Raceland Filter Modifications **Rolling Roaded today**

  1. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #1
    **Update 5/11/10**

    Got the car on the rollers today With the Red filter fitted 122.6 bhp

    With the Wolfrace modification 127.7 BHP
    See below for the Air filter mods :

    Not bad for £20


    Since my car is in getting some work done I manged to go over & pull my raceland off it.

    I will post up the pics :

    I am gonna start modifiying it by fitting a new bigger filter, I have a choice of filters available.

    Raceland Red come as part of the original kit

    HKS cost £115 these are for a Rx7 twin turbo or skyline

    Wolfrace / R spec £49.99 or as low as £25 delivered for a full induction kit (the kit is really nice quality) with arocker filter included as well as loads of other fittings



    I started by looking at the fitment





    The HKS requires a 15mm spacer to be costructed so that the plastic shields can be bolted back together. ( will go to the shop yo get materials for this later)

    Here is a front view of the HKS & Wolfrace fitted





    So i decided to try the wolfrace kit, its a big filter with probably 3 times the surface area of the raceland.



    The housing just rebolted up no problems at all.


    Refitted it to the car , could not go for a drive as the car had not brakes on.


    With the engine running you can hear this sucking like a dutch hooker, it sounds louder than the red raceland for a start.

    Once I get the car back on the tarmac I will start experimenting with cold air feeds .
  2. Saxperience Forum Bum Joined: Sep 2009 Stranraer Posts: 3437 bodied VTR
    #2
    great looking test are you modding how the air gets to the filter? cuting slam panal ect?
  3. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #3
    Quote:
    Originally Posted by -shuggles- View Post
    great looking test are you modding how the air gets to the filter? cuting slam panal ect?
    Will be as soon as I get my car back. Also will be putting it on the rollers
  4. Saxperience Forum Bum Joined: Sep 2009 Stranraer Posts: 3437 bodied VTR
    #4
    Quote:
    Originally Posted by jonathon5 View Post
    Will be as soon as I get my car back. Also will be putting it on the rollers
    cool al be keeping an eye on this
  5. Saxperience Forum Bum Joined: Jan 2010 London Posts: 2768
    #5
    Really interesting project there, keep us up to date
  6. Frequent Poster Joined: Apr 2010 Shavington Crewe Posts: 828 MK2 Saxo VTR 51 PLATE
    #6
    any more news on this, just brought and fitted my raceland and only got red filter and tbh it makes engine hesitate, all help appreciated cheers mate
  7. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #7
    Quote:
    Originally Posted by H-Unwin View Post
    any more news on this, just brought and fitted my raceland and only got red filter and tbh it makes engine hesitate, all help appreciated cheers mate
    I now have the modified filter back on the car & i also drilled 6x20mm extra holes in the side of the filter housing. They are on the side of the housing nearest the battery.

    The car feels as if it pulls harder above 5000 rpm now. On tick over you can hear the filter sucking air in, which could not be heard before

    car is on the rollers in 3 weeks time.

    I have also spotted a few other small alteration that could be made to help it gulp more cold air
  8. Frequent Poster Joined: Apr 2010 Shavington Crewe Posts: 828 MK2 Saxo VTR 51 PLATE
    #8
    you got any pictures of this, as ive heard of drilling these holes in the top for more air, cheers again
  9. Regular Poster Joined: May 2010 skipton Posts: 401 metro rio grande pug 306 dt corsa 8v sri tuned
    #9
    cool. i have already done this mate as i got a wolfrace air filter for cheap of ebay and thought what if lol. i have cut some ovals into the slam panel to let more air in. i have also jigsawed the raceland enclosed piece. on the front of the enclosed intake area it narrows down. so i cut the top half of it all the way accross about two inches from the front. can feel a slight better throttle response. great minds think alike
  10. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #10
    Quote:
    Originally Posted by stevyj View Post
    cool. i have already done this mate as i got a wolfrace air filter for cheap of ebay and thought what if lol. i have cut some ovals into the slam panel to let more air in. i have also jigsawed the raceland enclosed piece. on the front of the enclosed intake area it narrows down. so i cut the top half of it all the way accross about two inches from the front. can feel a slight better throttle response. great minds think alike
    Get some pics up of the whole setup, this is the way forward I think
  11. Frequent Poster Joined: Jul 2007 Posts: 810 2001 VTS
    #11
    Nice one dude.

