UTEC dataloggin and tuning

[chohakai]

After unsuccessfully trying to get/buy a base UTEC map for my LGT from a few vendors and a few folks here on this forum, I said f*it, I'm gonna tune it myself... I've built a couple of 400+rwhp rx7's before with Standalone ECU's, so I have some experience, I just needed the time.

 

I used a LM1 wideband AFR meter together with this kick ass datalogging software called MPS_UTECLogger written by Jason Mussetter to capture data, and intially I did a little datalogging with the stock map, and then with the STI stage 1 map (came from turboxs), neither one of those were close....

 

The only mods on my car are a non-flex aftermarket up pipe, along with a Cobb DP, and the biggest problem is that the tip-in, or acceleration enrichment is way off in both of the forementioned maps. See logs below...

[chohakai]

Here's the log of the stock map (map selector on 0), I only ran up to about 6000 rpm, check out the messed up AFR's

 

RPM, MAP, MAF V, TPS, Load Site, Knock Count, AFR, Inj duty, Mod Ign, Mod Fuel, Boost, and Mod MAF V.

 

 

1484 -3.8 2 14 0 0 14.1 5.9 ECU. 0 ECU. 2

1571 -4.5 2 14 0 0 14.6 6 ECU. 0 ECU. 2

1541 -4.9 2.1 18 0 0 15.1 3.9 ECU. 0 ECU. 2.2

1659 -4.9 2.4 28 0 0 15.2 8.5 ECU. 0 ECU. 2.6

1751 -3.8 2.5 38 10 0 14.9 10.3 ECU. 0 ECU. 2.5

1790 -2.2 2.6 43 10 0 15.5 12.1 ECU. 0 ECU. 2.6

1927 -0.6 2.6 45 10 0 14.9 13 ECU. 0 ECU. 2.6

1996 0.8 2.7 50 10 0 14.9 12.9 ECU. 0 ECU. 2.7

2128 1.7 2.7 54 20 0 14.6 8 ECU. 0 ECU. 2.8

2238 2.1 2.9 59 20 0 13.5 14.6 ECU. 0 ECU. 2.8

2410 2.9 3 76 20 0 14.7 17.6 ECU. 0 ECU. 3

2562 3.5 3.1 86 30 0 14.8 21 ECU. 0 ECU. 3.1

2690 4.5 3.2 87 30 0 15 23.8 ECU. 0 ECU. 3.2

2796 5.7 3.3 87 40 0 14.5 26.7 ECU. 0 ECU. 3.3

2981 7.2 3.4 87 50 0 14.4 29.1 ECU. 0 ECU. 3.6

3129 8.6 3.5 87 50 0 14.3 32.8 ECU. 0 ECU. 3.7

3326 10.2 3.5 86 60 0 14.3 34.5 ECU. 0 ECU. 3.6

3519 11 3.7 87 60 0 14.2 37.1 ECU. 0 ECU. 3.7

3683 11.7 3.8 87 60 0 14.4 39.2 ECU. 0 ECU. 3.8

3949 12.1 3.9 85 60 0 14.4 40.3 ECU. 0 ECU. 3.9

4135 11.9 4 87 60 0 14.4 42.9 ECU. 0 ECU. 4

4208 12.1 4 87 60 0 14.4 46 ECU. 0 ECU. 4

4391 12.3 4.1 87 60 0 11.9 67.4 ECU. 0 ECU. 4.1

4547 11.9 4.1 87 60 0 11 68.7 ECU. 0 ECU. 4.1

4768 12.1 4.2 87 60 0 10.9 71.3 ECU. 0 ECU. 4.2

4975 11.9 4.2 86 60 0 10.8 73.1 ECU. 0 ECU. 4.2

5120 11.7 4.3 86 60 0 10.9 74.4 ECU. 0 ECU. 4.3

5385 11.9 4.3 86 60 0 10.9 77.2 ECU. 0 ECU. 4.3

5574 11.5 4.3 86 60 0 10.7 78.6 ECU. 0 ECU. 4.3

5817 11.3 4.4 86 60 0 10.7 77.1 ECU. 0 ECU. 4.3

5952 11 4.4 76 60 0 10.7 79.9 ECU. 0 ECU. 4.4

5931 10.2 4 0 0 0 10.9 55.9 ECU. 0 ECU. 2.4

[chohakai]

This is the STI stg2 map downloaded from Turboxs, Notice how the A/F ratio goes from super lean to super rich (this map is way too rich from Legacys, yet the ECU is still very lean before the transition to UTEC control

 

2478 -6.5 2.5 21 0 0 14.3 11.8 Ecu. 0.4 Ecu. 2.5

 

2536 -4.9 2.5 21 0 0 13.9 12.1 Ecu. 0.4 Ecu. 2.5

 

2574 -3.6 2.6 21 0 0 14.6 13.7 Ecu. 0.4 Ecu. 2.6

 

2677 -3.2 2.6 21 0 0 14.8 12 Ecu. 0.4 Ecu. 2.6

 

