[jays05]

I've been running on basically the same tune for months now and finally started tweaking it again. Just looking for some pointers/tips for things that I could change. I am trying to get the car ready for the dragstrip this weekend.

As it is, I need to rescale my maps again for the higher engine load. My maps max out at 4.0 load and I've seen 3.9x in datalogs. I still get a rich spike during boost onset. I understand that this is controlled by the Fuel Injector Boost Trim Error map (FIBTE), but I can't see that map with StreetTuner or Engenuity, even when using the latest ecu definition maps. How are people changing this?

Anyways, on to the datalogs. How do my timing values look? I've been slowly adding timing around 5k with great results. 2nd gear spins all 4 now usually. Max boost here is around 24psi.. my avc-r targets 1.70. I plan on slowly bringing boost up to 26ish. For fuel I have 3 gallons of 110 to a full tank of 93, and I am spraying a 50/50 meth/water mix through an M15 nozzle with my SMC kit. It starts spraying around 12psi and maxes out at 26+ (I turned the max spray psi knob up all the way). My long term knock learning map is all 0's.

Oh and check out the uber spoolup in the first log... full boost around 4400! and I am still on the cobb stg2 AVCS map.

Time	IAT	MAF	Boost	ThrottleMPH	Load	IDC	RPM	Dyn.Adv	Timing	AFR
37:45.8	70	1.64	-10.44	9	43	0.2	4.53	3033	0	35.5	0
37:46.1	70	2.64	-0.15	90	43	0.93	12.58	2949	2.5	39	12.76
37:46.5	70	2.78	1.02	100	42	1.26	15.12	3082	4.5	33.5	15.52
37:46.8	70	2.92	2.18	100	42	1.37	16.18	3160	5	31	14.92
37:47.2	70	2.96	3.34	100	42	1.48	16.74	3270	5	29	14.51
37:47.5	70	3.1	4.64	100	43	1.58	17.79	3336	5	27	14.11
37:47.8	70	3.16	5.95	100	45	1.71	20.28	3521	5	24.5	13.42
37:48.2	70	3.34	7.69	100	47	1.93	24.18	3656	5	20.5	12.95
37:48.5	70	3.54	10.15	100	47	2.18	28.44	3809	5	17.5	12.36
37:48.9	70	3.74	13.49	100	50	2.53	34.32	3924	5	15	12.08
37:49.2	72	4.08	18.71	100	52	3.21	48.17	4260	5	14.5	11.73
37:49.5	72	4.22	22.48	100	55	3.65	53	4436	5	14.5	11.13
37:49.9	72	4.3	22.48	100	55	3.6	56.16	4786	5	16.5	11.91
37:50.2	73	4.38	22.48	100	60	3.57	57.67	5006	5	17	11.82
37:50.6	73	4.42	22.48	100	65	3.53	61.27	5319	5	18	11.64
37:50.9	73	4.48	22.48	100	65	3.58	63	5469	5	18	11.5
37:51.2	75	4.52	22.48	100	70	3.52	64.43	5808	5	19	11.33
37:51.6	75	4.52	22.48	100	75	3.4	66.04	5953	5	19.5	11.57
37:51.9	75	4.54	22.48	100	80	3.28	66.63	6247	5	21.5	11.47
37:52.3	75	4.56	22.48	100	80	3.21	69.87	6550	5	23	11.23
37:52.6	75	4.56	22.48	100	85	3.1	68.66	6705	5	24	11.39