    Just to add while we're discussing Raceland Induction Kits that I saw a 5.5BHP gain from fitting a Raceland Induction kit with the red filter over the standard VTS airbox and a K&N (PM if you want a copy of the print out).

    I've now fitted a nice clean Green replacement and will be looking at trying the twin cone Green filter early next year.

    All in all these things kick ass even with the standard red filter
  12. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #12
    Quote:
    Originally Posted by Finchowned View Post
    Nice one dude.

    Just to add while we're discussing Raceland Induction Kits that I saw a 5.5BHP gain from fitting a Raceland Induction kit with the red filter over the standard VTS airbox and a K&N (PM if you want a copy of the print out).

    I've now fitted a nice clean Green replacement and will be looking at trying the twin cone Green filter early next year.

    All in all these things kick ass even with the standard red filter
    Thats a cracking result

    I found my car lost top end but felt better lower down with the red filter no idea why . But it deffo feels to tug harder above 5000 rpm now , but we will see what the rollers say
  13. Forum Section Moderator Joined: Aug 2008 Liverpool Posts: 15517 Saxo VTR
    #13
    Need to test the Green filter that Kam sell with the Raceland, most people have this filter tbh
  14. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #14
    Quote:
    Originally Posted by Saxo_vtr View Post
    Need to test the Green filter that Kam sell with the Raceland, most people have this filter tbh
    That green is also small the k 2,65 green is good for 178bhp max . So once it starts getting dirty it's efficiency with start to drop rapidly. On a 150 ish brake up cammed vts power will be lost. That setup won't be available much longer as raceland have stopped making it. So no point in testing that one.


    Th wolrace big filter can be bought for £20 delivered , I may have a play with building my own modified air box
  15. Saxperience Forum Bum Joined: Sep 2009 Stranraer Posts: 3437 bodied VTR
    #15
    what about playing about with heatwrap? could reduce intake temp
  16. Frequent Poster Joined: Jul 2007 Posts: 810 2001 VTS
    #16
    I'd imagine that a carbon fibre scoop (liuke the Pro Comp) with a Samco silicone 90 degree elbow and the phat twin cone Green filter would be thee most epic set up.
  17. Regular Poster Joined: May 2010 skipton Posts: 401 metro rio grande pug 306 dt corsa 8v sri tuned
    #17
    yeah sounds good but silly monies. ill put a pic on later of air filter
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  18. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #18
    Quote:
    Originally Posted by stevyj View Post
    yeah sounds good but silly monies. ill put a pic on later of air filter
    Get the pics up of your slam panel mods as well
  19. Infrequent Poster Joined: Mar 2010 Posts: 100
    #19
    cool test mate
  20. Regular Poster Joined: May 2010 skipton Posts: 401 metro rio grande pug 306 dt corsa 8v sri tuned
    #20
    hi dudes forgot completely about pic first thing in morning i will put pic on as its too dark now
  21. Regular Poster Joined: Jul 2010 Stoke on Trent Posts: 433 Saxo 1.1i sx
    #21
    Really good Test

    Cleared up quite a few burning questions

    Thanks
  22. Regular Poster Joined: May 2010 skipton Posts: 401 metro rio grande pug 306 dt corsa 8v sri tuned
    #22
    heres the pic finally lol . could do with cuttining the raceland bit neater but what the hell does the job

    1 user thanked this post:
  23. Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)
    #23
    Quote:
    Originally Posted by jonathon5 View Post
    That green is also small the k 2,65 green is good for 178bhp max . So once it starts getting dirty it's efficiency with start to drop rapidly. On a 150 ish brake up cammed vts power will be lost. That setup won't be available much longer as raceland have stopped making it. So no point in testing that one.


    Th wolrace big filter can be bought for £20 delivered , I may have a play with building my own modified air box
    The holes dont block up like a traditional paper filter. As the filter dirties it looses its ability to clean the air passing through the holes rather than getting a massive reduction in airflow. The K2.65 is plenty for most VTS's as most are nowhere near 150-160 let alone 180bhp.

