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and I have written PID control loops for complex mechanical systems in the past, although not engines.
I can understand that extensive modification of air and exhaust stream components could cause the mass air flow to extend into a range not accurately measured by the air mass meter, (or included in the T7's algorithms), but I am having trouble with your claim that ANY modification will cause this problem.
Please explain how the following factors don't cause the afore mentioned problem, but any hardware change will:
1) Installation of Saab's own Saab/Remus performance exhaust.
2) Variations in air flow between a clean and dirty engine air filter?
3) Variations caused by the original catalytic converters becoming partially obstructed with vehicle age/mileage?
Thank you. Your postings are very informative and thought provoking.
posted by 68.42.11...
_______________________________________
Saabs owned:
2008 9-5 Aero Sedan, sold at 227K miles
2006 9-3SC 2.0T - Wife's daily driver
2000 Viggen Convertible - Sold May, 2022
1964 Quantum IV Formula Car - Retirement project
2000 9-5lpt Sedan, sold at 318K miles
Posts in this Thread:
- About the custom HW parts, Vigge, Sat, 11 Dec 2004 03:41:05
- 95power, Drew in Houston, Fri, 17 Dec 2004 17:45:04
- Re: 95power, Drew in Houston, Fri, 17 Dec 2004 18:02:38
- Re: About the custom HW parts, Drew in Houston, Fri, 17 Dec 2004 01:22:31
- Olli, I'm not as familiar w/t7's as I am...., zeke, Tue, 14 Dec 2004 06:00:58
- Drew, do you have an OBD logger?, Vigge, Mon, 13 Dec 2004 21:22:16
- Why do ME7's see HP gains from HW only?, perkj, Mon, 13 Dec 2004 13:58:04
- What?, Drew in Houston, Mon, 13 Dec 2004 00:53:56
- Re: What?, Vigge, Mon, 13 Dec 2004 03:24:16
- Re: What?, Drew in Houston, Mon, 13 Dec 2004 07:27:45
- Re: What?, Vigge, Mon, 13 Dec 2004 10:26:06
- About the dyno plot, Vigge, Mon, 13 Dec 2004 13:11:42
- You still have not addressed your PID comment., Drew in Houston, Mon, 13 Dec 2004 12:01:08
- Re: What?, Drew in Houston, Mon, 13 Dec 2004 11:37:20
- Drew, your 236 whp plot?, Vigge, Mon, 13 Dec 2004 22:04:15
- Re: Drew, your 236 whp plot?, Drew in Houston, Mon, 13 Dec 2004 23:21:17
- Found this but ´what about your current, Vigge, Tue, 14 Dec 2004 02:43:01
- Re: Found this but ´what about your current, Drew in Houston, Tue, 14 Dec 2004 05:24:42
- Dear Drew, Vigge, Tue, 14 Dec 2004 10:18:00
- Vigge, you offer quite a bit of insight..., CJH, Thu, 16 Dec 2004 05:17:14
- Re: Dear Drew, Drew in Houston, Tue, 14 Dec 2004 16:06:24
- Your punch line, Vigge, Wed, 15 Dec 2004 19:19:01
- Re: Dear Drew, Vigge, Tue, 14 Dec 2004 21:53:15
- Oh Vigge, Drew in Houston, Wed, 15 Dec 2004 07:59:32
- Round of applauses, Vigge, Wed, 15 Dec 2004 10:23:49
- Thank you, Drew in Houston, Wed, 15 Dec 2004 20:04:25
- Hey Drew, being an english major must.., zeke, Wed, 15 Dec 2004 09:28:27
- Re: Dear Drew, perkj, Tue, 14 Dec 2004 11:40:13
- Re: Found this but ´what about your current, 95power, Tue, 14 Dec 2004 07:30:51
- One more for the MAF, Vigge, Mon, 13 Dec 2004 12:45:43
- can you post all dyno results w/what HW was on during, perkj, Mon, 13 Dec 2004 10:45:06
- Re: What?, 95power, Mon, 13 Dec 2004 10:23:10
- Re: What?, Drew in Houston, Mon, 13 Dec 2004 10:57:16
- I think I understand your basic premise, please...., MI-Roger
, Mon, 13 Dec 2004 04:24:44
- You have managed to confuse me,......, MI-Roger
, Sun, 12 Dec 2004 16:34:12 <-- Viewing This Message - Correction....T7 does use both air mass AND pressure, perkj, Sun, 12 Dec 2004 16:03:27
- Re: About the custom HW parts, BrianS, Sat, 11 Dec 2004 15:12:02
- Re: About the custom HW parts, 95power, Sat, 11 Dec 2004 10:00:59
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