15 replies to this topic

[P11 COV]

I had a look at my air filter today. I am embarrased to say this is the first time since I've had the car (5 years?)    

 

Anyway, as you can imagine it was pretty horrible. It is an ITG foam one. 

 

What should I do? Can I wash this one. Will a standard filter do the job just aswell? I think the Airbox is a modified Coutenay one - it seems to have an extra hole in it.

 

I have  a BMC CDA airbox which I did use on my last turbo mnay years back. I am wondering about trying this out again.

[Zoobeef]

DG airbox using standard filter

[techieboy]

Yes, you can clean it and lightly re-oil it, if you can be arsed.

[Dave H]

I have a GM paper filter in my modified airbox and its good for the other side of 400 BHP. Good filtration as well. Dave

[P11 COV]

I have a GM paper filter in my modified airbox and its good for the other side of 400 BHP. Good filtration as well. Dave

I was inclined to think that myself.

[rob999]

Standard paper filter all day long.

[Rickwoo118]

I have a GM paper filter in my modified airbox and its good for the other side of 400 BHP. Good filtration as well. Dave

Yeah that.

[siztenboots]

the problem with the standard filter is only a very small part of its surface area gets used by the airbox

 

I use [font="'times new roman', serif;"]K&N RC-3690  , this is good for plenty of bhp[/font]

 

[font="'times new roman', serif;"]to give you some idea of size[/font]

 

[font="'times new roman', serif;"][/font]

 

[mbes2]

Steve, is that your car ? 

 

Is that a oil cooler fitted? 

[siztenboots]

not my car , the black bit is the side sill , this is carstens ( cs_ ) monster car , something like 380ps

[P11 COV]

the problem with the standard filter is only a very small part of its surface area gets used by the airbox
 
I use K&N RC-3690  , this is good for plenty of bhp
 

 

K &N site says that's a cotton gauze filter. Do they need to be oiled or is that's just the foam ones. If so what's the maintainence required on the K &N?

[Bumblebee]

Apexi filters are good and there a dry filter,so pretty much maintenance free

Edited by Bumblebee, 24 June 2013 - 05:51 PM.

[Duncan VXR]

the problem with the standard filter is only a very small part of its surface area gets used by the airbox

 

I use [font="'times new roman', serif;"]K&N RC-3690  , this is good for plenty of bhp[/font]

 

 

 

 

 

our right steve, thats is he case of the oem box setup, Dave handy work removes that

 

Sure when I was round ITG Andy confirmed the surface area of the oem filter test flowed 438bhp or 458bhp before restriction. Cant remember which for sure.

 

clearly filtration better than any aftermarket filter

 

Run an Apexi on my track beastie (SR20DET powered) and seem to flow well but dont care about filtration due to track use only and it sticks out the side of the bonnet LOL (no room under bonnet) it does however seem to be better than a lot of the other jap options

 

Also depends on volume of intake you lik between the modded air box vs apexi - the apexi made good power on George BC car on standalone

 

DG

[Speedy_GL]

I use one of these filters!

http://www.greenfilt...CC=11&PTC=AFG17

Air Filters (Univ Twin Conical Silver)

 post-739-0-68662300-1315479056.jpg   64.58KB   4 downloads

 post-739-0-54566700-1315479148.jpg   128.61KB   4 downloads

 ansaugung.jpg   71.32KB   4 downloads

 post-739-0-10981100-1331337534.jpg   89.73KB   4 downloads

 

 

Edited by Speedy_GL, 27 June 2013 - 10:50 AM.

[turbo boy]

I am running the Apexi and I cant praise it enough. Sounds absolutely awesome - Lots of sucking  - if only home life could be this good! I also think that the engine runs smoother under boost ith  mod. Jon

[P11 COV]

I am running the Apexi and I cant praise it enough. Sounds absolutely awesome - Lots of sucking  - if only home life could be this good! I also think that the engine runs smoother under boost ith  mod. Jon

Well for the moment I have put a BMC carbon dynamic Airbox on it. I found it gathering dust in my garage from my last VXT. It feels smoother but i cannot work out whether it is or whether it has lost me power. It's certainly quieter than the modified standard air box.