Build Threads Want to document the progress of your build? Do it here!

99mx5's ARTech EFR build

Thread Tools
 
Search this Thread
 
Old Mar 26, 2012 | 12:28 PM
  #41  
99mx5's Avatar
Thread Starter
MFz Regular
 
Joined: Jul 2011
Posts: 132
From: Las Cruces, NM
Default

That's the plan.
Old Mar 26, 2012 | 12:33 PM
  #42  
flying_solo's Avatar
MFz Fanatic
iTrader: (1)
 
Joined: Nov 2011
Posts: 1,192
From: Gurnee, IL
Default

crap, this should be a warning to me eh
Old Mar 26, 2012 | 01:48 PM
  #43  
Schadenfreude's Avatar
MFz Regular
 
Joined: Dec 2011
Posts: 486
From: Chicago
Default

Hope it all gets better!
Old Mar 26, 2012 | 07:28 PM
  #44  
sixshooter's Avatar
Moderator
 
Joined: Jul 2011
Posts: 1,902
From: Tampa, FL; Lake Jackson (Atlanta), GA
Default

Please post a pic of your spark map so we can asses our level of risk.
Old Mar 26, 2012 | 08:38 PM
  #45  
flying_solo's Avatar
MFz Fanatic
iTrader: (1)
 
Joined: Nov 2011
Posts: 1,192
From: Gurnee, IL
Default

Did you melt a piston or throw a rod? I'm really sorry to see you lose an entire weekend, but it looks like you have the skills to rebuild her better than ever.
Old Mar 26, 2012 | 11:42 PM
  #46  
99mx5's Avatar
Thread Starter
MFz Regular
 
Joined: Jul 2011
Posts: 132
From: Las Cruces, NM
Default

Thanks guys, I started stripping the spare block today. I'm shooting for a rebuild for the next event. I wasn't detonating so I'm thinking a rod failed.

Here is my spark map. It is based on the one posted by Ben:
Attached Thumbnails 99mx5's ARTech EFR build-ari_spark_map.jpg  
Old Mar 27, 2012 | 07:34 AM
  #47  
sixshooter's Avatar
Moderator
 
Joined: Jul 2011
Posts: 1,902
From: Tampa, FL; Lake Jackson (Atlanta), GA
Default

Hmm. My spark map is pretty conservative but you are using 6-7 more degrees everywhere in boost. I know I'm leaving a lot on the table when it comes to power, but you might have kicked the table over and stolen the chairs.
Old Mar 27, 2012 | 08:04 AM
  #48  
RedTurboMiata's Avatar
Red To Go
 
Joined: Jul 2011
Posts: 2,600
From: Canton, MI
Default

Originally Posted by sixshooter
Hmm. My spark map is pretty conservative but you are using 6-7 more degrees everywhere in boost. I know I'm leaving a lot on the table when it comes to power, but you might have kicked the table over and stolen the chairs.
I think that's one of the funniest ways to put it. Lol
Old Mar 27, 2012 | 08:36 AM
  #49  
MF-Brain's Avatar
Administrator
iTrader: (1)
 
Joined: Jun 2011
Posts: 1,233
From: Arlington, Va
Default

I'm running about 3 degree less at the same boost level he was running was it blew (150kPa). IIRC the rods are more or less the same, but I have a CR of closer to 8.9 and you have a 9.5:1 cr...

But, I would never be running >9.0:1 AFR...which on your logs posted on mt.net show you were hitting between 9.2 and 8.8:1 in boost.

I really think all that extra fuel was washing down the clyinder walls (so contaminated oil and maybe metal/meatl contact from rings) and increasing pressures caused things to break.
Old Mar 31, 2012 | 01:58 AM
  #50  
99mx5's Avatar
Thread Starter
MFz Regular
 
Joined: Jul 2011
Posts: 132
From: Las Cruces, NM
Default

I pulled the plugs. They do not indicate a rich mixture.



All times are GMT -5. The time now is 07:17 AM.