Mk4 golf gti 1.8t AUM project for serious bhp please help

[Quinnquince]

Oh ok thanks mate so I believe my car has the k03s do you know what I need to do to kit the k04 ?

[dom]

Oh ok thanks mate so I believe my car has the k03s do you know what I need to do to kit the k04 ?

To do it properly you'll need the turbo, manifold, oil and water lines, TIP, injectors, 3" MAF, FMIC, uprated fuel pump, silicone boost hoses, induction kit, possibly 4bar fpr and of course custom mapping. It's a lot of work considering you'll only see 30-40bhp more than a KO3s is capable of.

[mar_k]

Surely its easier and more cost effective to use one of Dans K300 turbo's?

A standard k04 would be running flat out to achieve 300bhp wouldn't it?
Is it even possible on a AUM head?

Would need a Relentless manifold to get close.

[dom]

Surely its easier and more cost effective to use one of Dans K300 turbo's?

A standard k04 would be running flat out to achieve 300bhp wouldn't it?
Is it even possible on a AUM head?

Would need a Relentless manifold to get close.

A K04 wouldn't see 300bhp, you'd need a hybrid KO4 to do that. Personally I'd look at a big turbo instead.

[barrym381]

Surely its easier and more cost effective to use one of Dans K300 turbo's?

A standard k04 would be running flat out to achieve 300bhp wouldn't it?
Is it even possible on a AUM head?

Would need a Relentless manifold to get close.

A K04 wouldn't see 300bhp, you'd need a hybrid KO4 to do that. Personally I'd look at a big turbo instead.

did tobys car not do just over 300bhp

[Quinnquince]

See looks this is brilliant do much interest and info nothing like the rx8 forum hunting I did thanks guys this is great so going on these post 1 is my aum capable of around 300bhp 2 whats the max power gain on my k03s what will I need to do to get it 3 is it really worth me looking for 300bhp my rx8 is pushing 354 wbhp so is f***ing fast in my opinion hence why it's my toy not my car but my golf is my "family car" as my misses hates the rx8 lol I have written an rx8 off twice now so no wonder she hates it but if I have a car it needs to be unique and special or I get bored and will sell it and move on I must say I like the mk4 golf and always have so now to make it mine really (I'm 23 and have had 30-40 cars now so I'm bored of changing and want to stick with the golf) I brought my rx8 when I was 17 couldn't insure it and its been garaged and worked on since I've been going through numerous motors since please give me a reason to stick with this golf thanks

[dom]

Surely its easier and more cost effective to use one of Dans K300 turbo's?

A standard k04 would be running flat out to achieve 300bhp wouldn't it?
Is it even possible on a AUM head?

Would need a Relentless manifold to get close.

A K04 wouldn't see 300bhp, you'd need a hybrid KO4 to do that. Personally I'd look at a big turbo instead.

did tobys car not do just over 300bhp

Yeah I think it did actually, but not many do.

See looks this is brilliant do much interest and info nothing like the rx8 forum hunting I did thanks guys this is great so going on these post 1 is my aum capable of around 300bhp 2 whats the max power gain on my k03s what will I need to do to get it 3 is it really worth me looking for 300bhp my rx8 is pushing 354 wbhp so is f***ing fast in my opinion hence why it's my toy not my car but my golf is my "family car" as my misses hates the rx8 lol I have written an rx8 off twice now so no wonder she hates it but if I have a car it needs to be unique and special or I get bored and will sell it and move on I must say I like the mk4 golf and always have so now to make it mine really (I'm 23 and have had 30-40 cars now so I'm bored of changing and want to stick with the golf) I brought my rx8 when I was 17 couldn't insure it and its been garaged and worked on since I've been going through numerous motors since please give me a reason to stick with this golf thanks

When you get close to the 300bhp mark standard internals sh!t themselves so you'd be wise to go for a forged setup.

Maximum power from a KO3s is around the 240bhp mark.

[barrym381]

Surely its easier and more cost effective to use one of Dans K300 turbo's?

A standard k04 would be running flat out to achieve 300bhp wouldn't it?
Is it even possible on a AUM head?

Would need a Relentless manifold to get close.

A K04 wouldn't see 300bhp, you'd need a hybrid KO4 to do that. Personally I'd look at a big turbo instead.

did tobys car not do just over 300bhp

Yeah I think it did actually, but not many do.

hoping to see 300 with the new manni and injectors when they are ready 

[Quinnquince]

Yeah thanks I want to upgrade my engine internals do you know any where I can source the parts

[beppe2672]

Integrated engineering do lots of stuff for the 1.8t, including forged con rods, you'll need the 19mm wrist pin ones. Pistons I would leave as they are, I believe aum pistons are forged anyway, I know agu and bam ones are.