APS DR525 Results, Tuning, etc. - Page 4

daemon · 12-22-2006, 07:29 AM

Quote:

Originally Posted by crystal_Imprezav

I kept it to keep it more sleeper.

Sleeper? Black core = sleeper. Silver core = not sleeper.

crystal_Imprezav · 12-22-2006, 07:39 AM

Ha yea, I know but I don't want to spray it and powder coating is too expensive. I am going for a look like this:

daemon · 12-22-2006, 07:42 AM

That does look slick.

WolfPlayer · 12-22-2006, 10:14 AM

Quote:

Originally Posted by crystal_Imprezav

Tim, you wanna email me your map so I can take a look at it. My suspicion is that you are running too rich of a afr, at lower rpm's which is causing an even richer spool with the FMIC being that the track is longer. Since you were running close to a 10.3:1 before, it really doesn't surprise me that your dipping into the 9's now.

Crystal,

It's DEFINITELY not that. Why? It does the same thing no matter WHERE I spool. It does it between WOT shifts too. The weird thing is that I can start a WOT pull from 2000rpms. At full spool ~3000rpms it will dip to 9.x AFRs. I hold it at WOT and it goes back to 10.8-11.0 AFRs - even at 5200rpms. Now, lets do this over but start WOT around 5000rpms. It will dip into the 9's @ 5200rpms (even though it was 10.8-11.0 in the previous WOT run). This, IMHO, has nothing to do with the AFR map. It's totally about something else ... either tip-in or a mechanical problem that only happens on spoolup. Grrrrr.

t

crystal_Imprezav · 12-22-2006, 11:45 AM

Gotcha, I completely forgot about spooling up at higher rpms.

dareseven · 12-23-2006, 07:00 AM

Keep up the investigating Wolf. Watch it turn out to be something simple. That would be a blessing!

crystal_Imprezav · 12-24-2006, 01:54 PM

Ok so I finally got everything done and good to go minus the meth (couldn't get my old nozzle out so I need a new one). Loaded up the pump map for 19psi and 11.1:1 AFR all the way through and went for a spin (no logs, too tired). Intial thoughts were that it is noticeably laggier at part throttle. The feeling felt most like when you have too much AVCS dialed in, if any of you know what that feels like. I then went WOT (from 2000rpm, 4th gear) and peak boost hit at around a little over 3200 rpm. Thats about a 200-400 rpm difference from the stock TMIC. Now up top it felt great, much more peppy than with the TMIC.

Now for the fun part, the AFR's. With the TMIC and this tune I would consistently pull a 10.9-11.1:1 afr with this exact tune. In every gear up to third, it was point on, the richest it ever got was 10.9:1 at peak boost and then right back to 11.1:1 through redline. Now in 4th gear, I did a hard load from 2000 rpms and the AFR dipped down to 10.4~10.5:1 right at peak boost and straight back to 11.1:1 there after. This seemed odd to me since it went from a mid 12:1 spool to 10.x immediately and then right back to where it should be. It does make a noticeable difference since the peak torque that you are used to feeling, is significantly decreased with the dip. Ill play around with some basemap parameters tomorrow and get some logs and report back. One thing that has not been mentioned that I am going to try is playing with MAF. Since peak boost hits at a specific MAF voltage range, I think that by lowering that part of the calibration, I will be able to get the spike to disappear with no ill effects. It may effect the spool up afr a bit but I wont mind that since with a leaner mix, it will yield faster spool.

Overall I am not too disappointed with it all. I think that I can get the spike to disappear and I can most certainly work on the spool up time. However I will not spend much time tuning the pump map since as soon as my new nozzle arrives I am going to dial my meth tune in with a lot of boost and some fine tuning up top to take advantage of the cooler charge.

WolfPlayer · 12-24-2006, 05:08 PM

Be careful doing the MAF voltages. It'll definitely be a fudge and if you hit that at any point OTHER than the spoolup then you will be lean

t

evodon84 · 12-25-2006, 02:12 AM

Sorry to see the problems your having here wolf. hope you can get it figured out soon.

