Not an option to cut springs. I would not consider or do that. Have you seen Greg's video on that?

 

Ok guys, a quick update for anyone dropping on the eibach coupe springs on the vert with at least stock rims/tires.

I got my tires changed yesterday.After about 4 months of use after the drop.
The mountain run did not help with extending the tire life but that's a given

The -3 degree maxed camber setting although awesome is not sustainable in the long run. This is the rear tires look like









So here's what I learned.
1. The rear has dropped some more after 4 months

"G37 Coupe stock ride height (measured from level ground to highest point of fender):
Front: 28.15" sport, 28.03" non sport Rear: 27.76" sport, 27.64" non sport"



front
right hand side front height 26.5 inches
left hand side front height 26.125 inches

rear
right hand side rear height 25.5 inches
left hand side rear height 25.9 inches



2. Going to a lower profile tire with the eibachs and the 19s ( 255/30/19) reduces the overall wheel diameter by an inch.
So, to keep everything (Distance to empty calculation) mostly in sync I'm go to 275/35/19 in the rear.

I may try some Sedan X springs to see if it handles the extra weight a bit better and gives a milder drop in the rear.

I'll see if I get get any useful info from H&R on how effectively low the drop will be with the vert springs they have on a sport vert model. It would be nice to see some pics.


3. The only way I can use spacers is to go back to the stock springs in the rear, so the wheels will clear the fender.

decisions, decisions.

 

So I'm tending towards putting the stock rear springs back up for the following reasons.


1. I'd really like to make use of the spacers with the stock rims.
2. I'd like to run a wider tire. 275/35/19 which is just under the stock overall diameter by .2 of an inch.


H&R supposedly will have the vert springs released to the US in a month, but the non adjustable camber will prevent me from goals 1 and 2 above.

There is no guarantee that I'll still be close to spec with the H&R springs, just going from what the drop looks like on a G37S coupe. Plus they always state the drop will be lower on the S models.

Another reason to go back to the stock rear springs is that I will surely rub on the inside of the wheel well with 275/35/19. I theorize this as I'm currently trying a smaller diameter tire 265/30 (at around 25.5 inches overall diameter) and this is having some rub on the inner section of the wheel well due to the -3 deg of camber.


I did think of maybe trying a sedan spring since it's designed to support more weight than the coupe and maybe would not drop the vert so low to have camber out of spec. But I just get a sneaky feeling I'll have the same issue since the eibachs coupe springs were not designed for the vert weight.

So, I'm thinking the safest and cheapest route right now (for labor cost and alignment costs) , since I am getting tires next week (275/35/19) is to get the rear stock springs back on, go through with the spacer install and just wait it out for the following to happen at unknown times in the future


1. H& R to get their R&D done. (they have advertised sale since around may 2010? but still no product)
2. See how the H&Rs look and if it would not put the camber out of spec.
3. See if SPC /SPL or anyone else comes out with vert camber kits
4. See if coil overs ever get developed.

Front springs will be left alone with the eibach coupe springs until the H&Rs come out at least.

 

Nice write up and pictures... I was thinking about eibachs but seeing all the trouble, I think I'll wait.

 

Hey, no prob. Glad it had helped someone make a decision on pulling the trigger or waiting. All it means for me though is just constant side to side directional tire rotation to reduce the wear.

 

ouch 3degrees for the rears... you're going to go thru some tires... fast....

for me if you want to control the drop you gotta go with coilovers. lowering springs just won't do it. cause from what I've seen they ALL sag in the rear... like all of them. Teins, Eibachs, H&Rs unfortunatel the coupe-vert weight distributions is different... I don't think they figured out how to offset the extra weight it has

 

hey I got a re-alignment yesterday. mine is rear left -2.4 & rear right -2.5

 

^ was your toe dead on? factory settings are around -.82 to -1.85???

 

You might be right. I just gave them (H&R) a call today to see what's up. They are still in "development" with no ETA, and no plans for coilovers to be developed.

 

So I just got my alignment done by my dealer. I could not get near 2.4 /2.5 camber on the rear. But after 10mths this is the new config. toe is more near zero now although by a little bit.