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I'm going to be moving to Ontario next year. I'm in the process of getting my first set of mods going. I am adding sway bars and the Quaife LSD. May also do the CF vents, desnork and coilovers. Plus Blizzaks. I have already done the Softronic retuning.
Here's my question - I have been teasing around the idea of doing the breathing mods - plenum, cats, exhaust.
There's some pretty strict air quality testing in Ontario - particulate, visible exhaust and NOx are the biggies. Will I mess up my ability to pass the tests?
I don't know the theory well enough to predict the outcomes well. Does stuffing more air through the engine help or hurt?
Any MechEs in the crowd?
Dfogal.
Plenum
The plenum is the piece that goes between the Cayman throttle body and the intake runners. The factory piece is a long black plastic tube with a divider down the middle. There are aftermarket replacements which are designed to allow the air to flow easier/faster into the engine and increase horsepower and torque.
LSD - Limited Slip Differential
A limited slip differential (LSD) is a modified or derived type of differential gear arrangement that allows for some difference in rotational velocity of the output shafts, but does not allow the difference in speed to increase beyond a preset amount. In an automobile, such limited slip differentials are sometimes used in place of a standard differential, where they convey certain dynamic advantages, at the expense of greater complexity.
The main advantage of a limited slip differential is found by considering the case of a standard (or "open") differential where one wheel has no contact with the ground at all. In such a case, the contacting wheel will remain stationary, and the non-contacting wheel will rotate freely– the torque transmitted will be equal at both wheels, but will not exceed the threshold of torque needed to move the vehicle, thus the vehicle will remain stationary. In everyday use on typical roads, such a situation is very unlikely, and so a normal differential suffices. For more demanding use however, such as driving off-road, or for high performance vehicles, such a state of affairs is undesirable, and the LSD can be employed to deal with it. By limiting the velocity difference between a pair of driven wheels, useful torque can be transmitted as long as there is some friction available on at least one of the wheels.
To see the installation of a LSD style unit Click Here -> Article Forthcoming Stay Tuned
Softronic
SOFTRONIC produces DME programming and hardware to suit your companies specifications. Our current software suite is a complex matched set of programs housed in a Flash Manager and Flash Client. This software is matched with two cables, an End User and Master Cable. The SOFTRONIC proprietary flashing solution outperforms all other combinations in speed and accuracy including the factory Porsche equipment.
I'm going to be moving to Ontario next year. I'm in the process of getting my first set of mods going. I am adding sway bars and the Quaife LSD. May also do the CF vents, desnork and coilovers. Plus Blizzaks. I have already done the Softronic retuning.
Here's my question - I have been teasing around the idea of doing the breathing mods - plenum, cats, exhaust.
There's some pretty strict air quality testing in Ontario - particulate, visible exhaust and NOx are the biggies. Will I mess up my ability to pass the tests?
I don't know the theory well enough to predict the outcomes well. Does stuffing more air through the engine help or hurt?
Any MechEs in the crowd?
Dfogal.
Ontario, California is as strict a place as any in the world. Bottom line: a CEL equals automatic failure. A visual inspection that indicates anything non-stock without a CARB sticker...fail...then you have to go in to see the car-proctologists. And you get put on a "possible evil polluter" list.
The CEL is the ultimate arbiter. As far as I know, you can't pump enough bad stuff past the engine monitoring stuff to make a difference without throwing a CEL.
Ontario, Canada ? I think they have exhaust sniffing moose that are even more strict.
Plenum
The plenum is the piece that goes between the Cayman throttle body and the intake runners. The factory piece is a long black plastic tube with a divider down the middle. There are aftermarket replacements which are designed to allow the air to flow easier/faster into the engine and increase horsepower and torque.
LSD - Limited Slip Differential
A limited slip differential (LSD) is a modified or derived type of differential gear arrangement that allows for some difference in rotational velocity of the output shafts, but does not allow the difference in speed to increase beyond a preset amount. In an automobile, such limited slip differentials are sometimes used in place of a standard differential, where they convey certain dynamic advantages, at the expense of greater complexity.
The main advantage of a limited slip differential is found by considering the case of a standard (or "open") differential where one wheel has no contact with the ground at all. In such a case, the contacting wheel will remain stationary, and the non-contacting wheel will rotate freely– the torque transmitted will be equal at both wheels, but will not exceed the threshold of torque needed to move the vehicle, thus the vehicle will remain stationary. In everyday use on typical roads, such a situation is very unlikely, and so a normal differential suffices. For more demanding use however, such as driving off-road, or for high performance vehicles, such a state of affairs is undesirable, and the LSD can be employed to deal with it. By limiting the velocity difference between a pair of driven wheels, useful torque can be transmitted as long as there is some friction available on at least one of the wheels.
To see the installation of a LSD style unit Click Here -> Article Forthcoming Stay Tuned
Softronic
SOFTRONIC produces DME programming and hardware to suit your companies specifications. Our current software suite is a complex matched set of programs housed in a Flash Manager and Flash Client. This software is matched with two cables, an End User and Master Cable. The SOFTRONIC proprietary flashing solution outperforms all other combinations in speed and accuracy including the factory Porsche equipment.
I guess plenum is a safe bet or else move to BC where there is no emission testing for vehicles newer then 2000
Plenum
The plenum is the piece that goes between the Cayman throttle body and the intake runners. The factory piece is a long black plastic tube with a divider down the middle. There are aftermarket replacements which are designed to allow the air to flow easier/faster into the engine and increase horsepower and torque.
While CEL's are bad, the Softronic tuning will prevent you from getting an exhaust related CEL.
Softronic
SOFTRONIC produces DME programming and hardware to suit your companies specifications. Our current software suite is a complex matched set of programs housed in a Flash Manager and Flash Client. This software is matched with two cables, an End User and Master Cable. The SOFTRONIC proprietary flashing solution outperforms all other combinations in speed and accuracy including the factory Porsche equipment.
I have already done the 
Linear Mode
