Stomp77 Posted December 5, 2003 Report Posted December 5, 2003 Hi all, I just went to school for electronics, and have been looking into manufacturing a tachometer for the banshee. My buddies sled has one that reads the fire from the plugs, each plug fires independantly per the coil. Thus the sled gets accurate tach readings from the coil thru the lead wire connected to the plugs themselves. Its battery powered, DC voltages. I can setup a diode bridge and hook in a battery to the banshee no problem, however. I believe the banshee fires both plugs at the same time, but only one cylinder fires because the other lacks a fuel/air charge. Different from the the snowmobiles. The principle remains the same however and my preliminary tests show similar results. Using the same type of connection: a small lead running to the bottom of each spark plug, It will measure rpm's by "counting" the number of "sparks" per second, coming from the coil or rather hom many fires per second. It can also give accurate cylinder temps via the plugs. 2 small gauges will display the readouts, right now i have seperate guages but i can combine them into one small cluster. Are any of you intersted in having one of these on your banshee? I will post pics of my progress as soon as i can get ahold of a camera. so, what do you guys think? any kinda feedback is appreciated!!!! thanks Quote
bansheeman8 Posted December 5, 2003 Report Posted December 5, 2003 sounds good I might look into one Quote
cOoLDeviL Posted December 5, 2003 Report Posted December 5, 2003 thear is a company called tinytach it has small display that shows the engien rpm on 2 strock or 4 strock atv's and you can use it for 2 or 1 cylender and thear website is http://www.tinytach.com/tinytach.html and i'm thinking of getting one for my banshee .... Quote
BansheeRider576 Posted December 7, 2003 Report Posted December 7, 2003 Sounds good i have thought about it myself because the tach for my dads outboard two stroke boat motor works the same way and was going to use one of those but i would need a battery.. that is the problem... Acid batteries are cheap but leak when you do alot of jumping while gel batteries can be pricey... Then even if you can afford the battery it is extra weight added to your quad... But then there are the possitive affects of the battery like your headlights will no longer die down when its not revved up.... So ya see a tach for a banshee can have positive affects and negative its all what you want i guess... I had wanted one for drag racing but no longer have the need for it for i am getting into motocross... I know quite a few people who might be interested tho so let me know and you might be able to make some good money of your design... Quote
jinx44 Posted December 9, 2003 Report Posted December 9, 2003 I have used the tiny tach before on a 2-stroke polaris. They are hard to read since they are digital and they only sample like twice a second so the instantaneous accuracy isn't that great. You might keep in mind that a couple of polaris guys I know take the signal from the lighting output which only makes voltage once per rev. I tried it on my banshee and it didn't work. I haven't had time to sit down and figure out why though. Quote
Stomp77 Posted December 27, 2003 Author Report Posted December 27, 2003 This has turned into a serious project!!!!! I finally have all of the piece's ( iTHINK?) to make this work spectacularly well after the new year i will be able to start fabricating the proto-type and begin the process of installing and testing, testing, testing!!! I FINALLY got my video capture card working right, so videos and pics of my progress are in the worx...... Quote
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