K04 upgrade

[LazyLunatic]

looking at doing a k04 upgrade on a 1.8t engine that originally runs a k03. of course you need a k04 turbo but im not sure about manifold and injectors?

will it require a k04 manifold? if so, how good are the atp hi flow manifolds?

as for the injectors, what different types of oem injectors are there? according to some sites, they have them listed as big or small. So are all "big" injectors the same regardless of the original turbo on the engine or are there turbo specific injectors?

and anything else i might need to know about this upgrade.

cheers

[topher]

S3 injectors, 4 bar FPR, ex. mani (atp one isn't that special), oil/coolant lines

If it's going in a mk3 then you'll be using a custom downpipe anyway I take it.. it'll be different to the k03 one, similarly you'll be using a custom/home made intercooler setup.. the boost hoses are different so you can't use the k03 stuff. If you're gonna do it, do it all in one go as you put the engine in.. it'll be a pain in the rectum retro-fitting a k04 after you've grafted to get all the pipework in place.. only to cut it all out again.

Alternatively just start off with a APX, AMK or BAM engine and it'll already have the k04 on it.

[LazyLunatic]

cheers toph, if i dont get a k04 engine, then i will defo be upgrading to k04. going to be using qpeng, so before i go ahead with the conv, i will source all the parts needed for the upgrade and fit all the k04 stuff, during the conv. i will order the qpeng stuff to run the k04 upgrade.

didnt think about FPR, good shout.

as for the injectors, do i need the injector rail with injectors or just the injectors? can these be bought new?

started planning the boost piping, will also order some oil/coolant lines, was looking at replacing them anyway to spruce up the engine bay. need to look into intercooler placement. not sure if i can fit a large one to the front.

the price of high flow mani is around £300. so ideally i would like to find a used one, unless the high flows are good/worth the money.


cheers,

LL

[topher]

you can get the injectors new but they're £££££

they turn up on ebay all the time, and they'll go in any 1.8T rail.

[LazyLunatic]

ok cool, so if i did buy new injectors, what would i be looking for? 440cc, 420cc? and what injectors will fit on a AUM engine? i think they are EV6 high dependance type, but not sure.

LL

[topher]

EV12, same as S3 (which are 384cc and plenty for 300ish bhp @ 4bar)

oh and i sorta lied above.. they wont go on any 1.8T.. AGU's had EV6!

[LazyLunatic]

EV12, same as S3 (which are 384cc and plenty for 300ish bhp @ 4bar)

oh and i sorta lied above.. they wont go on any 1.8T.. AGU's had EV6!

yeah that was it! i remember reading about that now, that the agu had ev6.

EV12 384cc, cool. cheers toph!

LL

[topher]

i will reiterate my point though.. unless you're getting the AUM dirt cheap, by the time you've bought all the extra bits needed, you might aswell just start with a 210/225 engine. That way you'll also have the better rods and pistons.. giving you the 9:1 CR rather than the 9.5:1 of the AUM. Suppose you could always try to flog the k03s on to an AGU owner looking to upgrade.. but you still might only get a ton for it.

[LazyLunatic]

i will reiterate my point though.. unless you're getting the AUM dirt cheap, by the time you've bought all the extra bits needed, you might aswell just start with a 210/225 engine. That way you'll also have the better rods and pistons.. giving you the 9:1 CR rather than the 9.5:1 of the AUM. Suppose you could always try to flog the k03s on to an AGU owner looking to upgrade.. but you still might only get a ton for it.

all good m8, i got an AUM now, not dirt dirt cheap, but not bad. 210/225 engines are hard to find under £1000 and they still have parts that i would upgrade. ohh and would flog the k03s on too once the k04 is on and running.

thanks again toph.


LL

[ben1.8T]

Ashmond on here had loads of probs with his K04 conversion mate