The Chase Bays Oil Catch Can is the culmination of hundreds of hours of testing on dozens of builds, street and track. This is one of the most important modifications you can do to your engine! It is essential for preventing harmful oil and carbon buildup in the intake system, maintaining octane levels, increasing performance with cleaner inlet air, and properly venting the crankcase pressures in the most aesthetically pleasing, modular, and easiest to install solution on the market.
We started our initial design using CFD (Computational Fluid Dynamics) analysis to simulate input flow under operating conditions ranging from extreme vacuum to extreme boost, optimizing our design to maximize separation of contaminants and maintain flow through. Physical prototypes were then tested over thousands of miles in competitive road race and drift builds as well as on the street to validate our design in the real world, how our customers will use them.
Our catch can is machined from 6061 aluminum, bead blasted, then Hard UV-Proof Anodized Signature Chase Bays Black. The top and bottom are threaded together and sealed with an O-Ring for a leak proof connection that is safe for the most extreme pressurized applications. All hardware is stainless steel. The 10AN ORB inlet and outlet are both on the top for a seamless look and easy routing. Seven different bracket types are offered to make mounting easy.
Air Oil Separation
The inlet is equipped with a stainless steel mesh filter for the best possible air, oil, and water condensation separation before it even enters the tank. Once the oil has passed through the filter, we have created the highest level of Oil Separation Baffling from the Outlet back to engine while maintaining complete flow. There is no return restriction.
Oil Level and Drain
An integrated mini Chase Bays Reservoir Cap Style Dip Stick with a notch shows when the oil is ready to be drained. The Dip Stick is knurled for easier gripping. When the oil is ready to be drained, there is a -4AN ORB port on the bottom of the Can or the lower housing can be removed or we highly highly recommend our Oil Catch Can Drain Kit with petcock.
Fittings
Inlet and Outlet Fittings are offered in -10AN and 5/8 Push-On Hose Barb. Each of those are offered in Straight, 90º, and 90º L Fitting styles. The L fitting is great for joining two valve cover outlets into one easily. Two outlets on an Inline-Four Valve Cover (Honda, SR20), Intake and Exhaust Side Valve Covers on Inline-Six (JZ/RB), Two Valve Covers on a V6/V8...this L Fitting will eliminate the need for Dual Catch Can setups for most setups under 450-500hp or special PCV designs, by turning a single catch can into a three- or four-port design. See installed photo for a better understanding!
In order to eliminate a huge number of options on our drop down menu above, the 10AN to Barb Push-On Hose Adapters are sold separately. If you want to run normal hose, just select "No Fittings Needed" and purchase two of the following items:
Engine Outlet Size Guide (OEM Based)
BMW M50 / M52 / S50 / S52 - 1" inch Valve Cover
BMW S54 - 5/8 Valve Cover
Honda B / H / D Series - 3/8 Valve Cover & 3/8 on Block
Honda K Series - 5/8 Valve Cover & 1/2 on Water Pump Housing
Honda S2000 F Series - 5/8 Valve Cover Forward Outlet, 3/8 Valve Cover Rearward Outlet
Nissan S13 SR20DET - 5/8 Valve Cover Exhaust Side (delete one side of the tee that "drains back" to block, 1/2 Valve Cover Intake Side
Nissan S14/S15 SR20DET - 5/8 Valve Cover Exhaust Side, 1/2 Valve Cover Intake Side
Nissan RB20DET / RB25DET - 5/8 Valve Cover Intake and Exhaust Side
Nissan RB226DETT - 5/8 Valve Cover Intake and Exhaust Side x2 (each side has a 2-way L Fitting, most 26 builders would put one catch can per side)
Nissan KA24 - 5/8 Valve Cover Intake Side
Nissan VQ35 - (two) 1/2 Valve Cover Outlets Bank 1, (one) 1/2 Valve Cover Outlet Bank 2 (Oil Filler Cap side)
Toyota 1JZ-GTE non-VVTi - 5/8 Valve Cover Intake Side, 1/2 Valve Cover Exhaust Side
Toyota 1JZ-GTE VVTi - 1/2 Valve Cover Intake Side, 1/2 Valve Cover Exhaust Side
Toyota 2JZ-GTE non-VVTi, VVTi, and GE - 5/8 Valve Cover Intake Side, 1/2 Valve Cover Exhaust Side
Mounting
The back side of the catch can has two M8x1.25 threaded holes with included Stainless Allen Head Hardware for easy mounting. It is available with five different bracket design OPTIONS making installation on any chassis a breeze, see photos below for each bracket type. One included per purchase.
Dimensions and Capacity
The Catch Can Dimensions are 5"x3" without fittings and 6.5"x3" with. The oil capacity before its air/oil separation capabilities are void is 8 fluid ounces (0.25 quart).
Future Expansion
We're always improving and expanding our lineup! We're proud of launching the best catch can on the market, but we're not stopping there. Stay tuned as we launch:
- Full line of engine-specific Catch Can Kits, engine, valve cover adapters and all!
- Parallel Dual Catch Can Bracket: Our L-fitting is an elegant solution but we understand for extreme applications some customers will want a dual-can setup, and we’re working on it!
- Larger “competition” lower housing with 1-quart capacity for SCCA, NASA, FD, etc.
- Vent filter: We highly recommend recirculated designs and run them exclusively on our builds, but we are working on solutions for unique situations where a vented setup is required. We have found this is needed in HIGH boost and HIGH CC situations like Turbo V8's, 800hp 3.4L 2JZ, etc. We still believe in a pull system to assist in relieving crankcase pressure so we're testing an exhaust evac kit (written Nov 25, 2024)