Cosworth adjustable rear toe?
22-06-2016, 02:03 PM
#1
Fast Ford snapper
Thread Starter
Cosworth adjustable rear toe?
I've heard that it was a mod' 'back in the day', but yet to find anyone who's up for doing it..... Basically making the rear trailing arms adjustable so that toe can be dialled in or out?
Told it has been done by chopping the OE mount off of the arm and adding a large rose joint, and also others have done it by way of shimming the hub face.
I've currently got shims to reduce rear camber (none were available with toe mods), but the toe is still really bad, and the oversteer is the typically horribly snappy way that a lowered Sierra goes.
Not really keen on shimming with washers with 460bhp and RWD, and a 6 degree beam at over a grand sounds nice, but possibly not entirely needed on a car with already stiff suspension, as the articulation issue isn't a big deal, and if there's a cheaper way I'd be up for trying it!
Any ideas?
Told it has been done by chopping the OE mount off of the arm and adding a large rose joint, and also others have done it by way of shimming the hub face.
I've currently got shims to reduce rear camber (none were available with toe mods), but the toe is still really bad, and the oversteer is the typically horribly snappy way that a lowered Sierra goes.
Not really keen on shimming with washers with 460bhp and RWD, and a 6 degree beam at over a grand sounds nice, but possibly not entirely needed on a car with already stiff suspension, as the articulation issue isn't a big deal, and if there's a cheaper way I'd be up for trying it!
Any ideas?
Last edited by Ade; 22-06-2016 at 02:47 PM.
22-06-2016, 04:36 PM
#3
Fast Ford snapper
Thread Starter
22-06-2016, 07:11 PM
#4
I've found that life I needed.. It's HERE!!
Like these ones https://www.google.no/search?q=monde...OYKjgaZp-dM%3A.
He is not on here, but if you look under a Mondeo, Focus, Kuga etc, you will see it, they all have this adjustment type
He is not on here, but if you look under a Mondeo, Focus, Kuga etc, you will see it, they all have this adjustment type
22-06-2016, 07:20 PM
#6
10K+ Poster!!
Just go 6 degree and be done with it, you might even be able to soften the suspension and improve traction and handling
22-06-2016, 08:49 PM
#7
Fast Ford snapper
Thread Starter
Like these ones https://www.google.no/search?q=monde...OYKjgaZp-dM%3A.
He is not on here, but if you look under a Mondeo, Focus, Kuga etc, you will see it, they all have this adjustment type
He is not on here, but if you look under a Mondeo, Focus, Kuga etc, you will see it, they all have this adjustment type
Interesting!
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22-06-2016, 09:07 PM
#8
I've found that life I needed.. It's HERE!!
It`s a cheap and easy way to get adjustable toe, but of course not the same as a 6degree beam. I got a 6degree beam on the shelf for some years now, should be on the escos years ago. It`s a 2wd beam, as i gonna use Scorpio Cosworth diff, who are cheap, fits with 4x4 shafts and hade a easier life then most of the Escort and Sierra Cosworth ones
23-06-2016, 01:31 PM
#9
I've tried eccentric bolts on the inner mounts, but due to the forces on the bolts they rotated away, messing up the toe setting. It's in my 24v project thread. I also tried afding curved washers and that seems ok. But I still didn't trust it completely and had it all welded up to remove the adjustment possibility. I have now adjusted the toe shimming the hub carrier. It's very thin plates you need for toe, a lot less as for camber.
Last edited by Marc sierra; 27-06-2016 at 11:06 AM. Reason: Stupid iphone autocorrection
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Ade (26-06-2016)
26-06-2016, 08:46 PM
#10
Fast Ford snapper
Thread Starter
I've tried eccentric bolts on the inner mounts, but due to the forces on the bolts they rotated away, messing up the toe setting. It's in my 24v project terras. I also tried afding curven washers and that seems ok. But I still didn't trust it completely and had it all welded up to remote the adjustment possibility. I have now adjusted the toe shimming the hub carrier. It's very thin plates you need for toe, a lot less as for camber.
What figures did you have and have now adjusted to on the rear toe?
27-06-2016, 11:19 AM
#11
Wow the autocorrection on the spelling on my iphone really messed up my previous post. 
I've always tried to go for 0°14' on the rear toe, which equals 1.5 mm toe in per wheel. It should now also be close to that, but I have found out there is quite a bit of difference between the measurements of one alignment station and another (as in about 0°13' difference). And of course they both say theirs is correct.
So that makes it difficult to say what the real setting is.
To adjust the toe the eccentric bolts were actually quite easy. I guess if you find a solution to prevent them from rotating it is a good option. I used a sort of toothed washers to prevent the eccentric bolts from rotating. I think it worked quite OK, but I wasn't 100% sure they would hold up and didn't want to take the risk. I guess you should be able to calculate it. I think the maximum force on the bolts is about 5 kN pushing to the front and the back while cornering hard. So you should create enough friction to counter that.
I've always tried to go for 0°14' on the rear toe, which equals 1.5 mm toe in per wheel. It should now also be close to that, but I have found out there is quite a bit of difference between the measurements of one alignment station and another (as in about 0°13' difference). And of course they both say theirs is correct.
So that makes it difficult to say what the real setting is.To adjust the toe the eccentric bolts were actually quite easy. I guess if you find a solution to prevent them from rotating it is a good option. I used a sort of toothed washers to prevent the eccentric bolts from rotating. I think it worked quite OK, but I wasn't 100% sure they would hold up and didn't want to take the risk. I guess you should be able to calculate it. I think the maximum force on the bolts is about 5 kN pushing to the front and the back while cornering hard. So you should create enough friction to counter that.
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