106 S2 rallye inlet manifold

  1. L-plater Joined: Nov 2010 derbyshire Posts: 54
    #1
    I have a 2001 y reg vtr with the 98bhp engine I've been told if I fit a S2 rallye inlet manifold I'll see a power gain all be it small is this true? Is it the manifold I need or the throttle body? Or both?
    Cheers guys
  2. Saxperience Post Whore Joined: Jan 2007 Shropshire Posts: 9994 Moonstone Blue 106 GTi
    #2
    won't fit port spacing is different
  3. Saxperience Post Whore Joined: Apr 2007 Posts: 6640 Integra DC5R & VTS
    #3
    As above, port spacing on 98bhp engine is different.

    Even if it did fit, wouldn't make any difference.
  4. L-plater Joined: Apr 2010 oxford Posts: 82 black mk2 saxo vtr
    #4
    I looked in to doing this but the ports are different, you would need to make a new manifold. The power gain would be a few hp but you would also need a cam, the s2 rallye had a better cam aswell as the bigger inlet.
  5. L-plater Joined: Nov 2010 derbyshire Posts: 54
    #5
    Would the s2 rallye cam fit my engine the 98bhp silvertop?
  6. L-plater Joined: Apr 2010 oxford Posts: 82 black mk2 saxo vtr
    #6
    No the mk2 has a slightly different head, but you could get a piper or newmans PH3 cam?
  7. Saxperience Post Whore Joined: Apr 2007 Posts: 6640 Integra DC5R & VTS
    #7
    Quote:
    Originally Posted by Rallypvc View Post
    Would the s2 rallye cam fit my engine the 98bhp silvertop?
    The S2 Rallye camshaft is for non-roller rocker gear (older black top engines). The 98bhp VTR engine has roller rocker gear.
  8. Saxperience Post Whore Joined: Mar 2009 Uppingham, Rutland Posts: 9569 mk1 JP4'd VTR, '16 Fabia Monte Carlo
    #8
    if anything you'd wanna fit the S1 inlet not the S2 but as already said heads are different

    but...a few people fit the rallye cylinder head so you can fit the inlet and with a ph2 cam and a remap looking at about 120bhp
  9. L-plater Joined: Apr 2010 oxford Posts: 82 black mk2 saxo vtr
    #9
    Quote:
    Originally Posted by jeffchiz View Post
    if anything you'd wanna fit the S1 inlet not the S2 but as already said heads are different

    but...a few people fit the rallye cylinder head so you can fit the inlet and with a ph2 cam and a remap looking at about 120bhp
    Agreed the s1 inlet gas a bigger throttle body and will fit.
  10. Saxperience Post Whore Joined: Mar 2009 Uppingham, Rutland Posts: 9569 mk1 JP4'd VTR, '16 Fabia Monte Carlo
    #10
    also the actual inlet is about 3 times as big lol because its metal it sounds awesome and looks the dogs danglys
  11. Established Member Joined: Jun 2008 nuneaton Posts: 1796 LY R26
    #11
    youd see more than 120bhp with a remap jeffchiz

    i made 120bhp without a remap on my vtr and that ha the s1 inlet s1 head and ph2 cam
    also a guy on rallyeregister made 130bhp on his quicky, he used the ph2 cam, complete s1 ecu head whole upper assembly, had a small amount of work on the head just polished the ports and opened them up a bit, he kept the 1400quicky bottom end then had remap by wayne at chipwizards and mae 130odd bhp iirc

    how ever that set up is a lot of effort to do
  12. Established Member Joined: Jun 2008 nuneaton Posts: 1796 LY R26
    #12
    i tell a lie.....

    just found the guys thread, he made 125.9bhp at 7900rpm lol still mental for a 1400
  13. Saxperience Post Whore Joined: Mar 2009 Uppingham, Rutland Posts: 9569 mk1 JP4'd VTR, '16 Fabia Monte Carlo
    #13
    bloody hell a 50bhp gain!!
  14. Frequent Poster Joined: Apr 2009 Weert NL Posts: 713 Citroen Saxo 1.4 VTS MK2 2000 TU3JP
    #14
    Quote:
    Originally Posted by vtr_chris90 View Post
    i tell a lie.....

    just found the guys thread, he made 125.9bhp at 7900rpm lol still mental for a 1400
    wow that is a nice gain, can you share his thread?
  15. Saxperience Post Whore Joined: Aug 2008 The wrong carpark Posts: 5152 Xantia 1.9TD
    #15
    guessing its impossible to fit the ph1 head to a ph2 98bhp bottom end??
  16. Saxperience Post Whore Joined: Mar 2009 Uppingham, Rutland Posts: 9569 mk1 JP4'd VTR, '16 Fabia Monte Carlo
    #16
    Quote:
    Originally Posted by chinkostu View Post
    guessing its impossible to fit the ph1 head to a ph2 98bhp bottom end??
    no as i said earlier people have done it i THINK its easy enough mate
  17. Established Member Joined: Jun 2008 nuneaton Posts: 1796 LY R26
    #17
    Quote:
    Originally Posted by kistigun View Post
    wow that is a nice gain, can you share his thread?
    yer here it is.....
    http://www.106rallyeforum.com/forum2...ad.php?t=58482

    hope the guy doesnt mind, havnt spoke to him for a hwile lol


    Quote:
    Originally Posted by chinkostu View Post
    guessing its impossible to fit the ph1 head to a ph2 98bhp bottom end??
    it will fit mate, i mean i know the 98bhp bottom end uses flat pistons as opposed to the early ones that had slightly dished/domed pistons iirc
    so if your fiting with the standard si/rallye cam it will be fine, if your fitting a aftermarkt cam though clearence may be close i think tbh depending on the cam anyway

    but either of the rallye or xsi heads will be fine mate

    you just need to make sure you have the rallye/xsi injectors as they are bigger in size than the standard vtr ones so the vtr injectors wont sit right
    also you may need to convert to ht leads and coil on side of the head as i found mine was developing a slight missfire with the standard rail
    if you want more pics and info have a search through my thread history and you will see my old vtr progress i had loads of pics and info in there when i changed my head and cammed it