Sky InsuranceChris Nott
Page 2 of 2 FirstFirst 12
Results 41 to 66 of 66
Like Tree5Likes

Thread: 1.8t 20v 325-350hp - whats required?

  1. #41
    RIP S3dave

    Status
    Offline
    Join Date
    May 2004
    Location
    nr Glos
    Posts
    7,139
    Quote Originally Posted by antwan64og View Post
    since the gt3071r .63 turbo is capable of 32+psi this is relevant.Bill, what do you prefer/recommend for street driven cars. A bigger turbo like the GT30r at moderate boost say 18psi or a smaller ko4 running at full chat.Which one stresses the motor less?
    bigger turbo less stressed vs its later power delivery is your decision
    **http://www.facebook.com/Badger5Ltd**

    Check out the ever Growing eBay Shop>
    http://stores.ebay.co.uk/Badger-5-LTD?_trksid=p4340.l2563

    Badger 5 Ltd, Queen Annes Gate, Oldends Lane, Stonehouse, Glos, GL10 2DG


    http://www.badger5.co.uk, Tel:01453822880
    bill@badger5.co.uk
    **NEW** Badger5 Section CLICK here>> http://www.audi-sport.net/vb/213-badger-5/

  2. # ADS
    ADS
    Join Date
    Always
    Location
    Global
    Posts
    Many
     
  3. #42
    RIP S3dave

    Status
    Offline
    Join Date
    May 2004
    Location
    nr Glos
    Posts
    7,139
    Quote Originally Posted by superkarl View Post
    Whichever makes most power will stress the engine most. Cylinder pressures and stress on components isnt simply a function of boost. If they are both performing at the same Ve then stress on engine components is the same. So whilst the ko4 which will be making more boost for same power as gt30 at low boost, will be under more stress, the engine itself will be under no more or less.

    What you should ask is which turbo is under more stress, or which is performing at a higher efficiency to acheive the same result.
    unless we are talking thermal stress as opposed just delivered torque output...
    k04 looses out on that basis... small turbo working harder = more unwanted heat

    Pro's and Cons'... You cant compare k04 with GT30 framed turbo..
    **http://www.facebook.com/Badger5Ltd**

    Check out the ever Growing eBay Shop>
    http://stores.ebay.co.uk/Badger-5-LTD?_trksid=p4340.l2563

    Badger 5 Ltd, Queen Annes Gate, Oldends Lane, Stonehouse, Glos, GL10 2DG


    http://www.badger5.co.uk, Tel:01453822880
    bill@badger5.co.uk
    **NEW** Badger5 Section CLICK here>> http://www.audi-sport.net/vb/213-badger-5/

  4. #43
    1st Gear

    Status
    Offline
    Join Date
    Nov 2013
    Posts
    107
    Quote Originally Posted by superkarl View Post
    Whichever makes most power will stress the engine most. Cylinder pressures and stress on components isnt simply a function of boost. If they are both performing at the same Ve then stress on engine components is the same. So whilst the ko4 which will be making more boost for same power as gt30 at low boost, will be under more stress, the engine itself will be under no more or less. What you should ask is which turbo is under more stress, or which is performing at a higher efficiency to acheive the same result.
    yes psi is irrelevant, the air flow in CFM is relevant to power.However, a smaller turbo spinning faster can start to push warmer air through increasing risk of detonation.Also some engine configurations don't take low rpm/high torque too well (BMEP x rpm) and the delivery of the torque can be important to breaking stuff.I'm not talking about peak power

  5. #44
    solaris's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Feb 2010
    Location
    Slough, Berkshire
    Posts
    404
    I've got some 550cc injectors for sale see the classified section
    Classifieds: Genesis 550cc injectors including adapters
    If it's not longitudinal and it's not Quattro..it's not an Audi
    VCDS (VAG-COM) HEX-CAN USB cable carrying member
    2005 A4 DTM 2.0 TFSi Quattro :364Bhp/477NM - Mapped by MRC Tuning
    Hybrid K04 Project ongoing (link to Build thread)

    DMFW + Clutch For Sale



  6. #45
    1st Gear

    Status
    Online
    Join Date
    May 2013
    Posts
    236
    about £25 cheaper than backdraft sell them for then...
    s3dave likes this.

