cheaper solution for replacing Turbos?

[mike's machine]

I just have a bunch of Q's about turbo.
Is there any cheaper solution for replacing turbos?
If you stick with new K03's, is it not that reliable?
What if moving up to K04's, RS6 turbo's are too much?
Is there any better solution for daily drivers?
What happens if you put new K03's with chipped ECU?
Will it still fail soon???
Can you use some turbo's from p-car's?
I almost have 120K miles, but my turbo's are working fine YET...but I'm afraid if my turbo's will break on me any time soon...

[Jung]

all of hte info you will ever need about turbos has already been discussed. search search search.. it will be your most useful tool on here.
no there is no cheapersolution to replace turbos unless you do your own labor (pull engine, replace stuff, put it back in)
k03s are k03s, they break, go k04 or rs6.
no rs6's are not too much, in fact they are better.
looking to save gas? k03s
new k03s + chip = same as anything, they will last a while, it all depends. some die after 5k, some last over 150k miles.
one last thing... SEARCH! /thread

[McKennaS4]

looking to save gas? - k03s? what is your reasoning behind that. if you drive a full stage 3 car out of boost you will yield almost the same mpg as a stock k03 car out of boost. not that you will but if you were worried about gas id still go k04. to do all that labor to put k03s back in is the dumbest thing anyone ould ever do.. not only are k04s MUCH more reliable, they raise the value AND potential of the car. k04s or nothin for a DD that you dont want CRAZY hp out of.

[lil' is 300]

looking to save gas? - k03s? what is your reasoning behind that. if you drive a full stage 3 car out of boost you will yield almost the same mpg as a stock k03 car out of boost. not that you will but if you were worried about gas id still go k04. to do all that labor to put k03s back in is the dumbest thing anyone ould ever do.. not only are k04s MUCH more reliable, they raise the value AND potential of the car. k04s or nothin for a DD that you dont want CRAZY hp out of.

Yep... and now END thread.

[Jung]

while this is true ^, with 4's one is more tempted to go into boost more often, and then you'd use more gas! i still retain my point... It would be pretty fruitless to do all the work and use stock turbos again.

[AudiTechS4]

search

\end thread

[lil' is 300]

while this is true ^, with 4's one is more tempted to go into boost more often, and then you'd use more gas! i still retain my point... It would be pretty fruitless to do all the work and use stock turbos again.

That has everything to do with the guy behind the wheel, not what turbos are under the hood. Driving a K03 and K04 car in the exact same manner will not show a difference of MPG...you can get total shit mileage on a K03 car compared to a K04 car if you drive like an idiot.

[Overboostin]

That has everything to do with the guy behind the wheel, not what turbos are under the hood. Driving a K03 and K04 car in the exact same manner will not show a difference of MPG...you can get total shit mileage on a K03 car compared to a K04 car if you drive like an idiot.

Not taking sides here, but if you have fueling, wouldn't the bigger injectors use more gas therefore decreasing mileage? Talking about a stage 3 car here with fueling, not just k04s.

[AudiTechS4]

nope driving without boost will have the same gas mileage as a stock car will as long as the tune has the stock maps under boost.bigger injectors just lower the duty cycle to achieve the lower fuel an keep stock drive ability while not boosting

[McKennaS4]

not true audisport. the point of tuning for stage 3 is to NOT use stock fuel maps. wy would u blow more air with more turbos and not dump more fuel in. that said... when comparing gas milage, noone refers to gas milage at wot lol. id say at wot a stage 3 car get 4mpg and a stock gets 7mpg haha. but off boost, they both will yield about the same mpg. where di u hear that you upgrade fuel injectors are changed ONLY to decrease duty cycle? just an fyi it is possible to max out injectors...

[McKennaS4]

btw what a dumb argument that doesnt even answer his question lol.

[lil' is 300]

btw what a dumb argument that doesnt even answer his question lol.

Dumb subject deserves a dumb argument. This thread was over before it started.

[JMTx86]

Dude take the turbos out, get some headers and go all motor and NAWZ

[mike's machine]

I know this has been all repeated, but there are arguments everywhere it's hard to find The Answer...someone says using K04's with stock everything else will work fine, someone says not, someone says with stageI ECU, it would work better...
And as long as my understand, if you want to do it right, bigger turbo requires fuel system upgrade also, and that cost fortune!!! Turbos cost around 2K, but everything else you need is even more.
Here's my last question...can you use bigger turbos with stage I ECU, with CAI, and maybe some exhaust upgrade? Will it work no better than stock, or will it work some what better than big turbos w/stock everything?

[2ndEngineS4]

I've been running KO4's with stock EVERYTHING for the past 2 years with an APR Stage I chip and downpipe program. No problems whatsoever. Not even a CEL 82K miles. Also have the 100 octane program, no problems there either. Running 16 lbs of boost at WOT on Cali 91 craptane and the car runs very well. Do it.

Thread done.

[mike's machine]

so does K04's + stage I chip tuning makes more power than K03's + stage I chip tuning?
or the same but just a lot more reliable?

[Cole]

so does K04's + stage I chip tuning makes more power than K03's + stage I chip tuning?
or the same but just a lot more reliable?

This question has been argued to death. The boost is measured AFTER the turbos at the intake. While K04 turbos are SLIGHTLY bigger and run a TOUCH cooler, the PSI being produced by the turbo will be the same until you change the software driving it. 16psi =16psi period.

The real gains in a K04 is that it can handle flowing much higher levels of boost. 21-25psi range. A K03 will not do that well. So the real power is not in just swapping the turbos, but all the supporting software, hardware to use the turbos to their full extent.


When we swapped in my K04s I had a chance to go dyno it before we did anything else. We actually did the K04s and piggies at the same time. My car showed a peak HP DROP of 5hp over it's previous dyno. I could swear the care "felt" faster but the dyno showed different. Actually made sense because my software was set up for the spool of a K03, not a K04 so it was running out of it's efficiency range a touch.

Add the software and fueling and it is a totally different story.

[2ndEngineS4]

so does K04's + stage I chip tuning makes more power than K03's + stage I chip tuning?
or the same but just a lot more reliable?

Same but more reliable. Truthfully, I can't scientifically say whether it's the same or less but definitely not any faster than before. It runs just as well as any decent APR stage II+ I would say. . .for now.

[AudiSportB5S4]

not true audisport.

hey leave me out lol, you mean auditech