Trackday exhaust

  1. Established Member Joined: Oct 2008 Milton Keynes Posts: 1210 Yellow 106 Rallye
    #1
    I've got a Saxo VTS which I use for trackdays.
    It is currently standard in every way, but even though I had every intention of keeping the car standard I'm thinking about slowly tuning it up.
    I was wondering what exhaust systems out there are good and quiet?
    My engine will no doubt end up a full high comp, jenvey itb, newman ph4, bigger valved VTS, but to begin with I'm just looking at an exhaust.
    I was looking at a Saxsport but my local track is Bedford, but with their low noise limit and hearing about the problems 'Planet Sax' is having I'm having second thoughts on that.
    I was also thinking about a Magnex system as the have a centre box.
    Also wondering what manifolds are best, I was looking at BTB or supersprint
    Any advise or experience based opinions would be greatfully recieved.

    Cheers
  2. Saxperience Forum Bum Joined: Apr 2010 Telford Posts: 4501 Black corsa c SXI.
    #2
    i dont care what anyone says, a supersprint race will be too LOUD for track days, its stupidly loud when decatted.

    The best option is either going for a kam racing one ( nice tone to it, stainless, good gains etc, and its legal for track use) or go for a magnex... deep quietish tone untill you boot it.

    BTB are rare and i dont like them anyway.
  3. Established Member Joined: Oct 2008 Milton Keynes Posts: 1210 Yellow 106 Rallye
    #3
    I wasn't looking at a supersprint exhaust system, just a manifold as I got good power out of one on my old Satin Black project.
    I was looking at Kam Racing system, but it doesn't seem to have a centre box, are they quiet enough for Bedford Aerodrome?
    As I said, my main 2 concerns are

    1: Quiet enough to run on strict noise limit circuits
    2: Capable of producing good power on a good engine
  4. Saxperience Forum Bum Joined: Apr 2010 Telford Posts: 4501 Black corsa c SXI.
    #4
    Quote:
    Originally Posted by Beaniemoo View Post
    I wasn't looking at a supersprint exhaust system, just a manifold as I got good power out of one on my old Satin Black project.
    I was looking at Kam Racing system, but it doesn't seem to have a centre box, are they quiet enough for Bedford Aerodrome?
    As I said, my main 2 concerns are

    1: Quiet enough to run on strict noise limit circuits
    2: Capable of producing good power on a good engine
    kam racing have said there exhausts are quiet enough for track days.
    Best is to give him a pm.
  5. Saxperience Post Whore Joined: Jun 2006 Ramsey st marys, peterborough Posts: 8288 Saxo's, Corsa (Daily)
    #5
    Kam racing is supersprint basically, all system will be ok, just use a middle box and they be fine for track days.
  6. Established Member Joined: Oct 2008 Milton Keynes Posts: 1210 Yellow 106 Rallye
    #6
    Cool, I'll just see what middle boxes are about?
    Is the standard exhaust bore upto the job of high power?
    If so I will see if you can still get a standard exhaust from citroen or if they sell pattern parts
  7. Saxperience Post Whore Joined: Jun 2006 Ramsey st marys, peterborough Posts: 8288 Saxo's, Corsa (Daily)
    #7
    Hmm what sort of power you looking at a kam racing with middle box would be good for standard engine to about 180 n/a I believe a good save bet dude.
  8. Saxperience Forum Bum Joined: Sep 2009 Stranraer Posts: 3437 bodied VTR
    #8
    saxsport imo..
    1 user thanked this post:
  9. Established Member Joined: Oct 2008 Milton Keynes Posts: 1210 Yellow 106 Rallye
    #9
    What centre box section are you recommending?
    I'm hoping to beat my last figure of 176hp so I'm hoping for 180hp+ (solid litters, bigger valves etc)
    As I said in my original post I can do a full saxsport system as they don't have a centre box and it will (when higher tuned) fail noise at Bedford!!
  10. Established Member Joined: Oct 2007 Stoke on Trent Posts: 2130 Premier Ed. Milano Red CTR
    #10
    How about a supersprint centre section mated with the standard backbox?
  11. Saxperience Post Whore Joined: Dec 2004 Grimsby United Kingdom (England) Posts: 5489 SUPERCHARGED saxo vts
    #11
    Quote:
    Originally Posted by dannyhall View Post
    How about a supersprint centre section mated with the standard backbox?
    beanie i have a stainless scorpion mid pipe £25 (i live 20 mins from cadwell)

    i do have a little issue but i will be going back to bedford, as said there is 4 noise mic's at beddy gt and only one of them is frustrating having to lift. its not that much of an issue, id spec up whatever you want, go to the track, learn where they are and work your way up the revs.
  12. West Midlands Joined: Dec 2007 West mids Posts: 23149 Supra,civic GL
    #12
    supersprint or kam as long as centre boxed

