The manifolds are made of cast steel 1.4848 and differ significantly from cast-iron D5S. The main differences between the two materials lie in the durability.
The design of the entire manifold from the cylinder head to the turbocharger was to generate the maximum output of the turbine, while ensuring the maximum throughput from the design, this was through the arrangement of the tubes and the guide, the collector and the division,and the inner diameter!
The manifolds were designed in CFD to produce in the collector a "swirl" to draw the gases as they augment and then be accelerated. In this way, a rinsing efficiency is generated, which provides a maximum output of the turbine.
The manifolds were designed for maximum engine performance.
38mm internal diameter from the cylinder head flange to the merge collector then on to 41mm to the turbo, these are currently the biggest and best performing 3 in 1 cast manifold on the market!
For comparison, the stock RS4 oem have an inside diameter of 28mm!
LOBA manifolds were designed for maximum engine performance.
The advantage is not just the chosen material, but also in its construction.
Maximum use temperature (temperature in air):
1.4848: 1.100 ° C
D5S: about 950 ° C
Tensile strength:
1.4848 min. 450N/mm ²
D5S: 370N/mm ²
Elongation:
1.4848: A10 (%) = 8
D5S: A5 (%) = 10
Hardness (HB):
1.4848: 160-220
D5S: 130-170
Weight 4.3kg and 4.9kg
The mean roughness (Ra) in the interior meets the quality requirements of the VAG Group.
Manifold inlet: 38mm
Manifold outlet: 41mm (44mm can be opened up to an additional charge)
Positioning of the turbocharger: as oem
manifolds were designed and are manufactured in Germany.
