Brakes Suspension set ups, uprated brakes

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Old 28-11-2017, 11:39 AM   #1
welshpug
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cup car inverted insert leg dimensions.

helping a friend build a rallye rally car, looking to find the length of the tube used and height of the steering arm, it'll be a tarmac car using bilstein inserts, so if possible we will use the off the shelf escort conversion tubes.
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Old 30-11-2017, 10:54 AM   #2
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no cupcars about?
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Old 19-12-2017, 01:50 PM   #3
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anyone?

I got this far and compared a 205 Group A bilstein gravel upright, dimensions look very close!

106 non pas front leg assembly

some dimensions scribbled down.

106 non pas front leg assembly


though I did remember that these are stock s1 non pas legs, so the steering arms are too long to add any useful caster from the standard lower balljoint pivot as the steering rods will hit the bodywork.
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Old 03-01-2018, 11:09 AM   #4
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didn't find any info, but did speak to Dave at Satchell Engineering and he said there isn't a set height, it depends on the ride height as its impossible to totally eliminate bump steer so you get the best compromise for your height.

Picked up a Conversion tube from Godspeed Motorsport yesterday.











Tube fits nicely in the hub carrier, not as snug a fit as I'd like as it goes in by hand, but will be welded anyway, steering arm is a mil larger ID than the tube but is tighter than the OD of the threads, and as the threads are too long that wont be a bit problem, buff them down in the lathe till its a snug fit.



As soon as we have some steering arms sorted and some top mounts we can tack the steering arm in place and measure the bump steer, we will start off with the arm in the standard location and work from there.
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Old 03-01-2018, 11:13 AM   #5
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Its and ideal time to make you steering mounts to allow long springs in there.
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Old 03-01-2018, 01:27 PM   #6
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good point Dave! hadn't thought of that.
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Old 03-01-2018, 03:04 PM   #7
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If you move it down and try get a top mount on top of the strut tower you could find 3" handy enough.
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Old 15-01-2018, 07:54 PM   #8
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Last edited by welshpug; 16-01-2018 at 07:58 AM.
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Old 16-01-2018, 06:30 AM   #9
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Have you got a jig to get both sides identical.. Ackerman angle and all that geeky shit...
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Old 16-01-2018, 07:59 AM   #10
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yep, craig welded up a load of metal bolted to the steering arm and brake caliper lugs, one for each side.

haven't measured it but 4 degrees has been mentioned for the steering arm angle.



springs are something like 10" things I had kicking about and we drilled the top mounts out to 14mm just to get them on the car.

Last edited by welshpug; 16-01-2018 at 07:59 AM. Reason: Automerged Doublepost
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Old 16-01-2018, 08:19 PM   #11
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That's the job now, you can run the car low and still have travel. I don't think bump steer is an
issue with this type of setup either as the steering arms are so long and mounted right in the
center of the car unlike a conventional steering rack with short arms.
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Old 17-01-2018, 12:20 PM   #12
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Thanks Dave, I think Bump steer can still be improved on and having the rods at the middle with short wishbones can still cause a large difference in the arc of the components differing.

Any idea of an inexpensive top mount we could use? and also what kind of spring, currently we've just got standard top mounts drilled out to 14mm so we could dangle them on the car.

engine went in last night and we can measure up for fuel lines and driveshafts soon.
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Old 17-01-2018, 05:37 PM   #13
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You could use any type of aftermarket alloy top mount and just re-drill the turret to match.

I would mount it on top of the turret too and drill a 2 1/2" hole to allow your spring cap to
sit where your old top mount would have.
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