Gaz analyser, what brand

[iiXii]

Hello,

Do you have good plan for buy gaz analyser for CO/CO2 ?
What is a cheap good brand ?

Have a nice day
Nicolas

[bkreigsr]

have you tried google or bing?

within the MFI crowd that does their own tuning, its usually Gunson

Amazon.com: Exhaust Gas Analyzer

[theiceman]

innovate LM-1 is a good meter but is certainly not cheap.

[911pcars]

Gunson is mainly designed to measure idle CO. It's only effective on the road at steady state RPM/throttle position. It's not as responsive as a proper wide band O2 system.

Sherwood

[Josh D]

Originally Posted by 911pcars

Gunson is mainly designed to measure idle CO. It's only effective on the road at steady state RPM/throttle position.
Sherwood

This is a conflicting statement to me. Idle and steady state driving down the road are two different conditions.
Are you saying that it is designed for measuring CO at idle, but doesn't work well in this capacity, but works well at a steady cruise?

[911pcars]

Originally Posted by Josh D

This is a conflicting statement to me. Idle and steady state driving down the road are two different conditions.
Are you saying that it is designed for measuring CO at idle, but doesn't work well in this capacity, but works well at a steady cruise?

I could see how my response could be confusing. The Gunson is most accurate and useful under steady state engine operation. This includes both idle and constant throttle/RPM. Variations in throttle opening take awhile to register on the display.

In addition, for road use, suggest fabricating a clamp to hold the sensor assembly in the tailpipe. The supplied spring-tension retention system will not prevent the exhaust from spitting this out. added:... nor prevent the exhaust from melting the PVC collection hose feeding the gas analyzer.

Sherwood

[jason2guy]

U should install a wideband o2 controller. Itll open up tuning capabilities that you dont have with the stock o2 sensor.

[Josh D]

Originally Posted by 911pcars

I could see how my response could be confusing. The Gunson is most accurate and useful under steady state engine operation. This includes both idle and constant throttle/RPM. Variations in throttle opening take awhile to register on the display.

In addition, for road use, suggest fabricating a clamp to hold the sensor assembly in the tailpipe. The supplied spring-tension retention system will not prevent the exhaust from spitting this out.

Sherwood

Ok, that makes sense. Good for base idle CO setting on a CIS car, but not so good for measuring CO in dynamic conditions.

Thanks for clarifying.