V
KO4
- Thread starter odascoo
- Start date
Meat
rack rack 'em
- Location
- Cincinnati, OH
- Car(s)
- 2007 GTI [DSG]
Well how about going stage 2 first before you worry about not having enough power? Trust me, you will notice a difference, and you will be glad you didn't spend so much.
i will second this, stage 2 will be more than enough power to keep a smile on your face.
JerseyDubber_82
NOY-PI
- Location
- NJ/NY
yea.. at least for a lil while, then you will be power hungry again once you get used to it..:word:
slikster
Ready to race!
- Location
- Richmond,VA
APR's L04 probably could make 300WHP if you also get the fuel pump.
speedform
Ready to race!
- Location
- Rochester Mi.
2 questions:
Isn't the K04 turbo a really old design or has it been updated? (ball bearing, etc.)
2. Don't these cars run out of traction with anything more then 280hp?
Isn't the K04 turbo a really old design or has it been updated? (ball bearing, etc.)
2. Don't these cars run out of traction with anything more then 280hp?
1.they had to have updated it because it is on the edition 30 now
2. nothing a little rolled fender with wider tires cant do hahaha
BTW where in so cal are you?
I think its a great idea. For going bt its better to have a faster actuating valve that doesn't cause any CELs Bogging caughs any thing. Do a search for the HKS SSQV..... thread you'll see. Im not going to explain myself as I already have covered every issue there and I know theres plenty of haters out there. No reason to say its a bad idea when its fully functional and I did the tests myself.
Pnguyen1028
Ready to race!
- Location
- Seattle, Washington
Not hating... I think people can do whatever the hell they want with their cars. The HKSS BOV was the very first thing I looked up to see if it was compatible with our GTI and I was real brokenhearted seeing that it had very negative responses.
:brokenheart:
I'm sure it doesn't cause a CEL, bogging, or anything huge like that. Though, you can't deny the fact that the ECU will inevitably run slightly rich by adding fuel that should be mixed with the air that is being vented into the atmosphere. It's so miniscule that it doesn't really matter, but it's still there.
I've gotten really addicted to the DV sound though
. It's an aggressive woosh, instead of a little sqeak.
:brokenheart:
I'm sure it doesn't cause a CEL, bogging, or anything huge like that. Though, you can't deny the fact that the ECU will inevitably run slightly rich by adding fuel that should be mixed with the air that is being vented into the atmosphere. It's so miniscule that it doesn't really matter, but it's still there.
I've gotten really addicted to the DV sound though
. It's an aggressive woosh, instead of a little sqeak.And to put this myth to rest I've done various vag logs with the a/f mixture and its just as it was OEM when I get back onto the throttle. I'm sure with other BOV's there will be rich conditions betweens shifting being that most of them use springs to actuate the valve and you have to tune it as to when it should actuate and close. With the Sequential pull type relief valve it works soley on vaccuum and boost pressure and closes before the system is completely vented still retaining some charge air in the intake stream. If you have anymore questions and comments please post it in the respective thread as Im more then happy to discuss this just don't want to clutter this up with OT information
Pnguyen1028
Ready to race!
- Location
- Seattle, Washington
If it is as you say :thumbup:
BoostedNick
I Need A Turbo Upgrade
- Location
- Pasadena, MD
- Car(s)
- 2007 GTI
man forget the k04... save some money and go with atp gt30r kit. its actually cheaper than the k04
bwzimmerman
Passed Driver's Ed
- Location
- Baltimore, MD
1. Yes, the S3 K04 has gotten 310 - 330 HP, and can go higher when bigger injectors come out. (or so I am told)
2. No, I think Torque can be the problem but there are ways to combat it. LSD, wider tires..
Heres for everyones questions, this is from VWVortex forums, and helped alot.
BTW, STaTSIS engineering has a K04 kit with GIAC software, S3 K04, S3 injectors, larger Fuel Pump, DV solution all for $5k.
The S3 K04 is alot bigger then the 1.8T K04, and the stock S3 is rated at 300 HP. Ill provide link to all my research, cause I just rehashing what i learned from APR, Revotechnik and other experienced people.
S3 K04 Turbo... from OEMplus, $2000..
OEMplus http://oempl.us/index.php?main_page=product_info&products_id=434
K04 Kits..
AWE http://www.awe-tuning.com/ (they sell one, dont see on site though)
APR http://www.goapr.com/VW/products/turbo_mkv_gli.html
STaTSIS http://www.stasisengineering.com/Category_Detail.aspx?YR=2007&MK=VW&EN=197&PID=191
K04 Topics..
http://forums.vwvortex.com/zerothread?id=3537058
http://forums.vwvortex.com/zerothread?id=3627345&postid=45123657#45123657
http://forums.vwvortex.com/zerothread?id=3542313
Note this quote.. source of alot of info.
Keith@APR said:I just want to provide some insight from a different opinion so please don't think I'm flaming but I am going to add some fuel (pun intended
In regards to the internals of the 2.0T FSI:
There has been some discussion about the rods and pistons only being able to handle 300'ish chp or whp.
Its important that everyone understands in regards to pistons this only applies to AXX engines which are the early 05 2.0T FSI engines sold as European spec only that had the crowned pistons and were true FSI and lean burn. The crowns on the pistons and casting techniques used to make them resulted in a weak piston with low heat tolerances.
The current engine and all 06+ engines have abandoned the crowned pistons, true FSI and lean burn. This results in a more traditional style piston manufactured more traditionally as well and has made the issues associated with the AXX or crowned pistons a moot point. Proper calibration techniques will yeild 350whp+ safely on the oem pistons.
The rods are good in both applications to 350whp+ as well.
In regards to Ko4 turbochargers and FSI fueling:
During our calibration of the S3 ko4 we have found that egt's like to shoot up very quickly. The reason is the close proximity of the turbine to the exhaust housing. This makes for a great spool but up top things get hot pretty quickly.
Due to high egt's, its then necessary to add more fuel to cool things off so you can keep adding boost and making more power. At about 280whp and 290wtrq the egt's begin to surpass the oem fueling's ability to keep it nice and cool. On oem injectors the on time is way beyond spec at this point and S3 injectors start to head that way a little north of 310whp.
Enter upgraded fuel pump. As you increase the S3 injector on time, fuel pressure begins to decrease more rapidly and it is then necessary to upgrade the fuel pump so you have plenty of fuel available for peak torque and to also keep the injectors supplied with enough fuel to lower egt's in the high rpm's. This leads to 310whp-330whp and 310wtrq-330wtrq.
Summary:
In order to maintain proper injector on time and low egt's with the s3 ko4 you are either limited to 300'ish chp with s3 injectors or oem injectors and no fuel pump or you can upgrade fueling to get closer to 330-340chp.
If you want to offer a warranty for a turbokit as an aftermarket or oem company it is very important that you are able to keep egt's down and injector on times within safe specs. If you can't do this to the tune of 330-340chp with a ko4 then you have to settle for what you can accomplish which seems to be about 300'ish chp if you can't find a reliable fuel pump upgrade that you feel you can offer a warranty with.
Modified by Keith@APR at 11:54 AM 1-22-2008
Well i hope this info helps.. it helped me alot.. and also made my decisions harder.. lol. :drinking: :w00t:
http://forums.vwvortex.com/zerothread?id=3537058