DW adjustable traction arms and setup

royal

royal

S1- F.T break!
Hi guys,
I've fitted the traction arms, the last of my driftworks adjustables, over the last couple of days. They are looking very sexual :D I've been looking at the alignement and wondered if I could pick your brains for a sanity check.

I've been running the arms widened a bit for the last 6mths but couldn't go any wider because I was getting quite bad bumpsteer with the stock traction arms. Now that the traction arms are fitted I've been trying to work out the best way of setting it up.

I've widened the lower and upper arms as far as they will go. The upper camber arm gets as far as it will go before the others. I've set it for roughly -1 neg camber.
I made up a pikey diy thing to show how much bumpsteer I was getting as I lifted and dropped the car on the jack with the coilovers removed.

It seemed to get less bumpsteer if I had the traction arms as short as they would go. Does this sound right? Just wanted a sanity check as it wasn't what I expected and my amazing contraption was rather 'DIY'.



Sorry if I've got terms wrong, just trying to work it out as I go!
 
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Thanks for the chat Bon. Once I've finished I'll stick the details in my project thread. Good to pass it by someone so I know I'm not seeing things, spending too much time stuck under a car on my own!
 
Also interested in this stuff, as I'm doing my alignment soon too, and the traction arms are the ones that confuse me.
 
I was under the impression that shortening was for standardish height and you lengthened them if the car was low? My car gets crazy toe-in under compression so I lengthened mine, not driven it anywhere yet though:rolleyes:
 
I found it was the other way around, hence why I posted this and had a chat with the DW guys for a sanity check.

My car was very low. I set things up with the suspension arms at ride height and then measured the toe change by compressing. If was very DIY measuring but the resulting setup was awesome to drive.

If I made the traction arm longer then I got more toe change through the range of movement under compression. When I shortened them I got a lot less toe change under compression.

Its nice to have a little toe in on compression as it gives you more drive through turns when skidding and on the power.
 
interesting, I guess I'll just have to muck about with mine and see what works. Did you just put a big straight edge across the wheel and go by eye?
 
Pretty much yes. I messed around for a good few days trying different things with string and wood and stuff. The most awkward thing was not having anything to float the wheels on like the little metal squares at the garages so they wouldn't jerk move. There's some pictures of various contraptions here which will help you sleep :D :
Royals GTS-T skidding skybus - Page 3 - Skyline Owners Forum
Turns out I did it the hard way and would have been easier to just make a 'square' around the car.
 
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