Wheel Alignment Settings

RiceThief · Post by **RiceThief** » Sun Jul 17, 2011 8:29 pm

I going in for a wheel alignment soon and I would like to know what settings you are running. In particular what camber, caster and toe at the front and what toe at the rear as I only have the factory adjustment.

jwebb2876 · Post by **jwebb2876** » Mon Jul 18, 2011 12:53 am

-1.5 camber
1mm overall toe out (0.5mm each side)
whatever stock castor is

That's on a GJ Scorpion at stock height with spun strut tops, once I drop it 4" or so I expect it'll be at ~-3deg camber :P

avandull · Post by **avandull** » Mon Jul 18, 2011 9:09 am

Camber front= -4 Degrees
Camber rear= -1.5 degrees
Caster front= Maximum possible Positive caster, without the wheel hitting the front of the wheel arch.
Front Toe = 2mm toe in

These settings could be considered a little extreme for a road car. So these are the factory settings.

Camber front =0
Camber rear =0
Caster front =5 1/3 degrees Positive
Front Toe= 2mm toe in
Rear Toe= 0

dirtygalant · Post by **dirtygalant** » Mon Jul 18, 2011 1:20 pm

do they really have toe IN at the front from factory? From what I understand it should have toe OUT on the front, and perhaps toe IN on the rear, if any. My car was setup by a race car driver who owns a shop and he did extra toe OUT on the front which made it corner like a dream around the track.

thrash · Post by **thrash** » Mon Jul 18, 2011 5:19 pm

toe in at the front enourages understeer.. so it'd make sense that it'd be toe in from factory. Also, toe in at stand still often results in no toe angle during forward motion.

toe out sacrifices straight line stability for more eager turnability - this would explain why you felt your car handled better with toe out: I assume this was on a twisty track?

toe out can also introduce or increase tramlining.

coop1er · Post by **coop1er** » Mon Jul 18, 2011 5:40 pm

Normally rwd cars have toe in and fwd cars have toe out. Cars set up for a track have much different requirements than passenger cars.

Lummy · Post by **Lummy** » Tue Jul 19, 2011 5:55 pm

Agree with Avandull's settings, with the exception of the front toe, I have 2mm toe out at the front and about 1mm toe in at the rear.

That's on a Scorpion track car that handles reasonably well.

Spring rates and shock settings play a big part in the package too.

Mick · Post by **Mick** » Tue Jul 19, 2011 5:58 pm

avandulls setup is freakishly effective... a 1.01 round baskerville is proof of that.

RiceThief · Post by **RiceThief** » Tue Jul 19, 2011 7:30 pm

I should have been more clear, its for a track car but only running street tyres rather than semi slicks. Would i be better off running 0 toe and sacrifice faster turn in for more straight line stability? Particularly for eastern creek as I have never run that course either.

dirtygalant · Post by **dirtygalant** » Tue Jul 19, 2011 8:57 pm

I have 2 degrees toe out on the front and I don't think it's sacrificed straight line stability, though having said that I haven't gone over 170km/h in it.

thrash · Post by **thrash** » Wed Jul 20, 2011 2:29 pm

I think the toe setting would very much depend on driver preference and track -

- do you hate your car being twitchy on the straights? If yes, don't set too much toe out. It's a compromise between twitchiness and better turn in i guess? Your confidence in your knowledge of the car's handling is perhaps more important than the actual setting as well. If you have the optimal setting, but aren't confident with it, you won't be able to capitalise on it.

- remember that any toe while in motion = more rolling resistance, so depending on the track, you'd wanna choose your settings based on whether you need to be faster in the straights or on the turns. Perhaps seek advice from people like wantsom and mrb1, who have frequented eastern creek before?

OLD FART · Post by **OLD FART** » Wed Jul 20, 2011 4:36 pm

Will be taking my JB to be checked and set up more for track work now that it is trailered to events.The owner of Fulcrum Suspension Graham Smith will be advising his staff on what the new settings will be.
Happy to pass them on when I have the data :)

Lummy · Post by **Lummy** » Wed Jul 20, 2011 6:43 pm

With 2mm toe-out and a terminal speed of 215ish at Eastern Creek, my Scorpion doesn't feel twitchy at all. I get a little twitchy half way around turn 1, but that's not the car's fault!!

RiceThief · Post by **RiceThief** » Wed Jul 20, 2011 7:39 pm

Rad if you can get the info that would be great. Which fulcrum suspension is doing your work?

Thanks lummy will keep it in mind.

1320ft · Post by **1320ft** » Wed Jul 20, 2011 7:51 pm

OLD FART wrote:Will be taking my JB to be checked and set up more for track work now that it is trailered to events.The owner of Fulcrum Suspension Graham Smith will be advising his staff on what the new settings will be.
Happy to pass them on when I have the data :)

Tell Graham I said hello and see him in sydney soon :)

Austarion

Wheel Alignment Settings

Wheel Alignment Settings

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