MK5 Golf GTI
All Things Mk5 => Mk5 General Area => Topic started by: Gisli on July 28, 2016, 04:01:53 pm
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Hi guys
My wastgate exuator rod is broken on my k03 turbine and I'm going to upgrade to k04. Just to be sure. The k04 is a straight fit on to my engine. I have 2006 gti. And what injectors do I need, if I have to swap them.
Thanks
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You need more than just the turbo. This is quite comprehensive:
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fuploads.tapatalk-cdn.com%2F20160728%2F124d04c08129719da0ca10293e605705.jpg&hash=e42ca0d75969355ad3e7b4840e3ecfbbfa82b216)
You'll be better with injectors off a k04 car, so an 8P S3, mk6 R, etc. You could in theory use your k03 injectors, but you won't get full power potential, and any generic k04 conversion map will be for a car with k04 injectors.
You'll definitely need a remap, as soon after the conversion as possible. Running a k04 on a k03 map isn't a great idea.
I'd imagine most generic k04 conversion maps are classed as Stage 3, so they're designed with all the usual Stage 2+ hardware in mind as well as the turbo.
If you don't / won't have all those extra hardware upgrades, and you're essentially turning your car into a Stage 1 Edition 30, you'll want a custom map from the likes of R-Tech or Unicorn.
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Some early GTIs are not suitable for a straight turbo swap. AXXs for example need a lot more work, but I'm not sure what work that is. Make sure you know what you need before you dive in.
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Some early GTIs are not suitable for a straight turbo swap. AXXs for example need a lot more work, but I'm not sure what work that is. Make sure you know what you need before you dive in.
Really? I haven't heard that before. The AXX and BWA really aren't a million miles apart. Marginally higher compression on the AXX.
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Some early GTIs are not suitable for a straight turbo swap. AXXs for example need a lot more work, but I'm not sure what work that is. Make sure you know what you need before you dive in.
They don't need any additional work. They're basically exactly the same bar a few little internal tweaks.
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how much do k04's go for these days
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I picked up mine from a 70k ed30 for £250
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I picked up mine from a 70k ed30 for £250
I'm starting to wonder whether there'll still be any low mileage k04s around when I eventually get round to doing mine..
They're all IHI on the mk7 chassis now I think.
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I picked up mine from a 70k ed30 for £250
I'm starting to wonder whether there'll still be any low mileage k04s around when I eventually get round to doing mine..
They're all IHI on the mk7 chassis now I think.
Or go K03 hybrid. Only need to change the turbo (not injectors etc) and you get a safe 360bhp on an awesome curve and better spool than even a K04 :drool:
Pretty sure Beach Buggy turbos do it for around £600-800
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I picked up mine from a 70k ed30 for £250
I'm starting to wonder whether there'll still be any low mileage k04s around when I eventually get round to doing mine..
They're all IHI on the mk7 chassis now I think.
Or go K03 hybrid. Only need to change the turbo (not injectors etc) and you get a safe 360bhp on an awesome curve and better spool than even a K04 :drool:
Pretty sure Beach Buggy turbos do it for around £600-800
Yeah, it's still as much of an option as a k04. Think the BBT hybrids are closer to a grand though? Either way, still an option.
If BBT pulled their finger out and got the new website up I could spend hours on it researching (drooling over) the shiny new turbos...!
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Here's a recent graph of a BBT k03 hybrid with R-Tech map for those interested. It's damn impressive.
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fuploads.tapatalk-cdn.com%2F20160729%2F6ac6c5258f16edf1cfab6867c31fe67b.jpg&hash=b2e6d9cf9752707c6d51ff24cd177b98d321094e)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fuploads.tapatalk-cdn.com%2F20160729%2F06ebd9ba32573480e625d3a399ac6e2c.jpg&hash=c7fce9f0fa9cae0146ecfc3939f0544f0d811f59)
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What power figures should I get with k04 and map but on stock injectors?
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not much over the BBT hybrid id say.
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What power figures should I get with k04 and map but on stock injectors?
Around 300bhp
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Ok I picked up a original k04 from ed30 and I have BWA engine. If I'm understanding this right I should be able to bolt on the turbo without anything else. Right? I just have to change the diverter valve relocation wich are just some silicone hoses I think.
And I'm going to run on stock injectors to start with. But the car will be custum remapped straight after the swap.
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You need most of the boost pipework to fit the K04, along with the DV relocation. You will need an uprated fuel pump and a much higher rated rail PRV or you'll be limited on fuel using the standard K03 injectors. To make the most of the upgrade, you need the 3 bar map sensor and 200 bar rail pressure sensor too
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Alright I think I'm getting somwhere closer in finding the parts needed.
New gaskets, are they needed?
http://www.urotuning.com/Turbo-Install-Kit-Mk5-B6-2-0T-FSi-p/turbo_install_fsi.htm
DV relocation kit
http://www.urotuning.com/AWE-Tuning-FSI-K03-Diverter-Valve-Relocation-Kit-p/2010-11036.htm
or
http://www.urotuning.com/Unitronic-2-0T-FSI-Diverter-Valve-Relocation-Kit-p/uh004-ica.htm
Injectors/fuel upgrading kit
http://www.urotuning.com/FSI-S3-Fuel-Injector-Set-for-Big-Turbo-2-0T-FSi-p/s3-fsi-injectors-06f998036f.htm
or
http://www.urotuning.com/FSI-RS4-Fuel-Injector-Set-for-Big-Turbo-2-0T-FSi-p/079906036d_qty4.htm
or
http://www.urotuning.com/FSI-Big-Turbo-Fueling-Upgrade-Kit-Pump-and-Inject-p/fsi_fueling_kit.htm
I have not found hpfp exept in this kit,
what parts would you choose/are the correct parts and is there anything I'm missing?
Thanks for the patince
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I wouldn't buy any of them. Find used genuine items
Gaskets are good practice to change
The DV relocation is no use to you. It is for relocating the DV when using the standard K03, and the other is for newer gen TSIs with IHI turbos.
The first link are the fuel injectors you need, can be had for around £150GBP used
I would recommend buying a LOBA or APR (LOBA is a lot cheaper) HPFP rather than autotech internals. RS4 rail valve isn't mentioned, neither are the K04 sensors (the 3bar map or the 200 bar rail pressure sensor)
You would still need the K04 turbo discharge pipe and the K04 intake pipe
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ok thank you, still hard to find used parts in Iceland!
Not going to fully use the k04 yet. Thinking just about 250-ish hp so then I could maby change the injectors and hpfp later? Or are the stock internals not capaple of making that power?
Main goal now is to get the k04 on because I have had broken turbo for one year now.
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You need the car mapping for the new turbo, seems daft to get it mapped multiple times. You'd be better off fitting the injectors, all the sensors etc. and having a local tuner flash the BYD K04 software on to your ECU
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You don't need to change any sensors if your going k04, you only need to change 2 sensors I believe when you change you engine to a bwj,bhz,byd,CDL engine in a k03 car.