FAQ - (please read!)

Most always 4. More stable when working on the car, less PSI to lift. Easy to install SafetyStands or Cowbells.

3 is optimal for green-flag stops when the car is light and saving 5lbs really matters

Anything dry. Many use nitrogen, but c02 works, etc. Ensure it is dry or AirJax longevity is radically compromised. 'Did I mention it needs to be dry? Because it does. If the vehicle is light and a compressor gets the job done, ensure you've got an inline dryer. Because....dry. 

Frame and supported incredibly well. Look at out gallery for ideas. 

Body-mount is usually not good. If you've got a drawing/sketch/mock-up and you'd like us to take a look, send it in. 

AN lines made from any reputable maker is fine. We've heard of racers using plastic lines but that sounds a bit sketch. Check out their specs on pressure and like anything in a race car, resistance to abrasion, vibration and heat are key factors. "Y" fittings perform better than "T". 

Since there is a spring (granted, it is a stainless high-quality unit..) inside we recommend the minimum time to get the work done. If the vehicle needs to be 'up' for a while, put it on Cowbells and retract the legs. 

If they are operating normally (retract quick, deploy quick, etc) then keep using them. Some pro teams send units in every year during winter to ensure they are ready for the next season. The biggest enemy is dirt ingested during leg retraction so try to keep the leg area free and clear. If you're operating them in dirt, put down some vinyl tiles, plywood, etc. 

Not really. You'll see slightly quicker wear but you'll likely still go years before the first rebuild assuming you keep dirt out. Length of air hoses front to rear will change fill rates end to end as well.  Use "Y" fittings and not "T" fittings. 

We don't like the unit going over 150*F.  You'll see in the gallery pictures that some folks wrap units in gold foil, others ensure they get adequate airflow through ducting. If you're concerned about temps, perhaps use some of the stick-on temps labels that discolor so you can determine how hot they are getting. 

Feed it clean and dry air. Don't 'slam' the valve open and deploy the units at maximum speed into the ground (we call this "testing the mounting system", ha!) and ensure the area around the foot has no loose debris (rocks, trash, etc) that might get sucked in when the legs are retracted.