johnc Posted October 19, 2007 Share Posted October 19, 2007 I get this quesiton daily. Assuming you've spent money and time building adjustability into your suspension AND are willing actually adjust then these recommendations make sense. Otherwise, take the car to Pep Boys, tell the tech to "Make it all green", and hope your tires last a long time. Track/Autocross For 225 to 245 width radial DOT tires try these alignment settings: Front Camber: 3 to 3.25 neg Caster: 6 to 7 positive (even on both sides) Toe: 1/8" to 3/16" out Ride height: 5 1/2" to 6" measured at the front of the rocker outboard of the pinch weld seam. Rear Camber: 2.5 to 3 neg Toe: 1/16" to 1/8" in Ride height: 5 3/4" to 6 1/4" measured at the front of the rocker outboard of the pinch weld seam. For tire widths over 245 try these alignment settings: Front Camber: 2.75 to 3 neg Caster: 6 to 7 positive (even on both sides) Toe: 1/16" to 1/8"" out Ride height: 6" to 6 1/2" measured at the front of the rocker outboard of the pinch weld seam. Rear Camber: 2.25 to 2.5 neg Toe: 1/16" to 1/8" in Ride height: 6 1/4" to 6 3/4" measured at the front of the rocker outboard of the pinch weld seam. Street For 225 to 245 width radial DOT tires try these alignment settings: Front Camber: 1.25 to 1.5 neg Caster: 4 to 5 positive (even on both sides) Toe: 1/16" out or 0 Ride height: 6" to 6 1/2" measured at the front of the rocker outboard of the pinch weld seam. Rear Camber: 1.25 to 1.5 neg Toe: 1/16" to 1/8" in Ride height: 6 1/2" to 7" measured at the front of the rocker outboard of the pinch weld seam. For tire widths over 245 try these alignment settings: Front Camber: 1.25 to 1.5 neg Caster: 4 to 5 positive (even on both sides) Toe: 1/16" out or 0 Ride height: 6 1/2" to 7" measured at the front of the rocker outboard of the pinch weld seam. Rear Camber: 1.25 to 1.5 neg Toe: 1/16" to 1/8" in Ride height: 7" to 7 1/2" measured at the front of the rocker outboard of the pinch weld seam. Caveat Emptor: These are starting points for you and your car. Be ready and willing to change them based on your preferences and local conditions. These alignment settings might be a bit tricky in the rain and even trickier in snow or ice. Your tires will wear a bit faster then the stock alignment settings. If that's a concern of yours, stay with the stock numbers and don't ask me dumb quesiton like, "Well... how much faster will they wear?" or "How many miles will the tires last with the Track alignment setting?" If you're asking those questions you shouldn't be reading this thread. Go buy a Honda... 2 Link to comment Share on other sites More sharing options...
jgkurz Posted October 19, 2007 Share Posted October 19, 2007 I vote for sticky! This is for S30 and S130. Correct? Link to comment Share on other sites More sharing options...
JMortensen Posted October 19, 2007 Share Posted October 19, 2007 I'd go with a bit of toe in on the front for the street alignment if you don't like a car that wanders... Link to comment Share on other sites More sharing options...
johnc Posted October 19, 2007 Author Share Posted October 19, 2007 S30 only and front toe is really up to each person's preference. What I'm recommending above for the street are settings for "spirited" driving. Link to comment Share on other sites More sharing options...
IdfMF Posted October 20, 2007 Share Posted October 20, 2007 Excellent info and just what I needed. Thanks, John Tom Link to comment Share on other sites More sharing options...
Clifton Posted October 20, 2007 Share Posted October 20, 2007 Your ride height would depend on wheel diameter/tire diameter. What diameter are your basing them on?. Link to comment Share on other sites More sharing options...
johnc Posted October 20, 2007 Author Share Posted October 20, 2007 For 225s through 245s I figured a tire diameter around from 23" to 24". For anything larger I figured a tire diameter around 25". Guys, let's not burrow into detailed setups for cars with 285/35-18s, painted blue, with gold spinners, dirt tracked on Saturday, and driven to church on Sunday. The settings I posted above are general starting points and are meant to get someone close. From these starting points a person should adjust for their specific vehicle based on testing and driver preferences. Link to comment Share on other sites More sharing options...
