KO4 vs.KO4/RS6 differences? What am I missing?

OCA::DIY Motorsports · 12-09-2005, 10:42 AM

With the GB going on, I'm getting the feeling that most here are positive about the RS6's superiority over plain KO4's. Is there really that big an advantage of the RS6's over the plain O4's??

There seems to not be much difference between power output between the two. At least there was not much difference at all on the dyno durring the ET GP (Zev's car actually made more power and TQ that one day). Speaking with Jeff Moss last Sunday his opinion(and he tuned both of the S4s in the GP) was that the hybrids might make a small amount more eventually, but nothing significantly more than plain jane O4s. He just did not think the benifit was worth the cost. BTW I know all dynos are different, but at least these two were done on the same day/dyno. The Stasis car does have nicer curves(HP/TQ), but is that worth the cost of the RS6's?

How does Mike2kS4's car compare to these two...is it significantly (50whp ^) more than the KO4 car?? I think this is a relavant question especially since people are making this choice with the GB going on. Any comments?

Oh, and the two dyno runs were on race gas I think.

Ben's car

Zev's car

Funkweasel · 12-09-2005, 10:46 AM

AWE fueling kit which is NOT stable particularly for airflow changes. The rs6 wheels are capable of about 10% more flow if you can get the air past the turbine housing.

And comparing race gas #s for a primarily street-oriented car is a bit silly imo. But regardless just open up the turbine housing, you'll be happy you did.

BrokenRocket · 12-09-2005, 10:46 AM

JBear::FATS · 12-09-2005, 10:49 AM

put out MAD torque with his K04/RS6 hybrids (he was one of the early adopters) on stock IC's. Most impressive. It was real hot day also.

If I had it all over, I would get the K04/RS6 hybrids with some of the options. Would just need to get a bit more comfortable with the reliability, which appears to be solid with these hybrids.

OCA::DIY Motorsports · 12-09-2005, 10:55 AM

Just trying to understand.

So you're saying the Avalon car has clearanced hot sides? PP too?

So what is Ben putting back in since I think he was replacing turbos?

lemieux@curbside · 12-09-2005, 10:56 AM

now think what rs6-s would do with 100+oct and a good program .. and all this whithout going crazy with rs4 parts (intake mani, cams...)

djillusion · 12-09-2005, 11:06 AM

PSmalls::DoggieStyle · 12-09-2005, 11:14 AM

in the process of making software for RS6 hybrids as well.

I don't want to argue one way or another, but I'd take RS6 hybrids over straight K04s any day of the week.

djillusion · 12-09-2005, 11:17 AM

WindyCityS4 · 12-09-2005, 11:19 AM

12-09-2005, 10:42 AM	#1
OCA::DIY Motorsports AudiWorld Super User Garage is empty, add now Join Date: Aug 2003 Posts: 5,647	KO4 vs.KO4/RS6 differences? What am I missing? With the GB going on, I'm getting the feeling that most here are positive about the RS6's superiority over plain KO4's. Is there really that big an advantage of the RS6's over the plain O4's?? There seems to not be much difference between power output between the two. At least there was not much difference at all on the dyno durring the ET GP (Zev's car actually made more power and TQ that one day). Speaking with Jeff Moss last Sunday his opinion(and he tuned both of the S4s in the GP) was that the hybrids might make a small amount more eventually, but nothing significantly more than plain jane O4s. He just did not think the benifit was worth the cost. BTW I know all dynos are different, but at least these two were done on the same day/dyno. The Stasis car does have nicer curves(HP/TQ), but is that worth the cost of the RS6's? How does Mike2kS4's car compare to these two...is it significantly (50whp ^) more than the KO4 car?? I think this is a relavant question especially since people are making this choice with the GB going on. Any comments? Oh, and the two dyno runs were on race gas I think. Ben's car Zev's car __________________ SUPPORT STEM CELL RESEARCH! "There are (shop)whores that do provide a valuable service. However, you appear as a whore with no orifices, therefore all you accomplish is space occupation." --Kartman "Those who would give up ESSENTIAL Liberty to purchase a little temporary safety, deserve NEITHER liberty nor safety" Benjamin Franklin

