What manifold - BTB or Raceland

  1. Saxperience Post Whore Joined: Apr 2008 Surrey Posts: 6424 Black '03 Mk2 VTS
    #1
    Got a mk2 VTS, cammed and running on a predator ecu.

    Got a piper 3" backbox and a Supersprint Decat straight through centre section.

    Been offered a BTB manifold or a Raceland manifold. Which would give more gains?
  2. Established Member Joined: Apr 2008 west Mids Posts: 1775 Mk1 White VTS
    #2
    BTB are rare and known for being the dogs bollocks but expensive.

    Raceland have stopped making their manifolds now but cheap and considered to just get the job done.

    So BTB is the better bet
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  3. Saxperience Hardcore! Joined: Oct 2005 Aycliffe Posts: 32205 Saxo VTS
    #3
    Oddly the raceland has always seemed to put out good figures. I got an extra 5 hp at the wheels (so assuming 7 ish hp at the fly) just popping the raceland on. It's a 4-2-1 arrangement which I personally feel is the better setup for mid tuned 16v engines.
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  4. Saxperience Post Whore Joined: Apr 2008 Surrey Posts: 6424 Black '03 Mk2 VTS
    #4
    Quote:
    Originally Posted by Barry123 View Post
    Oddly the raceland has always seemed to put out good figures. I got an extra 5 hp at the wheels (so assuming 7 ish hp at the fly) just popping the raceland on. It's a 4-2-1 arrangement which I personally feel is the better setup for mid tuned 16v engines.
    Hmm fair enough! Is the btb 4-1? But if the raceland gives out good power gains reckon the BTB would give out the same power gains if not more?
  5. Saxperience Hardcore! Joined: Oct 2005 Aycliffe Posts: 32205 Saxo VTS
    #5
    I've never seen a before/after with just a BTB manifold stuffed in mate so I can't really comment. I'm adverse to putting a 4-1 manifold on any moderately tuned saxo engine though. Tuning-wise, a 4-1 starts working it's magic high up the rev range (hence why you seem them almost exclusively on motorbike engines), in theory you might get a fex extra hp's at peak on the saxo but it's not optimal because it of the rev limit, mid range will very likely suffer. A 4-2-1 offers a better spread across the rev range, but unlikely to give you as much increase at peak.

    If you had a 9k race engine then yeah a 4-1 would be ideal. Of course this is all assuming the manifold have perfect welds and the engine is working perfectly.
    In a nut shell...
    4-1 might have a higher peak hp on a moderately tuned saxo, ideal for pub talk
    4-2-1 will make it quicker in the real world.
  6. Saxperience Post Whore Joined: Apr 2007 Posts: 6640 Integra DC5R & VTS
    #6
    Raceland is more than good enough for that spec imo.
  7. Frequent Poster Joined: Jan 2008 aberdeen Posts: 634 saxo vtr/205 rallye turbo
    #7
    if you go against btb i will have it pm me as im supercharging my 205
  8. Saxperience Forum Bum Joined: Dec 2008 Pontefract Posts: 4007 2010 E92 320i MSport
    #8
    If you get the BTB on the cheap then I'd buy that so you can sell it on for a profit in a few years.

    For your spec though, the raceland will be enough.
  9. Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)
    #9
    The BTB is a larger bore so ultimately designed for high power engines rather than a road engine. If you were heading towards 200bhp + then its the better option.
  10. Regular Poster Joined: Sep 2008 Posts: 449
    #10
    i will have a BTB forsale soon
  11. Saxperience Post Whore Joined: Dec 2002 United Kingdom Posts: 8390
    #11
    Raceland unless youve a silly spec. Dave P had increases across the rev range when he swapped from a BTB to a Raceland.
  12. Saxperience Post Whore Joined: Apr 2008 Surrey Posts: 6424 Black '03 Mk2 VTS
    #12
    Fitted a raceland today Jobs a good'un.
  13. Infrequent Poster Joined: Sep 2011 devon Posts: 155 Saxo Vtr 2001
    #13
    raceland i have one and its pretty decent