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earlier 1.8T and big turbo

Discussion in 'A4/S4 forum(B5 Chassis)' started by macca, Mar 28, 2007.

  1. macca
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    macca Member

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    is anyone running an earlier a4 with a big turbo

    i spoke to a custom code agent and they are suggesting that i need to convert to DBW ecu and loom to get a decent map to work,

    changing ecu and loom is fairly straight forward, but i'm not sure about converting pedal box over so that i can run the electric throttle.

    anyone have any other ideas, i take custom code as knowing there stuff, so am tending to take their advice.
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  2. billybravo
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    billybravo MODERATOR

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    well im planning on using mega Squirt when i go big turbo you can buy the ecu in kit form for around 70 quid on the v3 board.
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  3. PhilR
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    PhilR One Ate Tea

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    speak to jabbasport,

    My mate has a MK2 golf with a 1.8t (agu) which is non-dbw) he had to buy a newer ecu, something to do with the file sizes needed for the big turbo remap,
    Jabbasport modified this newer ecu to work with the non-dbw engine. He will be running in excess of 400hp in the next few weeks, thats on the standard management and cable throttle
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  4. macca
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    macca Member

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    thanks PhilR, sound similar to what i'm doing, i have gone down after market ecu's before, infact i have one sitting at home in a heap, for an everyday car i think they are just too comprimising, they are more about power and on an a4 would prevent a few things from working.

    i'll give jabbasport a bell sometime and get their opinion.
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  5. docurley
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    docurley Moderator Staff Member Moderator

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    Loads of the US boys are running BT kits without changing there ECU or switching over to DBW.
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  6. macca
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    macca Member

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    i think they said it would run but would idle and run a lot smoother with the later ecu, i'm aiming for a 450bhp ish figure if i can, way too much but i've done a lot of the prep work already and can always turn the boost down.

    i need to get out and catch up with some of you guys as i've only had the car running a month, need some ideas and motivation.

    met JCB tonight who had my old engine off me, so atleast i've met someone now.
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  7. docurley
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    docurley Moderator Staff Member Moderator

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    I would run Emerald ECU which will only cost £200-£250 a remap and you could set it up for two stages boost at a touch of a button and I assume you’re talking 450bhp at the wheels and you got to be Quattro if looking for that much power.
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  8. macca
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    macca Member

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    looking at 450 at flywheel, to be honest setting my sights high, so would be happy with anything over 350 at flywheel.

    car is front wheel drive, i will be fitting a quaiffe diff, but this engine etc may make itself in to a quattro in the future, so yes it will be a handful in the current car.

    i think i am right in saying that if i install aftermarket ecu i could start loosing functionality of the instrument cluster, diagnostics, alarm/immobiliser etc etc? i had a lumentition fitted to a bmw before and had a few problems.
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  9. macattax
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    macattax Member

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    How can you turn your car into a quattro surely that would be a whole overhaul?
    Unless you mean your going to buy another car that has quattro?
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  10. docurley
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    docurley Moderator Staff Member Moderator

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    Well if you can sort me a good 6 speed box I will sort you the whole Quattro set-up if that’s of interest to you:eyebrows:
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  11. macca
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    macca Member

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    i was looking at maybe buying a b5.5 quattro at a later date and swapping the engines etc etc over.

    was wondering how viable a quattro conversion was though on a front wheel drive, i'd imagine the bodyshell or certain major panels maybe different.

    thing is, a lot of my mods so far were unplanned and unexpected situations have opend up possabilities. certainly wasn't planning the engine rebuild when i bought the car. but as the engine needed some severe work done then i though i might as well go about it the correct way.
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  12. macattax
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    macattax Member

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    So there is such a thing as a quatrro kit?
    If so show me some links and how tos!
    IS it expensive?

    Etc Etc
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  13. docurley
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    docurley Moderator Staff Member Moderator

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    I'm doing a RS4 upgrade so I will be swaping all my Quattro setup out hence I have a full system to sell or trade.
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  14. billybravo
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    billybravo MODERATOR

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    hmmmm doc i would been very keen i really would

    and do you mean everything

    i wont need the tank or exhaust just all the running gear eg hubs diffs box and shafts
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  15. docurley
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    docurley Moderator Staff Member Moderator

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    I have all the RS4 set-up bar the box so yes I have every thing to do a Quattro conversion including rear subframe.
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  16. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator

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    I looked into this,and as far as i can assertain the shells are different from 2wd to quattro.
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  17. billybravo
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    billybravo MODERATOR

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    im sure i can make it work if ppl can fit engines in the back of cars it shouldnt be to hard to mount running gear
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  18. jcb
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    jcb Active Member

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    cheers for the engine Macca, watch this space for a 2.1l IHI'd monster!

    I got a 99 B5 for the specific purpose of it having a non DBW vs DBW.
    I based this on a Jabba write up some years ago, speak to Minhea at MRC, he said that you can get more out of a DBW but there was no limitation to the two ECU's.
    plenty of early 1.8t's running silly power
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