In response to K04 turbo reliability versus K03

donistook · 08-04-2002, 01:01 PM

You've got to realize that the K03s are still well known to take a dump when only run at stock boost levels which is only about .6 to .7 bar.

The stock RS4 runs more boost than that.

I would venture to bet that every single person here in the US that has switched to K04s will be running higher levels of boost than the stock K03 original figure.

If you want to make things even, talk to someone that has switched to K04s into lowering their boost to stock S4 boost for a year or two and then look at the results....I don't think that you will find anyone willing to do that....because why have they switched if it wasn't to gain higher horsepower...and they are going to be running at least .8 bar or greater. We have raced with K04s for two years and we run consistently with 1.2-1.4 bar and have NEVER had a K04 problem....

Don Istook

Bryce · 08-04-2002, 01:06 PM

Jeremy Clarkson · 08-04-2002, 01:08 PM

jyoteen · 08-04-2002, 01:28 PM

poopeter-el sigthief · 08-04-2002, 02:15 PM

DanosS4 · 08-04-2002, 02:18 PM

donistook · 08-04-2002, 02:54 PM

donistook · 08-04-2002, 02:55 PM

Kent L · 08-04-2002, 03:22 PM

Stock afterrun coolant pump correct? Thanks.

donistook · 08-04-2002, 03:49 PM

08-04-2002, 01:01 PM	#1
donistook Junior Member Account #: 1510 Join Date: Mar 2000 Posts: 660	In response to K04 turbo reliability versus K03 You've got to realize that the K03s are still well known to take a dump when only run at stock boost levels which is only about .6 to .7 bar. The stock RS4 runs more boost than that. I would venture to bet that every single person here in the US that has switched to K04s will be running higher levels of boost than the stock K03 original figure. If you want to make things even, talk to someone that has switched to K04s into lowering their boost to stock S4 boost for a year or two and then look at the results....I don't think that you will find anyone willing to do that....because why have they switched if it wasn't to gain higher horsepower...and they are going to be running at least .8 bar or greater. We have raced with K04s for two years and we run consistently with 1.2-1.4 bar and have NEVER had a K04 problem.... Don Istook

08-04-2002, 01:06 PM	#2
Bryce Elder Member Account #: 1414 Join Date: Mar 2000 Posts: 10,169	Curious.. what oil do you use also.. TIA __________________ '01.5 S4 Avant gone but still have '82 4000S AWOT Braintrust #180 n00b index = 2.848507031 A.S.S. = Association of S4's in Sacramento Pics of long ago Audi Events and Track/Auto-X days In a world filled with clueless sheep buying SUVs, minivans, and bland automotive appliances, I figure I must be doing something right if my car disturbs their delicate sensibilities. It's like a bright yellow one-finger salute as I pass and they become tiny specs in my rear view mirror. :)

08-04-2002, 01:08 PM	#3
Jeremy Clarkson Member Account #: 25679 Join Date: Sep 2001 Posts: 11,572	Out of curiosity, how do you guys let the turbos cool after a race?

08-04-2002, 01:28 PM	#4
jyoteen Member Account #: 439 Join Date: Mar 2000 Posts: 32,565	I do believe Don mentioned that they have a manually operated cooling fan thingamabob.

08-04-2002, 02:15 PM	#5
poopeter-el sigthief Member Account #: 36951 Join Date: May 2002 Posts: 2,193	a thingamabob huh? where can I buy on of those?

08-04-2002, 02:18 PM	#6
DanosS4 Member Account #: 33628 Join Date: Mar 2002 Posts: 11,640	I sell you one

08-04-2002, 02:54 PM	#7
donistook Junior Member Account #: 1510 Join Date: Mar 2000 Posts: 660	We just let the coolant pump run for about 3-4 minutes

08-04-2002, 02:55 PM	#8
donistook Junior Member Account #: 1510 Join Date: Mar 2000 Posts: 660	Royal Purple Racing Oil-Racing 21 (about 10W30)

08-04-2002, 03:22 PM	#9
Kent L Senior Member Account #: 19404 Join Date: May 2001 Posts: 8,017	Did you attach a seperate switch to the coolant pump? Stock afterrun coolant pump correct? Thanks.

08-04-2002, 03:49 PM	#10
donistook Junior Member Account #: 1510 Join Date: Mar 2000 Posts: 660	Yes...we just put in a toggle switch with direct 12V...very simple

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