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View Full Version : Going KO4 and have some questions.



ActiveMonkey
07-11-2007, 10:35 AM
So i should be getting an insurance check for ~$2000 and though i would like to wait and maybe get a used Stage 3, i think i'll keep some reliability and just get a new KO4.

I have a 1998.5 A4 Quattro Manual.

If i recall, the "Fastest" kit for my car is the PC-16.

I would get it from AWEtuning.com. Then buy the PC-16 package, and Since i'm GIAC i will get the $200 discount bringing me pretax total to $1,699.00.

Then i'll build an eBay FMIC.

I should then have all my bases covered.



Questions:
1 - Is there a more powerfull KO4 kit for my vehicle?
2 - If so, how does that kit compare in regards to reliability?
3 - Is there another place to buy a KO4 PC-16 kit for less than $1,699.00?
4 - Did i forget anything?

Rosati
07-11-2007, 10:53 AM
No, pc 16 is our limit. Audiworld calls PC16 the "K04 Killer"

PC16 from what I know is reliable, BUT is very stressful on the turbo.

Im sure you can find used software for cheaper or a kit cheaper, but you seem like you only want to go w/ used software and most seller will want to sell a kit only.

If i were you , Id pick up a 28RS/2871R, just when you start to enjoy the PC16, you crave more and then the boost drops and the torque hits a wall. You actually feel it "hit a wall" as the K04 runs out of efficiency in the upper rpms.

I was 2 days away from installing my pc16 setup until i found my current turbo kit.

I bought that, sold the K04 kit and here I am aiming for 320Whp and spent a tiny bit more than your 1700

ActiveMonkey
07-11-2007, 11:17 AM
I like the idea of going 28rs or so, but i can't have any reliability issues.

Is the PC-16 really that stressfull on it? Just the psi or what?

AB18
07-11-2007, 11:26 AM
If you want reliabilty, then def go ko4. My ko4 kit was as reliable as can be. Heres what to do..

Get the full pc-16 ko4 kit
Test-dp- full exhaust
carbonio intake
p&p your stock exhaust mani
Light weight wheels
Ebay fmic
A good clutch


You install all that, and your looking at about 260hp and 310ft/pd, and one nasty in town setup.I know i ran 14.3 with just the measly baseline kit, with a full on pc-16 ko4 kit i could have ran hgih 13s easy.

ActiveMonkey
07-11-2007, 11:42 AM
If you want reliabilty, then def go ko4. My ko4 kit was as reliable as can be. Heres what to do..

Get the full pc-16 ko4 kit
Test-dp- full exhaust
carbonio intake
p&p your stock exhaust mani
Light weight wheels
Ebay fmic
A good clutch


You install all that, and your looking at about 260hp and 310ft/pd, and one nasty in town setup.I know i ran 14.3 with just the measly baseline kit, with a full on pc-16 ko4 kit i could have ran hgih 13s easy.


Nice... So i'd just need to get the KO4 w/ PC-16, eBay FMIC, and New exhaust manifold.

Did you install a turbo timer?

sushi_turbo
07-11-2007, 01:48 PM
If you want reliabilty, then def go ko4. My ko4 kit was as reliable as can be. Heres what to do..

Get the full pc-16 ko4 kit
Test-dp- full exhaust
carbonio intake
p&p your stock exhaust mani
Light weight wheels
Ebay fmic
A good clutch


You install all that, and your looking at about 260hp and 310ft/pd, and one nasty in town setup.I know i ran 14.3 with just the measly baseline kit, with a full on pc-16 ko4 kit i could have ran hgih 13s easy.

I have this exact setup minus the clutch and it is awesome.

badboi24u
07-11-2007, 02:20 PM
Nice... So i'd just need to get the KO4 w/ PC-16, eBay FMIC, and New exhaust manifold.

Did you install a turbo timer?

turbo timer does nothing for performance

badboi24u
07-11-2007, 02:20 PM
If you want reliabilty, then def go ko4. My ko4 kit was as reliable as can be. Heres what to do..

Get the full pc-16 ko4 kit
Test-dp- full exhaust
carbonio intake
p&p your stock exhaust mani
Light weight wheels
Ebay fmic
A good clutch


You install all that, and your looking at about 260hp and 310ft/pd, and one nasty in town setup.I know i ran 14.3 with just the measly baseline kit, with a full on pc-16 ko4 kit i could have ran hgih 13s easy.

did you have injectors?

ActiveMonkey
07-11-2007, 02:35 PM
turbo timer does nothing for performance

no shit, but it works great for prolonging the life of your turbo when it comes to cool down. Dunno about you, but i hate sitting in the car for a few minutes to allow the turbo to cool properly. Key off, me out the door.

