Monthly archives: January, 2021

Mini Cooper S R53 JCW – New Downstream O2 Sensor

Replaced the O2 sensor with a fresh new one from Vemo. I totally forgot that the Mini Cooper has 2x O2 sensors 🙂 Don’t forget that O2 sensors have a replacement interval which is usually somewhere between 160.000 – 250.000 km.

Update per 01-01-2021: I replaced the Vemo with a new O2 sensor from Magneti Marelli. The Vemo already started giving issues after a short while. It will be the last time that I will be using Vemo.

Mini Cooper S R53 JCW New Lambda Sensor


Mini Cooper S R53 JCW – Injector Service

Cleaned & replaced the rubbers on the blue 380cc Siemens Deka injectors. The rubbers tend to get hard and brittle due to heat, so very important to replace these in time.

I will probably replace the injectors somewhere in the near future for peace of mind.

Mini Cooper S R53 JCW Injector service


Mini Cooper S R53 JCW – Servicing the Eaton M45 supercharger

When I bought the Mini, it had reached the 160.000km or 100.000 miles mark. This is a milestone in the Mini Cooper S service history, because it means that you need to service the Eaton M45 supercharger (new fresh supercharger oil etc etc).

I saw the episode from Wheeler Dealers and felt confident. It was a lot of work, but fortunately it wasn’t complex. As this isn’t my daily driver, I meant I could take the time.

Mini Cooper S R53 JCW Supercharger Service

Mini Cooper S R53 JCW Supercharger Service

Mini Cooper S R53 JCW Supercharger Service

Mini Cooper S R53 JCW Supercharger Service

Eaton M45 supercharger on the work bench

Mini Cooper S R53 JCW Supercharger Service

Mini Cooper S R53 JCW Supercharger Service

The new Compressor Bypass Valve (CBV) vs the old

Mini Cooper S R53 JCW Supercharger Service

Dirty throttle body!

Mini Cooper S R53 JCW Supercharger Service

Mini Cooper S R53 JCW Supercharger Service

Finally cracked the supercharger open to allow for visual inspection of the gears (they looked good!)

Mini Cooper S R53 JCW Eaton M45 service

Mini Cooper S R53 JCW Eaton M45 service

Mini Cooper S R53 JCW Eaton M45 service

Mini Cooper S R53 JCW Eaton M45 service

I also replaced the supercharger coupler with a new oil filled nylon coupler (in red).

Mini Cooper S R53 JCW Oil Filled Nylon Supercharger Coupler


Mini Cooper S R53 JCW – Sitting in the driveway

Snapped a picture of the Mini sitting in the driveway. I love this car 🙂

Mini Cooper S R53 JCW Sitting in the driveway 10-06-2020


Mini Cooper S R53 JCW – Airbox Intake Modification

I wanted to replace the stock air pipe, as it contains a resonator which keeps it silent. It’s also not optimised, leaving room for improvement.

Used 2 aluminium joiners/couplers and flexible piping. Very happy with this cost effective result! Also, I love the supercharger whine 🙂

I also ordered a K&N RU-3190 filter, I didn’t know the previous owner fitted a Pipercross PX1875. In the end I sold the K&N as the fitment wasn’t good.

Mini Cooper S R53 JCW Airbox Intake Modification

Mini Cooper S R53 JCW Airbox Intake Modification

Mini Cooper S R53 JCW Pipercross PX1875 vs K&N RU-3190

Mini Cooper S R53 JCW Pipercross PX1875 vs K&N RU-3190


Mini Cooper S R53 JCW – Vacuum Gain System VGS Modification

As usual, the Mini Cooper S with the Eaton M45 supercharger also has a bypass valve, which helps with fuel economy and lighten the load on the supercharger during idling (for instance). On NAM (North American Motoring forum) I noticed a popular mod, which is also known as the VGS or Vacuum Gain System modification.

Basically, the VGS mod changes the way the Bypass valve is operated. From indirect vacuum to direct vacuum, allowing faster response of the butterfly valve, but also keeping it shut better so no boost is lost.

