vtr turbo

1. beardyboy Infrequent Poster Joined: Mar 2011 essex Posts: 157 2001 saxo vtr turbo

   #1 14th March 2011, 16:19

   can i use 2 standard headgaskets together to lower the compression?
   
   or will a 1.9mm MLS headgaskets be enough?
   
   only going to run around 8-9psi
   
   best ideas anyone?
2. user_15989 Saxperience Forum Bum Joined: May 2007 Posts: 4857

   #2 14th March 2011, 18:38

   Yes you can use two headgaskets
3. beardyboy Infrequent Poster Joined: Mar 2011 essex Posts: 157 2001 saxo vtr turbo

   #3 14th March 2011, 18:48

   what will be better x2 standard headgasket? or x1 1.9mm mls headgasket?
4. user_15989 Saxperience Forum Bum Joined: May 2007 Posts: 4857

   #4 14th March 2011, 18:54

   Most people get addicted to boost and tend to up it a bit down the line. So working on that principle two of the thicker repair gaskets would be a better bet. For a DIY setup it also makes it easier to set your car up especially as your only running a mf2.
5. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

   #5 14th March 2011, 18:56

   the mls are more expensive but also safer, standard headgaskets end up being destroyed by boost over time
6. beardyboy Infrequent Poster Joined: Mar 2011 essex Posts: 157 2001 saxo vtr turbo

   #6 14th March 2011, 19:08

   7-8 psi will be my max limit, rather have it running spot on with less boost so i know im on the safe side of things..been told by some1 at gmc that a 1.9mm mls headgasket will be enough to lower compression for 8psi max. any more psi than that he said i should start thinking about running standalone management as the mf2 can only control the fuel and not all the timing ect
7. user_35090 Established Member Joined: Jun 2009 west mids (dudley) Posts: 1201 cammed 106 flatty

   #7 16th March 2011, 18:52

   Ok so heres my situation, rather put it on an open thread than make a new one covering the exact same topic.
   
   I am currently doing a turbo conversion on a mk1 vtr, i have nearly everything. but after reading this, my question is,
   
   will i need 2 x 1.9mm msl head gaskets, or just the one, which i have already bought.
   
   The head has been skimmed atleast twice before for sure. so having one head gasket isnt going to be very safe i would of thought? what would be the best option here? two head gaskets, or one head gasket along with a decomp plate?
   
   its not going to be running standalone, it will be mf2 fueled. i also have another question.
   
   basically im struggling to find a sigcon unit, i have the mf2.
   
   would disabling the lambda sensor in the exhuast stop the ECU from trying to rid the excess fuel the 5th injector will be squirting in?
   
   im nearly 100% sure i read that a while back, but it comes with disadvantages like bad fuel economy and ecu light iirc. but if it works so i can boost up to 8 psi with no hesitation then i would sacrifice that for the time being.
   
   some big questions there, but any help would be great!
8. axsaxoman Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380

   #8 16th March 2011, 19:23

   Quote:

   Originally Posted by blackie_2k5 the mls are more expensive but also safer, standard headgaskets end up being destroyed by boost over time

   mls gaskets have been std fitment by citreon since 1999 on the vts engine-- do not use any other kind if possible
   
   i still have new sig cons in stock
9. user_35090 Established Member Joined: Jun 2009 west mids (dudley) Posts: 1201 cammed 106 flatty

   #9 16th March 2011, 19:27

   how much would you part with a sigon 2 i belive i need?
   
   i have bought a gmc head gasket all ready but i need to know if i need 2...
   
   ive checked on GMC and cant find the sigcons at all..
   
   cheers
10. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

    #10 16th March 2011, 19:30

    Quote:

    Originally Posted by axsaxoman mls gaskets have been std fitment by citreon since 1999 on the vts engine-- do not use any other kind if possible i still have new sig cons in stock

    i did not know that about the vts engine actually but his is vtr anyway so...
    
    spare 99 vtr engine have has mls i noticed when getting out of rear of van........ investigation needed me thinks
11. peter91 L-plater Joined: Feb 2011 Posts: 36 2000 Citroen Saxo First 1.0, 2003 Alfa Romeo 156 1

    #11 16th March 2011, 23:43

    im looking at doing a vtr turbo conversion aswel, where did you source most of your parts from ? and how hard a conversion is it?
    
    Peter