moving air filters

[Green3R]

Pretty sure this will be a repeat topic but can't seem to find the info.

3R, so filters in the intercooler box.

Thinking of moving them purely to get some more noise! Sounds a bit too docile for me.

There's some that argue it's best to move just one to make both intake routes short but I'll prob move both.

The main questions:
Are there downsides?

Is it possible to use the original pipes- ie the long pipe from front turbo would be reused to run rear turbo filter..?

Anything else i should know before I go ahead?

also, on the subject of noise- recommendations on dump valve?
Yep, it's all about the noise, I appreciate it all makes 0.0% performance!

Thanks
Andy

[simonx50]

Its possible to do using the standard pipes, you may need to extend the oil breather pipe and make some brackets for the filters/block off holes in intercooler housing.
I fitted the pro alloy hard pipes they sound better and look tidier than the standard flexi ducting.
Not sure about fitting a dump valve as mine was already fitted.

[Gadgeroonie]

fit a dump valve if you want some noise

moving the filters forwards can be done but you will end up sucking hot air

[D_G]

Bulkhead air filters and HKS SSQV does it for me!

[Green3R]

Thanks for replies.

It's not an irreversable mod so will prob do it.

Understand that I will suck in warm air but maybe this is only a low speeds where there's little airflow.
mmm
thinking about it, the warm rad air probably slipsteams the car and dives in.

Maybe I'll put a probe where I plan to put the filter and see what the temps are like compared to ambient when driving.

Now I'm thinking about venturi- if there is airflow there it might actually cause low pressure around the filter..
but that would be the same where it is now- perhaps worse.

Gonna stop my non-science type ramblings now.

[AMG Merc]

Fun at first but constant Darth Vader noise can be tiring on long runs.

[andygtt]

Lots of discussion about if its good or bad to have it there... Simple fact is lots of people run them on the bullhead with absolutely no noticeable loss in power including some of the 600bhp club.

[D_G]

AMG Merc said:

Fun at first but constant Darth Vader noise can be tiring on long runs.

I've never tired of it, not even on long journeys. It's definitely one thing (of many) that makes it special.

[Green3R]

finished moving the air filters today, and as discussed, can be done with orginal pipes-with an extension to the oil breather. Obviously brakets and blanking plates needed making but I'm lucky enough to have the right machines to make that bit simple.

Biggest pain was getting the placement right on the bulkhead to clear the clam.

Best upside- has given me the comedy noises I was missing! It was far too civilised before. Some great noises now- well, same noises just I can hear them now.

Thanks all

[daddysumo]

Enjoy...Makes no difference to performance...

[stevegto3]

Ive been thinking about doing this, does anyone have a 'how to guide' :-)

[Green3R]

I can do a how-to now. Not tricky really.
What might be most useful is for me to draw up the brackets I made and try to reference where I put them.

You going to Brands this weekend? If so, you can have a look then. There will be a few others and everyone will have done it slightly differently.

A quick guide, assuming you re-use the exisitng pipework:

Remove the pipes from the air filters.
Remove filters from the intake box.
At some point, make up some blanking plates to cover these holes. I riveted on some alu discs.

The long pipe to the front turbo is in 2 parts. the short part has the oil breather port.
Connect the short hose onto the passenger side filter.
Extend the oil breather hose with a length of 3/4 bore hose.
Use the short rear hose to complete the connection to the front turbo.It's a pain getting that pipe on as everything seems to be in the way!

Use the remaining long hose to connect the drivers side filter to the rear turbo.

That's all the pipework done!
Now, make up the brackets to mount the filters.
The drivers side one seems to mount well to the bulkhead.

The passenger side one sits at an angle that meant it wouldn't mount the same so I screwed it to the chassis.
If you used a new, longer pipe then a better position could be had.
Check clearance with the rear clam before you committ to drilling all the holes!

I'll edit this later to add some pictures.

I just edited it to correct the poor spelling in places!

Edited by Green3R on Tuesday 27th August 08:24

[stevegto3]

Hi Andy

Thanks, thats very useful and any pics would be appreciated. Did you have to cut any of the existing pipes?

Im not going to be able to make Brands, really wanted to, 2nd child is due soon, so im on a short leash ;-)

Steve

[mgbond]

Would be a good idea to put ur guide in the fixes info section of Noble parts.

Why not do the drawings and scan them and upload them to noble parts or link to a host upload site like photo bucket.

Bondy

[Green3R]

no pipes cut so it's all reversable- apart from the couple of screw holes in the bulkhead.

I'll sit down and do a write-up with photos and bracket drawings over the next day or 2.

[stevegto3]

Excellent, thanks Andy!

[stevegto3]

Hi Andy

I had a look at doing this today on my GTO3, but I couldnt work out where the oil breather port goes.

So long front turbo pipe becomes rear turbo to front passenger filter.

Short rear turbo pipe becomes front turbo to filter.

So as the oil breather port is on the passenger side what do you connect it to?

Cheers
Steve

ps any chance of some pics and drawings of your brackets?

[Green3R]

some rough photos- better to come
left:


right


intercooler


not great, but you'll see the original breather hose still connected to the (catch tank?). I then extend this ( I used a bit of 19mm copper tube to join to another 3/4 hose to extend it. Youll see this extended hose connected to the passenger side filter hose.

Andy

[stevegto3]

Thanks Andy

very helpful, so basically you extend and run the breather pipe from the catch tank up along the engine to the passenger filter.

Your brackets look very tidy, do you fancy making me some if I paid you for it? :-)

Cheers
Steve

[Green3R]

Brackets would be no problem to make. I'd have to get some more material but that's not a great expense.
I'm not available for a couple of weeks from this weekend so it wouldn't be till getting on for the end of the month.
If you're happy to wait for a while, then PM me and I'll sort something out.