Max negative camber?

[f80er]

How much negative camber can you get without adjustable toe links and lowered on MS springs? I have -1.9 and rubbing with 295 30 20 MP4S and a 20 x 11.5 et37 wheel.

I am wondering if I can even get away with that setup relying solely on camber? And if so do I need toe links to achieve it?

[x.shell]

Originally Posted by f80er

How much negative camber can you get without adjustable toe links and lowered on MS springs? I have -1.9 and rubbing with 295 30 20 MP4S and a 20 x 11.5 et37 wheel.

I am wondering if I can even get away with that setup relying solely on camber? And if so do I need toe links to achieve it?

Max negative camber in the rear will be about -2.4 with the MS springs. Toe will be about zero with that camber. If you want ability to adjust toe-in with max camber, you will need adjustable toe arms.

That being said, you won't be able get a 20x11.5 +37 and 295/30/20 PS4S to work without rubbing; even with max camber.

Dubsesd uses a 305/25/20 PS4S on a 20x11.5 +37 rear wheel. He claims no issues. So you could do that or go super stretch stancebro with a 285/30/20.

[f80er]

Originally Posted by x.shell

Max negative camber in the rear will be about -2.4 with the MS springs. Toe will be about zero with that camber. If you want ability to adjust toe-in with max camber, you will need adjustable toe arms.

That being said, you won't be able get a 20x11.5 +37 and 295/30/20 PS4S to work without rubbing; even with max camber.

Dubsesd uses a 305/25/20 PS4S on a 20x11.5 +37 rear wheel. He claims no issues. So you could do that or go super stretch stancebro with a 285/30/20.

The wheel in question was originally his(dubsesd). And the guy I got them from claimed no rubbing with -2.5 and 295 PS4S which is what I bought them with on. I got 295/ thinking I would be good but Looking back should have gone with a shorter 295 or the 305s.

If you say I won't clear even with max camber then I'll stop trying.

[x.shell]

Originally Posted by f80er

The wheel in question was originally his(dubsesd). And the guy I got them from claimed no rubbing with -2.5 and 295 PS4S which is what I bought them with on. I got 295/ thinking I would be good but Looking back should have gone with a shorter 295 or the 305s.

If you say I won't clear even with max camber then I'll stop trying.

I just saw your other thread in the "Wheels and Tire" forum regarding the same topic. Looks like you're only rubbing on the fender liner correct? If that's the case, you can either cut the liner or heat it up and "reshape" it. Be careful on either route as the fuel system is tucked behind the passenger liner.

A lot of people say they have "no rubbing", but I found that they mean different things. Some people mean they don't rub while static. Some mean they don't rub the fender but rub the liner on full compression. So I don't really believe anyone when they say they have "no issues", especially when I know the specs I have rub.

My rear set up is 20x11 +36 with 295/30/20 PS4S and RE71R, -2.4 degrees of camber, and zero toe. I don't get audible rubbing noises in the cabin but I do rub the fender liner on full compression. I know this because of the marks left on the tires. A 20x11.5 +37 is very similar to my set up; the tire will stay in the same offset but the bead will be stretched another 1/4" on each side due to the wider rim.

I hope this gives some insight into my experience and how I determine whether things will fit. It all comes down to offset, width, tire, camber, toe.

[f80er]

Seems to be rubbing on the liner but also it seemed to rub on the edge of the arch as well because the paint is gone there. Whether the paint shop missed that or it was rubbed off I do not know. I put some painters tape on the spot in the liner where it was rubbing to see exactly what its doing and will snap some pics when I take the wheels off later today. 'No rubbing' to me means no rubbing but you are right people interpret things differently.

Do you have adjustable toe links? I was going to buy them just to make all of this easier and for the cost of $250 its seems like a no brainer. Going from -1.7 to -1.9 made it better so I would think adding more camber could possibly eliminate it all together (at least the noise).

[chrisx_xzb]

might need about -3 to clear the rear.
running 305 30 19 on 11.5 et32 here

[f80er]

Originally Posted by chrisx_xzb

might need about -3 to clear the rear.
running 305 30 19 on 11.5 et32 here

Haha I thought mine was aggressive. You running that much? And if so clear and no rub?

[chrisx_xzb]

Originally Posted by f80er

Haha I thought mine was aggressive. You running that much? And if so clear and no rub?

Positive sir

[f80er]

Originally Posted by chrisx_xzb

Positive sir

I assume you have adjustable toe arm links as well? Otherwise not sure how you would even get that much negative camber.

Oh I also read that that an M4 can clear more than an M3 can due to the difference in body.

[chrisx_xzb]

Originally Posted by f80er

I assume you have adjustable toe arm links as well? Otherwise not sure how you would even get that much negative camber.

Yea I am running toe arm and camber arm from t-demand
-3 on F80 is gonna look THICCCC

[f80er]

I can't get that with stock camber adjustment as far as I know so I am shooting for -2.2-2.5 w/fall-line toe links. Will see what I end up with.

[x.shell]

Originally Posted by f80er

I can't get that with stock camber adjustment as far as I know so I am shooting for -2.2-2.5 w/fall-line toe links. Will see what I end up with.

I just got my car aligned again today. I asked about the rear camber adjustment range and they confirmed what I said before -- max camber is about -2.4ish with my drop and stock toe arms at zero. The camber range is actually a lot more but is limited by the toe adjustment. If you get the Fall Line toe arms, they estimated that you can probably get up to -2.8 degrees of camber on the rear.

I ended up getting -2.3 degrees of camber on the rear with toe-in 1/16".

[f80er]

Originally Posted by x.shell

I just got my car aligned again today. I asked about the rear camber adjustment range and they confirmed what I said before -- max camber is about -2.4ish with my drop and stock toe arms at zero. The camber range is actually a lot more but is limited by the toe adjustment. If you get the Fall Line toe arms, they estimated that you can probably get up to -2.8 degrees of camber on the rear.

I ended up getting -2.3 degrees of camber on the rear with toe-in 1/16".

Thanks man that helps a lot.

I did get the toe arms but haven't installed them because my car was back at the body shop. I should be getting it back today and hopefully back for alignment sometime next week.

FWIW there is a barely used set of toe arms for sale in the classifieds for 210 shipped. I paid 252 from IND.