1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Welcome To LandyZone!

    LandyZone is the biggest Land Rover forum on the net. We have plenty of very knowledgable members so if you have any questions about your Land Rover or just want to connect with other Landy owners, you're in the right place.

    Registering is free and easy just click here, we hope to see you on the forums soon!

More Power Query

Discussion in 'Range Rover' started by Doo, Feb 22, 2017.

< Previous Thread | Next Thread >
  1. biketeacherdave

    biketeacherdave Well-Known Member

    Joined:
    May 22, 2014
    Posts:
    3,503
    Likes Received:
    910
    Location:
    south east london
    Drive it in 3rd like the manual says or dare I say it........your lobes might not be very loby :p:p
     
  2. discool

    discool Well-Known Member

    Joined:
    Apr 25, 2007
    Posts:
    11,999
    Likes Received:
    852
    Location:
    Sector 12 in Kent, The Garden of England
    If they are still manufacturing exhaust systems for LRs then fit a Janspeed cat-back system, and you could be surprised.
    I did 6 or 7 years ago and there was a noticeable difference, it must be just because the engine breathes better, on starting the engine straight after fitting the idle revs whent up to 2000 and stayed that for around two minutes or so then dropped back down to normal possibly the EFI ECU thought it better do something about it.

    Anyway I'm pleased, mid-range exceleration is quicker once past 30mph, although top speed hasn't changed 110 on the flat 120mph downhill when rev limiter cuts in. :(
     
  3. Saint.V8

    Saint.V8 Dyed-in-the-wool 100% RR Junkie

    Joined:
    Apr 27, 2008
    Posts:
    16,228
    Likes Received:
    2,025
    Location:
    Wiltshire - Nadder valley - its rather pretty
    As a comparison....

    The 4.0 GEMS is the one at the bottom of the punch bowl
    The 4.6 GEMS is comparable with the 4.0 THOR
    The 4.6 THOR Is king of the hill for the P38.
     
  4. martynv8

    martynv8 Well-Known Member

    Joined:
    Mar 19, 2012
    Posts:
    2,258
    Likes Received:
    123
    Location:
    Sheffield
    I'd go with that, but only test driven a 4.0 gems so never compared a 4.0 thor to my 4.6 thor.
     
  5. cooltide

    cooltide sheep fancier

    Joined:
    Sep 24, 2014
    Posts:
    2,572
    Likes Received:
    622
    Location:
    Over the hill
    Thor is great for torque
    As for a 4 litre gems, not worth putting lots of money in to try and match a 4.6 unless you need a new cam and you need a new exhaust. Chipping is crazy money and will make very little difference.
    Trouble with more power is it is very moreish like heroin.
     
  6. wil2813

    wil2813 Well-Known Member

    Joined:
    Feb 14, 2010
    Posts:
    2,308
    Likes Received:
    94
    Location:
    the bit inbetween j10-j11 m6,west mids.
    they are all slow compared to a l322
     
< Previous Thread | Next Thread >