Diagnostics equipment advice anyone?

[teveo]

Hi, I have come to the conclusion that I need to get equipment to measure co / emissions and air fuel ratio. Would appreciate some feedback from experienced users.

My goal is to adjust and tune my carb and injection systems. I would like to get an instrument that could do both co & af but it is hard to find something at a nice price.

I am considering the Innovate (I or II) for the AF and perhaps ebay for an older heathkit or similar analog analyzer for the co/emissions.

Anyone have recommendations on other / better / combi instruments?

[steinec]

So you have a carb and cis ? Must be pretty cool looking . Have you cosidered taking the car to shop with a dyno and PC interface ? Most of them can get you the data you're looking for and even help tune as well as recommend jet changes.

[911Mac]

A gunson gastester will measure CO and not cost an arm and a leg. You can find them on eBay, not sure if you can even buy one new anymore. It uses a probe you simply stick up the exhaust pipe, perhaps a plus for you if you want to use it on a lot of different cars.
The LM1/2 are AFR meters that use a wideband O2 sensor. Would be harder to switch between several cars. These lend themselves more to permanent installation in a single car. The benefit there is that you get a continual readout of your AFR as you drive.

[berettafan]

gunson colortune is worth having imo. coupled with some sort of fancy schmancy exhaust analyzer you can probably get pretty darned good.

[911pcars]

Originally Posted by 911Mac

A gunson gastester will measure CO and not cost an arm and a leg. You can find them on eBay, not sure if you can even buy one new anymore. It uses a probe you simply stick up the exhaust pipe, perhaps a plus for you if you want to use it on a lot of different cars.
The LM1/2 are AFR meters that use a wideband O2 sensor. Would be harder to switch between several cars. These lend themselves more to permanent installation in a single car. The benefit there is that you get a continual readout of your AFR as you drive.

Gunson's are still available, and from the many ebay ads, the price has increased. About $200-$250 new. They're accurate, but are only able to measure idle and off-idle CO.

http://shop.ebay.com/items/__gunson-gas_W0QQ_kwZgunsonQQ_kwZgasQQ_ckwZtester?_trksid=p 3286.m104.l1199

Sherwood