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Old 02-01-2012, 10:42 PM   #58 (permalink)
dcb
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pimp mobile - '81 suzuki gs 250 t
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Quote:
Originally Posted by SentraSE-R View Post
... My 900 mile drive to SoCal cleaned the cat.
You keep asserting that, but it hasn't been substantiated.
Here, since you dropped $20, I'll put the data in a table to make it easier. It would be better with more tests and control tests, but this is it for now.
Code:
Test	RPM	%CO2	%O2	%HC	%CO	%NO	mph	hp	torque
1	1735	14.8	0.0	62	0.06	101
1	2800	14.6	0.3	16	0.02	89
2	1698	11.8	4.4	39	0.02	105
2	2752	11.4	4.9	14	0.01	74
3		11.7	4.5	2	0.0	75	6.1	5.3	117.4
3		12.1	3.8	6	0.0	544	7.8	6.7	116
3		12.1	4.2	11	0.1	195	9.8	8.6	117.5
3		12.3	3.4	3	0.0	76	14.6	12.8	117.3
3		12.5	3.1	1	0.0	71	14.9	13.0	117.3
3		12.2	3.3	1	0.0	90	20.6	10.9	70.9
3		12.3	3.5	0	0.0	78	25.0	13.1	70.2
Observations.
1. todays tests don't look like they have enough resolution for %CO
2. I don't know what scaling they use for %HC in test 3 but it varies a lot percentage wise. Is it apples to apples with the previous HC measurements even?!?
3. The readings at 117 ft/lbs are probably 1st gear
4. The readings at 70ish ft/lbs are probably second gear?
5. what happened to NO% at 7.8 mph?!?
6. CO2 has settled on a value between the 1st test and the second?
7. %O2 has also settled on a value between the 1st and second test?

What is the theory on the cat? Gasoline is pretty volatile, I don't know why you think it takes 800 miles to "clean" it, or why C02 is higher than test 2?
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