map sensor for turbo conversion

1. sliderz Frequent Poster Joined: Jun 2007 warrington Posts: 722 saxo vts turbo

   #1 7th September 2009, 14:04

   hi what do you guys use for the map sensor i see there are 2 bar 2.5 and 3 bar. its a 16 v vts engine.
   
   what bar is the one all ready on the car
   
   what do they do?
   
   why do you need bigger for turbo cars and were can i get one or what have you used
   thanks
2. ryanmt Established Member Joined: Oct 2004 Warrington Posts: 1987 AX VTS 57 3.0 TDI A5

   #2 7th September 2009, 14:20

   the standard one is one bar, it wont read boost.
   
   What management you using, and what boost are you running.. thats what will matter!

   1 user thanked this post: sliderz
3. sliderz Frequent Poster Joined: Jun 2007 warrington Posts: 722 saxo vts turbo

   #3 7th September 2009, 14:25

   hi the plan is getting the pedietor ecu but till i buy one of them was gonna run it on the standard ecu with bigger injectors boost wize 10 to 12 psi when all fitted but for now low boost till i get the ecu sorted
4. ryanmt Established Member Joined: Oct 2004 Warrington Posts: 1987 AX VTS 57 3.0 TDI A5

   #4 7th September 2009, 14:28

   unless youve got the standard ecu remapped it wont run atall, no way. Not unless you run a 5th injector and mf2 and do it that way.
   
   http://cgi.ebay.co.uk/Saab-900-Turbo...d=p3286.c0.m14
   
   will work for a bar of boost

   1 user thanked this post: sliderz
5. sliderz Frequent Poster Joined: Jun 2007 warrington Posts: 722 saxo vts turbo

   #5 7th September 2009, 14:33

   damn. dont want to really buy the mf2 then latter buy the preadtor. will it run with boost at say a silly 2 psi till i sort the ecu . this turboing side of things is starting to get confusing for me .
   
   dont know how to set low boost
   dont know were all the vacum pipes go
   thought get bigger injectors would be ok instead of mf2
   dont want to get it running and realise the boost is to high
   thought i was doing well but think i need to do a lot more reading up
6. ukgaz Frequent Poster Joined: Dec 2008 Maidenhead Posts: 683 Saxo VtR '52

   #6 7th September 2009, 14:57

   Think Pred incs. MAP sensor

   1 user thanked this post: sliderz
7. sliderz Frequent Poster Joined: Jun 2007 warrington Posts: 722 saxo vts turbo

   #7 7th September 2009, 15:10

   gaz did you get the pred ?
   how are you running yours .
   
   this is the bit i dont understand how do you get the car once turboed to get it mapped if it wont run on standard ecu
8. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

   #8 7th September 2009, 16:50

   keep your eyes on ebay mate they pop up regularly, 2.5 bar, go for cheap, as for mapping somoetimes you can drive, some trailor, or if you buy a wideband and get the pred you can have it mapped over the internet providing you have a laptop
9. sliderz Frequent Poster Joined: Jun 2007 warrington Posts: 722 saxo vts turbo

   #9 7th September 2009, 16:57

   Quote:

   Originally Posted by blackie_2k5 keep your eyes on ebay mate they pop up regularly, 2.5 bar, go for cheap, as for mapping somoetimes you can drive, some trailor, or if you buy a wideband and get the pred you can have it mapped over the internet providing you have a laptop

   ok cool thats really helpful thanks blackie_2k5
10. ukgaz Frequent Poster Joined: Dec 2008 Maidenhead Posts: 683 Saxo VtR '52

    #10 7th September 2009, 18:41

    Quote:

    Originally Posted by sliderz gaz did you get the pred ? how are you running yours . this is the bit i dont understand how do you get the car once turboed to get it mapped if it wont run on standard ecu

    Not yet, just having to sort out compression currently. Once done, put everything together. give luthor a shout and trailer it down. Got friends with pickups, trailers etc so getting it over to theirs is not a problem, plus he's only about 20miles from me
11. sliderz Frequent Poster Joined: Jun 2007 warrington Posts: 722 saxo vts turbo

    #11 7th September 2009, 19:37

    its miles from me so not sure what to do. wonder if he can send one all ready mapped for a turbo i know it wont be hundred percent but will at least get me to his to fine tune it
12. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

    #12 7th September 2009, 20:02

    Quote:

    Originally Posted by sliderz its miles from me so not sure what to do. wonder if he can send one all ready mapped for a turbo i know it wont be hundred percent but will at least get me to his to fine tune it

    if you send him your spec im sure he'd be able to give you a base map to goet you down there