Join Today
Results 1 to 16 of 16
  1. #1
    Senior Member
    This user has no status
    Mental Wealth Doctor's Avatar
    Join Date
    Jul 2008
    Posts
    372
    Thanks
    32
    Thanked 18 Times in 18 Posts

    Question changing block from 2.5 to T5?

    Would very much like to upgrade the block in my 855 awd lpt. there has been a oil leak down the back of the sump for a while, an im hoping its turbo return seal, and not lower sump gasket. any ways gonna be fitting a 16t and me7 manifold soon, so have a look then. i have a new clutch waiting to be fitted as mine judder's a little, but hasnt given up the ghost yet. but still with 16t prob should get clutch sorted, and if it's a take engine out job, could i replace block with t5 engine?, or is there a complete different wiring loom and major hassle involved?

  2. #2
    New Identity
    Back in an AWD....Oh the grip!
    Dangerous Dave's Avatar
    Join Date
    Dec 2006
    Location
    West Midlands
    Posts
    8,921
    Thanks
    2,491
    Thanked 2,582 Times in 2,051 Posts
    Should be the same engine, at least the main block is anyway, all the other stuff is ancillary really, and you unclip the wiring loom from the engine and it stays in the car, should have all the same sensors (M4.4 has a few extra sensors, but they're not on the engine)
    1996 Olive Green 850 AWD - Follow the Project - Forged rods, 19T, big blue injectors, 960 TB, 3.25" MAF, Ostrich, 608 binary, arduino data display, active exhaust control with Focus RS tips, 320mm front brake conversion.
    1996 Nautic Blue 850 AWD - Failed its MOT, now it's a donor for the green thing.
    2004 Sapphire Black S60 D5 - The new daily hack.

  3. #3
    Senior Member
    This user has no status
    Mental Wealth Doctor's Avatar
    Join Date
    Jul 2008
    Posts
    372
    Thanks
    32
    Thanked 18 Times in 18 Posts
    yes same block just with some cylinder liners, what extra sensor's are they? or i'll rephrase, are they important ? needed even?
    cos that sounds like a yes AWD T5 go

  4. #4
    New Identity
    Back in an AWD....Oh the grip!
    Dangerous Dave's Avatar
    Join Date
    Dec 2006
    Location
    West Midlands
    Posts
    8,921
    Thanks
    2,491
    Thanked 2,582 Times in 2,051 Posts
    The sensors aren't on the engine they're elsewhere in the engine bay, so no problems there. The best thing to do is get a V70 T5 engine, with the ecu, as these are a M4.4 too (unless you#'re getting it custom mapped) so it should drop straight in
    1996 Olive Green 850 AWD - Follow the Project - Forged rods, 19T, big blue injectors, 960 TB, 3.25" MAF, Ostrich, 608 binary, arduino data display, active exhaust control with Focus RS tips, 320mm front brake conversion.
    1996 Nautic Blue 850 AWD - Failed its MOT, now it's a donor for the green thing.
    2004 Sapphire Black S60 D5 - The new daily hack.

  5. #5
    Senior Member
    a 19t just isn't laggy enough
    p fandango's Avatar
    Join Date
    Aug 2004
    Posts
    19,785
    Thanks
    4,216
    Thanked 5,021 Times in 4,072 Posts
    personallly i'd still with the 2.5 lump & stick the ME7 manifold & 16t onto that, you've got the extra cc over a T-5 engine then, the engine i'm building up is going to be a 2.5. I have heard they have got a weaker head gasket but not sure how much of a problem it is

  6. #6
    Senior Member
    This user has no status
    Mental Wealth Doctor's Avatar
    Join Date
    Jul 2008
    Posts
    372
    Thanks
    32
    Thanked 18 Times in 18 Posts
    Nice one Bomb, Gonna get Hamish to map her, but of course i would need to drive it there.
    so v70 t5, happydays

  7. #7
    Senior Member
    This user has no status
    Mental Wealth Doctor's Avatar
    Join Date
    Jul 2008
    Posts
    372
    Thanks
    32
    Thanked 18 Times in 18 Posts
    Quote Originally Posted by p fandango View Post
    personallly i'd still with the 2.5 lump & stick the ME7 manifold & 16t onto that, you've got the extra cc over a T-5 engine then, the engine i'm building up is going to be a 2.5. I have heard they have got a weaker head gasket but not sure how much of a problem it is
    T5 has cylinder liners, making it stronger,