  7. #46
    Gops's Avatar
    6th gear @7000rpm

    Status
    Offline
    Join Date
    Nov 2009
    Location
    Coventry
    Posts
    2,632
    Drop a 64 in and youll be happy
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

  8. #47
    3rd Gear

    Status
    Offline
    Join Date
    Apr 2011
    Location
    Dublin, Ireland
    Posts
    611
    ^^ Don't think i would be too happy with a commodore 64 anywhere near my car.
    B5 v1 Tip, B5 Exhaust Manifold, Beach Buggy Hybrid, Pipewerx D.P and cat bypass, Miltek resonated cat back, AH Fabs v2 Intercooler, S2000 Filter, 83mm 9.5:1 CP Pistons, Brute Rods, Bosch 550cc Injectors, Oil Catch can, N249 delete, B5 Phenolic Gasket, Devils Own Water Meth Kit, Forge baffled sump.
    H&R Springs, Koni FSD Shocks, s3dave's rear tie bars, R32 ARB's, LCR Brembo's, 18" ttrs alloys, replaced all suspension bushes, 15/20mm spacers front/rear, Vibratechnics Engine Mounts.

  9. #48
    Prawn's Avatar
    My other car is a MINI!!!!

    Status
    Offline
    Join Date
    Dec 2006
    Location
    Basingstoke
    Posts
    9,318
    Would love to drive a GT30 car back to back with mine, it's been a long time since I've been out in a big turbo car, but I'm really LOVING my k04-064 at the moment, I think it's about as close to the perfect turbo as you're going to get all round.
    -------------------------------------------------------------------------------------------------

    Prawns TFSI Turbo'd 1.8T Track Car

    But I know nothing so ignore me.

  10. #49
    1st Gear

    Status
    Offline
    Join Date
    Nov 2013
    Posts
    107
    High Flow Cast Up-pipe for 1.8T FWD Golf/Jetta/Beetle/TT : atpturbo.com

    If your gt30 has a compact compressor housing couldn't you use the ATP up pipe from the above link?
    Saves having to buy a new manifold

  11. #50
    1st Gear

    Status
    Online
    Join Date
    May 2013
    Posts
    236
    mine has a T3 flange,

    also my downpipe is a V band fitment not a bolt on jobbie

  12. #51
    Prawn's Avatar
    My other car is a MINI!!!!

    Status
    Offline
    Join Date
    Dec 2006
    Location
    Basingstoke
    Posts
    9,318
    that up pipe is a neat idea, but in reality, pretty horrid.

    It adds a joint to leak / blow, and also retains the **** stock manifold which is tiny and cracks, seems like an all round compromise.

    Also, that's ko3 fitment too.

    Personally, I think you're possibly heading into the realms of 'more trouble than it's worth' with a gt30 build on the mk2.

    Fair enough if you wanted ALL the power from the word go, and set out to build an epic monster, but going down the gt30 route because you already have the turbo is still going to end up costing a fair old chunk I reckon
    -------------------------------------------------------------------------------------------------

    Prawns TFSI Turbo'd 1.8T Track Car

    But I know nothing so ignore me.

  13. #52
    1st Gear

    Status
    Online
    Join Date
    May 2013
    Posts
    236
    its an idea I'm exploring due to having the turbo, most other things that are associated with that route would be done anyway

  14. #53
    1st Gear

    Status
    Online
    Join Date
    May 2013
    Posts
    236
    do you think for the 350hp region ill need anything other than a std agu large port head, or would it be wise to upgrade the valve train?

    Im thinking of the options, using a KO4-064 or a GTx2867 turbo so it will spool earlier and then theres not a lot of need to raise the rev limit

  15. #54
    superkarl's Avatar
    MAN OF STEEL

    Status
    Offline
    Join Date
    Mar 2010
    Location
    Liverpool/Southport. N west
    Posts
    7,520
    Valvetrain would only be needed for high revs. So if you were going gt30, valvetrain might be a good idea.

