Makes me hard to believe that there could be so much cylinder blow by gases...

Turbo diesels are the absolute worst for blow-by, very high cylinder pressures at much lower RPM than petrol engines. Many diesel engines use three compression rings as well as an oil scraper to try and reduce blow-by.

It's also the reason diesel engine oil is so sophisticated, it has to cope with a lot of contamination from blow-by.

Does 25mm hose clamp down nicely or is it too big?

A reduction area only means a reduction in flow if the velocity is fixed. The actual vent is described as a regurgitator valve and I wouldn't be surprised to find a constriction inside it which may have far more effect. Also my old injection pump Octavia had a vent which was about 19mm diameter whereas my new 2.0 pd Octavia has a vent which is more like 25mm, I doubt the volumes of gas coming from CCTV are much different.

Also we need to consider whether the pressure in the inlet is significantly different from atmospheric pressure as again this could make a far bigger difference.

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Well I can't seem to find any 19mm outlets anywhere ! So next time I'm on the rolling road ill compare the figures from when I just had the 19mm elephant mod to now when I have the catch can with 15mm outlets.

Theres 19mm

http://www.saikoumichi.com/951_page.htm

Not cheap but the only proper one

Also no restricion in oem ccv pipe, all im saying is skoda designed it at 19mm for a reason, if it was ment to be 15mm it would have been 15mm

Which variation of this item would be suitable?

http://item.mobileweb.ebay.co.uk/viewitem?itemId=111052736341&index=4&nav=SEARCH&nid=62112543797

I have this catch can but I assume most including the one in this thread would have the same thread sizes etc my catch can is the same as this one. http://item.mobileweb.ebay.co.uk/viewitem?itemId=350788661783&index=1&nav=SEARCH&nid=83042251249

@tommccabevRS

Looking at your engine bay, what are you using instead of a pd160 intake, got any links?

Cheers!

@tommccabevRS

Looking at your engine bay, what are you using instead of a pd160 intake, got any links?

Cheers!

joe_vrs_tdi made an alternative for a lot less, I used the parts he did and came out with this which is great ! If you go onto his profile there is a link he made with all the parts

Cheers! ill have a look.

Theres 19mm

http://www.saikoumichi.com/951_page.htm

Not cheap but the only proper one

Also no restricion in oem ccv pipe, all im saying is skoda designed it at 19mm for a reason, if it was ment to be 15mm it would have been 15mm

i know what your saying fella, it's 19mm for a reason. Just been up to Revolution motors tore and they're ordering me 2 in, happy days

i know what your saying fella, it's 19mm for a reason. Just been up to Revolution motors tore and they're ordering me 2 in, happy days

Are you getting x2 19mm pipe connectors or x2 new catch cans??

Are you getting x2 19mm pipe connectors or x2 new catch cans??

pipe connectors mate

Awesome Gti sell catch cans with 19mm outlets for ~£80.

They're made my a company called 42draft I think.

pipe connectors mate

How much did they quote for the connectors m8?

Are they half inch thread?

http://item.mobileweb.ebay.co.uk/viewitem?itemId=111052736341&index=4&nav=SEARCH&nid=62112543797

Edited 25 May, 201313 yr by wilsy7

How much did they quote for the connectors m8?

he said about £5 each, he's ringing me when he's ordered them to tell me the price, will keep you posted or on Instagram dude

he said about £5 each, he's ringing me when he's ordered them to tell me the price, will keep you posted or on Instagram dude

I wouldn't mind knowing how you get on with these when you get them please mate.

Well for anyone who cares lol I just ordered the above I posted, mine was 3/4 inch threading, went for the 25mm.

Hi,

I have fitted the square Catch Tank from Toyosports(UK) using the 15m/m fittings mounted at the front next to the Radiator. But instead of running the second pipe to the engine I have used about 30ctms of pipe then finished with a mini air filter. This seems to work fine as I am not going to the engine.

John.

Hi,

I have fitted the square Catch Tank from Toyosports(UK) using the 15m/m fittings mounted at the front next to the Radiator. But instead of running the second pipe to the engine I have used about 30ctms of pipe then finished with a mini air filter. This seems to work fine as I am not going to the engine.

John.

I'm going to be ordering a small oil filter this week once I've got the 19mm outlets

Hi,

I have fitted the square Catch Tank from Toyosports(UK) using the 15m/m fittings mounted at the front next to the Radiator. But instead of running the second pipe to the engine I have used about 30ctms of pipe then finished with a mini air filter. This seems to work fine as I am not going to the engine.

John.

That sounds exactly how i've got mine.

So it doesnt have to be 19mm tank inlets then. . !?! :-$ . . Coz people are using 15mm inlets with no trouble. .

Im asking because I bought a catch can about a day before discovering this thread. . N dont wanna fit it n bugger my engine up. . Ive got 16mm I.d silicone hose,15mm inlets to the can and a 15mm I.d breather filter.

Need a 19mm hose don't you?

Need a 19mm hose don't you?

if the cans only got 15mm inlets there gonna restrict it anyway even if you have a 19mm hose leading to it. . Surely? :-/

its just all confusing me people saying its bad . . N others saying they run 15mm fine with no probs.

I mean you'll need at least an 19mm hose to attach to the actual ccv. Can clamp a 19mm hose down over a 15mm inlet but might struggle to get a 15mm hose over a 19mm ccv outlet