2745 -3 2.7 21 0 0 14.9 14.8 Ecu. 0.4 Ecu. 2.7

 

2812 -2.6 2.9 26 10 0 14.7 19.9 20.2 2.3 Ecu. 3

 

2913 -1.6 3 28 10 0 13.4 25.8 19.6 2.1 Ecu. 3.1

 

3044 -0.2 3.1 29 10 0 11.3 29.1 19 1.7 Ecu. 3.2

 

3165 1.7 3.2 30 20 0 11.3 32.3 15 1.4 375 3.3

 

3320 3.9 3.6 41 30 0 11.1 43.2 15.4 1.9 375 3.7

 

3494 6.4 3.7 47 50 0 10.8 51.3 15 2.6 375 3.9

 

3691 9 3.9 59 60 0 10.4 61.6 15 3.7 375 4

 

3898 11.3 3.9 80 70 0 9.8 67.6 14.8 3.5 375 4.1

 

4074 13.3 4 86 70 0 9.7 67.5 16 3.3 375 4.1

 

4240 14.1 4 86 70 0 9.6 75.2 15.6 3.2 375 4.2

 

4403 14.5 4.1 85 70 0 9.7 78.1 15.9 3.1 375 4.3

 

4604 14.1 4.2 85 70 0 9.5 84.5 17 3.1 375 4.3

 

4701 13.9 4.2 85 70 0 9.4 86 18.1 2.1 375 4.3

 

4952 13.5 4.2 85 70 0 9.4 84.4 19 0.1 375 4.3

 

5184 13.5 4.3 85 70 0 9.8 86.3 19 0.1 375 4.3

 

5307 13.5 4.3 85 70 0 9.9 88.3 19.3 0.5 375 4.3

 

5446 13.7 4.3 85 70 0 9.9 90.1 19.8 0.7 375 4.3

 

5688 13.7 4.3 83 70 0 9.7 92.3 20.3 0.7 375 4.4

 

5899 12.9 4.3 71 60 0 9.7 94.6 21.8 0.8 375 4.4

 

6006 12.5 4.4 21 0 0 9.6 91.7 Ecu. 0.6 Ecu. 4

[chohakai]

Since I'm running on CA 91 octane piss water, low 11's AFR causes slight knocking (the bold values). But the car feels like it's gained at least 30-50 hp since I'm running 3-5 more lbs of boost with much better combustion.

 

Another thing is that the turbo is too small, the max psi here is 15 psi then tapers to 12 psi, however this was 2nd gear, in 4th the turbo boosts to 17psi and then tapers down to 15.

 

Note that this is with the boost solenoid on almost full duty cycle, so the turbo is basically "floating" (like running with no wastegate or wg shutoff), basically don't expect your stock turbo to last very long at this rate (maybe 30-50K miles maybe a little more).

 

2298 -4.9 2.5 22 0 0 15.4 38.4 11.2

 

2322 -3.6 2.7 24 0 0 15.2 35.3 18.3

 

2415 -2.2 2.7 26 10 0 14.7 30.2 16.6

 

2506 -1 2.9 29 10 0 13.8 28.1 19.2

 

2647 0.2 3 33 10 0 12.9 25.2 22.3

 

2803 1.7 3.2 41 20 0 13 19.7 27.4

 

2986 3.3 3.4 59 30 0 12.2 17.2 33.6

 

3153 5.3 3.5 73 40 0 11.8 15.6 40.4

 

3350 7.8 3.6 78 50 0 11.4 13.2 47.6

 

3531 10.6 3.8 80 70 1 11.4 10.8 51

 

3711 12.7 4 85 70 1 11.2 11.5 56.1

 

3871 14.5 4.1 85 70 0 11 13.4 62

 

4145 15.1 4.1 85 70 0 10.9 14.1 61.5

 

4323 14.9 4.2 85 70 0 11.1 12.9 67.3

 

4486 14.9 4.2 85 70 0 11.1 13 72.3

 

4775 14.5 4.3 85 70 0 10.6 15 74.7

 

4982 14.3 4.3 85 70 0 10.6 17.4 74.5

 

5144 14.3 4.4 85 70 0 11.1 18.2 76.8

 

5455 14.3 4.4 85 70 0 11 19 81.5 .

 

5464 13.9 4.4 85 70 1 11 19.5 80.2

 

5688 14.1 4.4 85 70 0 11 21.8 83.7

 

5995 13.7 4.4 85 70 0 10.8 23.3 81.2

 

6218 13.7 4.4 85 70 0 11 24.8 81.9

 

6361 13.7 4.5 85 60 0 10.9 27 82.6

 

6510 12.3 4.5 81 50 0 11 29.3 81.7

 

6666 11.7 4.5 52 50 0 11.1 31.3 83.1

[CFar]

Looks pretty normal for AFR's on the stock map. Look at the post above and most people show similar numbers.

As for the whole tuning thing, knock, and generally messing with anything. I consider it voodoo and stay away from it.

