Does anybody know what is the most aggressive offset that I can go with for a sedan on 19"? Is the offset gonna be the same for 20"? Thanks.

 

I guess it really depends on what you consider aggressive, but here is my take (I am also assuming this is a RWD 03-06 model):

on a 19x8.5" front +38 to +40 would be normal, under +35 would start to get aggressive and you would have to roll the fender or run some negative camber. It would be tough to run anything wider than a 8.5" wheel on the front, although a 9" has been done with some modifications.

on a 19x9.5" rear I think something in the +42 to +45 range would be normal. Under +38 would start to get aggressive, and would start to require some fender rolling or negative camber. You can go up to a 10" wheel on the rear, but would need to be at a higher offset (over +45 for a normal setup).

Everyone has a different definition of aggressive. To me this means running a +30 or lower in the front and a +30 or lower in the rear with some super stretched tires. Something similar to Z offsets. I am a performance junkie, so I like the nice flush look, but I want my car to be drivable. If I go with 19's, it will be an 8.5" front with a +35 to +38 offset, and a 9.5" rear with a +38 to +42 offset. I put my iForged Z wheels on my sedan and they were not close to fitting without MAJOR work. They were a 19x8.5 with a +24 offset and a 19x10 with a +29 offset (not too aggressive for the Z, but way too aggressive for the G sedan).

20's would be about the same. If you find a set of wheels, post them up and I will let you know what I think.

 

Thanks for the info jran.

 

is the car dropped? if so, how much?

jran- you could make your Z wheels fit no problem. Not that much work. Just stretched tires, some negative camber and rolled fenders.
-GP-

 

If you REALLY want to do an aggressive wheel/tire setup on a sedan, PM me and i'll tell you exactly what you need to do.

Keep in mind:
1) the car MUST be dropped around 2"
2) you MUST roll your fenders almost flat
3) You MUST stretch your tires (225 or 235 up front and 245 or 255 in the rear)
4) you MUST be willing to run atleast -2.0 degrees of camber front and rear

If you can do all of that, shoot me a PM and i'll give you the best width/offset/tire size to make it happen.
-GP-

 

Your definition of "not much work" is different than mine.

Stretched tires, and over 2 degrees of neg. camber=crappy performance and a lot of work (me=lazy).

 

how does camber = crappy performance... added negative camber increases performance. It only slightly decreases tire life, if you drive it like you're supposed to, only the toe will eat your tires up.

-2 degrees of camber is NOTHING, plenty of people run over -3 degrees on daily drivers.
-GP-

 

Negative camber does effect performance in many ways (good and bad--but it is not as simple as you make it out to be). Too much will completely screw up the way your car handles. Like anything else, there is a tradeoff.... Negative camber up to a certain point does help on high performance cars with the right tires. It will obviously help with traction in corners (tread lift and wheel tilt), but to say more camber is always a good thing is not acurate. The trade off is less perdicatable handling and less strait-line traction. Too much negative camber will (I stole this from really good article in SSC):

1. Reduce braking traction
2. Reduce acceleration traction if it's applied on the drive wheels
3. Increase the tendency to follow cracks and grooves in the pavement
4. Increase wandering caused by road crown
5. Affect tire wear; the insides of the tire tread will wear faster with more negative camber.



I don't personally like the way this car handles with over 2 degrees of negative camber (maybe 2.5 degrees on the track). I think the car gets to unpredictable, especially on a street driven car. Tire wear is not an issue for me, but it is to a lot of people (I don't mind new tires every 10-15k miles). I also don't think it is possible to drive on the street in a way that you can benefit from 3 degrees of negative camber all the time, I don't care how aggressive you drive.

I also think just because a lot of people do something that does not mean it is the best idea. Running 3 degrees of negative camber would be of no benefit on a street car. Hey, a majority of our country voted for George Bush, not once but twice... if that tells you anything about the intelligence level of the average American.

I understand where you are coming from, it is possible (I have read many of your threads, and you obviously know your stuff). I just don't think it is the best idea. I have seen nothing that indicates running super strectched tires, and tons of negative camber increases the performance of the car (it looks cool, but it does not help handling in any way). I have had this platform (Z and G) for almost 6 years and have been through quite a few setups. What I have stated is what works for me.....

 

Welcome to -2.4 degrees of rear camber... Would you say this is a "slight decrease" in tire life? I am now sitting at about -1.5.

 

Here is a data point for you that I am currently running.

I have a 2004 DG sedan, non-sport suspension. I have Volk GT-Ns with 18 X 8s in the front and 18 X 10's in the rear. The offset is 43 all around. The rears stick out from the vertical rear fender line about 5mm. I have no problems with that set up at the moment. However I am in the process of getting 2007 Z springs and shocks as the non sport suspension is just way too soft for me.


Oddly enough, the only issues I have had thus far is with the front. I got really really bad brake squeal/chatter when I added 15mm spacers up front to get an even more aggressive stance.

If you would like pics of the rear setup, let me know. I know these aren't 19s but wanted to share what I have.

 

Forgot to add, I have not changed the alignment and my tires seem to be wearing normal. I have 275/40 - 18 - BF Goodrich g-force super sports.

 

Joe, do you have any pics of your setup?

 

Yes, I do. Want pics of just the rears or front as well?

 

Both if you have them. If you have already posted pics, you can post up a link....

 

I will post some asap. Work and life has gotten in the way at the moment. I do not have any posted yet so I have no link for you.