I did a thing…

T6_FunBus

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In a late night shopping fit, I ordered a revo air filter for the old girl. The filter could do with replacing (even though its been through a MAJOR service in a VW commercial workshop and a specialist in the past 12 months and looks like its never been changed….).

I’m a fan of foam, always used them on my cars over the years and they come as a standard fit item on higher spec models from factory we’ve bought, easy to clean and maintain too.

Anyhow, it was supposed to turn up yesterday but didn’t, and I’d already taken the lid off the airbox and binned the old dirty filter in prep, but needed to use the van last night to pick something up, and I wasn’t fishing the filter out of the wheelie bin full of crap and putting it back in! So I had a ramair cone filter 80mm ID from the audi (bought in error one drunken evening instead of the complete kit and kept as a spare).

So I wanged it on the end of the maf, and went to collect my wares.

All I can say is, my god the noise lol. Its like someone has a giant jet engine running, the intake suction noise and whooshing is insane at part throttle and beliw 2k rom, oddly at WOT and above 2.5k the intake noise goes silent. But, the van went like stink lol, previously it had a surge of torque up to about 2.5k then just made noise and felt wheezy, almost exactly like my TVR when that had a dirty filter and worn coils, now it revs freely and keeps pulling harder way up the rev range. I can only assume the old filter has had its day, I mean it looked dirty, but not crazy dirty.

Can’t wait for the panel filter to arrive though, because my god that intake noise will drive me bananas.

Anyhow, I am honestly not sure why just a filter could make so much difference, other than the other one is clogged up (again I have seen worse filters), are the TDI’s particularly fussy about filters?

Also, I’m genuinely surprised how well it pulls up the rev range for a 150. Is there a way with obd11 that I can see whether the previous dealer had mapped it? They do offer remaps as prt of sale, I didn’t ask for it, but the van doesn’t have a limiter etc like some AA vans do? It now has a surge of torque like it did before but continues to pull harder up to 4k rpm? #confused

Thanks.
 
Oh, also I had the updated software installed as per my other thread and believe I am now running the latest software. But van felt wheezy with old air filter after I picked it up, so its not the software change.

Putting the cone on the end did make a huge difference…

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Any thoughts on whether these specific T6 RamAir kits make a difference as they don’t come cheap aside from sounding like a back in the day RS Turbo?

IMG_8015.jpeg
 
Don’t do it if you have a tdi. Open cones make a horrendous noise. Unlike a petrol that only makes a lot of noise when you go heavy on the throttle and you hear the airflow and turbo, the TDI is most noisy at part throttle when all of the air is whooshing through and it shuts up when you get on it and accelerate hard.

It fan be a bit of fun around town but soon gets tedious, and at part throttle / cruise control on the motorway or A roads, its just a constant super loud whoosing that you have to shout over, it never shuts up.

I was thankful for fitting the panel filter when it arrived but too two months to get here!

My problem was a dirty / blocked paper panel filter that strangled the engine even though it had a full cambelt service at a VW commercial centre, go figure.

If you really are curious, just take the top of the airbox off, unbolt the MAF and buy a small cone the same ID as the OD of the MAF. Put it on with a jubilee clip, cable tie it up and go for a spin. That will cost you about £30 and see if you can live with it, but I’d wager not many people could.

Cheers.
 
If your van is under warranty I suspect the warranty (at least in respect of the engine components) would be invalidated by fitting such an induction kit.
Extra HP can only come from lower filtration levels or a greater filter surface area - I guess it'd be the former.
 
Haha :) I recon having a good clear out in the loo before a journey would get better gains :D
So you're advocating for an induction kit and an empty colostomy bag then? :D
 
Don’t do it if you have a tdi. Open cones make a horrendous noise. Unlike a petrol that only makes a lot of noise when you go heavy on the throttle and you hear the airflow and turbo, the TDI is most noisy at part throttle when all of the air is whooshing through and it shuts up when you get on it and accelerate hard.

It fan be a bit of fun around town but soon gets tedious, and at part throttle / cruise control on the motorway or A roads, its just a constant super loud whoosing that you have to shout over, it never shuts up.

I was thankful for fitting the panel filter when it arrived but too two months to get here!

My problem was a dirty / blocked paper panel filter that strangled the engine even though it had a full cambelt service at a VW commercial centre, go figure.

If you really are curious, just take the top of the airbox off, unbolt the MAF and buy a small cone the same ID as the OD of the MAF. Put it on with a jubilee clip, cable tie it up and go for a spin. That will cost you about £30 and see if you can live with it, but I’d wager not many people could.

Cheers.
So on goes a K&N panel filter, cheers for the heads up @T6_FunBus. As much as I like the whoosh that was when I was 19, which sadly was some years back.
 
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