  8. #8
    Senior Member
    a 19t just isn't laggy enough
    p fandango's Avatar
    Join Date
    Aug 2004
    Posts
    19,785
    Thanks
    4,216
    Thanked 5,021 Times in 4,072 Posts
    Quote Originally Posted by Mental Wealth Doctor View Post
    T5 has cylinder liners, making it stronger,
    running a 16t i don't think the slightly weaker block is going to be a problem

  9. #9
    Senior Member
    This user has no status
    Mental Wealth Doctor's Avatar
    Join Date
    Jul 2008
    Posts
    372
    Thanks
    32
    Thanked 18 Times in 18 Posts
    Quote Originally Posted by p fandango View Post
    running a 16t i don't think the slightly weaker block is going to be a problem
    fair enough, and cheers save some quids that way

  10. #10
    Senior Member
    a 19t just isn't laggy enough
    p fandango's Avatar
    Join Date
    Aug 2004
    Posts
    19,785
    Thanks
    4,216
    Thanked 5,021 Times in 4,072 Posts
    Quote Originally Posted by Mental Wealth Doctor View Post
    fair enough, and cheers save some quids that way
    i'm planning on using a 2.5 & alot of people in America put the bigger turbo on so they can't be that weak

  11. #11
    ....is making a comeback
    This user has no status
    spesh's Avatar
    Join Date
    Dec 2004
    Location
    WELSH!!!!!
    Posts
    1,369
    Thanks
    21
    Thanked 37 Times in 33 Posts
    i was 300 bhp at the wheels for over a year with the 2.5 block, done some very hard miles with that, do not change the block there is no need, the rods will breal well well before the block, ive even run a gt30 with the 2.5 with no problems at all.
    keep the 2.5 it wont let you down.

  12. #12
    Senior Member
    This user has no status
    Mental Wealth Doctor's Avatar
    Join Date
    Jul 2008
    Posts
    372
    Thanks
    32
    Thanked 18 Times in 18 Posts
    Quote Originally Posted by spesh View Post
    i was 300 bhp at the wheels for over a year with the 2.5 block, done some very hard miles with that, do not change the block there is no need, the rods will breal well well before the block, ive even run a gt30 with the 2.5 with no problems at all.
    keep the 2.5 it wont let you down.
    Sound

  13. #13
    Senior Member
    This user has no status
    smithy's Avatar
    Join Date
    Apr 2006
    Posts
    7,472
    Thanks
    1,752
    Thanked 1,783 Times in 1,506 Posts
    Quote Originally Posted by Mental Wealth Doctor View Post
    Sound
    i ran a 2.5 lpt at over 300 bhp whp no problems with standard lpt gearbox

  14. #14
    Senior Member
    This user has no status
    Mental Wealth Doctor's Avatar
    Join Date
    Jul 2008
    Posts
    372
    Thanks
    32
    Thanked 18 Times in 18 Posts
    Quote Originally Posted by smithy View Post
    i ran a 2.5 lpt at over 300 bhp whp no problems with standard lpt gearbox
    looks like there is a good argument in having the 2.5, my original reasons for buying this vehicle are finally becoming true, was told on here some time ago, not to bother tuning, as the lump was weak, typical t5 snobbery lol

  15. #15
    Senior Member
    This user has no status
    smithy's Avatar
    Join Date
    Apr 2006
    Posts
    7,472
    Thanks
    1,752
    Thanked 1,783 Times in 1,506 Posts
    Quote Originally Posted by Mental Wealth Doctor View Post
    looks like there is a good argument in having the 2.5, my original reasons for buying this vehicle are finally becoming true, was told on here some time ago, not to bother tuning, as the lump was weak, typical t5 snobbery lol
    remember they used the same engine in the last v70r awd with a 19t as standard so it carnt be that weak and they map to 330bhp standard

  16. #16
    Senior Member
    a 19t just isn't laggy enough
    p fandango's Avatar
    Join Date
    Aug 2004
    Posts
    19,785
    Thanks
    4,216
    Thanked 5,021 Times in 4,072 Posts
    Quote Originally Posted by smithy View Post
    remember they used the same engine in the last v70r awd with a 19t as standard so it carnt be that weak and they map to 330bhp standard
    Volvo did experiment with a 2.5 for the original T-5 engine back in 1993, but they had problems with the wall being too thin between the cylinders which is why they lined it down to 2.3. Not sure what they did to change there minds to use it later on


 

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
This website uses cookies
We use cookies to store session information to facilitate remembering your login information, to allow you to save website preferences, to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.
     
ipv6 ready