K04 Reworked Turbo Owners, Please Chime In...

[Boost'dBeta2]

WG location makes no difference and is not needed until you have a BIG turbo. it will prevent boost from RISING above target from inadequate flow. i am seeing the opposite NO EXTRA boost at all. and yes i have the pump upgrade. i think it very well may be the stock compressor housing is choked

I believe that the housing is your issue,plain and simple, but if it were a wastegate issue an external gate offers you the ability to swap out springs and such to keep the valve from opening until exactly when you want it to.
As far as the wastegate I was thinking more along the lines of the adjustability and precision they offer. I noticed a difference in swapping from an internal to an external almost immediately on a small/med. turbo with moderate levels of boost. I have seen some Subaru and Mitsubishi guys swapping to external gates as lows 10-12psi on TD04 15g's and 13t's...those aren't exactly big. An external gate is not really cost effective on low boost setups, but external's are almost always better.

 

[jville]

so with the upgraded turbo your running 20 psi. Do you have an upgrade tmic or fmic? i tried to do a search to find out myself but man ur a frequent poster so i gave up, but very nice 12.829 1/4 @ 107.9mph. I mean after all is said and done would you suggest this turbo upgrade rather than a bigger one?

 

[dan7225]

do they port and polish both housings? and what process do they use to do so? maybe extrude honing could help open up the housings a little. (stoned)

 

[AutoXRacer]

From all the posts I've read in different forums...it doesn't seem like the reworked stocker is worth it. Unless you are just looking for a replacement turbo. I'll wait till mine fails, hopefully not anytime soon. I might go with the GT2871R, since its a little bigger, but not a monster like those GT30 or GT35 series...

 

[MS3_Kendall]

From all the posts I've read in different forums...it doesn't seem like the reworked stocker is worth it. Unless you are just looking for a replacement turbo. I'll wait till mine fails, hopefully not anytime soon. I might go with the GT2871R, since its a little bigger, but not a monster like those GT30 or GT35 series...

I am waiting to get the reworked K04, but not of choice. My stocker went bad because of the seals and unfortunately I did not have the money for the garret series turbo. I will eventually swap out of the reworked K04.