Interesting comment from a US tuner

EddyH · 31-08-2004, 22:18

Quote:

Originally Posted by Elculo

I asked him re Borg Warners comment about the kO3s being limited to 215,and...

My understanding was that the KO3S had a compressor stage similar to the KO4 But it's not info I reviewed from Borg Warner, who rarely releases any info. We can reliably tune these to 215 hp, any more and you are risking turbo and engine longevity. The difference between a standard KO3 and the KO4-01 is only around 30 kw anyway.Most KO4 files we have done have dyno'd in the 230-235 region

so,Des was right,any RR that gives 230 for a KO3 is very close to seriously reducing your engine and turbo,or its just bull****

I've had a K03, K04 and K03S and the above comments just don't ring true. I don't want to get into the BHP numbers achieved other than to ask if the figures quoted are flywheel or wheel figures as most US tuners tend to only quote WHP.

The K03 and K04 are dated weak turbos in comparison to the K03S. The K04 can move more air than K03S at the same pressure, however the K03S is considerably stronger so can run higher levels of boost. From what I have seen comparing BHP figures there is usually only around 5bhp difference in peak power between the K03S and K04. The big difference is the K03S' stronger midrange and much higher torque. If the two turbo's rolling road graph's were compared the following would be observed:

K03S - Torque comes in early and with a big spike, holds well in the midrange but drops off towards the end. This is reflected in the power with a steep rise but flatenning earlier.

K04 - Torque comes in later due to later spool up, spike isn't has high but torque is flat and holds upto the higher revs. Power is more uniform upto the high revs.

The end result is peak power is about the same for both, they just get there in different ways.

As for the K03 it's a bit pants, low torque and not much happening after 5krpm. With just a remap they give about 185-190bhp with loads of other mods you should be happy if you break 200bhp.

***DGW*** · 31-08-2004, 23:17

I thought the existence of the KO3S had been laid to rest in this thread?

EddyH · 01-09-2004, 09:36

K03S is the name commonly accepted to distinguish between the old 12 vane K03 and the new 8 Vane K03(S). It's just confusing if you call them both K03 and a bit long winded to start detailing which variant you mean when most people understand that the S is refering to the newer design turbo.

***ncarring*** · 01-09-2004, 09:51

Quote:

Originally Posted by EddyH

As for the K03 it's a bit pants, low torque and not much happening after 5krpm. With just a remap they give about 185-190bhp with loads of other mods you should be happy if you break 200bhp.

I consider myself suitably put in my place. Oh how I wish I had a big one like yours ....

EddyH · 01-09-2004, 10:58

As you're already Jabba'd it would be fairly cost effective to upgrade from the old K03 to the new one. The turbo can be had for around £250 and Jabba should only charge a small fee for the RR time. Most Golf owners who have done this have seen a 30+bhp increase.

***ncarring*** · 01-09-2004, 11:16

I thought the manifolds were different?

EddyH · 01-09-2004, 11:28

Just the turbo intake pipe is different, these often come with the turbo or you can just use a Samco TIP.

Jabba have done quite a few of these so give them a call if you want more info. However I don't think they'll do the fitting due to how busy they are.

Dutch4x4 · 01-09-2004, 11:49

Oettinger quote K03s figures from 205 to 215 hp, so there's the view from a respected German tuner.

bengie · 01-09-2004, 12:58

the turbo on my carbroke and got replacedunder warrenty about 2 months before i bought the car, and its standard so i don't know what went wrong with it just that the warrenty history on my car states new turbo charger just under a year ago.

31-08-2004, 23:17	#27
*DGW* BRISKODA Staff Join Date: Oct 2002 Location: Cambridgeshire Posts: 17,300 Thanks: 51 Thanked 208 Times in 157 Posts	I thought the existence of the KO3S had been laid to rest in this thread? __________________ Denis 2002 Octavia 1.8T 4X4 turbo Estate - rebreathed on by Jabba ... 31.93mpg 2007 Fabia vRS - CC, ESP and full leather trim by Seat Surgeons ...48.57 mpg...

01-09-2004, 09:36	#28
EddyH Briskodian Join Date: Jun 2004 Location: West Yorkshire Posts: 4,908 Thanks: 41 Thanked 27 Times in 27 Posts	K03S is the name commonly accepted to distinguish between the old 12 vane K03 and the new 8 Vane K03(S). It's just confusing if you call them both K03 and a bit long winded to start detailing which variant you mean when most people understand that the S is refering to the newer design turbo. __________________ EddyH Audi A6 Avant 2.7 TDI Audi A3 2.0 TDI Sport

01-09-2004, 10:58	#30
EddyH Briskodian Join Date: Jun 2004 Location: West Yorkshire Posts: 4,908 Thanks: 41 Thanked 27 Times in 27 Posts	As you're already Jabba'd it would be fairly cost effective to upgrade from the old K03 to the new one. The turbo can be had for around £250 and Jabba should only charge a small fee for the RR time. Most Golf owners who have done this have seen a 30+bhp increase. __________________ EddyH Audi A6 Avant 2.7 TDI Audi A3 2.0 TDI Sport

01-09-2004, 11:16	#31
*ncarring* Don't talk, drive! Join Date: Feb 2003 Location: The B roads of Britain Posts: 12,964 Thanks: 17 Thanked 95 Times in 78 Posts	I thought the manifolds were different? __________________ Nick North Wiltshire RoADAR

01-09-2004, 11:28	#32
EddyH Briskodian Join Date: Jun 2004 Location: West Yorkshire Posts: 4,908 Thanks: 41 Thanked 27 Times in 27 Posts	Just the turbo intake pipe is different, these often come with the turbo or you can just use a Samco TIP. Jabba have done quite a few of these so give them a call if you want more info. However I don't think they'll do the fitting due to how busy they are. __________________ EddyH Audi A6 Avant 2.7 TDI Audi A3 2.0 TDI Sport

01-09-2004, 11:49	#33
Dutch4x4 Briskodian Join Date: Feb 2003 Location: kicking up feet in the Formula Stealth paddock Posts: 3,153 Thanks: 0 Thanked 0 Times in 0 Posts	Oettinger quote K03s figures from 205 to 215 hp, so there's the view from a respected German tuner. __________________ Mrs D's Briskoda: Octavia 4x4 turbo (2003), Oettinger 210, Koni Sport, MAD Sportive, Dotz Le Mans 17", Bridgestone Potenza S-03, sports interior. And a Fiesta ST (2006) for myself...

01-09-2004, 12:58	#34
bengie splash!!!! Join Date: Feb 2004 Location: planet earth Posts: 15,255 Thanks: 17 Thanked 144 Times in 125 Posts	the turbo on my carbroke and got replacedunder warrenty about 2 months before i bought the car, and its standard so i don't know what went wrong with it just that the warrenty history on my car states new turbo charger just under a year ago. __________________ owner of a skoda octavia 4xvrs3

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