M177 E63S Air Oil Separators

63 Motorsports Inc. M177 air/oil separator hybrid catch cans’ final production are now available. The M177 is engineered with stock air/oil separator that have the potential to create positive feedback loops (VERY BAD!). When the volume of oil builds up within the stock air oil separator reservoirs, vacuum can increase. The crankcase essentially becomes a closed environment with no means to compensate and readjust to correct the vacuum/overpressure conditions! This problem must be fixed and addressed!

As soon as the stock separators begin to struggle draining its’ reservoirs, vacuum increases causing higher siphoning of oil vapors! When the vapor siphoning rate becomes higher than the oil drain rate (at the separators), the oil volume increase, therefore blockage occurs!

Pictured here are hose diameters of our M177 hoses. The stock plastic elbow decreases in size at the bend and acts as a bottle neck where plastic is crimped. This fitting attaches to vent each cylinder head.

VENT FITTING AT CYLINDER HEADS

Below is a view of the black plastic fitting attached to the separator side, this is the other end of the hose above. This attaches right at the separator and essentially has the same diameter as our greater hose with the white inner PTFE liner. PTFE does NOT age like rubber hoses!

Diameters compared, 63 MOTORSPORTS PTFE LINE(S) vs STOCK VENT LINES

Billet Aluminum M177 Catch Can Hybrids

Our R&D applied forms of the combined gas laws PV = nRT to use hose diameter to exponentially increase the ability to trap oil preventing blockage at the separators.

The lesser inner diameter PTFE lined hose above is installed from the cylinder head vent to the lower catch can port, maintaining laminar flow throughout its travel.

The greater inner diameter PTFE lined hose above installs from the top catch can port back to the separators, effectively maintaining the final flow characteristics of the stock vent pipe.

The measurement of the inner diameters are more effective than making comparisons based on outer diameters. The outer diameter of any hose have zero effect on flow dynamics.

Emptying the Reservoirs:

Be informed that the M177 must be attended to, or the RMS failure remains a very real risk even after repair and replacement! As much as we would like to encourage everyone to purchase an Amazon universal catch can kit please understand that there is more science to the development of these systems than merely routing gaseous blow-by. During development and testing, usage of the M156 and M157 catch can versions (both having different internal baffling designs) proved that neither was as effective at the job as the final production M177 configuration!

In short, M156, M157, and M177 catch can assemblies are NOT interchangeable. The M177 is a sensitive machine with several sensors that MUST be accounted for. Our M177 catch cans MUST attend to the ECU to make sure there were no error codes, on top of, protecting the Rear Main Seal and Air Oil Separators from failure! Optimizing the amount of caught blow-by was 100% the priority!

Full reservoir in 1000 miles during the initial development kit E63S with newly replaced Air Oil Separators. Courtesy of Benztec in California.



Third full on merely 200 kilometers on a brand new 2023 E63S development car that just broke the break-in period. Again on the initial development kit. 63 Motorsports Inc development car.

Every day we developed was a day of FULL commitment. Just so we’re clear, we are not gatekeepers within the AMG community. Here on Amazon, are catch cans for a mere 3% fraction the price of ours - LINK.

Ask questions such as

‘Why are their costs so low?’,

‘How much testing was done?’,

‘What are the expected lifespan of the product?’

‘Where was the product made?’ and

‘What support do they provide?’.

63 Motorsports Inc.’s time, testing, and design strategies developed the M177 catch can. A complete lifetime offer and guarantee for the life of this product applies (barring physical damage and the will/act of God). Our pride is high to have the M177 catch can installed in your AMG!

Main Housing: 63 Motorsports Inc. M177 Catch Can

M177 PCV

Previous
Previous

M156 Silent Killer, it’s Valvetrain: Get Set for Success

Next
Next

M156 v. M157 Catch Can Development