WolfPlayer · 12-25-2006, 05:03 AM

Quote:

Originally Posted by crystal_Imprezav

Now in 4th gear, I did a hard load from 2000 rpms and the AFR dipped down to 10.4~10.5:1 right at peak boost and straight back to 11.1:1 there after. It does make a noticeable difference since the peak torque that you are used to feeling, is significantly decreased with the dip.

VERY similar to what I am seeing. Only difference is that mine dips a little lower. This might be due to the fact that the DR525 has more volume than the EBay FMIC.

t

crystal_Imprezav · 12-25-2006, 05:19 AM

No leaks here either. I used hairspray to coat the inside of the couplers before I tightened down the clamps. I tightened them down so much that I snapped one of the t-bolt clamps

AnorexicSTI · 12-25-2006, 05:23 AM

Quote:

Originally Posted by crystal_Imprezav

Ha yea, I know but I don't want to spray it and powder coating is too expensive. I am going for a look like this:

Hi... which reverse scoop are you using. It looks nice. I was thinking of going CF hood or something to replace that awful STI hoodscoop when going FMIC.

crystal_Imprezav · 12-25-2006, 05:25 AM

Quote:

Originally Posted by WolfPlayer

Be careful doing the MAF voltages. It'll definitely be a fudge and if you hit that at any point OTHER than the spoolup then you will be lean

t

Right, but I will have meth as a safety measure, however looking at a bunch of logs, with my intake calibration whenever I hit full boost from spool it always hits at 4.3v. If you take a look at the AVCS logs I sent you awhile back you will see this. By lowering the volts right before full boost and at that 4.1~4.3 mark I should be able to lean out the mix and it should accurately reflect the amount of air going into the motor being that the pressure drop and delayed air volume will combine to produce less manifold air/pressure than with the TMIC, or at least I hope since nothing else seems to be working effectively.

crystal_Imprezav · 12-25-2006, 05:30 AM

That is a Seibon reverse scoop (http://www.gruppe-s.com/Subaru/subext.htm) I believe. That is not my car, I am using a regular wrx scoop and plan on getting a RS hood or just leaving the wrx scoop. Here are some finished pics:

WolfPlayer · 12-25-2006, 12:31 PM

I'm just glad that I am not the only one seeing this. How the heck can we go through 3 complete model years ... AND start a 4th model year and nobody has reported this? So far, I have seen it - you have seen it - and daemon has seen it. Oddly enough, it's the 3 people in this StreetTUNER forum who actually tune their own cars. rofl.

Merry Christmas. It's just too bad that we can't present a nice solution to this issue - all wrapped up with a bow on top, hehe. Santa? Santa?! SANTA!?!?

t

12-25-2006, 12:31 PM	#60
WolfPlayer Moderator & ECU Tech Car: 05 CGM STI Fav Mod: mo boostaz Location: Fredneck, MD Posts: 3,542 Join Date: Jun 2004 Trader Rating: (6)	I'm just glad that I am not the only one seeing this. How the heck can we go through 3 complete model years ... AND start a 4th model year and nobody has reported this? So far, I have seen it - you have seen it - and daemon has seen it. Oddly enough, it's the 3 people in this StreetTUNER forum who actually tune their own cars. rofl. Merry Christmas. It's just too bad that we can't present a nice solution to this issue - all wrapped up with a bow on top, hehe. Santa? Santa?! SANTA!?!? t This ad is not endorsed by this member. Please register or login to hide this ad.

12-22-2006, 07:39 AM	#47
crystal_Imprezav Spec C Club Car: Slow 05 STi Fav Mod: Loping Idle Location: Chewy's Garage Posts: 1,845 Join Date: Mar 2005 Trader Rating: (11)	Ha yea, I know but I don't want to spray it and powder coating is too expensive. I am going for a look like this:

12-22-2006, 07:42 AM	#48
daemon Professional STI Racer Car: 2004 STi Location: Florida Posts: 783 Join Date: Feb 2004 Trader Rating: (0)	That does look slick.

12-22-2006, 11:45 AM	#50
crystal_Imprezav Spec C Club Car: Slow 05 STi Fav Mod: Loping Idle Location: Chewy's Garage Posts: 1,845 Join Date: Mar 2005 Trader Rating: (11)	Gotcha, I completely forgot about spooling up at higher rpms.

