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Rods and Pistons?

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Old 11-09-2004, 07:48 AM
  #41  
Daking350z
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Notice in this picture how the piece of piston that broke off apparently melted itself back to the top of the piston in 2 seperate spots!!
Attached Thumbnails Rods and Pistons?-piston2.jpg  
Old 11-09-2004, 07:50 AM
  #42  
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Here is the second shot of the melted material..
Attached Thumbnails Rods and Pistons?-piston3.jpg  
Old 11-09-2004, 07:52 AM
  #43  
Daking350z
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Here is the skirt of the piston.Notice the grooves cut into it.The block appears to be fine with the exception of one or two hairline scratches I am hoping a good honning will clean up and not have to overbore...I know you can not feel them to the touch but the scratches are visible..
Attached Thumbnails Rods and Pistons?-piston4.jpg  
Old 11-09-2004, 07:53 AM
  #44  
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And here is the piston next to the coorisponding head chamber.Notice the classic detonation marks..Im guessing the heads have to be re worked at this point..
Attached Thumbnails Rods and Pistons?-piston5.jpg  
Old 11-09-2004, 07:54 AM
  #45  
Daking350z
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Here is a close up of the heads..look like I need new valves and a good port and polish No?
Attached Thumbnails Rods and Pistons?-hads1.jpg  
Old 11-09-2004, 08:01 AM
  #46  
NismoGCoupe
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are these pic from your motor?
Old 11-09-2004, 08:23 AM
  #47  
Daking350z
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Originally posted by NismoGCoupe
are these pic from your motor?
No My buddies motor that Blew..I took the block from him..
Old 11-09-2004, 08:56 AM
  #48  
Lorca@Z1
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Originally posted by Daking350z
Here is a picture of that #6 piston..It was the last one on the drivers side,the last one on the "returnless" fuel system and clearly ran the leanest..
Of all the 350Z pistons that I have seen with cracked and broken ringlands, that is the only one I have seen where the piece actually broke off in the combustion chamber.
Old 11-09-2004, 09:06 AM
  #49  
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Originally posted by Daking350z
Here is the skirt of the piston.Notice the grooves cut into it.The block appears to be fine with the exception of one or two hairline scratches I am hoping a good honning will clean up and not have to overbore...I know you can not feel them to the touch but the scratches are visible..
If the OEM had not used a PM skirt coating the groves in your bore would have probably been significantly worse.
Old 11-09-2004, 08:26 PM
  #50  
mchapman
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Originally posted by gq_626
But the 800hp number they are quote must be crank HP. There is NO POSSIBLE way those turbos can effciiently flow 800whp worth of air. They are much smaller than the Greddy TT's, and even the Greddy will poop out at 700-800whp worth of air.
I dont know if this helps shed some light on the ability of the APS turbos or not but...

The APS TT kit uses two GT25/35R turbos, I dont know any other specs as these would contribute to the final flow abilities but one GT25/35 (non R version) on a RB25DET can put out ~370rwhp@around 17psi with various mods like cams etc, this is one example and im sure there are other lower and higher examples.

Last edited by mchapman; 11-09-2004 at 08:35 PM.
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