    For a ko4-064 you wont need it, a stock head will be fine. Just change exh valve guides and stem seals as a service.

    Gtx2867 over a ko4-64 would depend on the setup, i.e. Housing etc. As an internal one will be no better than a ko4-64.

    P.s. I have a gtx2867, and still think the ko4 is better when comparing to an IWG varient

  16. #55
    1st Gear

    Status
    Online
    Join Date
    May 2013
    Posts
    236
    ok cheers, I've got an external tial 38mm wastegate but building a setup around that is more stupid than deciding to build one around the gt30 i have.

    Does anyone have any prices on a complete K04-064 kit for the 1.8t yet?

  17. #56
    1st Gear

    Status
    Online
    Join Date
    May 2013
    Posts
    236
    also whilst i think of it, i have a LINK G3 ecu - was on the mr2 turbo that the garrett gt30 was on, how are they considered as stand alone ecu's for the 1.8t 20v engines, mine has a 5 bar map sensor fitted too.

  18. #57
    superkarl's Avatar
    MAN OF STEEL

    Status
    Offline
    Join Date
    Mar 2010
    Location
    Liverpool/Southport. N west
    Posts
    7,520
    Quote Originally Posted by jasongtr View Post
    ok cheers, I've got an external tial 38mm wastegate but building a setup around that is more stupid than deciding to build one around the gt30 i have.

    Does anyone have any prices on a complete K04-064 kit for the 1.8t yet?
    if you wanted to step it up a notch than the ko4 you could use that wastegate, get yourself a gtx28 or the gt30, t3 or tial housing, suitable manifold etc etc, and see way in excess of 400hp. But its all extra ££££



    there isnt a kit as such, i think dan might just supply hardware to adapt and install the ko4. The turbos are only circa 500 second hand.
    this is what most are telling you, the ko4 is biggest bang for buck. Obv there is lots of custom fab like a BT build, but its cheap.


    you just need to decide whether the extra 50hp for e.g. Is worth it
    Quote Originally Posted by jasongtr View Post
    also whilst i think of it, i have a LINK G3 ecu - was on the mr2 turbo that the garrett gt30 was on, how are they considered as stand alone ecu's for the 1.8t 20v engines, mine has a 5 bar map sensor fitted too.
    stock ecus are adequate for most builds, no point in standalone

  19. #58
    1st Gear

    Status
    Online
    Join Date
    May 2013
    Posts
    236
    ok cheers, i was told by someone recently that the later ecu's iirc he said bosche 3.5 ones on the later s3 etc are the better ones to use, obviously ill need the cats coding out etc, won't need on on a 1985 mk2

  20. #59
    <tuffty/>'s Avatar
    Badger 5 Edition

    Status
    Offline
    Join Date
    Sep 2008
    Location
    Gloucestershire
    Posts
    15,461
    Quote Originally Posted by jasongtr View Post
    ok cheers, i was told by someone recently that the later ecu's iirc he said bosche 3.5 ones on the later s3 etc are the better ones to use, obviously ill need the cats coding out etc, won't need on on a 1985 mk2
    ME 7.5 is what I think you mean dude... ME7.5 is drive by wire so you need to sort out a pedal box that supports DBW... you would get hydraulic clutch capability too... bit more work to do and depends on the gear box you use of course... 02J's tend to be a little weak on high power setups... Prawn now uses an 02M six speed in his A3... 02M should fit a Mk2 I think...

    Bill uses DTA standalone ECU's but Emerald are pretty good too...

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

  21. #60
    1st Gear

    Status
    Online
    Join Date
    May 2013
    Posts
    236
    02M gearboxes are too heavy (although seem very strong compared with the O2J), and the mounts are a pain to try and get hold of for a mk2 fitment


    edit: just found that dutch build sell the gearbox mount for an O2M to fit in a mk2/3 car
    Last edited by jasongtr; 8th December 2013 at 21:09.

  22. #61
    Sam_'s Avatar
    Down under

    Status
    Offline
    Join Date
    Mar 2011
    Location
    Sydney, Australia
    Posts
    2,748
    "lag" is really overplayed by people like Clarkson on the tele, testing a high power car and then expecting it to make power at really low RPM when in reality everyone's going to drop it a peg or two.