Time	IAT	MAF	Boost	ThrottleMPH	Load	IDC	RPM	Dyn.Adv	Timing	AFR
37:00.2	79	3.14	1.74	100	16	1.36	20.12	4101	5.5	35	11.97
37:00.5	79	3.64	5.08	100	18	1.84	33.43	4897	5	28	11.76
37:00.8	79	4.34	13.49	100	21	2.79	60.57	5915	5	20	10.79
37:01.2	79	4.38	11.02	30	21	3.24	6.01	7042	5	29	10.86
37:01.5	81	1.98	-9.57	10	27	0.59	5.17	6055	0	24	19.54
37:01.9	81	1.96	-10.3	10	27	0.51	4.64	5440	0	24	15.33
37:02.2	82	3.5	5.37	100	32	1.77	29.28	4427	5	26.5	13.72
37:02.5	86	4.1	12.33	100	35	2.52	48.24	5139	5	21	11.08
37:02.9	88	4.58	22.48	100	38	3.63	74.31	6006	5	18.5	11.04
37:03.2	88	4.62	22.48	100	38	3.33	70.77	6770	5	23.5	11.73
37:03.6	90	2.56	1.89	15	42	1.56	6.17	7227	2.5	24.5	11.89
37:03.9	91	3.76	6.09	98	49	1.05	32.52	6627	0	41	19.02
37:04.3	93	4.36	17.84	100	54	3.15	63.81	5539	5	19	10.54
37:04.6	95	4.5	21.76	100	54	3.26	66.61	6122	5	20	11.13
37:04.9	95	4.54	22.48	100	58	3.23	67.39	6447	5	23	11.36
37:05.3	95	4.56	22.48	100	62	3.11	68.56	6838	5	24.5	11.45
37:05.6	95	3.86	-3.77	11	68	0.72	6.08	7126	0	24	11.52
37:06.0	95	3.78	5.37	100	68	1.2	33.81	6604	0	39	17.04
37:06.3	95	4.38	17.69	100	72	3.1	63.16	5586	5	19	10.44
37:06.6	97	4.36	20.6	100	75	3.29	63.66	5630	5	19	10.67
37:07.0	97	4.36	20.6	100	75	3.29	63.66	5630	5	19	11.32
37:07.3	97	4.48	22.34	100	77	3.25	65.73	6162	5	20.5	11.32
37:07.7	95	4.52	22.48	100	81	3.2	66.74	6385	5	22	11.27
37:08.0	93	4.54	22.48	100	85	3.15	68.48	6551	5	23.5	11.25
37:08.3	93	4.56	22.48	100	85	3.09	69.88	6824	5	24.5	11.38

Time	IAT	MAF	Boost	ThrottleMPH	Load	IDC	RPM	Dyn.Adv	Timing	AFR
39:21.5	117	3.28	0.87	100	22	1.28	23.57	4803	2	38	13.32
39:21.8	115	3.48	2.9	100	22	1.58	29.98	5019	3.5	33	11.58
39:22.2	113	4.2	10.59	100	24	2.44	53.55	5977	5	21.5	10.5
39:22.5	111	4.68	22.48	100	24	3.27	6.12	7176	5	24.5	10.75
39:22.8	109	2.2	-9.57	10	27	0.7	4.68	5483	0	24	24.17
39:23.2	108	3.76	7.69	100	32	2.08	37.77	4918	5	24.5	13.88
39:23.5	108	4.44	18.13	100	37	3.22	64.73	5517	5	19	11.02
39:23.9	108	4.58	22.48	100	37	3.4	68.93	6462	5	22.5	11.48
39:24.2	108	4.6	22.48	100	41	3.12	72.85	7114	5	25	11.86
39:24.5	106	3.3	-8.99	10	47	0.55	4.89	5734	0	24	0
39:24.9	106	3.86	8.41	100	52	2.07	40.52	5134	5	25	13.82
39:25.2	106	4.44	20.16	100	52	3.36	67.86	5680	5	19	10.48
39:25.6	106	4.48	22.19	100	56	3.28	66.23	6087	5	20.5	11.32
39:25.9	104	4.52	22.48	100	60	3.2	66.96	6539	5	23.5	11.73
39:26.2	104	4.56	22.48	100	64	3.04	70.68	7049	5	25	11.6

[WolfPlayer]

Jay,

I'll look at the logs when I get a chance. However, regarding the FIBTE map ...

One option is to just e-mail Christian from Cobb and see if he'll change the value for you in your StreetTUNER map.

Another option is to wait for Cobb's more advanced ST ... but, there is no idea how long of a wait that would be.

Another option is that I thought I remembered some guy on enginuity requesting that map and the dude responsible for the definitions posting a test definition for him to test. I'm pretty sure it was in the definition discussion forum and it said FIBTE in the title (IIRC). If that doesn't help, then you could probably contact the same dude who created that test definition and see if maybe he will create one for you? I don't know. But, it might be worth a try.

t

[RainMaker]

Originally Posted by WolfPlayer

Another option is to wait for Cobb's more advanced ST ... but, there is no idea how long of a wait that would be.

I've been wondering alot lately how much longer that is going to be....

[LOLSTi]

There's going to be a cult following for ST v1.

[Merchgod]

Originally Posted by WolfPlayer

Another option is that I thought I remembered some guy on enginuity requesting that map and the dude responsible for the definitions posting a test definition for him to test. I'm pretty sure it was in the definition discussion forum and it said FIBTE in the title (IIRC). If that doesn't help, then you could probably contact the same dude who created that test definition and see if maybe he will create one for you? I don't know. But, it might be worth a try.

I'll be adding this table, among others, to the next definition release for Enginuity. The definitions are often updated between releases of Enginuity, so check the link on the Enginuity page labeled "latest ecu definitions". .77b is the current version. The new tables will be added in .78b. Or, the ST advanced will probably cover this, so if you are not comfortable with computers this might be a better option for you.

