708's unmapped for 4 weeks will it be okay?

1. user_53934 Regular Poster Joined: Jul 2011 Leeds Posts: 285 Saxo VTS

   #1 16th January 2013, 07:41

   Getting my 708's fitted on the 2nd will it be okay to run them unmapped until the 28th of feb?
2. choko_h Infrequent Poster Joined: Jun 2011 Bulgaria Posts: 130 Forged Citroen Saxo VTS 16v mk2 (2002)

   #2 16th January 2013, 08:02

   Not a problem at all dude. Just you won't feel that much power increasing as after the ECU get mapped.
   
   Cheers!
3. AlexBp West Midlands Joined: Dec 2007 West mids Posts: 23149 Supra,civic GL

   #3 16th January 2013, 08:07

   Dont get a map buy my mapped ecu
   
   Well if your 3 plugger
   225 posted mapped by wayne for TOAD many years ago and ean my car for a few k
   
   Half the price of a map
4. Jon_Doe Regular Poster Joined: Jan 2007 Bathford.com Posts: 319 Saxo VTS Mk1

   #4 16th January 2013, 08:35

   Unmapped you will find it a bit empty and possibly struggling with idle. Surprisingly I found mine was overfuelling at idle. I found that getting clean air rather than from the rocker cover really helped (so I used a breather instead of that link pipe that runs from the rocker back to the air box manifold). It especially helps the stall coming down from high revs.
   
   In the mid range of the revs the ecu responds to lambda, so although its not mapped, it does at least fuel 'ok', once you get over 5250 revs it gets lean where you just have to realise things will run hot, so try and keep away from that for long periods (such as a month).
   
   Buying the second hand ECU sounds ideal.
5. user_53934 Regular Poster Joined: Jul 2011 Leeds Posts: 285 Saxo VTS

   #5 16th January 2013, 08:50

   Quote:

   Originally Posted by AlexB Dont get a map buy my mapped ecu Well if your 3 plugger 225 posted mapped by wayne for TOAD many years ago and ean my car for a few k Half the price of a map

   Im a single plugger mate, crossover but cheers anyway pal
6. AlexBp West Midlands Joined: Dec 2007 West mids Posts: 23149 Supra,civic GL

   #6 16th January 2013, 08:51

   Ah bugger
   Worth a punt lol
7. user_53934 Regular Poster Joined: Jul 2011 Leeds Posts: 285 Saxo VTS

   #7 16th January 2013, 08:53

   Quote:

   Originally Posted by Jon_Doe Unmapped you will find it a bit empty and possibly struggling with idle. Surprisingly I found mine was overfuelling at idle. I found that getting clean air rather than from the rocker cover really helped (so I used a breather instead of that link pipe that runs from the rocker back to the air box manifold). It especially helps the stall coming down from high revs. In the mid range of the revs the ecu responds to lambda, so although its not mapped, it does at least fuel 'ok', once you get over 5250 revs it gets lean where you just have to realise things will run hot, so try and keep away from that for long periods (such as a month). Buying the second hand ECU sounds ideal.

   Orite mate so basicly it will have a shit idle and try stay away from been over 5250 rpm?
8. Aaron Saxperience Post Whore Joined: Jan 2008 ..... Posts: 5231 ..............

   #8 16th January 2013, 09:24

   Be alright.
   I know people still on standard Map with cams for years. (J4 engine. )
9. MartinObviously Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge

   #9 16th January 2013, 09:29

   Yeah it'll be fine, I too know people who run cams unmapped and their engines are fine.
10. KamRacing Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)

    #10 16th January 2013, 10:46

    You can drive it but I would not drive it hard or at high rpm. Personally I would not want to kill an engine by running lean.
11. user_34323 Saxperience Post Whore Joined: May 2009 ringwood Posts: 6305 suzuki swift 1.2 sz3

    #11 16th January 2013, 11:04

    Retard the exhaust cam.
12. Jon_Doe Regular Poster Joined: Jan 2007 Bathford.com Posts: 319 Saxo VTS Mk1

    #12 16th January 2013, 11:32

    Quote:

    Originally Posted by wadoryu Retard the exhaust cam.

    This reduces overlap so will help your idle.
    
    What Kam said, overall you have to take it easy, you will be unimpressed at how it doesn't go once cammed before a remap! When its done its great (until your mot).
13. luthor1 Established Member Joined: Jan 2008 Posts: 1802

    #13 16th January 2013, 12:03

    retarding the exhaust cam means it opens later, which means it closes late, which means it's still open when the intake opens, which INCREASES overlap... confused?

    2 users thanked this post: Jon_Doe, user_34323
14. Jon_Doe Regular Poster Joined: Jan 2007 Bathford.com Posts: 319 Saxo VTS Mk1

    #14 16th January 2013, 13:18

    Quote:

    Originally Posted by luthor1 retarding the exhaust cam means it opens later, which means it closes late, which means it's still open when the intake opens, which INCREASES overlap... confused?

    Doh- could it be bought forwards slightly to avoid it?
    To the op, you are probably best waiting until its cammed rather than making 2 adjustments.
15. KamRacing Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)

    #15 16th January 2013, 14:10

    On a otherwise standard car you time the cams on the standard marks.