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Unsafe timing map?

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Old Sep 11, 2006 | 01:58 AM
  #31  
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From: Oxfordshire
Hi

I think the fuel map is pretty bad as well. There has been adjustment to the vacum area, where the car should be running closed loop, why would you change the fueling there?

The horizontal variation between the cells is very strange to, look at the 2500 RPM section, 10.2 to 9.5 in the 200 to 220 load cells? It doesn't look like its been tuned for part-throtle running either.

MB
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Old Sep 11, 2006 | 04:41 AM
  #32  
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From: sc
Remember the guy with AEM who had less peak timing (14) but blew up his motor on 21 psi? We agree the knock protection will save the motor but why feed so much more than it can take, assuming that is.

Logs will really tell
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Old Sep 11, 2006 | 04:52 AM
  #33  
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wow that's really aggresive it looks like a time bomb tic tic tic tic tic boom that must have been riding on the low octane map all day every day
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Old Sep 11, 2006 | 05:26 AM
  #34  
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Originally Posted by tuning g
must have been riding on the low octane map all day every day
Originally Posted by heyzeus11
the high and low timing maps were both equal to each other. His car was tuned by one of the local shops
So now we know that we can't blow up our engines with stock ECU and ignition tuning alone. Nontheless, one tank of bad gas, or one case of MBC sticking closed and that engine is hurt.
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Old Sep 11, 2006 | 06:55 AM
  #35  
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Stock coils can sometimes require additional timing, especially if their older and have some trouble recycling.. I was running aggressive timing (not at peak torque like that, let me be clear there I never ran more than 10-11 degrees at peak torque, and that was pushing it) but when I added a DLI2, the coils "woke up" and I had to pull at least 2 degrees from my entire timing map..

This map "scares" me.. But we don't know what conditions it was tuned under, and what its purpose is for..

I have found on the stock turbo I made much better power running more timing and less boost.. I really can't say too much more about this map simply because there may have been a reason for it to be done that way..

Again.. There's no point in speculating anymore until theres a good log.. We need to know the AFRs this car is seeing, if this car has a boost gage problem reading 24psi when its actually 15-17 psi.. then I can see why it might have gotten that aggressive.. Plus if this was dyno tuned, where's the dyno chart and actual results?
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Old Sep 11, 2006 | 08:05 AM
  #36  
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From: sc
Your correct, if tuner was just setting the map to whatever condition was requested or given to him, then we can't judge whatever amt of timing is on there.

With 17psi, racegas, cold plugs, and/or malfunctioning/weak ignition pulse, then I can see a repected tuner (unfamiliar with evos) setting that amt of timing
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Old Sep 11, 2006 | 09:43 AM
  #37  
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From: Hampton/NN, VA
Originally Posted by mchuang
Anyways if it is not your map then at least do the guy a favor and put a stock map back in his car and tell him to take it to a professional please.
I offered and he did not want me to.
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Old Sep 11, 2006 | 12:09 PM
  #38  
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MalibuJack,

I have to hand it to you. You are always very diplomatic in this forum. This is something I am trying very hard to change to, I appreciate your stance. Keep on truckin.
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Old Sep 12, 2006 | 06:37 PM
  #39  
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holy crap and his engine didnt knock its self to peices with that timing....thats nuts....
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Old Sep 12, 2006 | 06:54 PM
  #40  
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Add some meth to the mix!
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Old Sep 12, 2006 | 08:20 PM
  #41  
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Originally Posted by DRFTKNGG
Add some meth to the mix!

I beleive the tuner who came up with that timing map might've been using some type of "meth".
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Old Sep 12, 2006 | 08:37 PM
  #42  
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I think its a Subaru timing map that someone loaded in error - those Subarus can really hold the timing (maybe they just combust slower)
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Old Sep 12, 2006 | 10:00 PM
  #43  
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With that kind of timing....meth could help out a whole bunch. Rid the knock! just need to lean her out a bit...
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Old Sep 12, 2006 | 10:02 PM
  #44  
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Originally Posted by DynoFlash
I think its a Subaru timing map that someone loaded in error - those Subarus can really hold the timing (maybe they just combust slower)
LOL...Can subies breath that high..?
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Old Sep 13, 2006 | 05:55 AM
  #45  
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From: sc
Subies have small lungs, I don't know what compression they have but I bet what Al said likely describes what happened here.

About a year or two ago another individual (unfortunately for him standalone AEMEMS) got tuned by his local tuner. Had the same 15 degrees at peak, 2000 rpm wide. Without stock ECU protection his engine popped.https://www.evolutionm.net/forums/sh...ght=rolo+blown

Last edited by C6C6CH3vo; Sep 13, 2006 at 06:16 AM.
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