[jays05]

Originally Posted by WolfPlayer

Jay,

I'll look at the logs when I get a chance. However, regarding the FIBTE map ...

One option is to just e-mail Christian from Cobb and see if he'll change the value for you in your StreetTUNER map.

Another option is to wait for Cobb's more advanced ST ... but, there is no idea how long of a wait that would be.

Another option is that I thought I remembered some guy on enginuity requesting that map and the dude responsible for the definitions posting a test definition for him to test. I'm pretty sure it was in the definition discussion forum and it said FIBTE in the title (IIRC). If that doesn't help, then you could probably contact the same dude who created that test definition and see if maybe he will create one for you? I don't know. But, it might be worth a try.

t

Thanks wolf you got me pointed in the right direction here... oddly enough, on the engenuity forums they're saying that the FIBTE map works with the new definitions, but they don't work for me. I tried the existing rom on my car, as well as a newer stock ROM that I downloaded from openecu.org. I'm running the right ECU revision and all that (A2ZJB10J) but that table just shows up as all 0's. I'll try to resolve it on their forums. My AP cable is borked and I only have a tactrix cable, so reflashing base is out of the question for now. I'm not going to worry about the rich spike on boost onset for now. I don't think it's hurting me too much. Oh and I believe that Christian already modified this table for my PE850's way back a long time ago.

I am really wondering how much timing is too much... I am limiting myself to 25 degrees up top but it seems to want more down low.

[WolfPlayer]

Jay,

That is correct! The table IS suppose to show up as all zeroes You're good to go. Mine currently shows "-29.xx" in every cell because I am subtracting 30%. So, no worries, it is suppose to show 0's on a stock image.

t

[jays05]

Nice! I'll give this a try tonight.

Now comment on my datalogs please

[WolfPlayer]

Originally Posted by jays05

Nice! I'll give this a try tonight.

Now comment on my datalogs please

60-80 in 1.7s. Sweet. There's my comment for ya

Honestly, after reading that you were running 93 + 110 + meth/water injection, I really don't have the experience to comment on those logs. I think they look nice. But, honestly, that doesn't mean anything

I like your use of flat dynamic advance. I like the high load values. I like the IDCs, Boost looks neato maxed out in the logs, 4.56 MAF volts on a ??? in maf? I assume 3"+ and that is moving some air. I can't really comment on overall timing and AFR due to 93 + 110 + meth/water injection.

t

[jays05]

It's a Perrin BigMAF... I am still using the 4" inlet hose and BigMAF that came with the Perrin GT35R kit. From what I have read, the MAF maxes out around 530whp on a dynapak... so I am happy with my numbers so far. I am going to push timing up a max of 1 degree at 4-5k rpms at high load and leave it at that.

I still have the other issue that I posted about earlier, with hitting the dbw throttle cut between shifts. I changed the dbw table to give 100% at 7500 and 25% at 8000, with the rev limit at 7000/6900, and still hit it on fast shifts. I'm just driving around that problem for now, but it's going to hurt me at the track.

[R4ND0M_AX3]

Originally Posted by WolfPlayer

Jay,

That is correct! The table IS suppose to show up as all zeroes You're good to go. Mine currently shows "-29.xx" in every cell because I am subtracting 30%. So, no worries, it is suppose to show 0's on a stock image.

t

This thread came up when I did a search for FIBTE.

I'm tired of waiting for ST ADV. I just emailed Christian to see about getting a tweaked basemap. The reason I'm posting is because christian's tuning worksheet v1.13 shows the stock FIBTE tables as full of 128 not 0.

Which is it? Are they both the same just displayed different?

PS my tactrix cable is on the way.

[WolfPlayer]

Originally Posted by R4ND0M_AX3

v1.13 shows the stock FIBTE tables as full of 128 not 0.

Which is it? Are they both the same just displayed different?

AFAIK, yes, they are the same. 128 means that no adjustments have been made. Depending on the program, it will be displayed as 128 or 0. Enginuity will show it as 0. ProTUNER shows it as 128.

t

[daemon]

For those non-computer geeks, 128 is the middle binary value of an 8 bit number (or byte). That is, the MSB (most significant bit) is one and all other bits are zero. For a signed byte, the MSB is the sign bit. So numbers 0 to 127 are as you'd expect. 128 is actually negative zero. 129 becomes -1, 130 becomes -2, etc.

Therefore I assume Cobb is displaying the signed byte as an unsigned byte. Same string of binary numbers, just a different way of displaying the information.