[ShaggyGT]

First you need to read the manual. From looking at you logs you need to calibrate your TPS, this is explained in the user manual and is very simple to do. When you go WOT you should be in the 90 or 100 load site columns. You should also see 98-100% TPS and your not even close. You also will need to adjust the MAP range in the Parameters menu since it is default set at 18psi and you are definitely not going to be running close to that with the stock turbo. You will want to set it to the peak boost that you see.

 

I will be more than happy to help you sort out a map. First fix the TPS calibration and then get some more logs and I will help you with the next step. The User manual will help you through alot of the basic stuff. And when you have the UTEC set to map switch position 0, you are then running on the ECU and the UTEC has no effect on it.

 

-Matt

[jarrod]

Hey pm me your email address and i'll send you the stage 1 lgt map i have.

[chohakai]

Thanks, Matt.

I know about the map selector, I was using 0 map to see how off the stock map is.

 

I was going to calibrate the TPS, but didn't have the manual with me when I was road tuning, so I didn't have a reference. Overall, I'm fairly happy thru the 1st stage of rough tuning, as the car is much faster now, and I've tuned out almost all the knocks. It looks like I'm getting there slowly.

 

First you need to read the manual. From looking at you logs you need to calibrate your TPS, this is explained in the user manual and is very simple to do. When you go WOT you should be in the 90 or 100 load site columns. You should also see 98-100% TPS and your not even close. You also will need to adjust the MAP range in the Parameters menu since it is default set at 18psi and you are definitely not going to be running close to that with the stock turbo. You will want to set it to the peak boost that you see.

 

I will be more than happy to help you sort out a map. First fix the TPS calibration and then get some more logs and I will help you with the next step. The User manual will help you through alot of the basic stuff. And when you have the UTEC set to map switch position 0, you are then running on the ECU and the UTEC has no effect on it.

 

-Matt

[ShaggyGT]

Like I said, if you need any help let me know. I would be more than happy to help out if you provide logs. I have been tuning UTEC's for about 3 years now.

 

-Matt

[team23jordan]

i need help

 

i went to local shop called Axiom Motorsports

 

my car dynoed at 256awhp and 328awtq but after they "TUNED" it

 

it dynoed at 249awhp and 319awtq...

 

my car idles rough sometimes

 

my engine dies when i put a map selector to "0"

 

really bad turbo lag and car jerks when turbo kicks in

[chohakai]

jordan23, what mods do you have on your car? If it's similar to mine, then you can try my maps, it's almost all there now. It drives like stock, except a small hesitation/barely noticeble at the switch over state.

 

Fred

[Jaxx]

hmm as i was about to click on this i wondered .. are there any base maps for the LGT ..with the price of used sti utecs this is a real option but sigh ..

 

i REALLLLY need EM

 

a quick search on nasioc revealed them selling for less than a AP .. grumble grumble

[ShaggyGT]

i need help

 

i went to local shop called Axiom Motorsports

 

my car dynoed at 256awhp and 328awtq but after they "TUNED" it

 

it dynoed at 249awhp and 319awtq...

 

my car idles rough sometimes

 

my engine dies when i put a map selector to "0"

 

really bad turbo lag and car jerks when turbo kicks in

 

Mod list would definitely help. Also have you changed the plugs? If not how many miles are on your car? Have you been running a base map prior to the tune?

 

Its not unusual for the car to make less if when you went in the A/F ratio was on the lean side or it was knocking.

 

-Matt

[MDTURBO]

i need help

 

i went to local shop called Axiom Motorsports

 

my car dynoed at 256awhp and 328awtq but after they "TUNED" it

 

it dynoed at 249awhp and 319awtq...

 

my car idles rough sometimes

 

my engine dies when i put a map selector to "0"

 

really bad turbo lag and car jerks when turbo kicks in

 

Give us a list of your mods. Check your current map and see if the load-site 0 column is modified as well. A number of other things can cause your symptoms, vacuum leak for one.

 

-Rob

[jarrod]

After unsuccessfully trying to get/buy a base UTEC map for my LGT from a few vendors and a few folks here on this forum, I said f*it, I'm gonna tune it myself... I've built a couple of 400+rwhp rx7's before with Standalone ECU's, so I have some experience, I just needed the time.

 

I used a LM1 wideband AFR meter together with this kick ass datalogging software called MPS_UTECLogger written by Jason Mussetter to capture data, and intially I did a little datalogging with the stock map, and then with the STI stage 1 map (came from turboxs), neither one of those were close....

 

The only mods on my car are a non-flex aftermarket up pipe, along with a Cobb DP, and the biggest problem is that the tip-in, or acceleration enrichment is way off in both of the forementioned maps. See logs below...

 

I sent you my maps let me if you don't get them. Also if you make any changes for the better please let me know

[team23jordan]

my mods are

 

header with integrated UP

HKS 3" DP (WRX)

custom 3" CB

Perrin Big MAF intake

Perrin Turbo Inlet

 

i have 17000 miles on my car and i haven't change the plugs yet

 

i'll check my base map tommorow