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FTW-k04R vs ZFR In need of turbo swap!!

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Old 11-05-2015, 07:07 PM
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Originally Posted by hawkssoccer11
makes me want one even more now and run some e47
I'm sure I could run another 1-2psi and I know for sure that I'm leaving power on the table with my midrange timing. It's definitely fun though. Doesn't stop pulling like the stocker did and I enjoy the extra turbo noises

#feedingmyinnerRicer
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Old 11-05-2015, 07:18 PM
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Originally Posted by T-Man
For those interested,

K04R - 381/394, 39lbs MAF and 32.5lbs VE - 24psi, same timing
I am getting similar results.

Stock K04 w/93 octane

Name: Screen%20Shot%202015-11-05%20at%206.22.01%20PM_zpswvrwzvix.png Views: 122 Size: 131.0 KB

Stock k04 w/E47

Name: Screen%20Shot%202015-10-21%20at%204.46.32%20PM_zpsw2n8dm0e.png Views: 148 Size: 130.3 KB

K04r w/93 octane:

Disclaimer: Tuning was still in progress when this log was done.

Name: Screen%20Shot%202015-10-21%20at%204.45.48%20PM_zpszw5puyhk.png Views: 121 Size: 132.1 KB
Last edited by Jn2; 11-06-2015 at 05:03 PM.
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Old 11-05-2015, 09:24 PM
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Real curious to see what one of these puts down. Would like to compare it with my k04+ runs. Can't believe no ones done it yet.
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Old 11-05-2015, 11:29 PM
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Jn2 what gas on k04r?
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Old 11-06-2015, 08:21 AM
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if i can here around February or march i want to get one and run some e47 and try for 400whp out of one
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Old 11-06-2015, 05:03 PM
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Originally Posted by tuned08ss
Jn2 what gas on k04r?
93 octane, won't do ethanol mix until we get the 93 tune nailed down.
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Old 11-07-2015, 06:49 AM
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Originally Posted by hawkssoccer11
if i can here around February or march i want to get one and run some e47 and try for 400whp out of one
I highly doubt you can get 400 out of it, but would be happy if you could. I'm guessing about 385 is going to be where it is. I just don't think the housing is big enough to move the air required to get there regardless of how big the wheel is.
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Old 11-07-2015, 11:50 AM
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I think it could on e47 or e85
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Old 11-07-2015, 02:39 PM
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Originally Posted by 63 Nova SS
I highly doubt you can get 400 out of it, but would be happy if you could. I'm guessing about 385 is going to be where it is. I just don't think the housing is big enough to move the air required to get there regardless of how big the wheel is.
390ish is definitely possible. I have a bit left on the table with mine.
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Old 11-07-2015, 03:19 PM
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Well I won't be dyno'n anytime soon


I think the seals went out. When I remove the intake there was a nice puddle of oil in the compressor housing. Started the car with MAF unplugged and oil started leaking out into the compressor housing. The blades on the wheel looked perfectly fine. So it may just need a rebuild
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Old 11-07-2015, 03:30 PM
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That sucks but why are you trying to go WOT at 158° coolant temp?
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Old 11-07-2015, 04:42 PM
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Originally Posted by T-Man
That sucks but why are you trying to go WOT at 158° coolant temp?
Because I knew it wouldn't do anything. This video was after I got off work, this issue started when I went to get lunch. so WOT at 158* didn't matter bc I knew it wouldn't make any boost. Was mostly to catch it on video

I'll be swapping in the stock K04 tonight.
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Old 11-07-2015, 04:46 PM
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Good thing you kept the stock k04 but that sucks
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Old 11-07-2015, 05:10 PM
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Originally Posted by Snail_SS
Good thing you kept the stock k04 but that sucks
Yeah was pretty bummed about it. Will tear it down when it's off the car to see what it needs. If it only need a rebuild I may contact TurboBay to see if they can do it, or find a local place to take care of it
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Old 11-07-2015, 05:11 PM
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Yeah I hope that's all it needs good luck man
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Old 11-07-2015, 05:19 PM
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Originally Posted by Jn2
Yeah was pretty bummed about it. Will tear it down when it's off the car to see what it needs. If it only need a rebuild I may contact TurboBay to see if they can do it, or find a local place to take care of it
Doesn't turbobay warranty the k04r?
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Old 11-07-2015, 05:41 PM
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Originally Posted by double clutch
Doesn't turbobay warranty the k04r?
1 year
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Old 11-07-2015, 07:02 PM
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Originally Posted by KMO43
1 year
^^^^^
Originally Posted by double clutch
Doesn't turbobay warranty the k04r?
I got this turbo from KM, so not sure how long he has had it but I'm not one to push the subject onto TurboBay. I didn't buy it directly from them. They are curious as to why it failed so I'm going to tear it down when its off the car.
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Old 11-07-2015, 07:54 PM
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Sorry for the bad luck man! Hope you get it sorted out and get a new/rebuilt R on there soon!
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Old 11-07-2015, 08:00 PM
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Originally Posted by Jn2
^^^^^


I got this turbo from KM, so not sure how long he has had it but I'm not one to push the subject onto TurboBay. I didn't buy it directly from them. They are curious as to why it failed so I'm going to tear it down when its off the car.
A local guy has mine that one was Nathan's
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Old 11-07-2015, 08:44 PM
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Originally Posted by T-Man
390ish is definitely possible. I have a bit left on the table with mine.
So you have dyno' it already? Or are you just going off an app? 390 may be possible but probably not real healthy. I put 372 down on a ko4+ on a conservative tune on e47. I don't think there is much to gain on the r over the + even though it's got a slightly bigger wheel. The compressor housing is just too small.
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Old 11-08-2015, 05:15 AM
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Ended up tossing in a low mileage LHU K04 in. Car runs fine again. Making 35lbs/min MAF and 30 VE now...I can totally feel the difference in power.
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Old 11-08-2015, 12:16 PM
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Originally Posted by Jn2
Ended up tossing in a low mileage LHU K04 in. Car runs fine again. Making 35lbs/min MAF and 30 VE now...I can totally feel the difference in power.
thats sad to see it didnt last long, that turbo was only on my car for a handful of months running 26psi before i took it off. hopefully you can get it rebuilt for cheap
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Old 11-08-2015, 01:58 PM
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Hopefully this isnt a reoccurring issue. I had plans for one of these this winter but ill hold off for a zfr if the durability is questionable.
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Old 11-10-2015, 11:11 AM
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Found out that my K04R has a small coolant leak from the coolant plugs nearest the exhaust manifold.

Anyone have any tips on whether the exh. manifold heat shield can be loosened and moved enough to access these plugs without having to pull the turbo? I haven't had any time to tinker with it and would just like to know what I'm getting myself into prior to digging in.

Edit - It needs to be noted that I take responsibility for this as I should have checked the plugs prior to installation.

Here's what I'm referring to -

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Last edited by T-Man; 11-11-2015 at 01:36 PM.
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