Timing
Thread Starter
MBWorld Fanatic!
Joined: Jul 2014
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2005 e55 AMG
Timing
Just did some more testing and these are my numbers at 6000rpm. Timing is at 15*, IAT is at 105* and boost is at 13.0psi. My timing I thought was higher but now that I have taken screen shots under power I see that it is not now. Can these engines handle more timing at full boost and what do you guys run? Seems a little low to me.
Thread Starter
MBWorld Fanatic!
Joined: Jul 2014
Posts: 3,342
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2005 e55 AMG
Right now just a simple obd connection to an I-pad. I do have a fuel pressure and AFR that logs but thats it. AFR is also at 10.8 at 6,500rpm. Bidding on a dashdaq right now so hopefully will have that soon.
Hulk those numbers I sent you in the pm where off on the timing by 8-10 degrees.
Hulk those numbers I sent you in the pm where off on the timing by 8-10 degrees.
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Joined: Dec 2011
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From: Florida
A Merc
Ya, the obd is only good for 2 parameters max, it's slow refresh rate. Get the dashdaq with the zt2 with the boost sensor and have the best thing to log.
Only 2 parameters from obd with dashdaq
Iats
Timing
Rest goes through the zt2
Only 2 parameters from obd with dashdaq
Iats
Timing
Rest goes through the zt2
MBWorld Fanatic!
Joined: Dec 2011
Posts: 4,599
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From: Florida
A Merc
It depends
You have to see of there's any retard, with your logging you can't see that at this time.
If the tune is calling for 18* but you see 14 or 15 doesn't mean it didn't hit 18* at one point that's where the logging will show you if there's dips in timing and you know if there's knock
You have to see of there's any retard, with your logging you can't see that at this time.
If the tune is calling for 18* but you see 14 or 15 doesn't mean it didn't hit 18* at one point that's where the logging will show you if there's dips in timing and you know if there's knock
Super Member
Joined: Feb 2013
Posts: 659
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From: SE MI
2005 Mercedes E55 AMG
He mentioned his IATs were at 105°. At that temperature, your computer is pulling 3.5° of timing due to heat so you're probably fine at 15. Stock cars hit 20-21 raw, before any timing retard
Last edited by rockthemullet; Jul 29, 2015 at 08:06 AM.
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MBWorld Fanatic!
Joined: Jan 2011
Posts: 1,239
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From: West
E55 AMG
Now whether or not the tuner will tell you what timing they are commanding....
I've had a hard enough time prying commanded AFR out of a certain someone let alone timing...if only we could tune these cars ourselves.
