CDTi Intake modification

pugcrew · 14th January 2018, 20:05

As I will shortly be removing my front bumper I have read about other jobs to do at the same time.

I understand that there is a mod to the air intake that can be done. I think I want to go for the option to just modify the existing intake but can't really understand what this involves.

Can anyone explain this please?

marinabrian · 14th January 2018, 20:23

Quote:

Originally Posted by pugcrew

As I will shortly be removing my front bumper I have read about other jobs to do at the same time.

I understand that there is a mod to the air intake that can be done. I think I want to go for the option to just modify the existing intake but can't really understand what this involves.

Can anyone explain this please?

Yes I can explain

This modification, does not increase airflow, and serves two purposes.

1. It effectively bypasses the water shedder which is mounted underneath the slam panel, which leads to premature MAF sensor failure.

2. This is a modification championed by a person with a vested interest in selling MAF sensors.

In other words, don't do it

Brian

grivas · 14th January 2018, 20:24

Quote:

Originally Posted by pugcrew

As I will shortly be removing my front bumper I have read about other jobs to do at the same time.

I understand that there is a mod to the air intake that can be done. I think I want to go for the option to just modify the existing intake but can't really understand what this involves.

Can anyone explain this please?

Hey there, with regards to the air intake, I would suggest that you leave it exactly as it is, modifying it serves no purpose in a standard tuned car, if your vehicle is a diesel variant, the most important aspect of the air trunking is that there is a water spray deflector fitted in front of it to prevent water spray from being sucked in wetting the air filter and contaminating the MAF sensor...the deflector was not standard fit on early cars and was subject to a Rover recall, so look through the front grill at about 12 o'clock for a piece of metal two inches wide and six long, if not there get one fitted asap.

pugcrew · 14th January 2018, 21:32

Thanks for the replies, very helpful.

My car is a 2003 so not sure whether that counts as an early car or not but I'll check for the water shredder.

Arctic · 15th January 2018, 00:22

I must have replaced at least 5 of these so called air duct modification in the last 30 months, I have a few why I don't know but I am sure that one day the cut off part will come to good use for something.

As stated above leave the air duct as it is, also you will note it as a little captive pot with an hole in it to catch water, which then drips down into the engine bay.

slovcan · 15th January 2018, 01:11

Is there a possibility of the inlet collapsing on itself at WOT? I saw somewhere the suggestion of putting a bolt/washer/nut affair down through the middle of the inlet to prevent this from happening. I can't see a downside to this. What do you think?

Cheers,
Glenn

Robson Rover Repair · 15th January 2018, 01:40

I must admit, as my remap is mafless ive no concern about my maf, but i did replace the paper filter with a oil base pipercross air filter (again not ideal with a maf).

100k miles later over 6/7 years and not a problem but I can see how it would concern people and for none mafless owners damage them long term.

14th January 2018, 20:05	#1
pugcrew Avid contributor none Join Date: Apr 2016 Location: Seaford Posts: 146 Thanks: 0 Thanked 3 Times in 3 Posts	CDTi Intake modification As I will shortly be removing my front bumper I have read about other jobs to do at the same time. I understand that there is a mod to the air intake that can be done. I think I want to go for the option to just modify the existing intake but can't really understand what this involves. Can anyone explain this please?

15th January 2018, 00:22	#5
Arctic Give to Learn Freelander 2 Join Date: Aug 2010 Location: West Midlands Posts: 18,837 Thanks: 1,155 Thanked 6,407 Times in 3,874 Posts	I must have replaced at least 5 of these so called air duct modification in the last 30 months, I have a few why I don't know but I am sure that one day the cut off part will come to good use for something. As stated above leave the air duct as it is, also you will note it as a little captive pot with an hole in it to catch water, which then drips down into the engine bay. __________________ Arctic Givology Learn to Give Everything is Achievable ad altiora tendo. Check out our Nano meet dates http://www.midlandsnanomeets.co.uk/ http://www.the75andztclub.co.uk/index.php?thepage=howto " You do the work , we supply the expertise "

15th January 2018, 01:11	#6
slovcan Gets stuck in 75 Tourer CDT MK2 manual in Glorious Grey Join Date: Jan 2018 Location: Slovakia Posts: 987 Thanks: 926 Thanked 346 Times in 252 Posts	Is there a possibility of the inlet collapsing on itself at WOT? I saw somewhere the suggestion of putting a bolt/washer/nut affair down through the middle of the inlet to prevent this from happening. I can't see a downside to this. What do you think? Cheers, Glenn __________________ Southern Slovakia Anything can happen in Formula 1 and usually does - Murray Walker 1999 Triumph Trophy 900, Saddlesore 1600, Iron Butt Riders Association #63720 2005 Rover 75 CDT Tourer MK2

15th January 2018, 01:40	#7
Robson Rover Repair NI/ROI RS ZT-T 190 / 75 Diesel x3 / 6 door limo / 216 Cabby / Rover 25 van Join Date: May 2009 Location: Antrim Posts: 8,104 Thanks: 299 Thanked 1,046 Times in 568 Posts	I must admit, as my remap is mafless ive no concern about my maf, but i did replace the paper filter with a oil base pipercross air filter (again not ideal with a maf). 100k miles later over 6/7 years and not a problem but I can see how it would concern people and for none mafless owners damage them long term. __________________ Cheers, Colin Robson Rover Repair on Youtube DISCOUNTED MTEC BRAKES FOR ALL MG ROVER'S Braided hoses, more coating and pad options for 2024

14th January 2018, 21:32	#4
pugcrew Avid contributor none Join Date: Apr 2016 Location: Seaford Posts: 146 Thanks: 0 Thanked 3 Times in 3 Posts	Thanks for the replies, very helpful. My car is a 2003 so not sure whether that counts as an early car or not but I'll check for the water shredder.