I melted the last piston on my lt500 this weekend. I want to know egts work good on quads? what are you running and are you happy with it? thanks jason

 

digatron makes awesome egts. Check them out. They make egt's with various options best suited for your machine. I.E. single cyl, twin cyl, triple, and what functions you want.

 

lol - i was just thinking if they made these for quads/trikes on the can. i knew the toilet would bring more good than stinky waste.

 

i think etgs are a great idea,idont have one yet but i need one for my current project. when i was runnig methenol i had a hard time reading plugs and i smooked numrious top ends -led to smoking my krank and rod berings,by knowing if your bike is too lean before you explode your top end will save you time, money,and fustration,i think your etg should read no more than 1100 degrees,1inch away from exhuast flange

 

can we get more info on this from someone? would the 43KL ( http://www.digatron.cc/Frames/productsfra.htm ) be the one to get?

 

Instead of spending all the money on an egts you could simply buy a temp sensor (Type K Thermocouple, isolated junction). Thread this into a spare pipe you have, about 6 inches from exhaust port, traslates to about 1-2 inches from exhuast flange depending on your engine. These sensors change their resitance depending on temp. so you can hook up a digital ohm meter ($30 from radio shack and even cheaper else where). The temp sensor specs will tell you what ohm value corresponds to what temp value. If you are just going to use this for tuning purposes it is a hell of alot cheaper to do it this way, if you want it constantly connected to your machine spend the money and buy a egts. JMO

 

i thought a tach/egt unit would be good. and of course for Datalogging.

 

FYI, egt's do not give you all necessary information. In fact, if you are experiencing preignition (not a good thing), the exhaust temps may actually go down. This is due to the fact that a preignited mixture has a longer time to cool down before reaching the exhaust probe. Head temperature probes can give you some warning for detonation. Are you using at least a blend of race fuel? If not, you may have detonation (even in a stock 500). What does the wasted piston look like? Having your new piston ceramic coated is added insurance ($25-$35). BTW, I install a Digitron egt off my snowmobile for testing purposes and then remove it for general riding. Talk to the pipe manufacturer for proper probe placement since all are a little different. If it is placed too close to the piston, raw gas will cool the probe. If it is too far away, the exhaust may have radiated some of its heat away.