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TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

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Old 11-23-2005, 07:42 PM   #1
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Default So how long does the TT turbo last? I'm at 86k with my ASW expiring in Feb.

When should I look at having it rebuilt? Should I wait for it to fail or just take it of and have it reworked at say 100k or so?
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Old 11-23-2005, 07:49 PM   #2
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Default No reason at all to get a rebuild; K03sport would actually be a slight upgrade for>>>

you over your K03 - (I gather yours is a 2000.) You can get them very lightly used in fine shape for $200 or so, or a brand new one for $500 - that las figure is a bit of a guess on my part, but it's got to be close to that. "Rebuilding" could be labor intensive depending on what's being done, and may not be a good idea since tolerances are very tight in the small turbo - there may not be many parts you'd wnat anyone to try to repair, and doing so could be tricky. Get yourself a new or slightly used one. HAVING SAID ALL THAT, I would not expect yours to be even close to failing if it's had a halfway decent life, with regular, synthetic oil changes, no hard running when cold, and cool downs before shut off if its been run hard.
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Old 11-23-2005, 08:12 PM   #3
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Default My only other turbo car was a Supra, and their turbos are bullet proof and easy to rebuild if you do

need to.
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Old 11-23-2005, 10:29 PM   #4
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Default Is the KO3 a direct swap replacement or a mod. that requires all sorts of other stuff?

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Old 11-24-2005, 03:06 AM   #5
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Default K03 sport direct replacement for K03. No other stuff required.

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Old 11-24-2005, 03:51 AM   #6
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Default Re: K03 sport follow-up?

Are all 2000 180HP cars regular k03?

Will my Revo 93 program run this turbo just fine, and what type of performance improvements might be realized?

Many thanks.
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Old 11-24-2005, 04:52 AM   #7
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Default mine was still pushing 23 psi without issue at 113k upon trade-in....

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Old 11-24-2005, 07:03 AM   #8
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Default Believe all 2000s and some early '01s use the regular K03.

Not sure what you mean by "my Revo 93 program" - when you bought it, didn't you buy the one they list for your specific vehicle? Also, when these are installed, (either a chip that has to be installed, or I guess in Revo's vase they just flash it in directly) the installer has to select between an array of different versions of the Revo software based on your ECU number. There a number of different ECU versions within most model years, so the point is, a chip for a "2000 180 TT" will not work on all of them - you'd have to know if it was for ECU boxes ending in 'K', or 'L', etc. - those are just examples. But since Revo doesn't do actual chips, you shouldn't have a problem - whenever it's installed, they'll give you the right program for your ECU.

Turbo type isn't an issue, since that's factored into both the ECU's programming, and the code that Revo will install. Maybe their programming for K03 "sport"-equipped TTs is slightly more powerful, or has a slightly broader powerband, but that should be the only difference if any. Hope that somewhere in here I answered what you had in mind!
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Old 11-24-2005, 08:48 AM   #9
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Default So what's the difference between the K03 and the K03 Sport? Wheel trim? Porting? Both?

What are the gains?
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Old 11-24-2005, 10:52 AM   #10
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Default Re: So what's the difference between the K03 and the K03 Sport? Wheel trim? Porting? Both?

Try a search - it's been covered a million times here and on VW vortex 1.8T forum; I can't remember whether it is the intake or the exhaust turbine, but I believe the main or even only difference is that one of them is bigger on the K03sport.
All else being equal, MAX power would be a little higher on the K03 sport, and it has the ability to deliver a little better high-end blow. However, since these cars are engineered to deliver alot less then their max capability, the differences are not really significant unless you really tweak the cars and are staying with your stock turbo, whichever k03 variant that is. Obviously Audi was able to tune K03 powered cars to deliver the same 180 hp as the K03sports had later on becuse that was well within the efficiency range of both versions of the K03, and so only needed to tweak other parameters to deliver the same power.
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Old 11-24-2005, 10:52 AM
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