I liked it in the beginning, but it makes for a rough driving experience. So in the end I reverted and never went back. Thats why we experiment 🙂

Source: https://www.northamericanmotoring.com/forums/how-to/38268-drivetrain-operation-vacuum-gain-system-vgs.html

Changing the vacuum line routing.

Mini Cooper S R53 JCW Bypass Valve VGS Mod

Mini Cooper S R53 JCW Bypass Valve VGS Mod

Brand new Bapmic Compressor Bypass Valve (CBV).

Mini Cooper S R53 JCW Compressor Bypass Valve

Modifying the bypass valve.

Mini Cooper S R53 JCW Compressor Bypass Valve


Mini Cooper S R53 JCW – Starting a new Project

Last year, we were all affected by the pandemic. But even in such strange times, positive things happen. Like me buying a Mini Cooper S, which I wanted to drive for quite some time. I noticed one in the trim that I wanted and went ahead with it.

Looked even better than on the pictures in the advert & was fitted with extra’s like:

  • Carbon GP bumper inserts
  • Carbon handle
  • Carbon JCW hood scoop
  • Carbon Mini R56 spoiler
  • Chrono pack interior
  • LED Angel Eyes
  • LED amber indicators
  • Dechromed exterior trim
  • MSD Coilpack & HT leads
  • 17″ R113 Black / Chrome wheels

A lot of work already has been done, this will be documented as well. Stay tuned 🙂

Thanks to my buddy Joost Evers of Hobbygarage Evers for helping me out!

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)

Mini Cooper S R53 JCW edition (2006)




Volvo S80 2.4T JR Jetex Uprated Panel Filter

Decided to buy a panel filter from JR / Jetex. Build quality is nice, but could be better. Fitment looked like 100%, but unfortunately that wasn’t the case.

I tried to modify it a little bit, but that went wrong and I had to throw it away.

Volvo S80 2.4T JR Uprated Panel Filter

Volvo S80 2.4T JR Uprated Panel Filter




Volvo S80 2.4T Black Interior Trim

Found a second hand black trim set for the interior, which will replace the “old man” wooden look trimpieces. I started with the upper 2 pieces and will be replacing all bits somewhere this weekend.

It looks way better and more modern.

Volvo S80 2.4T Black Trim

Volvo S80 2.4T Wood vs Black trim

When I bought the S80, it looked like this.

Volvo S80 2.4T cockpit view


Volvo S80 2.4T Splitter Lip

Fitted a Aliexpress rubber lip on the front end of the S80. Looks good!

I used paper clip binders as the supplied tape will not hold well. No drilling required 🙂

Paper Clip Binders Clamps

Volvo S80 2.4T Splitter Lip

Volvo S80 2.4T Splitter Lip




Volvo S80 2.4T Pierburg TCV 7.22908.03.0

Replaced the Aliexpress Pierburg valve with a brand new original Pierburg unit. These are also known as the “Porsche” TCV and sold by ARDideas. Must have part for about 20-30 euro.

The difference is noticeable, especially when driving with half throttle.

Partnr: 7.22908.03.0
Partnr: 722908030

Volvo S80 2.4T Pierburg TCV 7.22908.03.0

Volvo S80 2.4T Pierburg TCV 7.22908.03.0

Volvo S80 2.4T Pierburg TCV 7.22908.03.0




Volvo S80 2.4T OEM US Lights

I received a tip via a forum member that the P2 chassis Volvo’s (S60 / V70 / S80) have builtin US lights functionality. The EU models only need a different bulb + bulb holder for the side indicators.

Looks absolutely great in combination with the projectors.

