DIY: Radium Single Catch Can Installation

[kitkat]

Hi all,

The following is a DIY with parts and instructions for a single catch can for the V6 Emira using Radium parts.
A previous thread by @silent cilantro outlined a dual catch can installation that was a little overkill because the breather didn't need its own catch can.
This is a compilation of the information, parts, links, and instructions needed to perform this. Thanks you @silent cilantro and @GRP!

Installation Diagram

Parts Needed
1 x Radium Catch Can w/ bracket.
2 ft x 3/8" PCV/Fuel Hose
1 x Radium 10AN ORB Swivel Banjo to 3/8" SAE Male
1 x Radium 10AN ORB to 5/16" SAE Male
1 x Radium Spring Clamp 3/8" Hose
1 x Radium Spring Clamp 5/16" Hose
3x M6 x 15mm button head socket cap screws
3x M6 Nylon Locking Nut

I told Greg about these and he's put together a package with all of this for us as a single purchase.
Greg if I'm off about any of the parts you've included in your kit let me know so I can adjust this post.

GRP Catch Can Kit for 2017+ Lotus Evora 400/GT/410/430, Exige V6 & V6 Emira

An age old issue with forced induction cars and modern emissions requirements is having vent lines from the valve covers (pcv) routed to the intake of the engine which sends vapor, moisture and oil residue into the supercharger, intake tract and combustion chamber of the the engine. This causes...

www.gregsraceparts.com

Tools Needed

• 8mm, 10mm & Ratcheting Socket Wrench
• Adjustable Wrench for 10AN ORB Fittings
• Various hex bits & driver
• Drill with 1/4" drill bit
• Pliers for spring clamps

Instructions

1. Remove 12V Battery Cover
2. Remove 12V Battery Negative and Positive Terminal Connectors with 10mm socket.
3. Unbolt and remove 8mm battery tie down.
4. Remove the 12V Battery
5. Remove Upper and lower engine cover plastics.
6. Use the radium bracket as a template to mark drill holes to the battery box. Try to position this bracket further away from the heat shield and as high up as you can.
   1. Note, your installation will be lower than mine as I have made an upwards extension to raise mine, this isn't necessary.
7. Drill holes with 1/4" drill bit. Do not do this with the battery in place.
8. Attach bracket to the battery box using the M6 hardware, the Nyloc nuts can go in the inside of the battery box.
9. Attach radium canister to the bracket with the 4 screws and remember to use loctite blue.
10. Attach the Radium 10AN ORB swivel to 3/8" SAE to the top of the canister making sure to lightly oil the o-ring.
11. Attach the Radium 10AN straight to 5/16" SAE to the front of the canister making sure to lightly oil the o-ring.
12. Detach the OEM 5/16" hose from the supercharger inlet retaining the hose spring clamp for later use.
    1. See attached photo with arrow pointing to which hose this is on the supercharger inlet in the additional photos section.
13. Pull the OEM 5/16" hose out in front of the supercharger towards the trunk, it is tucked away under the supercharger.
14. Eyeball the OEM 5/16" hose length to the front canister 5/16" SAE barb and trim the hose. Be sure to leave a little bit of slack for engine movement under load and don't kink any hoses.
15. Attach and trim a new 3/8" hose from the supercharger inlet to the top swivel 3/8" barb. Be sure to leave a little bit of slack for engine movement under load and don't kink any hoses.
16. Attach the hoses and with their respective spring clamps.
17. Replace the 12V battery.
18. You're all done! Remember to check the level of the canister with the dipstick every few thousand miles. You will likely fill the 7oz canister every 5,000 miles! YMMV.

Additional Photos

 

[kitkat]

Optionally: I am releasing a 3D printable model that raises the catch can higher and allows you to use the same 3 holes you drilled for the Radium catch can bracket. It also allows you to install a single screw to then quickly release the entire catch can assembly from the battery box wall in order to get to any maintenance items down below such as the transmission oil fill hole.

Hardware Needed
- 3 x M6 x 15mm button head socket cap screws (for the base to battery box interface)
- 3 x M6 x 10mm button head socket cap screws (for the radium to extension interface)
- 1 x M6 x 20mm button head socket cap screw (to lock the two parts together)
- 7x M6 Nylon Locking Nut

3D Printing Requirements
- PET-CF or better heat resistance
- Failure to provide a sufficiently temperature resistant can lead to failure and possibly a fire. No PLA, PETG, ABS, ASA etc.
- 6 walls with 100% infill just make it solid
- Make sure you have supports

3D Models & 3MF Files
Download STEP and 3MF Files

 

[Sandalwood]

Great stuff! I am less motivated to install one than I am with my carbon-loving direct-injected cars. However, since I intend to own my car for many years, I would appreciate the other longevity benefits of preventing oil contamination into the intake and potentially reducing knock from oil-induced octane reduction.

How do you access the drain on the Radium canister? The one on my JCW MINI drains from the bottom, which could be an access nightmare here.

 

[mr.suntorytime]

Great stuff! I am less motivated to install one than I am with my carbon-loving direct-injected cars. However, since I intend to own my car for many years, I would appreciate the other longevity benefits of preventing oil contamination into the intake and potentially reducing knock from oil-induced octane reduction.

How do you access the drain on the Radium canister? The one on my JCW MINI drains from the bottom, which could be an access nightmare here.

the bottom unscrews from the unit and you can pour it out.

 

[kitkat]

Great stuff! I am less motivated to install one than I am with my carbon-loving direct-injected cars. However, since I intend to own my car for many years, I would appreciate the other longevity benefits of preventing oil contamination into the intake and potentially reducing knock from oil-induced octane reduction.

How do you access the drain on the Radium canister? The one on my JCW MINI drains from the bottom, which could be an access nightmare here.

i just unscrew mine and am just careful not to spill it bottom part of the canister unscrews:

They make a petcock valve attachment but I'm not sure where you'd exit out to.

https://www.radiumauto.com/Catch-Can-Petcock-Drain-Kit-P367.aspx

 

[GRP]

i just unscrew mine and am just careful not to spill it bottom part of the canister unscrews:
View attachment 64537

They make a petcock valve attachment but I'm not sure where you'd exit out to.

https://www.radiumauto.com/Catch-Can-Petcock-Drain-Kit-P367.aspx

View attachment 64539

Our kits we are putting together include the drain petcock kits with them to keep things as easy as possible.
The drain hose can be routed down to the side of the belly pan so you can slide a drain catch under it, reach down and open the valve.