anyone pass CA smog with a non-stock cam?
01-24-2007, 09:37 AM
#16
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Originally Posted by pete000
With cat in place I think the car would pass with cams and even a chip. The cat really sucks it up...
01-24-2007, 10:18 AM
#17
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Steve,
Saw the test was done at 15mph and 25 mph . What gear was used for the test ? Did they ever check at idle ?
Just curious . We have no emmissions testing here ! but that may change .
Guess they would go for a US test if it ever comes.
Thanks
Geoff
Saw the test was done at 15mph and 25 mph . What gear was used for the test ? Did they ever check at idle ?
Just curious . We have no emmissions testing here ! but that may change .
Guess they would go for a US test if it ever comes.
Thanks
Geoff
01-24-2007, 10:38 AM
#18
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Originally Posted by Red rooster
Steve,
Saw the test was done at 15mph and 25 mph . What gear was used for the test ? Did they ever check at idle ?
Just curious . We have no emmissions testing here ! but that may change .
Guess they would go for a US test if it ever comes.
Thanks
Geoff
Saw the test was done at 15mph and 25 mph . What gear was used for the test ? Did they ever check at idle ?
Just curious . We have no emmissions testing here ! but that may change .
Guess they would go for a US test if it ever comes.
Thanks
Geoff
No, they do not test it at idle?
01-24-2007, 11:06 AM
#20
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Originally Posted by Red rooster
Steve,
I asked about idle as that is the worst place to test tailpipe emmissions when the motor has cams !!
Thanks for the heads up.
Geoff
I asked about idle as that is the worst place to test tailpipe emmissions when the motor has cams !!
Thanks for the heads up.
Geoff
01-24-2007, 01:04 PM
#21
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let me know if you need another Cat to pass smog - i happen to have a second one here at the house for some unknown reason along with a another set of mufflers (primary and secondary)
Rob
Rob
01-25-2007, 10:28 AM
#22
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Originally Posted by Steven C.
Last test, no cat: High speed(25mph) / low speed(15mph)
HC(PPM) std 157 reading 88 / std 162 reading 61
CO (%) std 1.00 reading .67 / std .91 reading .65
CO2(%) reading 14.1 / reading 14.2
O2(%) reading .8 / reading .8
NOx(ppm)std 1121 reading 986 / std 1227 reading 1161
Dilution std >6 reading 14.8 / std >6 reading 14.9
HC(PPM) std 157 reading 88 / std 162 reading 61
CO (%) std 1.00 reading .67 / std .91 reading .65
CO2(%) reading 14.1 / reading 14.2
O2(%) reading .8 / reading .8
NOx(ppm)std 1121 reading 986 / std 1227 reading 1161
Dilution std >6 reading 14.8 / std >6 reading 14.9
High speed(25mph) / low speed(15mph)
HC(PPM) std 114 / std 88
CO (%) std 0.73 / std 0.61
CO2(%) std 14.6 / std 14.7
NOx(ppm) std 785 / std 724
In CA your NOx of 986/1161 would have failed the test. Also note the CA standards are tighter for the HC and CO but you passed these.
FWIW, my 1992 C2 failed in CA once because the Catalytic Converter was not warmed up enough for the test, causing me much grief.
01-25-2007, 10:56 PM
#23
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Do any of you know if our "Air Care" regs up here in British Columbia Canada are the same as the Cali ones??
I too am running without a cat and was told it should still pass?
I too am running without a cat and was told it should still pass?
01-26-2007, 12:05 AM
#24
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When our cars had their exhaust emissions originally certified by Porsche they were polluting;
Code:
MANUFACTURER CERTIFICATION LEVELS
ENGINE FAMILY/EVAP-EMISS FAM EXHAUST EMISSIONS EVAPOR.
(DISPLACEMENT) T (GRAMS/MILE) EMISSIONS
CARLINES COVERED ENGINE R EQUIV (GRAMS)
DISP.& A S TEST ACT. OXIDES
VEHICLE CARLINE CARB N I WEIGHT DYNO AXLE HYDRO- CARBON OF HYDRO-
REPRESENTED EMISSION CONTROL SYSTEM VENTURISS L (LBS) HP RATIO CARBONS MONOXIDE NITROGEN CARBONS
PPR220V5FC26 / PPR1084AYPOC ENGINE-SYSTEM COMBINATION # = 1
(220-CU.IN.)