Partnr: 9178546 (bulb holder)
Partnr: 989790 (amber p21/8w bulbs)

Volvo S80 2.4T OEM US Lights

Volvo S80 2.4T OEM US Lights

Volvo S80 2.4T OEM US Lights




Volvo S80 2.4T Projector Headlight Retrofit

Bought a retrofit projector kit which will be fitted in OEM Volvo headlights for my S80. This will ensure that using HIDs or LED will not blind other drivers. The projector kit was sourced from Aliexpress. They are bixenon, but you can just snip off the wires as this functionality is not needed in the S80. The high beams are a separate H7 bulb.

Highly recommended, fitting them is quite easy. There is no butyl or permaseal used on these headlights. Only a small number of metal clips are used to gain access to the headlight internals.

I bundled them with H1 Led units, there give a tremendous amount of light without disturbing other road users.

Volvo S80 2.4T Retrofit Projector

Volvo S80 2.4T Retrofit Projector

The images should speak for themselves. If not, leave a comment!

Volvo S80 2.4T Retrofit Projector

Volvo S80 2.4T Retrofit Projector

Volvo S80 2.4T Retrofit Projector

Volvo S80 2.4T Retrofit Projector

Volvo S80 2.4T Retrofit Projector

Snip away some of the material as shown.

Volvo S80 2.4T Retrofit Projector

Volvo S80 2.4T Retrofit Projector

Volvo S80 2.4T Retrofit Projector

Volvo S80 2.4T Retrofit Projector

The end result looks good, very happy with the results

Volvo S80 2.4T Projectors


Volvo S80 2.4T Cross Country Edition

Took a snapshot whilst we went out for a walk with our dogs. I still like the look of this car very much 🙂

Volvo S80 2.4T Cross Country Edition




Volvo S80 2.4T Thermatec Teflon Intake Spacer (PTFE)

Bought a Teflon (PTFE) intake spacer for the intake manifold from Thermatec. It will isolate the intake manifold from the warm engine, which will result in lower intake temperatures. The phenolic spacers are identical in function, only the material used is different.

Lowering the Intake Air Temperature (IAT), will result in higher power figures. A simple supporting mod, which is quite inexpensive.

Pro tip: make a small indentation in the top left corner of the spacer where the bolt would go through the spacer/gasket (where the thermostat housing is), this will make the installation a lot easier due to the restricted space in that area.

URL: www.ebay.nl/itm/302474396288

Volvo S80 2.4T Thermatec Phenolic Intake Spacer

Volvo S80 2.4T Thermatec Phenolic Intake Spacer

Volvo S80 2.4T Thermatec Phenolic Intake Spacer




Volvo S80 2.4T Polyurethane Subframe Inserts

Bought a upgrade for the subframe. The polyurethane bushings are inserted into the rubber subframe bushings, which tightens them up and limit the movement in them.

Highly recommended from a performance point of view (night and day difference when cornering). But be aware, they do introduce vibrations into the cabin. It will take some time before these settle and the vibration will be lower in the end.

Brand: Parts4Swedes
Partnr: 61430104PU

Volvo S80 2.4T Polyurethane Subframe Inserts




Volvo S80 2.4T Team Heko Window Spoilers

Added Window Spoilers to the Volvo S80, I like the look but also they lower the wind noise when driving with open windows.

Also if it rains, you are still able to drive around with open windows, without any water ingress. And in the hot summers, you can safely let your windows down a little to stop the heat from building up in the car.

Type: DVO31222

Volvo S80 2.4T Team Heko Window Spoilers DVO31222




Volvo S80 2.4T Japanifold Exhaust Manifold

When I wanted to mount the TD04HL-16T turbo, I also wanted to couple it with the Japanifold, that should give good performance, but also the distinctive rumble of the 5 cilinder engine. I scored one via internet for a good price. The quality is immaculate, as they can handle a lot of abuse before they even start cracking.

But in the end I sold it, because my 2.4T already had the Japanifold fitted, so happy days 🙂 !

They are made in Japan, hence the name “Japanifold”. Partnr: 9207688

Volvo S80 2.4T Japanifold

Volvo S80 2.4T Japanifold

Volvo S80 2.4T Japanifold

Volvo S80 2.4T Japanifold