ko4 turbo upgrade

[ultrasportuser]

hey guys,
im looking into buying a ko4 turbo for my b6 a4 ultrasport. the problem is the kit is almost 2200 bucks from AWE. and thats not including a new clutch which i would have to get because its too powerful for the OEM. is there a way i could just chip it and buy the turbo separately to save money? i know i wouldnt get injectors if i dont buy the kit.

[John@Unitronic]

hey guys,
im looking into buying a ko4 turbo for my b6 a4 ultrasport. the problem is the kit is almost 2200 bucks from AWE. and thats not including a new clutch which i would have to get because its too powerful for the OEM. is there a way i could just chip it and buy the turbo separately to save money? i know i wouldnt get injectors if i dont buy the kit.

We don`t recommend you using a K04 on a K03 software because not only the drivability will not be great, using stock injectors makes it a little risky. From our side our K04 software ( Stage 2+ ) requires you to use 386cc injectors from a Audi TT225 and it is set around 22psi which will put a lot of stress on your clutch. Depending on the condition of your clutch, you can always use a boost controller to run it low boost until you upgrade your clutch. Click on this link to get all the info about our software

[Trendsetter]

2200 is way too much man... You can piece together a used k04-015, used injectors, and then get a file from Uni... end up costing you half the money!

hey guys,
im looking into buying a ko4 turbo for my b6 a4 ultrasport. the problem is the kit is almost 2200 bucks from AWE. and thats not including a new clutch which i would have to get because its too powerful for the OEM. is there a way i could just chip it and buy the turbo separately to save money? i know i wouldnt get injectors if i dont buy the kit.

[Seerlah]

K04-15 is not worth the money involved for a proper kit. Frankenturbo is the new budget minded turbo kit. Unitronic even has a tune for the B6 platform for this turbo. It can grant you close to 50 more chp than the k04-15 will.

[trev718]

^^Most times I read your post it's pretty knowledgeable but every time someone mention the k04 you put it down....You must really hate this turbo....lol

[Seerlah]

I hate the cost of it vs. gain, so my opinion stands. lol

[David@Unitronic]

K04-15 is not worth the money involved for a proper kit. Frankenturbo is the new budget minded turbo kit. Unitronic even has a tune for the B6 platform for this turbo. It can grant you close to 50 more chp than the k04-15 will.

We do not have a specific software for these turbo yet on longitudinal engine. Work is in progress and it should be available shortly.

[Seerlah]

Are you guys planning on making it for both the narrowband o2 sensor on the B5 (AEB/ATW) and wideband o2 sensor on the AWM/B6? That would be really benefitial to the community, because people are paying a lot of money for custom tunes for the Frankenturbo. I know you guys would offer an OTS tune, so that def cuts down cost of the consumer (us). There are many people who are more than happy with an application that pushes close to the 300chp range, and don't really plan on doing anything larger than that. And the tune is the only thing that is troubling people with this kit, because they are not readily available from the tuners we are acustomed to (Unitronic, Eurodyne, APR, GIAC, Revo, etc).

But I swear I seen a car in the B6 A4 section using a tune by Unitronic for his franketurbo? Am I mistaken (was not a Frankenturbo tune), or was that like a one-off tune (ie tweeked k04-15 file)?

[a5e4n]

Are you guys planning on making it for both the narrowband o2 sensor on the B5 (AEB/ATW) and wideband o2 sensor on the AWM/B6? That would be really benefitial to the community, because people are paying a lot of money for custom tunes for the Frankenturbo. I know you guys would offer an OTS tune, so that def cuts down cost of the consumer (us). There are many people who are more than happy with an application that pushes close to the 300chp range, and don't really plan on doing anything larger than that. And the tune is the only thing that is troubling people with this kit, because they are not readily available from the tuners we are acustomed to (Unitronic, Eurodyne, APR, GIAC, Revo, etc).

But I swear I seen a car in the B6 A4 section using a tune by Unitronic for his franketurbo? Am I mistaken (was not a Frankenturbo tune), or was that like a one-off tune (ie tweeked k04-15 file)?

Unitronic BT tune for my car (ATW) $890...custom tune by Jeff Atwood at United motorsport $799....I'll go with Jeff! Can't wait to see what he produces for my F4T set up!