ActiveMonkey
07-11-2007, 02:36 PM
did you have injectors?

Injectors are part of the PC-16 package.

azndrunk74
07-11-2007, 03:00 PM
Give me a ride when it's all done =] I'm contemplating a GTRS kit but a k04 isn't out of the picture. I need my car to last, it's at 153k miles and it's my daily driver to get to and from work.

dualaudi
07-11-2007, 03:33 PM
What size DP and exhaust 3"?

ActiveMonkey
07-11-2007, 03:35 PM
ATP 3" Test Pipe, 2.5" Mandrel Bent Exhaust w/ Magnaflow 12158

I was going to sell this and go for something larger, but i had my GF drive my car and i followed in hers and i love the sound of my car too much to change the exhaust. I would get a little bit ahead then have her pass me at WOT and i had the biggest smile on my face the rest of the way home.

AudiRacerS4
07-11-2007, 04:06 PM
PC-16 is a nice little reliable setup and has some power to back it up

ActiveMonkey
07-11-2007, 04:11 PM
Have you ever tracked yours? if so, how did it do?

AudiRacerS4
07-11-2007, 04:20 PM
I've never ran the 1/4 but I've autocrossed it and it performed great and has a nice broad power range from 2500 to about 6700 (I'm running an MBC and tweaked the wastegate a little bit) It holds about 17-18psi till redline so its pretty nice. I dont think you will be dissapointed if your looking for decent power without going BT and want reliability

offroader1006
07-11-2007, 04:21 PM
this is why i wont go eliminator yet. reliability of the K04 is hard to beat.

for a DD, its great, no big difference from stock until you boost above 5psi.

ActiveMonkey
07-11-2007, 04:26 PM
Exactly what i'm looking for.

a4cefed
07-11-2007, 04:29 PM
i have to say these k04 are not as reliable as everyone thinks, i know first hand. from bad waste gates to other problems.
Rosati is right about the pc-16 putting stress on the turbo. not to mention the running rich - lean. skip k04 and go BT

ActiveMonkey
07-11-2007, 04:34 PM
What is more reliable and more CA Smog legal


KO4 or BT?

offroader1006
07-11-2007, 04:34 PM
that sounds like your own problems.

i have had K04 for over 30k miles, no problems anywhere.

and pc-16 needs to be fine tuned for AFR. which is why an ADJ FPR is required.

dualaudi
07-11-2007, 04:45 PM
that sounds like your own problems.

i have had K04 for over 30k miles, no problems anywhere.

and pc-16 needs to be fine tuned for AFR. which is why an ADJ FPR is required.

Word on the ADJ FPR!
re: smog if you're QUATTRO, just make sure no CEL and you have your CAT. they don't do rolling dyno smog checks... you'll pass with BT or K04. - just make sure it's tuned correctly.

ModifiedA4
07-11-2007, 05:06 PM
no shit, but it works great for prolonging the life of your turbo when it comes to cool down. Dunno about you, but i hate sitting in the car for a few minutes to allow the turbo to cool properly. Key off, me out the door.

so do I...thats why I created my fan override mod. basically by throwing a switch in the cabin I can turn the electric engine fan on at any time. like at stop lights close to my destination...the fan blows directly on the turbo area, generally cools the engine bay down, cools the coolant down (via the radiator)...and lower coolant temps=lower oil temps(via the oil cooler).

adding cooling in this way eliminates the "sit in car and idle" method :)

all you need to do is modify one relay under the dash. so basically the mod is free. it would be a good mod for the drag strip as well.

maybe over the weekend ill finally get off my ass and write this mod up proper.
http://www.modifieda4.com/images/manual-fan/DSC01104.sized.jpg

SeKKeY
07-11-2007, 05:20 PM
Give me a ride when it's all done =] I'm contemplating a GTRS kit but a k04 isn't out of the picture. I need my car to last, it's at 153k miles and it's my daily driver to get to and from work.

youre still around! K04 is the way to go as far as reliability

d1rt
07-12-2007, 01:17 AM
I had AWE K04 kit. No PC-16 cuz I wanted to keep my car for more than a week. Best investment I ever made. Awesome. I got it when it was on sale though for like $1200. Too bad.

$teady$upreme
07-12-2007, 01:41 AM
This definitely seems very interesting, and I bet most of the people here want to know about this mod. Keep us updated~


so do I...thats why I created my fan override mod. basically by throwing a switch in the cabin I can turn the electric engine fan on at any time. like at stop lights close to my destination...the fan blows directly on the turbo area, generally cools the engine bay down, cools the coolant down (via the radiator)...and lower coolant temps=lower oil temps(via the oil cooler).

adding cooling in this way eliminates the "sit in car and idle" method :)

all you need to do is modify one relay under the dash. so basically the mod is free. it would be a good mod for the drag strip as well.

maybe over the weekend ill finally get off my ass and write this mod up proper.
http://www.modifieda4.com/images/manual-fan/DSC01104.sized.jpg

grip_racer
07-12-2007, 05:22 AM
yes i'd love to have that fan switch mod!