    Planet saxx iirc is now on itbs so theres his noise issues i think a saxsport should be ok my pugsport wasnt that loud before i went on itbs

    basically though any decat boxed system will be fine
  13. Established Member Joined: Oct 2008 Milton Keynes Posts: 1210 Yellow 106 Rallye
    #13
    As I said I'll be going high comp and itb, and I don't want to have to change my exhaust once my engine is built!?
    Cool, so just basically I need any exhaust I want so long as it's got a centre box.
    Cheers sexy, but cadwell is nowhere near local to me lol!
    I'd REALLY rather not have to lift at Bedford if possible!
  14. Saxperience Post Whore Joined: Apr 2007 Posts: 6640 Integra DC5R & VTS
    #14
    My VTS with Raceland mani and Piper exhaust (centre section has a large middle box, 50mm tailpipe on backbox) was measured at 81db at Cadwell. Quiet with all the gains - ideal imo.

    Saxsports seem very loud imo.
  15. Established Member Joined: Dec 2010 Aberdeen Posts: 2129 Race: 106 Rallye 16v. Road: Mercedes Vito 120 CDI
    #15
    How about a twin box Magnex with a Magnex silenced de cat pipe for the optimum in quiet exhausts?

    I spied the de cat pipe for sale on here and almost bought it myself but dont need to now.

    http://www.saxperience.com/forum/sho...d.php?t=335147

    Also i have a twin box Magnex for sale.

    http://www.saxperience.com/forum/sho...d.php?t=363925

    Ads for a manifold you cant go wrong with a Raceland surely?
  16. Saxperience Post Whore Joined: Jun 2006 Ramsey st marys, peterborough Posts: 8288 Saxo's, Corsa (Daily)
    #16
    My car with bodies and kam racing system with middle box was 83 dB
  17. Saxperience Post Whore Joined: Dec 2004 Grimsby United Kingdom (England) Posts: 5489 SUPERCHARGED saxo vts
    #17
    I think kam is only loud when used with a straight midpipe. By the sounds of it. A local lad has a straight through and kam bb and its very lout.
  18. Saxperience Post Whore Joined: Jun 2006 Ramsey st marys, peterborough Posts: 8288 Saxo's, Corsa (Daily)
    #18
    indeed are, but a middlw box on any system will bring the noise down.
  19. Saxperience Addict Joined: Sep 2008 Suffolk Posts: 11590 ITB'd Saxo VTS & Mazda 6 MPS
    #19
    mine was 103 with no middle box
  20. Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)
    #20
    Quote:
    Originally Posted by AndySAXO View Post
    My car with bodies and kam racing system with middle box was 83 dB
    For an good quiet system this is the best on the market I think. Backing off is rubbish. You dont have to make your ears bleed to sound good and you can drive flat out at any circuit. We use the Supersprint centre pipe with silencer and our KR backbox which is a larger diameter so has more silencing material.
    You have to remember with ITB's that the induction noise will up db's on the drive by sound monitoring.

    KAM Racing backbox and supersprint mid silencer.
  21. Established Member Joined: Oct 2008 Milton Keynes Posts: 1210 Yellow 106 Rallye
    #21
    That sounds brilliant to me, I know the itbs will obviously cause most the noise but I didn't want to have a bit loud exhaust pushing the noise up.
    Was at Bedford yesterday and my brother has noise issues and when I went out with him, I have to agree, backing off is not the answer!
  22. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #22
    This the test work I carried out on the saxsport & Kam systems, also tested a

    With rolling road test.