12-09-2005, 10:46 AM	#2
Funkweasel AudiWorld Super User Garage is empty, add now Join Date: Nov 2001 Posts: 10,137	This has been kicked to death. Ben's car has no clearancing on the hot side as well as that AWE fueling kit which is NOT stable particularly for airflow changes. The rs6 wheels are capable of about 10% more flow if you can get the air past the turbine housing. And comparing race gas #s for a primarily street-oriented car is a bit silly imo. But regardless just open up the turbine housing, you'll be happy you did.

12-09-2005, 10:46 AM	#3
BrokenRocket AudiWorld Super User Garage is empty, add now Join Date: Sep 2004 Posts: 9,541	Good question... I was wondering the same. The O4/RS6's are double the KO4s.... why?? __________________ 'Nogaro forever'

12-09-2005, 10:49 AM	#4
JBear::FATS Senior Member Garage is empty, add now Join Date: Sep 2000 Posts: 4,424	Look at the Dyno day from Hartman Motive over a year ago, SlowestS4Here put out MAD torque with his K04/RS6 hybrids (he was one of the early adopters) on stock IC's. Most impressive. It was real hot day also. If I had it all over, I would get the K04/RS6 hybrids with some of the options. Would just need to get a bit more comfortable with the reliability, which appears to be solid with these hybrids. __________________ ________________________________________ 2001 S4 6-Speed Santorin Engine/Drivetrain: ASP Custom Tuned Stage III Fueling, RS4 Y-Pipe/Clutch/Fuel Pump/IC's, X1 Intake, Samco F-Hose, APR Bi-Pipe, Piggie Pipes, Miltek Single, AWE DTS, APR Snub, TG SS, VAST Water/Meth Kit. Suspension/Brakes: Vogtland GT, Neuspeed Rear Swaybar (Med), Stoptech 332 BBK. Exterior: 18" BBS CH, M3 Lip Spoiler, SPP Foglight Bulbs, RS4 Grill, E-Codes. Interior: UUC Alcantata Boot, TwinData EFU, Strat S4 Logo Floor Mats, HW V1, PhatBox.

12-09-2005, 10:55 AM	#5
OCA::DIY Motorsports AudiWorld Super User Garage is empty, add now Join Date: Aug 2003 Posts: 5,647	Pardon me...I'm not in the "know" like some here. BTW I'm not bashing anyone with RS6's! Just trying to understand. So you're saying the Avalon car has clearanced hot sides? PP too? So what is Ben putting back in since I think he was replacing turbos? __________________ SUPPORT STEM CELL RESEARCH! "There are (shop)whores that do provide a valuable service. However, you appear as a whore with no orifices, therefore all you accomplish is space occupation." --Kartman "Those who would give up ESSENTIAL Liberty to purchase a little temporary safety, deserve NEITHER liberty nor safety" Benjamin Franklin

12-09-2005, 10:56 AM	#6
lemieux@curbside AudiWorld Super User Garage is empty, add now Join Date: Dec 2002 Posts: 17,781	RS6-s can do with pump gas a bit more than what ko4-s do with the best prog on 100+ oct. now think what rs6-s would do with 100+oct and a good program .. and all this whithout going crazy with rs4 parts (intake mani, cams...) __________________ ************************************************ ************************************* "it's a B5 S4 ,it may break down, but its far enough ahead, by the time its fixed, you still haven't caught up." -best line i've heard AUDI B5 S4 detail info (pdf file) that everyone should read and have saved on his computer AUDI B5 RS4 study guide detail info (pdf file) FATS database VAG-COM LOCATOR ASP Hands down the "BESTEST" tuner out there.

