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Model specific boards => Golf mk4 => Topic started by: ReadieeVTS on 19 August 2012, 10:24

Title: K04 hybrid agu
Post by: ReadieeVTS on 19 August 2012, 10:24
hi guys. im looking to go down the forged rods route for big bhp on my agu. no ive got a k04-023 turbo which would benefit from a rebuild so at the same time i could have it hybrid. now my question is what bhp Ib/ft torque figures would we be looking at in a healthy engine with the right supporting mods? im looking to sell my s14 200sx to fund this lol.

cheers Lee
Title: Re: K04 hybrid agu
Post by: turbokid23 on 19 August 2012, 10:43
Sky's the limit mate,, I would say bout 350+
Title: Re: K04 hybrid agu
Post by: Prawny on 20 August 2012, 10:39
I'd say it all depends on the rest of the engine build mate.

I run a ko4 hybrid AGU, and it's just amazing.

having an AGU, you're at a huge advantage already with large port and high compression. if you couple that with a relentless manifold and down pipe, and a decent FMIC with 2.5'' pipework, you shouldn't have any issues seeing 330bhp on a healthy engine.

my current setup makes around 300bhp on a very conservative map, due to my engine having 216k on it with stock rods! On the dyno Niki had it producing 329bhp at just 19psi, with another 4psi or more of boost possible, so i wouldn't think 345-350 is out of the question at all. These figures were without WMI also, which I've now fitted :)

Title: Re: K04 hybrid agu
Post by: jamie1989 on 20 August 2012, 11:05
Some serious power  :cool:

Those relentless manifolds are something else I really want one but its a new turbo, new downpipe, new mani and turbo intake pipe then finally another map lol
Title: Re: K04 hybrid agu
Post by: Prawny on 20 August 2012, 11:10
yea, the step up from ko3 frame to ko4 is fairly big in terms of parts you need, obviously you've already got the MAF Jamie, but you'd need bigger injectors again too, plus all new oil and water lines as well.

Plus the ko4 downpipes don't mate up directly to a golf catback system either, so it's all hasstle, but well worth it!

I took my AGU to a typical st2 spec and left it like that, and spent a few years developing the rest of the car, then when i reached a point where the chassis seemed ready, I went straight to the ko4 hybrid and havn't looked back!

i can't imagine it without the power now, it's just so addictive!
Title: Re: K04 hybrid agu
Post by: jamie1989 on 20 August 2012, 11:19
Haha I bet it is mate

One more day left in work im up R-tech  :evil:

Give me a year I might consider it, Im in the process of upgrading brakes, bushes etc at the moment which would take about a year for me considering costs and still being comfortable every month.

Would love to see what these k04'd AGU's go like mind. One day  :grin:
Title: Re: K04 hybrid agu
Post by: Prawny on 20 August 2012, 11:20
If you're anywhere near hampshire any time mate pop in and I'll take you for a spin :)

they go very well indeed!
Title: Re: K04 hybrid agu
Post by: jamie1989 on 20 August 2012, 11:37
That would be awsome mate.  :cool:
Title: Re: K04 hybrid agu
Post by: scarr89 on 20 August 2012, 16:12
If you're anywhere near hampshire any time mate pop in and I'll take you for a spin :)

they go very well indeed!

Would this work for anyone with a mk4 and who just like a ride  :lipsrsealed:

Where abouts in Hants are you Prawny?  :smiley:
Title: Re: K04 hybrid agu
Post by: Prawny on 20 August 2012, 16:41
yea, when the car is working, and I'm at home, providing I'm not drunk I'm more than happy to take any interested parties out for a ride :)

I'm in basingstoke mate.
Title: Re: K04 hybrid agu
Post by: jamie1989 on 20 August 2012, 16:42
An petrol money ofcourse  :grin:
Bet it drinks it on under boost. Mine does now!
Title: Re: K04 hybrid agu
Post by: mar_k on 20 August 2012, 17:12
yea, when the car is working, and I'm at home, providing I'm not drunk I'm more than happy to take any interested parties out for a ride :)

I'm in basingstoke mate.




Im not after a ride, Ill be working but ill be down you way wednesday and thursday,
Im delivering to a car show down there, Car fest or something like that
Title: Re: K04 hybrid agu
Post by: Prawny on 20 August 2012, 18:22
An petrol money ofcourse  :grin:
Bet it drinks it on under boost. Mine does now!

Yea, you could say that!

On track it does around 80 miles to a full tank of fuel.
Title: Re: K04 hybrid agu
Post by: Reesy23 on 21 August 2012, 14:23
An petrol money ofcourse  :grin:
Bet it drinks it on under boost. Mine does now!

Yea, you could say that!

On track it does around 80 miles to a full tank of fuel.

Just a shame it's not that fast  :smiley:
Title: Re: K04 hybrid agu
Post by: Prawny on 21 August 2012, 15:26
haha, who let you in. get back to sussex!

Damn kids.....
Title: Re: K04 hybrid agu
Post by: Reesy23 on 21 August 2012, 17:23
haha, who let you in. get back to sussex!

Damn kids.....

Only joking, Prawns goes well. K04 hybrid seems to be a winner, but it's all in the mapping.
Title: Re: K04 hybrid agu
Post by: Prawny on 21 August 2012, 19:03
Mapping is so important, it can make all the difference between a car that's obscenely quick but awful to drive, or a car that doesn't feel that quick because it's smooth and easy to drive, yet actually goes like stink!
Title: Re: K04 hybrid agu
Post by: Toby on 21 August 2012, 19:14
I still liked our little bursts on the way to bruntingthourpe nick!

Fun times!
Title: Re: K04 hybrid agu
Post by: Wazzzer on 21 August 2012, 19:44
Tobys old Mk4 has just claimed another driveshaft  :grin:
Title: Re: K04 hybrid agu
Post by: Toby on 21 August 2012, 19:55
Tobys old Mk4 has just claimed another driveshaft  :grin:

Haha! What side? Dont tell me it was the brand new one i had 2 weeks before i sold
It!
Title: Re: K04 hybrid agu
Post by: Prawny on 21 August 2012, 22:11
I still liked our little bursts on the way to bruntingthourpe nick!

Fun times!

In the damp :P was like 2 Viking warriers trying to fight in high heels!

Mine likes to eat driveshafts too. I have a huge collection of broken ones.
Title: Re: K04 hybrid agu
Post by: Wazzzer on 22 August 2012, 07:02
Passenger side mate
Title: Re: K04 hybrid agu
Post by: Toby on 22 August 2012, 07:32
 :grin: that was brand new!!  :laugh:


Time
For lsd?!?  :evil:
Title: Re: K04 hybrid agu
Post by: Prawny on 22 August 2012, 10:29
LSD just means you break more sh!t more often :P I just destroyed a pax side shaft myself last weekend.

is the white car on old 100mm flanges with the 50mm long M8 bolts? or new 108mm flanges with the 22mm long m10 bolts?

I changed from 100mm to 108 and it's been much better, but still an issue.
Title: Re: K04 hybrid agu
Post by: Reesy23 on 22 August 2012, 10:44
And don't use ECP drive shafts!