[Seerlah]

^So, you paid ~$1700 (minus a few bucks) for your Frankenturbo tune?

[vtraudt]

K04-15 is not worth the money involved for a proper kit. Frankenturbo is the new budget minded turbo kit. Unitronic even has a tune for the B6 platform for this turbo. It can grant you close to 50 more chp than the k04-15 will.

Here is what I did and paid (granted: I faced the cost involved in a K03 rebuilt):
1998 AEB (nDBW = no Uni files or anything else decent out there):
$200 for turbo (over quality rebuild of same turbo) got me a K03/K04 hybrid (drove on stage 2 file for a good year).
$150 for injectors (31 lb as Giac PC16 calls for)
$300 Giac PC16
$50 used AFPR (to run at 2.9 bar)
Total: $700

Running 180 g/sec, close to the limit of the MAF.

[Seerlah]

^You happened to get lucky and got a Hybrid k04 for $200. Others are not as fortunate. I am used to something like this:

-Borg Warner k04-15 (anywhere from $500-$900)
-Optional high flow manifold (anywhere from $150-350)
-Injectors ($200)
-FPR ($50)
-Tune ($500)
-MAF if required ($100)
-Silicone turbo inlet ($150)
-Intercooler (cheap $150 ebay unit will do)
-Exhaust (????)

All for a whopping 25-35chp over my ECU flash for the stock turbo on my AWM?

[vtraudt]

I consider myself in deed lucky. But anyone facing the "K03 crapped out" situation must admit. Great bang for the buck.
And my $$$ math only worked since I did not consider the $400 I had to spent on the factory rebuilt of my turbo; so the actual total cost for my turbo were $600, which raises my total to $1,100 (which I still consider an excellent bang (180 g/sec) for the buck).

On the low end of the performance ladder, the ECU flash is without question the best bang for the buck.
For the 'medium power', my hybrid (for those with bad stock turbo) is the way to go.
For those buying a new turbo: My money is on Frankenturbo plus tune (not sure what the tunes cost), something like $1,600?

I personally would skip the entire 'elim'. If someone ever looked at the stock manifold, it sure seems ludicrous to put a fat 'ball bearing' (duh!) turbo on that thing.
Elim OUT for mid range.

Rather spent the money for a real BT setup if you are already willing to pay big bucks as required for elim setup. Changing the manifold and plumbing (for a T3/T4 for example) is sure worth it.

[a5e4n]

^So, you paid ~$1700 (minus a few bucks) for your Frankenturbo tune?

Well the frankenturbo kit was $1049 for the turbo, high flow exhaust mani, and silicone tip. Then I got a few other things:
Forge 008 dv $185
Evolution racewerks TP $185
Genesis 550cc injectors $300
Podi electronic stepper boost gauge $200
Godspeed fmic $250
Apr snub mount $39
Bosch platin side fire plugs $60
Custom UM maf housing and tune $750

So yeah..total cost so far is around $3k but I'll be getting exhaust in the spring too.

[BADRVCA]

so the k04 turbo isnt worth the money ??? what about if u only wanna get 300hp ??? would the ko4 be a good upgrade .??? or should i change my set up to a t3/t4 turbo ???

[a5e4n]

so the k04 turbo isnt worth the money ??? what about if u only wanna get 300hp ??? would the ko4 be a good upgrade .??? or should i change my set up to a t3/t4 turbo ???

No, at this point with the other options available (like the frankenturbo) the k04 isn't really worth it anymore for the small gains it produces. Good luck getting anywhere close to 300chp with a k04. FT will flow up to right around 300chp no problem with a good tune. I'm around 235 g/s with my set up last time I logged, which puts me at right about 294chp.

To get a rough estimate of your chp you take your g/s and multiply by 1.25.

[texasboy21]

K04 talk, is it 2006 lol?

THe stock clutch can handle a K04, for how long is the question. You will need at least a tune, 386cc or larger injectors (tune specific) and the turbo. You should be able to easily piece together a kit for ~$1500. However to really get the most out of the turbo you will need an upgraded intercooler, exhaust, new spark plugs, and of course all the maintenance (sensors, gaskets, etc.).

The gains per dollar just arent there with the standard K04. One could go with a hybrid K04, flow more air, and spend less.

[coowhip]

Who does the Frankenturbo tune? Can you use any 1 or 1+ tune for it?