Ok So I have an 08 g37s. I have it lowered on Megan Street LP coilovers, SPC camber front and rear. Rear toe bolt as well. The car is on 20's Stance SC-5ive front: 20/30/245 rear: 20/35/275.

The Problem: I was told prior to buying the SPC camber that this would allow enough positive and negative camber to align my car to factory spec. This is not the case for the rear. Even with the coilovers adjusted as high as possible in the rear I'm still running a -2.3 camber in the rear. Thats with toe set to 0. If I set the toe out some I can lower that to about -1.9 but I'd rather not.

The only thing I know to do would be to change from a 20/10.5 rim to a 19/9.5 . I really like the look of the 20's but not at the cost of new tires all the time and losing traction.

ANY help would be amazing. This is my first post and I have been on here for awhile. I have read my other post about suspension prior to purchasing what I have. This is why I'm at a lost.

Thank you in advance.

 

Aren't those tires suppose to be 245/35 and 275/30?

 

i have the same issue, with rear camber kit (SPL) my camber needs to be at -2.1 for toe to be withing spec. if i reduce camber toe goes out of spec.

i think the only solution is to get toe bolts and install them by enlarging the holes which I would like to avoid

Would adding SPL traction arms give some extra adjustment to the toe?

 

Presto: I have the toe bolt. So that does not fix the issue
Kuro: you are correct it is 245/35 and 275/30 (typo)

 

I have the same problem. Except i am lowered on eibachs, and i can't get my camber less than -1.7.... It wont kill my tires as fast as yours. -2.5 was what i had without the rear toe bolts installed, but after installing toe bolts i got it to -1.7.

I thought everything would be okay as well like you did. I thought the camber would be adjusted a lot more with the toe made straight. But apparently, these numbers that you and i are getting are right

 

Something is definitely wrong here, unless the coupe has some different setup than the sedan which I'm fairly certain it doesn't. I too have Megan coils and am dropped to zero gap running 295/30/20s in back on 10" rims and my camber is at -1.1 and my toe has minimal toe-in (well w/in spec, but I don't have my spec sheet handy). I have the SPL kit F&R w/ elongated toe slot.

It sounds like an alignment tech isn't familiar w/ working w/ these aftermarket camber adjusters or possibly the toe slot wasn't elongated, or not elongated properly. Unless you're completely slammed these kits should get your camber & toe in spec, and surely much better than -2.

 

It's possible there's damage to the OEM alignment equipment. Was your alignment fine before embarking on your lowering journey?

 

A couple more things to consider, quite a few alignment places don't have experience w/ lowered vehicles and aftermarket camber adjusters, they just basically go right to the OEM camber concentric adjustment bolts. It takes time to shorten/lengthen the SPC arms, recheck and readjust the length and back & forth all while keeping the toe in check. Not really a job for sears alignment type places but rather shops that specialize in such. I'm not saying you took it to that type of place, just food for thought. Also regarding the front SPC arms, you must have the SPC logo on the brass ball joint collar facing outward from the vehicle, if it's going inward than you won't be able to get camber in range.

 

Thanks for the replies.
Prior to lowering the alignment was dead on with no issues.
The front is off just slightly not enough that you can really even tell wear. The rear is where the main issue is. I have taken my car to literally 4 different shops. 2 done by computer and 2 done by hand. No bueno. I was told the only way to fix the camber any better in the rear would be to raise it some. Well I have the Megan coilovers adjusted all the way up. I don't know what else to do or what I can do to help someone on here get an idea of whats going on and help me? Any suggestions?

 

Has the toe bolt adjusting slot been properly elongated? There's plenty of room for camber adjustment w/ those arms if the SPC toe bolt has the full range of travel. Like I metnioned I'm also on Megan coils and at zero gap in the back (about 1/4" below max height, so probably a bit lower than you) and have -1.1 camber and toe is right on. I've got 15k miles on my rear tires w/ perfect wear. Maybe shoot a couple pics of the arms & bolts if you can. It took my alignment guy about 2.5 hrs to get the F&R just right and said it was quite a chore. It sounds like you've gotten some techs that don't want to do the work. Unfortunately over the internet it's tough to diagnose

 

Thank you and I will get some pics asap and post them here. I know the guys who looked at my car didnt spend that long maybe an hour if even that. i went through one set of rear tires and my front were just fine. =\
But thanks for the help and insight.

 

I have the same problem. I'm dropped on s-techs with the elongated toe bolt and -2.3 is the best I got with zero toe

 

Did you use the SPC arms also? If not there's no way you'll get decent camber on S Techs w/ just the toe kit since they drop pretty deep for springs.

 

yes I have the arms as well. rode for about 3k with this setup. No signs of inner wear so -2.3 camber aint to bad.

 

So while looking at my car and the camber I notice that who installed my rear camber and toe didn't elongate the toe bolt which is why I couldn't get my camber better. Also noticed that the front camber washers were in the position for caster Not camber.. so correcting that. Then off to tell the alignment guys how to correctly align my car lol..

Question: If I dropped down to a 19x10.5 rear would that allow for better alignment. Currently on 20x10.5 in the rear . Same for front. Go to a 19x9.5 instead of a 20x9.5?