B6 Models Please discuss all 2002 - 2005 B6 A4 topics here...

What turbo do I have?

Thread Tools
 
Search this Thread
 
  #1  
Old 03-09-2011, 03:27 PM
mcclintock89's Avatar
1st Gear
Thread Starter
Join Date: Feb 2011
Posts: 43
Default What turbo do I have?

I've been reading mixed things.

I have an 03 1.8t turbo AMB engine quattro

do i have a k03s or a k03?
 
  #2  
Old 03-09-2011, 08:23 PM
auditech79's Avatar
Site Moderator
Join Date: Feb 2007
Location: Nor Cal
Posts: 9,004
Default

K03s, the regular K03 was last used in the 2000 ATW block.
 
  #3  
Old 03-10-2011, 12:18 AM
mcclintock89's Avatar
1st Gear
Thread Starter
Join Date: Feb 2011
Posts: 43
Default

ok thanks. so i'm guessing upgrading to a k04 wont be a very big gain then.... depressing
 
  #4  
Old 03-10-2011, 07:12 PM
auditech79's Avatar
Site Moderator
Join Date: Feb 2007
Location: Nor Cal
Posts: 9,004
Default

Almost none.
 
  #5  
Old 03-10-2011, 09:29 PM
olstyn's Avatar
1st Gear
Join Date: Nov 2009
Location: Twin Cities, MN
Posts: 440
Default

Just to put some actual numbers out there, APR's website shows 235HP for the stock turbo with their Stage 1+ ECU & injectors upgrade, and their K04 package is 247HP (both numbers on 93 octane, 91 is slightly less). Pretty minor gain for the extra money (more than $1000 more); probably not worth it unless your stock turbo has failed and you need to replace it anyway, in which case a K04 is only a little bit more money.

I'd be willing to bet they even push about the same maximum boost, but the K04 probably just doesn't run out of breath as much at the high end of the RPM range, thus the extra few HP.
 
  #6  
Old 03-11-2011, 01:37 AM
Mike-2ptzero's Avatar
4th Gear
Join Date: Apr 2008
Location: Phoenix, Arizona area
Posts: 3,274
Default

Come on guys, it was a trick question. There is no such thing as a longitude K03s. lol

The old K03 was on the AEB cars. The 2000 got an updated K03 and then the 2001+ got another updated K03. None of them ended up with a K03 Sport which is only found on the Transverse 1.8t's.

If there was a difference in the K03's used on the A4 then the 2001+ cars would make way more power then the pre 2001's once they were all running the same boost level. But the fact is that they dont, they end up making the same power. Maybe this is why my stock K03 on my 2000 ATW was able to produce about 250chp. lol


The problem is way too many people on the A4 forums have been throwing around the name "K03s" to describe the K03 that came stock on the 2001+ cars. They started doing this because they figured their turbo had to be better since their cars made 20hp more stock, but yet that 20hp gain was made by Audi just increasing the stock boost level.
 
  #7  
Old 03-11-2011, 05:47 PM
auditech79's Avatar
Site Moderator
Join Date: Feb 2007
Location: Nor Cal
Posts: 9,004
Default

Originally Posted by Mike-2ptzero
Come on guys, it was a trick question. There is no such thing as a longitude K03s. lol

The old K03 was on the AEB cars. The 2000 got an updated K03 and then the 2001+ got another updated K03. None of them ended up with a K03 Sport which is only found on the Transverse 1.8t's.

If there was a difference in the K03's used on the A4 then the 2001+ cars would make way more power then the pre 2001's once they were all running the same boost level. But the fact is that they dont, they end up making the same power. Maybe this is why my stock K03 on my 2000 ATW was able to produce about 250chp. lol


The problem is way too many people on the A4 forums have been throwing around the name "K03s" to describe the K03 that came stock on the 2001+ cars. They started doing this because they figured their turbo had to be better since their cars made 20hp more stock, but yet that 20hp gain was made by Audi just increasing the stock boost level.
If all the difference is just tuning, why are the numbers different for chips between the engines? Did i miss something here, im confused. Did the companies chip it deliberately that way because of the engine design or something?
 
  #8  
Old 03-11-2011, 06:09 PM
Mike-2ptzero's Avatar
4th Gear
Join Date: Apr 2008
Location: Phoenix, Arizona area
Posts: 3,274
Default

It comes down to boost pressure. The older tunes for the earlier A4's were only pushing under 1 bar, then pushed to 1 bar and then around 1.1 bar. For the 2001+ cars tuners started pushing the K03 harder at 1.3-1.45 bar. This is why they show higher hp for those tunes. Do the same on the 058's and you end up making the same power too.

Odd thing is long time ago some of the tuners were offering .8 bar tunes. That is about the same boost the 2001 comes with stock.
 
  #9  
Old 03-11-2011, 06:18 PM
auditech79's Avatar
Site Moderator
Join Date: Feb 2007
Location: Nor Cal
Posts: 9,004
Default

Ok. All the same though, the K03 still isn't much of a difference from a K04 to justify the price to power ratio, the OP would still be better off upgrading to at least an eliminator, i think we can all agree on that.
 
  #10  
Old 03-11-2011, 06:24 PM
Mike-2ptzero's Avatar
4th Gear
Join Date: Apr 2008
Location: Phoenix, Arizona area
Posts: 3,274
Default

Correct. The K04 just moves the power band slightly up in the rpms with not all that much gains in hp/tq, unless it is really pushed hard. Just better off going to a Frankenturbo or Elim kit.
 


Quick Reply: What turbo do I have?



All times are GMT -4. The time now is 07:32 PM.