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Help me understand K04s vs K04/RS6

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Old 11-29-2006, 05:56 PM
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Default Help me understand K04s vs K04/RS6

I understand the RS6s have larger internals. If you ran the RS6s with an OTS fueling & software such as the AWE kit, would you basically be at the same hp but have a slightly more efficient turbo?

To fully take advantage of the RS6s would you need custom tuning? Is one more reliable than the other?

What is the hp difference between the two? AWE kit for K04s is about 450, what would RS6s be? Thanks and sorry for the n00bish question.
Old 11-29-2006, 06:25 PM
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Default K04/RS6 turbos use the RS4 K04 turbine wheel, not the RS6 wheel ;)

and AMS also has software for the K04/RS6's.
Old 11-29-2006, 06:30 PM
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Is an AMS K04/RS6 car a Stage 86?
Old 11-29-2006, 06:34 PM
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Default you need Specific tuning to get the extra power out of it.....if not, you are getting just the same

HP as a Vanilla K04 if you run it in conjuction with a K04 based kit. If anything, your spool up may be a "tad" slower so the car might actually be a hair slower off the line/boost. Just look at Zev and Bauers car from last years Euro Tuner GP. They both ran the same AWE fueling kit, Zev with PJ K04s and Bauer with K04/RS6. Both made about the same whp on the Dyno (436 Zev to 434 Bauer). The diff is that you can run more boost at a more effcient level with the K04/RS6 Brids', espcially if they have been optioned out correctly. If a K04 can run 20-21 psi comfortably, the K04/RS6 could run 23-24 psi comfortably, thus making more power, But again, you need the tuning to take advantage of this, or else it is to waste.
Old 11-29-2006, 06:34 PM
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EPL does as well
Old 11-29-2006, 06:35 PM
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Stage EightySixTeenYo'!!! =)
Old 11-29-2006, 06:43 PM
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Default in all fairness you can't compare Bauer's car as a true K04/RS6 car......

it's not my place to give out details but just trust me that you can't use his "K04/RS6" setup as representative of our K04 based K04/RS6 hybrids.

Also in spoolup, the RS6 wheel is minimally heavier than the RS4 K04 wheel. The fact that it makes boost at a lower shaft speed than the RS4 K04 wheel more than makes up for any increase in lag over plain K04's. Note that most K04/RS6's have clearanced turbine housings as well.
Old 11-29-2006, 07:23 PM
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Default good question mark!

I see you're considering other options

Not sure what you're looking for here...are you considering running hybrids on ko4 tuning or are you thinking of going all out hybrid w/ custom tune?

I think a custom tune at your altitude would be very beneficial with a hybrid setup...so long as your hardware is right

ygm regarding EPL
Old 11-29-2006, 07:33 PM
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Default is it the lack of options? also......

u must agree that proper tuning key to extracting the power out of the "Birds"?
Old 11-29-2006, 07:42 PM
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Default nothing to do with options......

i agree that proper tuning is key to extracting the power potential out of the hybrids, but there are advantages to them even running similar boost levels as a K04.


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