1 tuff z Posted October 20, 2007 Share Posted October 20, 2007 john, thanks:hail:much for posting these specs. once again, you prove to be a great resource. may i add one little correction. the latin phrase you use at the end, i believe should be "caveat utilitor" for "user beware", not "caveat emptor" buyer beware...lol! david Link to comment Share on other sites More sharing options...
Thumper Posted October 20, 2007 Share Posted October 20, 2007 John, what about a bonneville flats speed car. Would you stick with the street setup or have different settings? Thanks Link to comment Share on other sites More sharing options...
mario_82_ZXT Posted October 20, 2007 Share Posted October 20, 2007 John, what about a bonneville flats speed car. Would you stick with the street setup or have different settings? Thanks I believe it's completely different. My friend building a Z for LSR was telling me the specs a while back, but I sadly can't remember them. All I remember was run as much caster as possible but still allowed within the rules and your car. The specs might actually be in the rule book for the salt flats. Mario Link to comment Share on other sites More sharing options...
Clifton Posted October 20, 2007 Share Posted October 20, 2007 what about a bonneville flats speed car. Would you stick with the street setup or have different settings? Thanks I wouldn't want a little toe out (street 1/16" out or 0) on that. atleast 1/16" in. Don't need camber either. More caster would be good. Link to comment Share on other sites More sharing options...
kyle Posted October 25, 2007 Share Posted October 25, 2007 Track/Autocross For 225 to 245 width radial DOT tires try these alignment settings: Front Camber: 3 to 3.25 neg Rear Camber: 2.5 to 3 neg Hi John- looks like you're suggesting -.25 to -.5 more camber in the front. I lack adjustability, but do not lack a drill; planning to relocate the lca pivot for the camber. What sway bars are you factoring in to those camber numbers? Link to comment Share on other sites More sharing options...
Nismo280zEd Posted October 26, 2007 Share Posted October 26, 2007 I run a welded diff in my 240 and found that running zero toe upfront dramatically helped me turn. I also run about 1.5-1.7neg camber all round on the street. Works great. Just wanted to say I run similar settings after much trial and error and they work great. Link to comment Share on other sites More sharing options...
midnightmoonlight Posted June 10, 2008 Share Posted June 10, 2008 What about cantilever slick allingment? bias ply 23x9x15 ect. I think Im going with 1.5 front and 1 in the rear, 5-6 caster, 1/4 toe for autox. This will be my initial setup and see how it goes Link to comment Share on other sites More sharing options...
johnc Posted June 10, 2008 Author Share Posted June 10, 2008 Guys, as I said above, I'm not going to get into specific alignment numbers. I can spend a hour a day posting in this thread and its not worth my time to do that. Link to comment Share on other sites More sharing options...
midnightmoonlight Posted June 12, 2008 Share Posted June 12, 2008 Cantilever slicks need alot less camber then dot r6 and a6. I just thought having these numbers would complete your list. They only need 1-2 degrees from what I understand. Link to comment Share on other sites More sharing options...
zr240 Posted June 23, 2008 Share Posted June 23, 2008 I find with toe out on the front my race car wanders a bit under heavy braking Race car with 285 slicks all round I like to run 1-2mm toe in Ash Link to comment Share on other sites More sharing options...
braq Posted February 22, 2010 Share Posted February 22, 2010 Hi, Yes its normal since you have now changed the factory settings that would allow the vehicle to travel straight.......... Link to comment Share on other sites More sharing options...
zredbaron Posted March 12, 2011 Share Posted March 12, 2011 Guys, let's not burrow into detailed setups for cars with 285/35-18s, painted blue, with gold spinners, dirt tracked on Saturday, and driven to church on Sunday. Haha, I love stumbling upon these comments unexpectedly... Thanks John and to everyone else who contributed their setups. Great thread! Link to comment Share on other sites More sharing options...
Easy Does It Posted April 6, 2011 Share Posted April 6, 2011 My car is going into the shop for an alignment. Exactly what I was seeking Thank you. Link to comment Share on other sites More sharing options...
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