    Kev
  24. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #24
    Quote:
    Originally Posted by KamRacing View Post
    The holes dont block up like a traditional paper filter. As the filter dirties it looses its ability to clean the air passing through the holes rather than getting a massive reduction in airflow. The K2.65 is plenty for most VTS's as most are nowhere near 150-160 let alone 180bhp.

    Kev
    So I take it a green a some form of self cleaning filter unlike the K&N 57i ? as surely as the surface becomes covered in dirt there is less surface area for the air to pass through so efficiency will drop.(or is it different these days ?)

    On my old 1.9 gti you could easily see when the K & N 57i needed cleaning, the exhaust tip was grey when filter was clean & black rotton when the filter needed cleaning. So as the filter retained more dirt the car ran richer & scoffed more fuel .
  25. Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)
    #25
    Quote:
    Originally Posted by jonathon5 View Post
    So I take it a green a some form of self cleaning filter unlike the K&N 57i ? as surely as the surface becomes covered in dirt there is less surface area for the air to pass through so efficiency will drop.(or is it different these days ?)

    On my old 1.9 gti you could easily see when the K & N 57i needed cleaning, the exhaust tip was grey when filter was clean & black rotton when the filter needed cleaning. So as the filter retained more dirt the car ran richer & scoffed more fuel .
    I think you are missing my point. If you go past the servicing intervals for the filter then yes you can cake it with large particles of dirt and generally block up the filter. The holes are larger than paper filters. They are large so air can pass even if the filter gets dirty. They only 'filter' when they are coated with oil that is able to collect and hold the dirt as the air passes. A few flies and larger bits of crap are not going to have a massive influence unless you are going to extremes.
  26. Established Member Joined: May 2007 Near Inverurie (kind of...) Posts: 2303 Twingo Silverstone
    #26
    hks filters aren't all that for hte price I don't think. Think in tests (not sure who did them though) the apexi was much better than the hks ones for gains and filtration iirc.
  27. Infrequent Poster Joined: Oct 2010 st helens Posts: 245 2000 saxo vts
    #27
    have just done this to mine and the sound different is amazing plus it deffo pull`s harder then before.
  28. Regular Poster Joined: May 2010 skipton Posts: 401 metro rio grande pug 306 dt corsa 8v sri tuned
    #28
    grand try drilling holes in slam panel,as well make sure you definately get rid of all the swarf tho as your engine wont be happy
  29. Infrequent Poster Joined: Oct 2010 st helens Posts: 245 2000 saxo vts
    #29
    it has already got sum holes drilled in but lowerd it a bit more but just changeing the filter size is deffo a good move.
  30. Saxperience Forum Bum Joined: Mar 2007 Bristol / Wakefield Posts: 2656 Ph2 172, MK1 VTR
    #30
    I run the big Green twin cone filter with mine, It's shit hot, the front where you just have a chrome cover, is an inverted filter, so sucks twice as much in!

    I saw someone cut a hole in the bottom of the casing, and run a cold air feed from the foglight up into the bottom
  31. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #31
    just drilled the slam panel & removed the bonnet catch today.

    The car feels good, maybe a touch more throttle response
  32. Established Member Joined: May 2010 Immingham, Lincolnshire Posts: 1406 mk1 VTS (track), Mondeo Titanium X Tdci
    #32
    Quote:
    Originally Posted by jonathon5 View Post
    just drilled the slam panel & removed the bonnet catch today.

    The car feels good, maybe a touch more throttle response
    any chance of some pictures mate?

    i presume you have bonnet pins
  33. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #33
    Quote:
    Originally Posted by VTSjames View Post
    any chance of some pictures mate?

    i presume you have bonnet pins
    No I still have the normal bonnet, I removed the black safety catch that blocks the airflow .

    It has increased the flow big time
  34. Established Member Joined: May 2010 Immingham, Lincolnshire Posts: 1406 mk1 VTS (track), Mondeo Titanium X Tdci
    #34
    Quote:
    Originally Posted by jonathon5 View Post
    No I still have the normal bonnet, I removed the black safety catch that blocks the airflow .

