GolfGTIforum.co.uk
Model specific boards => Golf mk4 => Topic started by: Hulmie on 17 November 2009, 20:37
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alright lads, looking at getting a K04-001 turbo very shortly. Now with this fitted to my car i know it will need re-mapping but as for things like fuelling and charge temps would you advise changing anything else. Would i need to upgrade to a forge intercooler or could i run without for the time being
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i would save up for a faster car
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ive heard the gains over the ko3s arent that great, and it costs quite a bit more!
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Looks like a few members are a little miss informed :rolleyes:
This turbo is a direct fit.At a guess i'd say uprated fuel pump(lcr will be fine)genesis injectors and maybe a 3 inch maf housing.A fmic would also be a must imo.
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cost of these arent alot different from K03s turbo's and as patch said there are a direct fit. Power wise with the correct mods i beleive these turbo's can amke more power than a k03s
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i know theyre a direct fit, i was under the impression they are a few hundred more than a ko3s, then you have to piss around with injectors and stuff, for what kind of power over a ko3s? (its a question im not being a smart arse!) :P
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Sure they are the cheapest option to get into the 250+ bhp club,why you would want that much power in a fwd golf i wouldn't know.
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As we've seen with some of the other Agu k03's, they make almost 240bhp (nice :wink:)
Mine made 219bhp, but then again it was eating the clutch and now sllipping under the big power difference over the std k03
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I beleive you can still run your standard injectors and plus if i can source one for the same price as you would pay for a k03s then it seems to make sense in going for the bigger turbo if my plans are to go for 250bhp+
Reason = Grin factor. Plus used to have a calibra turbo running 300bhp on front wheel drive and its not as bad as what people think.
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I was gonna go with this option but couldn't find a genuine part plus then this k03s came up, off a 11k mile Octavia!
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Defo the way to 250bhp+.. :wink:
The AGU injectors are fine for the Ko3s @ 21-22psi (some people say they are not, but they dont take into account the fuel pressure scale vs boost and the increased flow, at 6000+rpm there is over 5+bar behind them) But to run a k04-001 to its optimum perfomance you will need to upgrade the injectors and fuel pump to cope and match the air volume of air higher up the band. It would also be a good idea to get some kind of upgrade charge cooling in the system, FMIC or liquid cooler.
The KO3-001 car be mapped to run lower boost to work with the stock fuel delivery, 230bhp/250+lbft all day long as there is room to play with the VE window, where the ko3s VE is ballsed out at 230bhp.
Nick
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Cheers nick, much appreciated info.
Looks like i'll hopefully sort the turbo this weekend. will be in touch after xmas about possible fitting and remapping to run stock injectors for the time being. FMIC & Bigger injectors/fuel pump will come later.