This kit includes:
- 4 air cups
- 12 meters airline
- T-splitter
2 year warranty on the air cups.
We strongly recommend to use the following valve to operate the air cups: 3-way valve
Click here for an online view of the manual.
Max total car weight: 2000 kg / 4400 lbs
(Limited for 40- 45mm cups: 1750 kg / 3850 lbs)
How to install Air Cups?
Step 1. Checking coilover clearance and springs.
Make sure you have enough clearance around the coilovers, the air cups are 120mm in diameter, the fitting is 17mm. (110mm air cups available on request)
[[img@id=;181548;@resolution=;medium;@class=;centered;]]
The air cups can only be installed on linear springs, it will not fit on shaped springs as shown in the figure. In some situations shaped springs can be changed to linear springs.
[[img@id=;181549;@resolution=;medium;@class=;centered;]]
Step 2. Measuring
Measure the thickest part of the shaft, we strongly recommend to measure with a caliper.
Air cups are available for coilover shaft diameters: 12,5mm, 14mm, 15mm, 16mm, 18mm, 20mm, 22mm, 40mm, 44mm and 45mm.
- Maximum outer diameter: 99mm.
- Minimum inner diameter: 61mm. (57mm on request)
- Maximum outer diameter för 110mm air cups: 89mm.
[[img@id=;181552;@resolution=;medium;@class=;centered;]]
Steg 3. Installation
RIDE HEIGHT
In most cases the air cup will take between 20 and 30mm of height. The air cup itself is 20mm thick and with most coilovers the top hat comes on top of the air cup, this will take around 10mm. If there is enough thread left on the coilovers to lower the springs, it wont be a problem. If not, you will need to install shorter springs.
[[img@id=;181554;@resolution=;medium;@class=;centered;]]
Spring adjustment
The lift from the air cups requires droop / rebound from the coilovers. If you dont have enough droop, the air cups cant lift the full 50mm. The damper strut simply will top out before achieving the full lift. If youre using the standard spring rates that came with your coilovers, it should be fine. If youre using higher spring rates we recommend to use helper springs to get the full lift.
[[img@id=;181553;@resolution=;medium;@class=;centered;]]
What is rebound / droop?
Droop, also called rebound, is basically the amount of travel you have between ride height and full extension. Too much preload will decrease droop, we recommend to set a minimal preload. If youre using extreme high spring rates, higher than the original rates that came with your coilovers, the weight of the car wont compress the springs enough to create enough droop. This problem can be solved by installing helper springs, these will create enough droop for the air cups to lift.
