Besides detonation, what other factors are invloved with the ECU 'pulling' timing? - Page 2

STLSTI · 02-28-2007, 11:42 AM

What's your target timing at 4k,5k,6k? and what's the best the car is giving you for those RPMs
Also is you DAM set to 1.0

STLSTI · 02-28-2007, 11:45 AM

Quote:

Originally Posted by flatthump

If you have negative values in the 1.9 load column, does that also correspond to the all loads above 1.9?

I think so, but is not my final answer and I'm not smarter than a fith grader

flatthump · 02-28-2007, 12:11 PM

The first log is with Crysal and Wolf's rescaled DA and PI map.

The second one is the same map that I modified to run 2 degrees less total ignition everywhere. Same result though.

keep in mind these are the only data logs i could find on this comp. I will get more conclusive ones later

Thanks,
Steve
TUNER_070205222131.zip

TUNER_070208191419.zip

flatthump · 02-28-2007, 12:15 PM

Oh....Da is all at 10...A B and C tables...

06stiman · 02-28-2007, 12:57 PM

Quote:

Originally Posted by flatthump

At about 5000rpm every single time..Actually...I think I have a few logs on this laptop that can confirm the problem.

I have to see if I brought my HASP key though...

Funny you mention that...datalogs of my latest tune also sometimes show the dynamic advance down a degree or two in the 5000-6000 rpm range. My car seems to be really sensitive in this area. Most of my logs show a steady DA of 8 throughout WOT pulls, but sometimes I'll see the DA drop to 6, but only in the 5K-6K range. Everywhere else it's still the max 8. Really weird considering I always run at least 95 octane and my timing curve really isn't that agressive (18 at 4000, 19 at 4400, 20 at 4800, 21 at 5200, 22 at 5600, 24 at 6000, 26 at 6400, and 30 at 6800).

flatthump · 02-28-2007, 01:04 PM

Hmmm this is weird...I would of expected a problem around peak torque....not at 5000 rpm...

You wouldnt know by driving it that it is pulling timing...It feels really strong..

Oh I noticed you have motor mounts too....Hmm

La Mer · 02-28-2007, 01:06 PM

ot: strong after 5K?! Are you sure you are driving an STI?

06stiman · 02-28-2007, 01:07 PM

Quote:

Originally Posted by La Mer

ot: strong after 5K?! Are you sure you are driving an STI?

Yep, mine feels really strong 5K+ too...must be the tuner.

La Mer · 02-28-2007, 01:08 PM

Quote:

Originally Posted by 06stiman

Yep, mine feels really strong 5K+ too...must be the tuner.

I should be 'fixed' this weekend

Sorry flatty.

Back on topic.

STLSTI · 02-28-2007, 01:29 PM

Maybe it relates to BOOST?. How much boost are you guys holding at 5k my latest log shows 17.89(fourth gear). and timing at this point was 19 with full DA

crystal_Imprezav · 02-28-2007, 04:07 PM

I will mention this tip again b/c it really does work wonders. Starting at about 1 load from 2000rpms or so, make your total timing = 16* up until about your highest load and 3000rpms. Then go on to your normal timing scheme. For one reason or another the ecu does not like timing down here and will throw off different DA points depending on when you punch the gas. You may loose a little spool but it will make up for it with a solid timing trend. Give it a shot and see if it works for you at all. When I modded my map to this, I went from seeing detonation at 20-22* at around 5000rpms to being able to hold 25+* strong now, and have not seen my DA drop since. Knocklite shows no activity as well.

flatthump · 02-28-2007, 04:08 PM

I have a couple logs on the last page. In the first one I dont think I have anything tuned. It's just a data log of OTS 91oct with DA rescaled to 10.

On the second one I turned up the boost a little bit but the same exact reaction happened; it pulled the same amount of timing.

STLSTI- I havent found the boundries of my ignition curve yet. But the few tests I've done have showed that I can take more timing.

The same amount of timing is pulled from DA no matter what I enter into the Primary ignition table. You see what Im saying? With the DA(A_B_C) set at 10, I have run a TOTAL advance of 22 at 4800rpm. Right at 5000rpm, 1.5 degrees is pulled from the DA.

Same thing happens when I run 18 degrees TOTAL at 4800rpm....

flatthump · 02-28-2007, 04:15 PM

^Typed that post before yours...

Quote:

Originally Posted by crystal_Imprezav

I will mention this tip again b/c it really does work wonders. Starting at about 1 load from 2000rpms or so, make your total timing = 16* up until about your highest load and 3000rpms. Then go on to your normal timing scheme. For one reason or another the ecu does not like timing down here and will throw off different DA points depending on when you punch the gas. You may loose a little spool but it will make up for it with a solid timing trend. Give it a shot and see if it works for you at all. When I modded my map to this, I went from seeing detonation at 20-22* at around 5000rpms to being able to hold 25+* strong now, and have not seen my DA drop since. Knocklite shows no activity as well.

I will try this.

But it happens when I punch the gas anywhere. It happens when I punch the gas at 3200 rpm....past where your saying to run 16*TOTAL right?

crystal_Imprezav · 02-28-2007, 04:23 PM

Lower all the timing at about 1-1.9 load. These are the load points where you are spool. But just hearing what you said in your previous post, 22* is slightly too much timing at 4800rpms and 91 oct. I would attempt to shift that up and maybe run that much timing around 5200rpms.

flatthump · 02-28-2007, 06:57 PM

I was just trying to establish what the problem was using that particular TOTAL ignition curve.