    Here's a GT42 on a 2.0 16v in a Mk2. I bet he's gutted with the "lag":



    It's obviously a completely different ball game, I'm just saying it's a bit of a moot issue that can usually be compensated for. You're best off worrying about other things.
    Goubo1 and Vex182 like this.
    Handling mods++. GTX30 soon-ish. Hiding parts from the mrs since 2011. Build thread

  23. #62
    1st Gear

    Status
    Online
    Join Date
    May 2013
    Posts
    236
    holy F**** thats quick - anyone else think its a bit too mental not to have a rollcage?


    personally thats the way to go - haldex 4wd, but trying to find someone that can do it is difficult, unless anyone knows on here?

    i can supply the parts including a 4motion/s3 floorpan i just need someone that knows what they are doing to fab it all up

  24. #63
    Prawn's Avatar
    My other car is a MINI!!!!

    Status
    Offline
    Join Date
    Dec 2006
    Location
    Basingstoke
    Posts
    9,318
    Argh. 02J, the very sound of it makes my ears bleed.

    After 8 02J boxes i finally threw in the towel and went 02M. fecking hated the 02J's in the end.

    many of the mk2 boys seem to go 02S from the mk5, 6 speed setup on 02J mounts.

    Of all the options, I'd definitely forget the gtx28 idea, it'll still spool 1000 rpm later than the k04 064 and make similar top end to the GT30 you already have.

    The GT30 would be good, just bare in mind you need revs to make use of it, and capping it to a low figure you'd still have all the downsides with none of the gains of the epic top end.

    All comes down to budget really, plus potentially how much you can put down through 205 tyres also!
    -------------------------------------------------------------------------------------------------

    Prawns TFSI Turbo'd 1.8T Track Car

    But I know nothing so ignore me.

  25. #64
    1st Gear

    Status
    Online
    Join Date
    May 2013
    Posts
    236
    need to find someone that can haldex the mk2, why would i be limited to 205 tyres?

  26. #65
    Andrew@A.L.D's Avatar
    Cylinder Head Master

    Status
    Online
    Join Date
    Jun 2009
    Location
    Leeds
    Posts
    3,453
    Quote Originally Posted by Sam_ View Post
    Here's a GT42 on a 2.0 16v in a Mk2. I bet he's gutted with the "lag"
    58 psi of boost
    RIP S3dave/David Marshall stickers now available
    FOR SALE
    Sparco Torino 2 sport seats, None resonated Milltek exhaust, Blue Haldex controller
    Adjustable FPR from 1-5 bar, 2 sets of Unused ARP 3/8 2000 rod bolts, relentless 200 cell cat pipe, Std AGU Crankshaft. Ported & Reconditioned Cylinder head service.

  27. #66
    1st Gear

    Status
    Online
    Join Date
    May 2013
    Posts
    236
    just bought a syncro to use for the rear floor and the tunnel - 4wd mk4 project underway….

 

 
Page 2 of 2 FirstFirst 12

Similar Threads

  1. whats required to retro fit cruise control?
    By allyp in forum A4/A4 cabriolet/S4 forum(B6 chassis)
    Replies: 4
    Last Post: 28th December 2010, 15:19
  2. 288mm -> 312mm - whats required
    By SixDegrees in forum A3/S3 Forum (8L Chassis)
    Replies: 17
    Last Post: 31st August 2009, 16:59
  3. Fitting cruise to DBW 1997 1.9TDi Avant - Whats required?
    By simong in forum A4/S4 forum(B5 Chassis)
    Replies: 2
    Last Post: 18th June 2005, 17:07
  4. Yearly service. What's required?
    By Markb in forum A3/S3 Forum (8L Chassis)
    Replies: 4
    Last Post: 16th April 2005, 07:50
  5. What Oil for T Reg A3 1.6, How much required?
    By mspah in forum A3/S3 Forum (8L Chassis)
    Replies: 0
    Last Post: 14th June 2004, 07:58

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