Anybody built or know of kit that I can move from car to car to test Air/Fuel mixtures on a running; driving car.
Around the 50-100$ dollar mark. I want to use it on a few different cars all with multiple carburetors.
I can balance them but jet sizing is a issue. No sensors in the exhaust, something that I can cram up the exhaust dumps and hold in place for testing.
http://14point7.com/
Ive heard a lot of guys on the megasquirt forum run them. Ive always wanted one. On my next turbo project Im going to have 2 02 sensor bungs, so i can run one of them and my friends LC1 at the same time and check them against each other.
~Alex
for about the same price as the JAW with DIY cable kit and the sensor you can get an AEM off ebay
Some stuff in here might be useful to you, don't know about price range, though.
http://grassrootsmotorsports.com/forum/grm/wideband-o2-sensordisplays/30955/page1/
an O2 sensor and a multi meter should do it..
novaderrik wrote: an O2 sensor and a multi meter should do it..
Nope. You must have the controler in order for the sensor to work.
Alan at 14point7 is a good guy. I have one of his older JAW and NAW units and they work great. I am going to upgrade to his newer unit later this spring. All things being equal I would rather my $$$$ go to Alan.
dean1484 wrote:novaderrik wrote: an O2 sensor and a multi meter should do it..Nope. You must have the controler in order for the sensor to work. Alan at 14point7 is a good guy. I have one of his older JAW and NAW units and they work great. I am going to upgrade to his newer unit later this spring. All things being equal I would rather my $$$$ go to Alan.
A basic O2 sensor- that will work, generally. But for a WB, as I read being requested, dean is right.
Rustspecs13 wrote: http://14point7.com/ Ive heard a lot of guys on the megasquirt forum run them. Ive always wanted one. On my next turbo project Im going to have 2 02 sensor bungs, so i can run one of them and my friends LC1 at the same time and check them against each other. ~Alex
This is pretty cool, But I don;t need the computer aspect or anything else. Really just the output box and the sensor as a package that I don't need to weld into place.
You can just use them for display, no need for a computer 100% of the time.
Also most WB02 sensors are made to have some heat in them. A lot of them have internal heating elements, but I don't know how many actually use them. They are designed to be used near or in the header to use the gases heat. You might need to find one with a option for a "tail pipe sniffer" that's what a lot of dyno operators use.
IMO tail pipe sniffers aren't that accurate. The exhaust reversion will suck air back into the exhaust at lower rpm's. Just when your tuning for driveability. But it has to be better then nothing. I don't know how far it would need to go to be accurate, and you'll also have to worry about the wire getting cooked etc etc.
Isn't it worth welding a bung in near the engine? I mean the whole point is to monitor AFR's accurately and thats pretty much the only way to do it.
~Alex
Rustspecs13 wrote: IMO tail pipe sniffers aren't that accurate. The exhaust reversion will suck air back into the exhaust at lower rpm's.
I wondered about this myself so the last time my car was on the dyno I compared the readings from the tail pipe sniffer and my Innovate LC-1. They were identical for 3 pulls with plenty of idling in between so I quit worrying. I don't think it is that big of an issue.
Rustspecs13 wrote: Also most WB02 sensors are made to have some heat in them. A lot of them have internal heating elements, but I don't know how many actually use them. They are designed to be used near or in the header to use the gases heat. you might need to find one with a option for a "tail pipe sniffer" that's what a lot of dyno operators use. ~Alex
they ALL do. That's how they primarilly work. All of the UEGO's have to maintain a pretty specific temperature to work right, and half of the detailed controls is about maintaining that temperature. The other half is about moving O2 (air is really pumped down a wire).
A WB/UEGO without a controller is pretty useless.
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