911 CARRERA 4/2 C 911 CARRERA 4/2 3CL/ / / / /CAN 220-FI L-4 N 3500 7.1 3.56 0.24 1.6 0.14 N/A
911 CARRERA 4/2 C 911 CARRERA 4/2 3CL/ / / / /CAN 220-FI L-4 N 3375 7.1 3.67 0.22 1.8 0.14 1.6 *
C 911 CARRERA 4/2 3CL/ / / / /CAN 220-FI M-4 N 3500 7.1 3.56 0.23 1.6 0.14 N/A
C 911 CARRERA 4/2 3CL/ / / / /CAN 220-FI M-5 N 3500 8.1 3.33 0.25 1.6 0.18 N/A
C 911 CARRERA 4/2 3CL/ / / / /CAN 220-FI M-5 N 3625 8.8 3.44 0.22 1.4 0.19 N/A
C 911 CARRERA 4/2 3CL/ / / / /CAN 220-FI M-5 N 3500 7.1 3.33 0.29 1.6 0.16 N/A
(EXHAUST DETERIORATION FACTORS FOR - 3CL/ / / / / FAMILY PPR220V5FC26 : 1.300 1.200 1.100 N/A )
(EVAPOR. DETERIORATION FACTORS FOR - / / / / /CAN FAMILY PPR1084AYPOC : N/A N/A N/A 0.400)
01-26-2007, 08:48 AM
#26
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Originally Posted by Cupcar
Reading from my last smog report I note the California smog specs for a 1992 C2 are:
High speed(25mph) / low speed(15mph)
HC(PPM) std 114 / std 88
CO (%) std 0.73 / std 0.61
CO2(%) std 14.6 / std 14.7
NOx(ppm) std 785 / std 724
In CA your NOx of 986/1161 would have failed the test. Also note the CA standards are tighter for the HC and CO but you passed these.
FWIW, my 1992 C2 failed in CA once because the Catalytic Converter was not warmed up enough for the test, causing me much grief.
High speed(25mph) / low speed(15mph)
HC(PPM) std 114 / std 88
CO (%) std 0.73 / std 0.61
CO2(%) std 14.6 / std 14.7
NOx(ppm) std 785 / std 724
In CA your NOx of 986/1161 would have failed the test. Also note the CA standards are tighter for the HC and CO but you passed these.
FWIW, my 1992 C2 failed in CA once because the Catalytic Converter was not warmed up enough for the test, causing me much grief.
So big cams with a cat pass easily.
01-26-2007, 10:21 AM
#27
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Thread Starter
Originally Posted by northfire
what are the baseline "passing grade" emissions for california???
The maximum allowed values are:
HC(PPM) at idle: 120
HC(PPM) at 2500 RPM:140
CO% at idle and 2500RPM: 1.00
%CO2 and %O2 are also measured, but there are no maximum allowed amounts.
It's interesting that one engine that is blowing oil past the piston rings so much there's constant blue smoke, still passes! I was scared it would not do it because it was totally stinking up the testing garage!
Here are a healthy C4's readings:
HC at idle: 9 measured - 120 max allowed
HC at 2500: 2 measured - 140 max
CO% at idle and at 2500: 0 measured, 1.00 max
My stinky C4's readings:
HC at idle: 53 (!!!)
HC at 2500: 22
CO% at idle: 0.04
CO% at 2500: 0.09
01-26-2007, 10:57 AM
#28
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Garrett,
Thats interesting. The HC/CO values are almost acheivable without a cat ! ,
certainly the CO.
Is there a vehicle age difference for the limits ? So a much newer car has tougher limits ?
Its encouraging that CA limits for your 964 dont look too bad.
Our emmission limit is if the DRL and high level stop light works !!!
Geoff
Thats interesting. The HC/CO values are almost acheivable without a cat ! ,
certainly the CO.
Is there a vehicle age difference for the limits ? So a much newer car has tougher limits ?
Its encouraging that CA limits for your 964 dont look too bad.
Our emmission limit is if the DRL and high level stop light works !!!
Geoff
01-26-2007, 12:11 PM
#29
RL Community Team
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Originally Posted by Red rooster
Is there a vehicle age difference for the limits ? So a much newer car has tougher limits?
I also thought it was interesting that NOx's are not part of the measurement in these tests.