Don't know about the CAT. Mine has still yet to be gutted, but If you have had a decat PIPE fitted, I would imagine it would be louder than a gutted CAT and def louder than a standard. The question is - by whos definition of loud - and have you got a loud box by the rear bumper too?

Me - I wouldn't buy any pipes. Just salvage what was left and wang a peice of stainless or ally pipe with rubber or silicone ends. But that is cos I is skint init...

Fit an oil catch tank too - you can make one from a steel coffee can to test- or by one for 20 quid plus - and see if that oil is coming from your turbo or your rocker cover breather. If it is the rocker breather - its solved. If it is your turbo .... well just depends on how much it is bleeding.


Good luck

 

Decat is a proper decat pipe, as I have a decent scrap merchant that should recover most of what I paid for the decat, + I got a deal purchased my decat and got an EGR delete kit for free. so £40 for a decat wasnt bad at all

Loud for me, and the father in law who also said it was really loud..had quite a few modded cars all decatted and this for just a decat is on the louder side of the scale

No loud pipe at the rear, (thankfully)

Makes sense if you can do it, but i dont think I will be too much out of pocket if any for this mod..

Would love to make an oil catch can, but wouldnt have a clue where to start, and garages round here only really do standard work,

 

Would love to make an oil catch can, but wouldnt have a clue where to start, and garages round here only really do standard work,

I will make one and show you how to do it

 

You might have damaged the flexi. This would make it loud if its blowing out.

 

I was out today and had the window down and the noise did sound like it might be coming from the middle of the car, I was thinking maybe the decat hadnt sealed properly, but will get it back on the ramps and see if I can see any leaks, or damage to the flexi.. hopefully an easy fix if it is one or the other of them..

I will make one and show you how to do it

Be interesting to see. Not sure I would have the DIY skills to do it.. Honestly when it comes to cars and fixing them, Frank Spencer would have more luck

 

Something doesn't sound right, with a standard back box there is barely any change in noise. It is a bit louder and the whistle of the turbo is more obvious but its nothing drastic.

 

Thanks for clarifying, can hear the turbo more, but its more the noise when accelerating, when cruising at 60/70 its fine, but when my foots on the floor its mega loud. I have asked the in-law who I borrowed the ramps off if I can borrow them again and i will have another look, just gotta wait for them to be free now.

 

unless you make an EXCEPTIONALLY large catch-can, it won't separate the suspended oil fumes from the blow-by gasses - it's simply not what they're actually meant to do (their original purpose, is pretty much non-existent in modern production engines too, especially transverse engine fitment)


Length of pipe to the back of the car, this gets rid of the oil mist, vapours, and that nasty smell

 

A properly designed one will drop out more of the oil from the fumes.

http://forums.mg-rover.org/showthread.php?p=6022689#post6022689

This is a better example, and serves a dual purpose :

 

Found my fault, massive hole in my centre pipe just before the backbox. so now on the hunt for a new centre pipe and backbox, but all scrap yards only have ones for the petrol ones..

had a look at your guide WTF.. good guide but not sure its for me. maybe in the future when I get everything else sorted that I want.. Just keep running into more and more that needs fixing.

 

Just keep running into more and more that needs fixing.

Thats the only problem with a 10+ year old Rover. At least parts are cheap and they are simple as peas to work on

 

eBay for a new one - a scrapper could be just about to fail like yours has. They're not too expensive

 

Yeah I found some on ebay, but when I first purchased the car I never liked the back box as it just doesn't look right, pointing to the ground, so been trying to look for a second hand stainless steel one, but not having much luck at all.. Lots out there for the petrol variants

 

All the diesels point to the ground - you're going to need to weld your own tailpipe on or look for a stainless system.

Powerflow made the old stainless system on my ZS diesel, but my god was it loud! Really freed the engine up though.

 

Got a quote from power flow of about £350, as much as it is tempting just cant afford that right now, spent so much on the car in the last month, wasn't planning on buying an exhaust just yet, more being forced too

I was told the 160 backbox should fit the diesel, so 1 plan I have if I cant find a cheap enough second hand stainless is go for one of these http://www.eurocarparts.com/ecp/c/M...usts/exhaust-parts/?705751621&1&de38b9dab74ca030654153a4bbc265b85635a7f8&000536
with this centre as it says it has the fitting kit with it, which should save a few quid..

http://www.ebay.co.uk/itm/390650409623?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649

Not the best looking back box but at least the exhaust wouldn't be facing the floor, (providing I'm right and it fits)