12-23-2006, 07:00 AM	#51
dareseven Professional STI Driver Car: Sold 06 Aspen White/ Fav Mod: Meticulous Maintenance Location: AL Posts: 411 Join Date: Dec 2005 Trader Rating: (0)	Keep up the investigating Wolf. Watch it turn out to be something simple. That would be a blessing!

12-24-2006, 01:54 PM	#52
crystal_Imprezav Spec C Club Car: Slow 05 STi Fav Mod: Loping Idle Location: Chewy's Garage Posts: 1,845 Join Date: Mar 2005 Trader Rating: (11)	Ok so I finally got everything done and good to go minus the meth (couldn't get my old nozzle out so I need a new one). Loaded up the pump map for 19psi and 11.1:1 AFR all the way through and went for a spin (no logs, too tired). Intial thoughts were that it is noticeably laggier at part throttle. The feeling felt most like when you have too much AVCS dialed in, if any of you know what that feels like. I then went WOT (from 2000rpm, 4th gear) and peak boost hit at around a little over 3200 rpm. Thats about a 200-400 rpm difference from the stock TMIC. Now up top it felt great, much more peppy than with the TMIC. Now for the fun part, the AFR's. With the TMIC and this tune I would consistently pull a 10.9-11.1:1 afr with this exact tune. In every gear up to third, it was point on, the richest it ever got was 10.9:1 at peak boost and then right back to 11.1:1 through redline. Now in 4th gear, I did a hard load from 2000 rpms and the AFR dipped down to 10.4~10.5:1 right at peak boost and straight back to 11.1:1 there after. This seemed odd to me since it went from a mid 12:1 spool to 10.x immediately and then right back to where it should be. It does make a noticeable difference since the peak torque that you are used to feeling, is significantly decreased with the dip. Ill play around with some basemap parameters tomorrow and get some logs and report back. One thing that has not been mentioned that I am going to try is playing with MAF. Since peak boost hits at a specific MAF voltage range, I think that by lowering that part of the calibration, I will be able to get the spike to disappear with no ill effects. It may effect the spool up afr a bit but I wont mind that since with a leaner mix, it will yield faster spool. Overall I am not too disappointed with it all. I think that I can get the spike to disappear and I can most certainly work on the spool up time. However I will not spend much time tuning the pump map since as soon as my new nozzle arrives I am going to dial my meth tune in with a lot of boost and some fine tuning up top to take advantage of the cooler charge.

12-24-2006, 05:08 PM	#53
WolfPlayer Moderator & ECU Tech Car: 05 CGM STI Fav Mod: mo boostaz Location: Fredneck, MD Posts: 3,542 Join Date: Jun 2004 Trader Rating: (6)	Be careful doing the MAF voltages. It'll definitely be a fudge and if you hit that at any point OTHER than the spoolup then you will be lean t

12-25-2006, 02:12 AM	#54
evodon84 Professional STI Racer Car: 2006 Kawasaki Ninja Fav Mod: Power Sliding doors on my Minivan beotch Location: San Diego Posts: 692 Join Date: Jun 2005 Trader Rating: (0)	Sorry to see the problems your having here wolf. hope you can get it figured out soon.

12-25-2006, 05:19 AM	#56
crystal_Imprezav Spec C Club Car: Slow 05 STi Fav Mod: Loping Idle Location: Chewy's Garage Posts: 1,845 Join Date: Mar 2005 Trader Rating: (11)	No leaks here either. I used hairspray to coat the inside of the couplers before I tightened down the clamps. I tightened them down so much that I snapped one of the t-bolt clamps

12-25-2006, 05:30 AM	#59
crystal_Imprezav Spec C Club Car: Slow 05 STi Fav Mod: Loping Idle Location: Chewy's Garage Posts: 1,845 Join Date: Mar 2005 Trader Rating: (11)	That is a Seibon reverse scoop (http://www.gruppe-s.com/Subaru/subext.htm) I believe. That is not my car, I am using a regular wrx scoop and plan on getting a RS hood or just leaving the wrx scoop. Here are some finished pics: