Golf 4 GTI engine change

[Chris.]

I really cant see there being a difference between the hardware of the 2 engine blocks, especially at standard level or even stage 1.  only issue I could see if the VVT throwing a fault code up with having no VVT on a AGU head.  Only other thing is rocker covers would have to be changed to allow push fit coilpacks or bolt down.

[Chris.]

AUM is perfectly fine for any stage 2 car.  Until you start yo go over 300bhp, i highly doubt the large port head is going to make a difference.

Its swings and roundabouts.  If I was to do it for stage 2 and had chance of both engines....id be putting AUM sensors onto the AGU engine bare block and the k03s turbo.

yeah..how to do this? is it not similar to using an AUM or the original AWP head on the AGU block?  check engine light is for lamda and cam shaft postion sensors.

I believe you can put the VVT cam tensioner and chain with the VVT solenoid into the AGU head.  VVT is used mainly to aid emissions on initial startup on these.  So im not sure if you can run without the VVT without having a issue with ECU dropping onto other maps for the engine to run on.  It would be worth reading into removing VVT from the AUM-onwards engines see whats effected and how you bypass it.  SAI would be simply blocked off with the resistor mod.

[niijohnnie]

from what i can make of it your going to be defeating the object of why it was done in the first place or am i missing summat

the tequila and stella is kicking in 

ahaahhaaa... was done when the original AWP engine got 'kaput'!! I'm only looking for normal usage and a good performance. looks like the fuel consumption is higher, hard acceleration sometimes result in tiptronic getting stuck in fourth gear. highest speed I could get to with good road condition is 160km/h. whilst not looking to race it gives me an indication that the is a problem somewhere!!!

[niijohnnie]

the whole good point about the agu in my eyes is the fact there not as clever lol so they dont throw up lights when you get rid of the cat, also the heads got bigger ports. so why would you fit a agu bottom end to a aum head? that just sounds a bad idea..got any pics of the engine bay?

these are some pics of the engine bay. any ideas as to where the unconnected wire harness could connect to? or what they do?