Im running 19 a 4800 currently.

02-28-2007, 11:42 AM	#16
STLSTI Professional STI Driver Car: 07 335 Fav Mod: NOISE Location: Parkland FL Posts: 424 Join Date: Aug 2004 Trader Rating: (4)	What's your target timing at 4k,5k,6k? and what's the best the car is giving you for those RPMs Also is you DAM set to 1.0 This ad is not endorsed by this member. Please register or login to hide this ad.

02-28-2007, 01:04 PM	#21
flatthump Enginerd Car: The Spaze Mobile Fav Mod: Tuning Location: South O.C., Ca Posts: 12,754 Join Date: Jan 2006 Trader Rating: (5)	Hmmm this is weird...I would of expected a problem around peak torque....not at 5000 rpm... You wouldnt know by driving it that it is pulling timing...It feels really strong.. Oh I noticed you have motor mounts too....Hmm Last edited by flatthump : 02-28-2007 at 01:08 PM.

02-28-2007, 06:57 PM	#30
flatthump Enginerd Car: The Spaze Mobile Fav Mod: Tuning Location: South O.C., Ca Posts: 12,754 Join Date: Jan 2006 Trader Rating: (5)	I was just trying to establish what the problem was using that particular TOTAL ignition curve. Im running 19 a 4800 currently. This ad is not endorsed by this member. Please register or login to hide this ad.

02-28-2007, 12:11 PM	#18
flatthump Enginerd Car: The Spaze Mobile Fav Mod: Tuning Location: South O.C., Ca Posts: 12,754 Join Date: Jan 2006 Trader Rating: (5)	The first log is with Crysal and Wolf's rescaled DA and PI map. The second one is the same map that I modified to run 2 degrees less total ignition everywhere. Same result though. keep in mind these are the only data logs i could find on this comp. I will get more conclusive ones later Thanks, Steve TUNER_070205222131.zip TUNER_070208191419.zip

02-28-2007, 12:15 PM	#19
flatthump Enginerd Car: The Spaze Mobile Fav Mod: Tuning Location: South O.C., Ca Posts: 12,754 Join Date: Jan 2006 Trader Rating: (5)	Oh....Da is all at 10...A B and C tables...

02-28-2007, 01:06 PM	#22
La Mer NIИja Car: 2006 STI (SGM) Location: US - Southern California Posts: 38,165 Join Date: Jan 2006 Trader Rating: (5)	ot: strong after 5K?! Are you sure you are driving an STI?

02-28-2007, 01:29 PM	#25
STLSTI Professional STI Driver Car: 07 335 Fav Mod: NOISE Location: Parkland FL Posts: 424 Join Date: Aug 2004 Trader Rating: (4)	Maybe it relates to BOOST?. How much boost are you guys holding at 5k my latest log shows 17.89(fourth gear). and timing at this point was 19 with full DA

02-28-2007, 04:07 PM	#26
crystal_Imprezav Spec C Club Car: Slow 05 STi Fav Mod: Loping Idle Location: Chewy's Garage Posts: 1,859 Join Date: Mar 2005 Trader Rating: (11)	I will mention this tip again b/c it really does work wonders. Starting at about 1 load from 2000rpms or so, make your total timing = 16* up until about your highest load and 3000rpms. Then go on to your normal timing scheme. For one reason or another the ecu does not like timing down here and will throw off different DA points depending on when you punch the gas. You may loose a little spool but it will make up for it with a solid timing trend. Give it a shot and see if it works for you at all. When I modded my map to this, I went from seeing detonation at 20-22* at around 5000rpms to being able to hold 25+* strong now, and have not seen my DA drop since. Knocklite shows no activity as well.

02-28-2007, 04:08 PM	#27
flatthump Enginerd Car: The Spaze Mobile Fav Mod: Tuning Location: South O.C., Ca Posts: 12,754 Join Date: Jan 2006 Trader Rating: (5)	I have a couple logs on the last page. In the first one I dont think I have anything tuned. It's just a data log of OTS 91oct with DA rescaled to 10. On the second one I turned up the boost a little bit but the same exact reaction happened; it pulled the same amount of timing. STLSTI- I havent found the boundries of my ignition curve yet. But the few tests I've done have showed that I can take more timing. The same amount of timing is pulled from DA no matter what I enter into the Primary ignition table. You see what Im saying? With the DA(A_B_C) set at 10, I have run a TOTAL advance of 22 at 4800rpm. Right at 5000rpm, 1.5 degrees is pulled from the DA. Same thing happens when I run 18 degrees TOTAL at 4800rpm....

02-28-2007, 04:23 PM	#29
crystal_Imprezav Spec C Club Car: Slow 05 STi Fav Mod: Loping Idle Location: Chewy's Garage Posts: 1,859 Join Date: Mar 2005 Trader Rating: (11)	Lower all the timing at about 1-1.9 load. These are the load points where you are spool. But just hearing what you said in your previous post, 22* is slightly too much timing at 4800rpms and 91 oct. I would attempt to shift that up and maybe run that much timing around 5200rpms.