Bagged 15+ Nismo???

MaysEffect

There is no real difference in suspension design between any other 370z/g37 than the nismo, so what you find on the internet for either car will apply to the facelifted 15's.

BUT...to answer your other questions...

Given the design of the suspension (unequal length double A-arms), the car will naturally gain negative camber as you lower the car, bags or springs, it doesn't matter. So if you want this to be corrected, you will need to also get adjustable arms. If you plan on driving at stock height around town, and only "airing out" at shows or hard parking. It may not be necessary, as you can easily adjust camber and toe within a proper range at normal ride height.

The overall ride quality will come down to the shock in this case and the size of the bag. The bag will have a softer response than a high rated coil spring . The quality and rates of shocks in some airbag kits are questionable. So its really up to you to verify its valving and adjustability with a professional shop, OR just use it as is.

This is usually not discussed when it comes to air suspension setups. But the static seat height of the bag in the spring bucket or on the shock perch can change the response depending on the optimal pressure level in relation to the ride height you tune for. Pressure in a bag essential works the same as the rating of a spring. The biggest benefits for air suspension is that you can adjust air pressure indefinitely (up to a level of course) where as you'd need to swap springs for a determined rate depending on the height. In this case you just need to adjust the perch height and tune the pressure accordingly for your intended driving height. This is a rather complex and drawn out process unless you are willing to do some hard math to determine the proper pressure level before doing endless amounts of adjustments.

It's also important you properly set your bumpstops in this case so that you don't run the risk of bottoming out if you loose air pressure or can't get the compressor to work. Air'ing the car out to the subframe may look cool, but is ultimately foolish if you can't raise the car back up for whatever reason. In this case. before you actually put the bags in the car. Put the dampers in alone and start measuring to get the right bumpstop space. I'm pretty sure, no air suspension company will have done this properly, certainly with the nismo size wheels. I'd like to be proven otherwise though. In order to save yourself a bit of cash, buy a long bumpstop and cut it down accordingly. Oh btw. THIS IS EQUALLY TIME CONSUMING AND ANNOYING AS FOOK. A professional will charge you both balls and a toe to do this. OR you can loose your fingers doing it yourself. OR...(another or) you can not do this step and play Russian roulette with your subframe.


There is no point of arguing what you should or shouldn't do. Over the years, the design and quality of air suspension systems have become increasingly reliable and well matched to the car you wish to use it on. Luckily the 370z/g37 has a pretty good suspension design and can handle tire clearance issues well without a bunch of modifications. With the normal size tires, there is not much you have to change to get the car aggressively low. If that is your goal, there isn't really a better choice than air suspension as you have an almost immediate ability to change ride height.

Camber kits and toe links, as well as ASB adjustable endlinks is even more important here. For the best ride, you will need to find a happy medium between two of the potential ride heights you plan on running at often. A low and a high setting. Set your alignment accurately to your lowest driving setting first. To be even more critical, check the alignment at your highest driving height and tune a very small amount within a reasonable degree of the low height... ANDD THENNN. check the low setting again and make sure you haven't put the alignment in a precarious binding situation. Did i already tell you your mechanics wont like you now? This is where they tell you to gtfo


Your mechanic will unquestionable hate you for making them do this. But this is the cost for having variable ride heights as well as great ride quality. A good digital height management system like the kits from accuair may be able to perfectly level ride height, but this does not account for alignment accuracy. Adding to the fact air systems already have a price premium over normal coilovers. You can see why its not a huge option outside of luxury cars.

Good luck!