+1 for writeup!

AB18
07-12-2007, 05:36 AM
Just to clear things up, pc-16 is not going to kill your turbos. Pc-16 only runs about 18 to 20psi, where as j31 will spike to 25-26psi. If any thing is going to kill your turbo, its j31, no pc16. Obvisously this needs to be tuned/setup right. If you do the setup i posted above, you will not be disapointed, especialy the p&p mani, i was amazed at how fast i made boost with mine, the ko4 spools fast enough as is, but that make it spool even faster.

ActiveMonkey
07-12-2007, 08:26 AM
I don't think i'd P&P my oem exhaust manifold. Only because i'd be worried about it breaking.

I have heard a lot of good things about the ATP Manifold. (Except for the bolts backing out) But does anyone here with personal experience?

A4Rollin
07-12-2007, 12:23 PM
you guys claim the j31 is stressful on the turbo (which ive heard) but have not heard anything about the hammer file. I know the pc-16 is very reliable with a k04 with the proper mods. However, does anyone have info on the hammer file for 2001 and .5??? Now that you guys brought it up, do you happen to know what this file spikes at/ and what it holds at?? Thanks

A4Rollin
07-12-2007, 12:25 PM
you guys claim the j31 is stressful on the turbo (which ive heard) but have not heard anything about the hammer file. I know the pc-16 is very reliable with a k04 with the proper mods. However, does anyone have info on the hammer file for 2001 and .5??? Now that you guys brought it up, do you happen to know what this file spikes at/ and what it holds at?? Thanks

A4Rollin
07-12-2007, 12:25 PM
you guys claim the j31 is stressful on the turbo (which ive heard) but have not heard anything about the hammer file. I know the pc-16 is very reliable with a k04 with the proper mods. However, does anyone have info on the hammer file for 2001 and .5??? Now that you guys brought it up, do you happen to know what this file spikes at/ and what it holds at?? Thanks

TQMB5
07-12-2007, 01:46 PM
no shit, but it works great for prolonging the life of your turbo when it comes to cool down. Dunno about you, but i hate sitting in the car for a few minutes to allow the turbo to cool properly. Key off, me out the door.

better idea in prolonging the life of your turbo is not to drive like a bat out of hell right before you shut off your car. your car cools down alot better (turbo) while driving out of boost then just sitting at idle, sucking in the engines hot air

maxspeed
07-12-2007, 02:27 PM
fo serious, stayin out of boost for the last 1/2 mile or so will do wonders lol

AudiSport12
07-12-2007, 02:51 PM
I have this exact setup minus the clutch and it is awesome.

not to threadjack, but you have a TIP, no? hows everything holding up with all that power? PC-16 is what im looking to do with my TIP.

offroader1006
07-12-2007, 03:21 PM
I don't think i'd P&P my oem exhaust manifold. Only because i'd be worried about it breaking.

i p&p'd and gasket matched mine, reinforced the known crack areas with welds, smoothed it out, leaving a little more material than stock there, and am getting it cryo treated, i shouldnt have a problem with cracking.

AudiRacerS4
07-12-2007, 03:22 PM
i have tip as well with the pc-16 and its holding up just fine but i also have a tip chip

ActiveMonkey
07-12-2007, 03:26 PM
what exactly does the Tip Chip do?

offroader1006
07-13-2007, 06:30 AM
firms up the tiptronic tranny to be more sporty.

speedydragon
07-13-2007, 06:04 PM
i have tip as well with the pc-16 and its holding up just fine but i also have a tip chip



firms up the tiptronic tranny to be more sporty.

does it actually work? I've read a few threads where people say the tip chip shifts very harshly

NUISANCE
07-14-2007, 03:12 AM
I don't think i'd P&P my oem exhaust manifold. Only because i'd be worried about it breaking.

Can't go wrong for $20

http://forums.vwvortex.com/zerothread?id=3330976

ModifiedA4
07-17-2007, 07:37 PM
for those interested in my cooling mod...i did the writeup:
http://www.audizine.com/forum/showthread.php?p=1773870#post1773870

ShawFM
07-17-2007, 07:56 PM
does it actually work? I've read a few threads where people say the tip chip shifts very harshly

Doesn't shift harshly, It makes a difference in tip mode the switch (yes switch) response is quicker. You press the switch and the shift is right there. It is suppose to change it from 1 second to about 0.2 seconds. But for the $250 I think the extra money for a valve body would be a better deal.