    Page 2 for the results

    http://www.saxperience.com/forum/sho...d.php?t=359542

    I have ended up with a modified saxsport, but will look to the Kam system again once they have done their planned tweeks.
  23. Established Member Joined: May 2009 Ellesmere (Shropshire) Posts: 1044 superchared 106 gti
    #23
    the quietest performance exhaust ive heard is the magnex with twin silencer, but tbh go with something like the Kam system or saxsport!
  24. Saxperience Post Whore Joined: Jun 2006 Ramsey st marys, peterborough Posts: 8288 Saxo's, Corsa (Daily)
    #24
    With a middle box on any system you should be ok for any track day.
  25. Established Member Joined: Oct 2008 Milton Keynes Posts: 1210 Yellow 106 Rallye
    #25
    Yeah, cheers I'll start decding if I definitely want to modify my VTS and then I'll get started.

    Thank you
  26. Saxperience Post Whore Joined: Feb 2008 Southampton Posts: 8188 Astra vxr with added boost
    #26
    right i have removed my cat, the piper comes will a middle box (silencer) and running a 421 manifold. with a oval piper back box, reckon i will be ok on track days as im starting to book some and really dont want to be turned away, i only removed my cat due to the massive rattle it was giving off
  27. Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo
    #27
    Quote:
    Originally Posted by moxy89 View Post
    right i have removed my cat, the piper comes will a middle box (silencer) and running a 421 manifold. with a oval piper back box, reckon i will be ok on track days as im starting to book some and really dont want to be turned away, i only removed my cat due to the massive rattle it was giving off
    You will be fine with that setup.
  28. L-plater Joined: Feb 2011 Woking Posts: 42 VTS Track Car
    #28
    I have the full supersprint 'race' exhaust + wrapped raceland manifold, measured 95db at Cadwell which was well under their noise limit of 105db.

    It's not that loud even with my lack of interior.......
  29. Newbie Joined: Apr 2011 Posts: 22
    #29
    i personally love my rage 5; exit back box ( its pops on over run )
  30. Saxperience Forum Bum Joined: Apr 2010 Telford Posts: 4501 Black corsa c SXI.
    #30
    Quote:
    Originally Posted by Hoodedreaper View Post
    i personally love my rage 5; exit back box ( its pops on over run )
    grow up you goon.
  31. Saxperience Post Whore Joined: Jul 2011 Newcastle upon Tyne Posts: 7779 Phase 2 VTS , E61 M5
    #31
    This is my current worry

    Cammed vts, wrapped Manu, decat, straight through to a 3" piper back box

    Am planning on taking it to croft and getting it measured

    Failing that, punt my zorst and buy the kam setup with the silenced midpipe
  32. Frequent Poster Joined: Jul 2009 kelso Posts: 762 106 gti
    #32
    anybody looking for a good exhaust system i have a BTB system and BTB mani that id ahppily swap for decetn 421 mani and saxsport
  33. Established Member Joined: May 2009 cleethorpes, Lincolnshire Posts: 1830 Astra 2006 (55) 1.9 cdti 150 sri 192hp 322ftlb
    #33
    Quote:
    Originally Posted by Beaniemoo View Post
    I've got a Saxo VTS which I use for trackdays.
    It is currently standard in every way, but even though I had every intention of keeping the car standard I'm thinking about slowly tuning it up.
    I was wondering what exhaust systems out there are good and quiet?
    My engine will no doubt end up a full high comp, jenvey itb, newman ph4, bigger valved VTS, but to begin with I'm just looking at an exhaust.
    I was looking at a Saxsport but my local track is Bedford, but with their low noise limit and hearing about the problems 'Planet Sax' is having I'm having second thoughts on that.
    I was also thinking about a Magnex system as the have a centre box.
    Also wondering what manifolds are best, I was looking at BTB or supersprint
    Any advise or experience based opinions would be greatfully recieved.

    Cheers
    a supersprint or a decat exhaust will be far to loud for track days
    my advise would be this

    a straight through exhaust with a central silencer instead of a cat, a 4-2-1 manifold to keep backpressure and a resonanted backbox. something like a miltek are genuinley quiet. although a saxo vts backbox is not very restricting either you could probably use one off those with a sports centre pipe and see good gains and be well within the trackday limits
  34. Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)
    #34
    Quote:
    Originally Posted by Chris245 View Post
    I have the full supersprint 'race' exhaust + wrapped raceland manifold, measured 95db at Cadwell which was well under their noise limit of 105db.

    It's not that loud even with my lack of interior.......
    not bad
    If you cam the car though you will most likely go over 98db which is bordering on higher than most circuits. For anyone running a performance camshaft a twin box system is still the best answer.