12-09-2005, 11:06 AM	#7
djillusion AudiWorld Super User Garage is empty, add now Join Date: Jul 2000 Posts: 10,896	my question is: why havent tuners started to user K04/RS6 turbos with their kits? __________________ GO FAST / STOP FAST: KO4s \| ASP Fueling Kit \| AWE DPs + TPs \| AWE Intercoolers \| Miltek Super Dual Exhaust w/ Custom Tips \| 710N BPVs \| Stasis Motorsports \| APR Snub Mount \| UUC SS \| ECS Stage 4 Brakes \| ECS Rear Stage 1 Brakes \| V1 Hardwired \| Achtuning Oil Cooler \| RS4 Clutch \| Re-Surfaced Stock FW \| Samco TBB \| ASP TSB \| LIL SOMETHIN' ELSE: Euro Lights \| Fog Light Mod \| Custom A-Pillar w/ Prosport Boost Gauge \| "S4" Shift Knob / RS4 Alcantara Shift Knob \| Oettinger Front Grill / RS4 Grill \| OEM RS4 Front \| OEM RS4 CF Engine Covers \| Rear M3 Lip Spoiler \| 19x8.5" DCR Catalunyas \| 235.35.19 Bridgestone KDWs \| AL Sideview Mirrors \| 20G Phatbox \| Greddy TT \| RNS-E NAV \| Infinity Basslink \| 35% Tint \| Winter Setup: B6 S4 Avus 18" Wheels w/ 235.40.18 Hancook IceBear Winter Tires \| 255 lph fuel pump \| Zoldman O2 sensors \| OEM RS4 Alcantara Steering Wheel

12-09-2005, 11:14 AM	#8
PSmalls::DoggieStyle Elder Member Garage is empty, add now Join Date: Jan 2004 Posts: 30,257	AWE has been doing it for years with their "K16s" that are actually RS6 turbos. Another tuner is... in the process of making software for RS6 hybrids as well. I don't want to argue one way or another, but I'd take RS6 hybrids over straight K04s any day of the week.

12-09-2005, 11:17 AM	#9
djillusion AudiWorld Super User Garage is empty, add now Join Date: Jul 2000 Posts: 10,896	ah i see. i guess i personally wouldnt notice the difference to justify the additional cost imho. __________________ GO FAST / STOP FAST: KO4s \| ASP Fueling Kit \| AWE DPs + TPs \| AWE Intercoolers \| Miltek Super Dual Exhaust w/ Custom Tips \| 710N BPVs \| Stasis Motorsports \| APR Snub Mount \| UUC SS \| ECS Stage 4 Brakes \| ECS Rear Stage 1 Brakes \| V1 Hardwired \| Achtuning Oil Cooler \| RS4 Clutch \| Re-Surfaced Stock FW \| Samco TBB \| ASP TSB \| LIL SOMETHIN' ELSE: Euro Lights \| Fog Light Mod \| Custom A-Pillar w/ Prosport Boost Gauge \| "S4" Shift Knob / RS4 Alcantara Shift Knob \| Oettinger Front Grill / RS4 Grill \| OEM RS4 Front \| OEM RS4 CF Engine Covers \| Rear M3 Lip Spoiler \| 19x8.5" DCR Catalunyas \| 235.35.19 Bridgestone KDWs \| AL Sideview Mirrors \| 20G Phatbox \| Greddy TT \| RNS-E NAV \| Infinity Basslink \| 35% Tint \| Winter Setup: B6 S4 Avus 18" Wheels w/ 235.40.18 Hancook IceBear Winter Tires \| 255 lph fuel pump \| Zoldman O2 sensors \| OEM RS4 Alcantara Steering Wheel

12-09-2005, 11:19 AM	#10
WindyCityS4 AudiWorld Super User Garage is empty, add now Join Date: Mar 2003 Posts: 7,553	K04's don't have the failure rate that hybrids do. __________________ In a world of constant change, it is the learners that shall inherit the future. For the learned soon find themselves capable of living in a world that no longer exists. Autobahn Country Club (North, South, combined), Blackhawk Farms, Gingerman, Grattan, Mid-Ohio, Putnam Park, Road America, Sears Point, Thunderhill and "The Ring"

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