Sky InsuranceMonster Motorsport
Results 1 to 18 of 18
  1. #1
    1st Gear

    Status
    Offline
    Join Date
    Jan 2003
    Location
    UK
    Posts
    289

    Upgrading internals

    Right, so am considering going BT in the future and since JBS have a GT28RS kit available, I'm tempted to go that route.

    But before going BT I want to uprate my internals, rods and valves i think should be sufficient.

    JBS sell their own 'H-Beam Con-Rods' and stainless steel valves - anyone got any comments on this approach? They also do forged pistons but I think the S3/TT pistons are good enough...

    Dunc

  2. # ADS
    ADS
    Join Date
    Always
    Location
    Global
    Posts
    Many
     
  3. #2
    clived's Avatar
    Reverse Gear

    Status
    Offline
    Join Date
    Apr 2003
    Location
    Hertfordshire
    Posts
    27

    Re: Upgrading internals

    Why do you think you need to upgrade the internals? Or do you just want to in order to be on the safe side?

    Cheers, Clive

  4. #3
    1st Gear

    Status
    Offline
    Join Date
    Jan 2003
    Location
    UK
    Posts
    289

    Re: Upgrading internals

    Well to be on the safe side is my overriding reason. Wilkos IHI Golf threw a rod in the last few days, although I think the 150 unit is not as strong internally as the TT/S3.

    S3 looks like its staying for a while as a daily driver so want to do it right first time if I go BT...

    Dunc

  5. #4
    1st Gear

    Status
    Offline
    Join Date
    Jan 2003
    Posts
    104

    Re: Upgrading internals

    Mine went pop last night.
    Same rods as later s3/tt's.
    I had rods going in next week, along with a big port head, including uprated valves etc. JBS are doing the work.
    If it had lasted another 4 days, I'd not have had to shell out for a new block and crank.
    Good job I know where to source all the bits myself at much better prices.

    I was running 1.6 bar peak boost and 1.45 bar at 7500rpm. I tend to rev it a lot, and its had 67K hard miles. Chipped at <100 miles, and 20k miles on big turbo.

    I was unlucky, but I'd planned to uprate internals for good reason. Nice thing about the 1.8T is it's a cheap engine to replace.

  6. #5
    1st Gear

    Status
    Offline
    Join Date
    Jan 2003
    Location
    UK
    Posts
    289

    Re: Upgrading internals

    Bad luck about the car going now. Turbo okay though?

    Which valves are you using?

    Dunc

  7. #6
    1st Gear

    Status
    Offline
    Join Date
    Jan 2003
    Posts
    104

    Re: Upgrading internals

    Turbos fine. Rod 2 snapped, and punched a big old hole in the block and sump. Low down, so it missed all the expensive hardware.

    I'm using the same valves that JBS spec. I just sourced them myself from the US.

  8. #7
    1st Gear

    Status
    Offline
    Join Date
    May 2004
    Location
    Billericay, UK
    Posts
    278

    Re: Upgrading internals

    Really sorry to hear the news - typical about it going just before the upgrade.

    I am looking to upgrade to 300 ish BHP with a GT28RS on standard internals - I think I will try and budget for some stronger internals within the next few months - is it just the bottom end that is at risk if the revs are kept the same?

    Cheers,

    Greg

  9. #8
    5th Gear

    Status
    Offline
    Join Date
    Feb 2004
    Location
    UK
    Posts
    1,320

    Re: Upgrading internals

    dunc,go for rods and valvegear,should be good for 400bhp.

  10. #9
    1st Gear

    Status
    Offline
    Join Date
    Jan 2003
    Posts
    104

    Re: Upgrading internals

    Valves drop from repeated high rev abuse.
    If a rod goes, piston hits head, and bends valves, rod flails around and holes block and sump, + probably wrecks crank
    If you're going to do it, I'd do the whole job. If you source the bits yourself from the US, it's nowhere near as bad as you think.

  11. #10
    RichA3Turbo's Avatar
    ...Watching you!

    Status
    Offline
    Join Date
    Jan 2003
    Location
    Earlsfield, London
    Posts
    5,087

    Re: Upgrading internals

    Blimey John, was reading this on UK-MKIVS last night. Good job you have all the other bits ready to go in teh car and it wont cost you MUCH more... Just inconvenient though i bet.

    Looking forward to seeing it come back stronger and faster than ever!

    Rich

  12. #11
    Guest

    Re: Upgrading internals


    [ QUOTE ]
    If you're going to do it, I'd do the whole job. If you source the bits yourself from the US, it's nowhere near as bad as you think.

    [/ QUOTE ]

    Exchange rate is in our favour so I too would advise you to shop stateside for these bits at the moment.

  13. #12
    1st Gear

    Status
    Offline
    Join Date
    Jan 2003
    Location
    UK
    Posts
    289

    Re: Upgrading internals

    JBS will only fit (for me anyhow) if I buy from them - thats their Rods and Valves.

    My engine also burns quite a bit of oil as it is so will get rings seen to also if I go this route although thats not a cost thing (1 litre for 2k miles)

    Now all that remains is the mental block that says "is it worth it"..

    Dunc

  14. #13
    1st Gear

    Status
    Offline
    Join Date
    Dec 2004
    Location
    North London
    Posts
    209

    Re: Upgrading internals

    how much bhp did your golf have if you dont mind me asking?
    I want to get about 300bhp out of my 1.8TQ but not sure if the internals will take it, i have heard there ok for up to about 350..

  15. #14
    RichA3Turbo's Avatar
    ...Watching you!

    Status
    Offline
    Join Date
    Jan 2003
    Location
    Earlsfield, London
    Posts
    5,087

    Re: Upgrading internals

    [ QUOTE ]
    how much bhp did your golf have if you dont mind me asking?
    I want to get about 300bhp out of my 1.8TQ but not sure if the internals will take it, i have heard there ok for up to about 350..

    [/ QUOTE ]

    300bhp wont break anything internally. You would only be runing around 1.1-1.2 bar on a IHI to achieve that power which is not very stressful on the engine.

  16. #15
    1st Gear

    Status
    Offline
    Join Date
    Dec 2004
    Location
    North London
    Posts
    209

    Re: Upgrading internals

    thats what i like to hear :-) what is the most bar + bhp i could run reliably?

  17. #16
    1st Gear

    Status
    Offline
    Join Date
    Jan 2003
    Posts
    104

    Re: Upgrading internals

    I was running 1.45 bar at 7.5K rpm on a small port head, so aprox 250g/s.
    With the water injection, I was running a consistent 15 deg before tdc, on optimax. I think thats what killed it.
    I'd got an extra 7 degrees of timing across the board over standard 98 timing, and it gave me 30lb ft over what I had on standard timing.
    I had 335lbft at JBS and stealth before I upped the timing.

  18. #17
    1st Gear

    Status
    Offline
    Join Date
    Dec 2004
    Location
    North London
    Posts
    209

    Re: Upgrading internals

    really its the high revving and too advanced timing that killed your engine isnt it?

  19. #18
    1st Gear

    Status
    Offline
    Join Date
    Jan 2003
    Posts
    104

    Re: Upgrading internals

    No
    it's taking a standarsd engine to uver double it's original torque and power ratings, and then ragging the crap out of it for 67k miles that killed it.
    If you tune your car, this may happen to you.
    I know of someone who bent two rods in 20k miles with just a chip. But he drove like a moron.

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO