Comp turbo failure less than a mile

knuckles899

I messed up and bought the staggered 9.5 / 10.5 RPF1 combo from Oakos Auto...it will probably be okay we'll see. I went back and fourth so many times, reading threads, searching forums I just pulled the trigger.

jwick

The stagger is fine but you want to keep it to stock stagger difference. The stock was 245/275, so go with 275/305.

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Senna-F1

Why did he stop the pull at ~6800 RPM?

knuckles899

He said something along the lines that his readout on the dyno stops there.....but it's tuned to redline. I thought that was a little weird and I'm not even sure what my rev limit is right now. Some of the members on My350z said the torque numbers don't look right for having 438hp and only 368tq. A suspicion is that I may have a VTC solenoid issue and I should try to see if I'm getting a full duty cycle out of them....I'm not sure how to even do that but will research that.

Ghost116

Is the octane limiting u? Or lack of fuel pressure? I’ve heard of a lot of guys getting stuck around 475. Planning on going bp next year, and hoping to break 500 in 93 octane.


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Boosted Performance

93 octane is not an issue up to 560-580whp.

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Ghost116

That’s what I figured. Prob end up with a fuel return just to be safe. But most pumps around me have 93


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knuckles899

**update long story short kept the car and Comp covered first turbo under warranty**

Since being tuned I've put on about 700 miles with no issues....until today. I lifted my car up to just check everything out underneath the turbo and exhaust are and noticed that the Comp Turbo oil-less zerk fitting is no longer there. Please keep in mind that this is the second turbo that was sent to me from Comp under warranty. At this time I am unsure on how bad this is. Without the zerk fitting being there I am assuming that the oil has been leaking out of the hole....how much and how long I do not know but I assume its not a good thing. The zerk fitting hole does not appear to be a threaded piece since no threads are visible on the zerk port. I will be sending Comp a email here shortly to see what they think happened but was hoping members with the boosted performance oil-less turbo kit can chime in or Sasha himself.

[IMG]20180331_200531_resized by , on Flickr[/IMG]

[IMG]20180331_200521_resized by , on Flickr[/IMG]

Heres a before pic before installation with it there for reference.

20170822_225340(1) by , on Flickr

SouthArk370Z

Remove some of grease from the hole (a Q-Tip is handy for such things) and see if any of the zerk is in there. This will tell you if it broke off or unscrewed itself.

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knuckles899

It doesn't look like there are any threads... when you look at the pic no threads are visible in the center housing.

Rusty

Might be a pressed in zerk that fell out since there are no threads.

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jchammond

If this is a pressed/drive in grease zerk & the only one on your Z that is lubricated;
look at your grease gun fitting & see by chance did it pull out the last time you greased it.
I've had this happen at work before & ended up tapping hole & using a thread in type.
Just a thought.

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knuckles899

I haven't greased it yet since I've only driven it around 700 miles or so. Good call though, I could see how a non threaded zerk could stick in the gun if it really wasn't pressed in tight.

SouthArk370Z

The threads would be below the camfer.

Or, as per Rusty, it was pressed in. I kind of doubt this as most grease systems are fairly high pressure, but I'm no expert.

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Rusty

I've worked on a lot of equipment that had pressed in zerk fittings. Had to replace a bunch of them too. Grease systems are not high pressure. Once you remove the gun. The pressure goes away. When greasing. Once you get the first fill of grease in. After that, you only need two to three pumps of new grease into the bearing. Any more then that. You CAN over grease the bearing and damage it. Some bearing housings will have a plug 180 degrees away from the zerk fitting. On these. You remove the plug and grease until you see some grease start to come out of the plug hole. When you do, stop greasing and install the plug.

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