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Yes,

Quite a lot; TT/S3 oil/water lines (they are longer), TT/S3 manifold, obviously the turbo, new downpipe (stock or custom depending on how flush you are), the larger TT/S3 turbo intake pipe, larger injectors/4 bar FPR / Cupra R fuel pump, larger MAF pipe (VR6 with your stock element), new MAP, better cooling (either twin side mount intercoolers, or a FMIC). Oh, and maybe a new clutch / flywheel as the stock gti one will slip (as mine did!)

It's possible, and if not your only car then worth having a go at yourself if you have time and are mechanically competent. I didn't have the time or space so had mine fitted, but would have liked to have done it myself!
 

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with the k04-001 you wouldnt need to replace the downpipe but everything else would need the upgrade ive been told. and uses the same manifold.
Just dont get a one from ebay as they are no better than a fancy shaped paper weight.
i was reffering to the one from backdraft mate, what do you think of these and are thy just k03 hotside and k04 compressors as they only put out as much as k03 hybrids. but brand new and not just reworked?
 

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what sort of money do you think it mite cost? thanks dave
If you've got access to a donor car, then it might be cheaper to swap the entire engine than my conversion, when you piece together bits. Still, I wanted to stay with my engine as I know how the servicing has been (every 5k), and I still have the bonus of the AGU engine with it's forged internals and bigger port head, which should help with longetivity.

On my conversion, I bought the bits over 2-3 years, and got many bargains, but they went down the drain with the fitting cost, and new clutch, etc.

As an example, I went overboard and bought a Pro-alloy FMIC - was about £700. See what I mean about spending as little or as much as you want on this conversion...[:S]

Some say it isn't worth fitting a K04 for the cost, but for me, I weighed up the cost of having a K03S fitted, plus MAP, and I thought that would give me maybe another 30bhp over the 191bhp on my K03. If having the K04, you still need a new MAP, and turbo fitting, plus more, so I felt a step from K03 to K03S would make me feel slightly cheated, whereas to 260-270 (maybe optimistic) on a K04 would be about as far as I would want to go with the car without spending stupid amounts of money.

Everyone will say why not GTRS or IHI, but that really is expensive...
 

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what sort of money do you think it mite cost? thanks dave
If you've got access to a donor car, then it might be cheaper to swap the entire engine than my conversion, when you piece together bits. Still, I wanted to stay with my engine as I know how the servicing has been (every 5k), and I still have the bonus of the AGU engine with it's forged internals and bigger port head, which should help with longetivity.

On my conversion, I bought the bits over 2-3 years, and got many bargains, but they went down the drain with the fitting cost, and new clutch, etc.

As an example, I went overboard and bought a Pro-alloy FMIC - was about £700. See what I mean about spending as little or as much as you want on this conversion...


Some say it isn't worth fitting a K04 for the cost, but for me, I weighed up the cost of having a K03S fitted, plus MAP, and I thought that would give me maybe another 30bhp over the 191bhp on my K03. If having the K04, you still need a new MAP, and turbo fitting, plus more, so I felt a step from K03 to K03S would make me feel slightly cheated, whereas to 260-270 (maybe optimistic) on a K04 would be about as far as I would want to go with the car without spending stupid amounts of money.

Everyone will say why not GTRS or IHI, but that really is expensive...
would the IHI need more than just a manifold plus all the other bits included in a k04 conversion? internals are rated to 350hp on standard engine arnt they? was at awesome the other day ant mapped k04 tt putting out 260hp tops and a jabba IHI tt hitting 375hp? so it would be better as you always want more power
 

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As far as I know, the IHI would need practically every similar part listed for a K04 conversion, just that only the specialists sell the custom parts, so there is a premium on every piece, and chance of finding them used is slim. A reliable IHI engine needs new pistons & rods as far as i know. Look for posts by a guy on here called Wilko - he's had so many variants of big power 1.8t set-ups.

There's no way a TT with 375 bhp would last long on standard internals. Please search - a standard AGU block will not be phased by a K04 conversion at 260-270bhp, but an IHI on standard internals at 375 bhp...absolute timebomb.
 

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Dave J talks sense, theres also a lot of reputable tuners out there who say for a street car, one you get in a drive every day in the real world, a K04 is a better more driveable conversion than an IHI or a garret, its basically an OEM upgrade afterall

You wont win the willy waving competition at a rolling road day but trust me, itll shift plenty for a FWD car, especially on that in all honest, aint exactly lightweight or nimble.

Mine would stick tot he back of a mk2 focus RS with no problems. sure dave can couch for similar results in his.
 

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Dave J talks sense, theres also a lot of reputable tuners out there who say for a street car, one you get in a drive every day in the real world, a K04 is a better more driveable conversion than an IHI or a garret, its basically an OEM upgrade afterall

You wont win the willy waving competition at a rolling road day but trust me, itll shift plenty for a FWD car, especially on that in all honest, aint exactly lightweight or nimble.

Mine would stick tot he back of a mk2 focus RS with no problems. sure dave can couch for similar results in his.
Don't do much baiting in mine, but certainly confused some guy in his M3, and stuck on the tail of a Boxster S. £2k of 'an old golf' vs some chump in his financed posing pouch is worth it every time.

Traction is an issue - my next thing to do is to have my Quaiffe diff fitted...
 
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