    It has increased the flow big time
    pics of the part you have removed and the holes you have drilled, want to do something similar??

    can you serioulsy tell a difference
  35. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #35
    Quote:
    Originally Posted by VTSjames View Post
    pics of the part you have removed and the holes you have drilled, want to do something similar??

    can you serioulsy tell a difference
    Will do.
  36. Frequent Poster Joined: Aug 2010 portsmouth Posts: 796 corsa sxi saxo
    #36
    nice project mate
  37. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #37
    With the wolfrace big filter fitted to raceland (std vts with decat) 127.7 bhp

    With raceland red fitted 122.6 bhp

    Std airbox 119 bhp
  38. Frequent Poster Joined: Jul 2007 Posts: 810 2001 VTS
    #38
    Quote:
    Originally Posted by jonathon5 View Post
    With the wolfrace big filter fitted to raceland (std vts with decat) 127.7 bhp

    With raceland red fitted 122.6 bhp

    Std airbox 119 bhp
    So to clarify, your VTS with decat made 119Bhp on the standard airbox, Raceland with red filter made 122.6Bhp and with the Wolfrace made 127.7Bhp?

    Awesome dude
  39. Saxperience Forum Bum Joined: Sep 2009 Stranraer Posts: 3437 bodied VTR
    #39
    great result on the wolfrace did you notice a big difference driving it with that filter?
  40. Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)
    #40
    The raceland filter has never been the best, thats why we offer the larger green filter. Good results...
  41. Frequent Poster Joined: Jul 2007 Posts: 810 2001 VTS
    #41
    Quote:
    Originally Posted by KamRacing View Post
    The raceland filter has never been the best, thats why we offer the larger green filter. Good results...
    It's not the wrost either

    I saw a 5.5Bhp gain with a Raceland red filter over the standard airbox!
  42. Frequent Poster Joined: Apr 2010 Shavington Crewe Posts: 828 MK2 Saxo VTR 51 PLATE
    #42
    Nice results mate, good to actually see some results other than guesstimates. i ended up just buying a green filter from KAM. think i may give drilling holes in the airbox ago though not slam panel (dont like sound of that), any pics of it? Thanks H
  43. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #43
    Quote:
    Originally Posted by KamRacing View Post
    The raceland filter has never been the best, thats why we offer the larger green filter. Good results...
    I have not got a Green one to test unless someone sends me one.
  44. Established Member Joined: Oct 2008 west london Posts: 1150 rx8 (vag 1.8t project) civic type r (ep3)
    #44
    nice results definatly gettin the race land
  45. Infrequent Poster Joined: Jan 2010 Rhyl Posts: 145 gone...for now
    #45
    Do you have any pics of your setup? With the slam panel drilled/cut and the bonnet catch removed?

    I have a vts, when i got it it had a K&N filter and i channged it to the Raceland with green twin filter. I noticed a huge difference in response and sound. Was a bit tricky to secure though as you only get one bracket (which i used to secure the power steering fluid bottle lower down).
    I forgot to secure the housing before a drive to blackpool and ended up with a slighlty melted lower part as it was resting on the mani. Have zip tied it for the time being, will secue it properly tomorow. Also drilled some holes in the slam pannel but need to tidy it up as it looks ugly as fcuk!
  46. Frequent Poster Joined: Apr 2010 Shavington Crewe Posts: 828 MK2 Saxo VTR 51 PLATE
    #46
    +1 to that ^^^^^^^^^^^
  47. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #47
    Will get some pics later this week
    1 user thanked this post:
  48. Frequent Poster Joined: Jul 2007 Posts: 810 2001 VTS
    #48
    Btw, did you see any icnrease or drop in torque with the Wolfrace filter on?

    Cheers.
  49. L-plater Joined: Sep 2009 Posts: 89
    #49
    Which one wolfrace
    where can i buy?
  50. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #50
    Quote:
    Originally Posted by ers10weys91 View Post
    Which one wolfrace
    where can i buy?
    eBay £20 I used the vts kit , but the universal kit will do as you only need the filter & spacing rings that come with it.

    So i guess the filter from any kit will be ok

    Item number: 120520222252
  51. L-plater Joined: Sep 2009 Posts: 89
    #51
    Quote:
    Originally Posted by jonathon5 View Post
    eBay £20 I used the vts kit , but the universal kit will do as you only need the filter & spacing rings that come with it.

    So i guess the filter from any kit will be ok

    Item number: 120520222252
    Thanks