pod filter

[90lff]

ok so honestly i want the pod filter for the flutter noise...
but i was told you need a BOV for that noise
and BOVs are illegal unless they are pump back...
are these both true?
i have the the tissshhh noise in the golf but only very quietly so does that mean it has a bov on it or something else?

mikinoz you said you had put a pod filter ondone this...
do you get the flutter?
what sort of vw do you have?
is it turbo'd?
cheers

[Greg Roles]

Until I get some spare $ for one to dremel, I am staying standard - I don't want to get stranded if I make a mistake!

Where's your sense of adventure?

MAFgrid-less with my temporary bucket pod and absolutely no problems thus far.... but boy isn't the response better!



You have to fold back 4 tabs on the front side of the maf grid, around the edge. They are very small, like only 1mm wide, and it's obviously been melted together, but they are easily peeled back with a small screwdriver. Taking the top sensor out is tricky with the special star screws, but gotta love the multigrips. Getting the whole assembly out is tricky as it clips into the rear 3 arm holder, and despite several attempts to just unclip the rear, I got the poops and just took to it with the cutters. It would just push back in and need three spots glued to be back to stock. I'll drive it a few more days and watch for any vag com errors, but yesterday the car ran exactly as per usual, even idle was perfect from the first start.

I've been chatting to Steve at Modshack, and am getting a custom housing off him at a very reasonable $150 odd less filter. Thanks for pioneering this for us here Mik!

[Greg Roles]

Gotta love the 1 kg protein bucket!




It's actually the same size as Modshacks TTDA, shorter yet fatter filter, and with one thin hose from the radiator lengthened will fit a treat.

Boy don't you feel the hot air from the engine when you've been idling in traffic for a while! My proper housing will be sealed to the front intake to prevent the hot air ingress as much as possible.

[motk]

ok so honestly i want the pod filter for the flutter noise...
but i was told you need a BOV for that noise
and BOVs are illegal unless they are pump back...
are these both true?
i have the the tissshhh noise in the golf but only very quietly so does that mean it has a bov on it or something else?

A diesel Golf has a wastegate - as there's no throttle body there's no need for a BOV. IMO they're fairly pointless anyway unless you're running Stupid Boost.

[mikinoz]

I love that! On my MKIV I was the master of homebrew mods.

I may try the MAF on the weekend.

Our family only having 1 car 2 jobs and 2 kids - I am no longer allowed to just 'try out' as many things on this car as I was doing on the IV

[mikinoz]

ok so honestly i want the pod filter for the flutter noise...
but i was told you need a BOV for that noise
and BOVs are illegal unless they are pump back...
are these both true?
i have the the tissshhh noise in the golf but only very quietly so does that mean it has a bov on it or something else?

mikinoz you said you had put a pod filter ondone this...
do you get the flutter?
what sort of vw do you have?
is it turbo'd?
cheers

Ok - I get both induction and wastage noise - also a louder spool of the turbo.

I have been stock this week and the response of the engine is dramatically reduced.

I will need to get some time and put up a video/audio clip for you.

[Greg Roles]

Well I thrashed the bejesus out of it all morning, and it didn't miss a beat. I figured if it was going to run incorrect fuel ratio's and throw an error, several 5000 rpm attempts would do it.

No problems, runs as per usual, and I can find no errors at all on Vag-ina-com. I concur that Modshack is correct in that the grid is only required if you run the stock box with the 90 degree lid, to even out the airflow.

Now, onto the exhaust.......

I wonder if an active DPF bypass for full throttle applications would be possible once we get a way to outsmart the DPF sensors. I think that would be best of both worlds. I plan to visit a local reputable exhaust shop for some new muffs / loss of that huge rear one, and I'll see what they think.

Rock on the home mods.

[gregozedobe]

I wonder if an active DPF bypass for full throttle applications would be possible once we get a way to outsmart the DPF sensors. I think that would be best of both worlds. I plan to visit a local reputable exhaust shop for some new muffs / loss of that huge rear one, and I'll see what they think.

I love reading about the plans of the audaciously ambitious

I'm sure it is mechanically possible to dynamically bypass the DPF (maybe operated by some kind of pressure sensor on the exhaust or a switch that senses full throttle like an old style automatic gearbox kick-down switch).

However, integrating non-DPF mode with the engines exhaust control electronics may be more challenging. Maybe it is worth trying a really cheap non-DPF "bodged together" exhaust setup to see if there are any real gains to be had by removing the DPF ? If it only gains you 2-3 Kw it won't be worth all the trouble and expense of doing it properly, but at least you'll know for sure.

If all it does without the DPF is throw engine error codes but it runs OK you could just do the crude thing and ignore them and later reset with vag-com). If it puts you in limp home mode then you will need to delve deeper.

Please keep us informed.

[Greg Roles]

Greggo, sounds like a good idea to fab up a temporary delete and dyno it. Would settle a lot of arguements! My brother is quite the welder too...hmm.....

I do like the idea of keeping the DPF for 90% of driving is pottering around, and to just have a straight through for the odd traffic light grand prix. I figure that'd be the most intelligent comprimise. Once a delete kit comes out, turning those electronics on and off with the bypass would be relatively straight forward. Helps that my old man is an electronics guru though!

My other thought is that bigger DPF's if not already out there will be forthcoming from VW, and perhaps upgrading to one off a Tourag or something would give a much lower pressure drop whilst doing the right thing. I'd pay to do that. I'm going to stick with the DPF until some options arise, and take it from there.

[Logzy]

Greggo, sounds like a good idea to fab up a temporary delete and dyno it. Would settle a lot of arguements! My brother is quite the welder too...hmm.....

I do like the idea of keeping the DPF for 90% of driving is pottering around, and to just have a straight through for the odd traffic light grand prix. I figure that'd be the most intelligent comprimise. Once a delete kit comes out, turning those electronics on and off with the bypass would be relatively straight forward. Helps that my old man is an electronics guru though!

My other thought is that bigger DPF's if not already out there will be forthcoming from VW, and perhaps upgrading to one off a Tourag or something would give a much lower pressure drop whilst doing the right thing. I'd pay to do that. I'm going to stick with the DPF until some options arise, and take it from there.

Love the bucket air filter, looking good.
Have you considered a dome shaped cap to clip onto the front of the air filter. This would reduce the turbulance produced by air entering the concaved cone in the front of it. May give a smoother air flow.