8buck Posted January 26, 2006 Report Share Posted January 26, 2006 Is there one that will work on 2-strokes? Quote Link to comment Share on other sites More sharing options...
reded Posted January 26, 2006 Report Share Posted January 26, 2006 Good question! Quote Link to comment Share on other sites More sharing options...
yamahammer_409 Posted January 27, 2006 Report Share Posted January 27, 2006 Damn good question. Let me do some research on it and I will get back to you. Thanks Ryan J Quote Link to comment Share on other sites More sharing options...
JKJK Posted January 27, 2006 Report Share Posted January 27, 2006 A Digatron unit is what your looking for. Quote Link to comment Share on other sites More sharing options...
8buck Posted January 28, 2006 Author Report Share Posted January 28, 2006 A Digatron unit is what your looking for. 465314[/snapback] Is the Digatron a true AFR meter (O2 sensor) or just a pyrometer (exhaust temp)? Quote Link to comment Share on other sites More sharing options...
Stinger Posted January 29, 2006 Report Share Posted January 29, 2006 Won't an Innovate LM-1 work on 2 strokes? I've got one for tuning my turbo cars and I'm pretty sure I've heard of people using them on 2 strokes as well?? http://www.innovatemotorsports.com/products/lm1.php Quote Link to comment Share on other sites More sharing options...
stuntmasta3o5 Posted January 30, 2006 Report Share Posted January 30, 2006 Won't an Innovate LM-1 work on 2 strokes? I've got one for tuning my turbo cars and I'm pretty sure I've heard of people using them on 2 strokes as well?? http://www.innovatemotorsports.com/products/lm1.php 465840[/snapback] $600?.. ... I think it would be REALLY neat if they had that preload oil mixture thing like the blaster.. Thats just me.. Quote Link to comment Share on other sites More sharing options...
Shee-Male Posted January 30, 2006 Report Share Posted January 30, 2006 I can't see an acctual O2 sensor working on a 2 stroke, thats why when a car burns oil you have to relace them., so if it did work it only would for a shot time. Quote Link to comment Share on other sites More sharing options...
8buck Posted January 30, 2006 Author Report Share Posted January 30, 2006 I can't see an acctual O2 sensor working on a 2 stroke, thats why when a car burns oil you have to relace them., so if it did work it only would for a shot time. 466227[/snapback] That's what I was thinking. But I was hoping there was one out there to run temporary, on a dyno for example, for tuning only purposes only. Hmm, maybe not. Quote Link to comment Share on other sites More sharing options...
OverRaTeD Posted January 30, 2006 Report Share Posted January 30, 2006 I have a LM-1 it is a great tuning tool. It gives me a/f ratio, rpm and can give me many other types of data such as TPS and CHT. You can use it to data log engine pulls and download the data to your laptop. You can overlay data graphs to compare differences your motor changes made to previous runs. You can also compare time to rpm point to see if the engine is rev faster, and making more power. Of course that only works if traction can be controlled, say a 3rd gear pull on pavement. It is the closest thing to a dyno. It does cost a lot, but dyno time cost money too. How many dyno sessions does it cost to reach $535? That is what I paid for the LM-1 with the rpm kit and exhaust adapter. I have used it mainly on my stroked drag Raptor and my YFZ. I have not used it on my Banshee, mainly cause it is not yet running, it is in the beginnings of a 7mm Cub project. I does work on 2 strokes, and any fuel you can think of...gas, gas w/nitrous, diesel, alcohol, methane, nitro etc. They all just have different stoich points. I am going to get a seperate wideband sensor just to use with the two stroke, mainly for consistancy and oil does shorten life of the sensor. I will have to weld a bung on my banshee as the exhaust clamp is too big to fit on most banshee pipes. I'll probably get my pipes steel weld the bungs and then send them out for chrome. Here is some info I got from Innovate concerning using the LM-1 on 2 strokes: "The critical item is the mounting of the sensor. Oil droplets thrown at the sensor cause rich spikes of several seconds while they burn off from the sensor. They can even cause the LM-1 to error out with a 'too rich' error. We found it best to mount the sensor on the inside bent of a header. Centrifugal force tends to keep the oil droplets on the outside of the bend and the sensor is hit less by them. Also a longer bung is of advantage, designed such that only the very tip (rounded tip with small hole) is in the exhaust stream. Because of the oil the sensor lifespan is reduced." Quote Link to comment Share on other sites More sharing options...
antmortem Posted January 30, 2006 Report Share Posted January 30, 2006 I know I will probably get flamed for this, but me and a couple buddies went in on one of those jet4power meters and have had good success with it. You have to weld an o2 sensor bung in the exhaust and we used it strictly for tuning. I read alot of post about how narrowband wouldn't be accurate enough, but none of them had tired it. I talked to a bunch of people who had bought the units and had great success tuning two strokes, so it seemed like a worth investment. My banshee has a gorr port with 34mm pjs and I talked to wesw about jetting them and bought the needles he suggested then hooked up the meter. The sensor was accurate enough to sense a change in needle clip position and my plugs look perfect. If you can get some buddies to go in on it and then just get some o2 sensor bungs from an exhaust shop it might be something to look into. We have used it on a ktm 250, yfz 450, 250r and my banshee with no problems at all and done plug chops as well just to make sure it was on. The sensor has to be warmed up to work well but reads from idle to wot. Just my 2 cents Quote Link to comment Share on other sites More sharing options...
NotsafeFWD Posted January 30, 2006 Report Share Posted January 30, 2006 As far as bung placement, I have an AEM wideband in my Talon and in the instructions it says at least 2 feet away from exhaust ports. The o2 sensor it came with is a pretty much standard universal Bosch unit. I see no reason why it wouldn't work correctly. Typically an over-richened condition will kill o2 sensors, not so much oil content. A narrowband is just to, well, narrow to really give you an accurate reading. They don't display your actual A/F percentage. Not to mention depending on which sensor you use, it might be set differently for what a rich setting would be. Another interesting point would be what would be an acceptable threshhold as far as A/F ratios for a well jetted bolt-on bike compared to a dead stock bike. Than I can figure out how to tune my bike now and if I decide to turbo it, what might be acceptable. Either way, I'm going to be my bike on my dyno and have the o2 probe record what it sees. Stay tuned, I'd like to try this next week. Quote Link to comment Share on other sites More sharing options...
Stinger Posted January 30, 2006 Report Share Posted January 30, 2006 $600?.. ... 466220[/snapback] No, it says right on that page that the LM-1 is $349 (and it's cheaper when not direct from Innovate). That gives you the meter, sensor, cables, etc...everything you need to read and datalog the a/f ratio. Quote Link to comment Share on other sites More sharing options...
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