gpopshop ko3/o4 hybrid question

[LEGO]

Does anyone know what the difference between this turbo http://www.gpopshop.com/kkkturbos.html and an actual ko4-15 is? My ko4-15 blew and I bought this turbo to put in. I currently have a pc16 setup and I'm wondering if it would be ok to run the turbo from gpopshop with my pc16 setup. The turbo supposedly has a compressor wheel 1 mm larger than the ko4 but I don't know about the shaft thickness and the turbine wheel. Please let me know what you think. Thanks!

[seanko04]

There are great people and the turbos are good. My friends has one in his car running the k04-15 file also it spikes and holds just like an original k04-15.

[auto_euroticaA4]

this doesnt sound to bad...

[FACT]

I was looking to send in my k03 and have the k04 internals swapped in and had the same question.

[LEGO]

Well I have it installed. The turbo looks good and pulls strong with the pc-16 tune. Doesn't seem like it's quite as strong as the ko4-15. Maybe its just me cause the car has been down for a week since the turbo blew. One thing that I have noticed is that the tag on the turbo is labeled ko3-029 and the impeller fins are the same as the ko3. There are 12 fins instead of 8 like the ko4-15. My car is still trying to burn out all of the oil out of the exhaust that went in there when the ko4 blew. Maybe it will seem faster to me then. Does anyone know if I need to break the new turbo in?

[GQ//S4]

Bump this up. I'm just wondering if anyone knows exatly about this turbo. I believe its just a ko3s with a 1mm larger compressor wheel that the ko4. Does the turbine wheel have a huge impact? Cause I believe the ko4 turbine wheel is 1mm larger than the ko3s. Also, how much of an impact does the impeller play since the ko4 has a more agressive 8 fin design but the gpopshop turbo has the 12 fin design of a ko3s. I just don't want to blow this new turbo by running it on the pc-16 tunning.

[GQ//S4]

By the way, this is Lego posting on my buddy's account

[thenofjboy]

i recently blew my KO3 & sent it away to the gpopshop to get upgraded to the KO4 spec. IIRC mainly has a larger compressor wheel than the stock KO3 - as you said. I have talked to Jim & Gerry there a couple times - there are real helpful. i dont think mine is the hybrid you are referencing- couple months back they had more options to choose from. i paid a little more to get it upgraded to the KO4 spec/internals. im still running stock KO3 chip but going to awe in the next week or so. but def give them a call and see whats up -

[GQ//S4]

Taken from GPOP's site:

"Parts Warranty

All of the parts in the rebuild kits carry a 12 month/50,000 mile warranty against defects in the material or workmanship. The warranty would not cover damage to the parts due to oil related problems, improper installation, foreign object damage, or the like. In order to warranty a part, it must be returned to us for inspection. In most cases, we would then need to forward the part to the manufacturer in order for them to do their own inspection which would be done by a highly qualified engineer. This isn't a long process, but does require a little time....about a week to ten days.




Turbo WarrantyWe warrant our turbos to the original purchaser against defects in the materials and workmanship for:

*Stock Automotive & Diesel Applications: 12 months

*All Performance Applications: 6 months

This warranty does not cover failure of the turbo that is due to oil related problems, installation problems, foreign object damage, any modifications made to the turbo by the purchaser, or if the turbo has been disassembled by anyone other than The G-Pop Shop.

If turbo failure is due to incorrect installation, foreign object damage, or an oil related problem we will still gladly take a look at the turbo for you, inspect it, and let you know what is wrong or what caused the problem. We can then proceed to take care of the repairs if that is what you decide you would like to have done. "



All things said and done, the turbo oiling/running fine, I think you are safe running the turbo to your normal specs and enjoying it without worry, and if it does pop it will be due to a faulty part on the turbo, not because of over-driving it or running it dry.

[LEGO]

Yeah but it also depends on tuning. One can't run pc-16 tuning on a ko3, just as one can't run gtrs tuning for a ko4. I don't know if they will warranty a turbo that blows because one was using the wrong tuning for the turbo. I will see if I can give them a call. So far the turbo is running fine. My exhaust is still smoking though cause of all the oil that caked up in there from the blown turbo.

[urban96]

Yeah but it also depends on tuning. One can't run pc-16 tuning on a ko3, just as one can't run gtrs tuning for a ko4. I don't know if they will warranty a turbo that blows because one was using the wrong tuning for the turbo. I will see if I can give them a call. So far the turbo is running fine. My exhaust is still smoking though cause of all the oil that caked up in there from the blown turbo.

wouldnt the tuning hurt the engine before hurting the turbo anyways?

[LEGO]

I have no idea if it'd hurt the engine first or just cause the turbo to fail. I hope just the turbo, but I don't know. Everything seems like it's working fine for me though.

[Yaktizzle417]

im rocking one, i love it.

only im on a custom shady diy custom tune hahaha

[seanko04]

Dont worry about it. It is on K04-15 specs. My boy had the same thing done and he had been running the k04 file for some time now.

[GQ//S4]

Yeah but it also depends on tuning. One can't run pc-16 tuning on a ko3, just as one can't run gtrs tuning for a ko4. I don't know if they will warranty a turbo that blows because one was using the wrong tuning for the turbo. I will see if I can give them a call. So far the turbo is running fine. My exhaust is still smoking though cause of all the oil that caked up in there from the blown turbo.

Well the only way that the turbo would blow from the software is if it were over-boosting, which its peaking at 18 psi right now, which is WAY below the peak pressure allowed on a ko3 or ko4, and since your oil is feeding fine, you have nothing to worry about. Its the same thing with S4 boys going to stg 3 while still running a GIAC stg 2 (ko3) file chip, it runs fine, just isn't optimized for the turbo, and I would speculate that your turbo is a better match in that comparison to your tuning.

I keep telling you that you're worrying too much! Your cars running fine now, oil flow is clear, compression is decent, relax! Put the boost machine back in, that turbo's good for 25 psi at least, which is way more than you're going to use.

[LEGO]

Well I got a response. This kinda puts my mind at ease.

Hello,

The turbo you purchased will work perfectly with your set-up. There are two differences here our turbo has a larger compressor wheel (1mm) and our turbo has a smaller turbine wheel (1mm). The trade off here is equal, so there really is not much difference between the two. Let us know if you have any other questions or if you need anything else. Thank you,

--
Jim & Gerry, G-Pop Shop
Specializing in rebuilt and new turbos,
turbo upgrades, turbo rebuild kits, and turbo parts
www.gpopshop.com
(479)-751-7966