Vtr with Vts conversion (Running slightly rich?)

1. tommy_g666 Regular Poster Joined: Jun 2009 Leicester Posts: 486 MK2 VTRS Traxo!

   #1 4th September 2011, 21:05

   I've got a vtr which has had a vts conversion. The mods I have is bmc/piper 4-1 manifold/saxsport race system/lightweight pulleys. I had a rolling road today and it made 138.8 at the fly which is about bang on. The operator said it is running slightly rich and could be the fuel pressure regulator. Has anyone else experienced this and if so what did you change to improve it? The curve just has very slight dips which he said once you cure the richness it will be alot smoother.
2. Aaron Saxperience Post Whore Joined: Jan 2008 ..... Posts: 5231 ..............

   #2 4th September 2011, 21:07

   pic of graph tom?
   who rr'd it?
   text me the pic if u wish
   
   arent u running standard fpr?
3. user_34945 Regular Poster Joined: Jun 2009 Harleston, Norfolk Posts: 469 Mk2 Saxo Vtr 16V

   #3 4th September 2011, 21:10

   my thought was that when you 16v a vtr you remove the standard 3.5bar fpr completely, whats what i did lol
4. tommy_g666 Regular Poster Joined: Jun 2009 Leicester Posts: 486 MK2 VTRS Traxo!

   #4 4th September 2011, 21:11

   Need to scan it mate. It was done by tcs Preformance on dyno dynamics. I'm not too sure what pressure reg I have. Don't know if I have the vtr one or vts.
5. user_34945 Regular Poster Joined: Jun 2009 Harleston, Norfolk Posts: 469 Mk2 Saxo Vtr 16V

   #5 4th September 2011, 21:15

   vts doesnt have one iirc atleast not where the vtr has one
6. Aaron Saxperience Post Whore Joined: Jan 2008 ..... Posts: 5231 ..............

   #6 4th September 2011, 21:17

   yea it does
   its in the fuel rail at the end....
7. user_34945 Regular Poster Joined: Jun 2009 Harleston, Norfolk Posts: 469 Mk2 Saxo Vtr 16V

   #7 4th September 2011, 21:20

   ahh fair dos, knew there wasnt one where the vtr one should be lol
8. user_34945 Regular Poster Joined: Jun 2009 Harleston, Norfolk Posts: 469 Mk2 Saxo Vtr 16V

   #8 4th September 2011, 21:20

   what pressure is it
9. Aaron Saxperience Post Whore Joined: Jan 2008 ..... Posts: 5231 ..............

   #9 4th September 2011, 21:22

   3.0 fpr standard
   
   forgot the 3.5 ones are upgraded versions
10. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

    #10 4th September 2011, 21:24

    have you plumbed a fuel return back in?
11. tommy_g666 Regular Poster Joined: Jun 2009 Leicester Posts: 486 MK2 VTRS Traxo!

    #11 4th September 2011, 21:40

    Yer it has got a fuel return. When I went to pug1off he did say the fuel lines were bogged on and looked alittle messy so whether or not it's that?
12. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

    #12 4th September 2011, 21:49

    quite possibley, ive heard a few 16v vtr's without a return plumbed in running really rich... if yours are blocked it could be that...
    
    just out of curiosity....when you removed the vtr FPR.... what did you replace it with?
13. user_34945 Regular Poster Joined: Jun 2009 Harleston, Norfolk Posts: 469 Mk2 Saxo Vtr 16V

    #13 4th September 2011, 21:54

    nothing, blocked the feed from the carbon canister as it is blocked near the wing too lol. re done the fuel lines so i had feed = pump-filter-fuel rail, return = fuel rail-pump
14. user_39613 Established Member Joined: Dec 2009 Essex Posts: 1006

    #14 4th September 2011, 23:55

    Quote:

    Originally Posted by tommy_g666 It was done by tcs Preformance on dyno dynamics..

    Theres your problem mate, i assume you mean tcs in birchanger just of m11?
    
    The guy doesn't know what he's on about, leave it how it is, its making good power and if its only slightly rich it wont cause any problems.