Quote
Big Shot
A snapping or crackling noise is a dead givaway. If a tractor runs gears close to what everybody else is running and other tractors snuff on occasion and that one never does. If it is with a group of tactors that are well tuned and it is 50' ahead like you said. Look for the tractor to smoke bad at idle and when starting to rev up. If they are using alot of NOS they will need fuel to not run too lean. The sniffer can check for extra O2 in the crank case, but you allmost need to be checking at the end of the run almost while you are spinning out or snuffing. Some guys run CO2 into the crank case to cancel out high O2 in the crankase or if you would take an oil sample to test. Many many people have ran and are running NOS and gotten away with it. Hard to catch since people will go to any length to cheat. Hide the bottle in the water tank. Thats been proven. In any tranny housing. Rear ends. Oil pans. Big valve covers-sneeky Pete. It is only cheating if you get caught. I don't know if your group travels. If you are away from home after 2 or 3 pulls and on the next pull the tractor looks to be down 200hp the bottle may be empty or to low on pressure based on temps. Big bottles need purging. You can get creative drilling holes through housing and internal lines and wiring. NOS is like no other cheating or pushing rules to the limit. It is the ultimate cheating. If you get caught with NOS you should be kicked out for life and all the way through your great great grandkids. Many groups do so little checking some guys don't even hid it very well. I saw a bottle "hid" right behind the side shield. A machine shop in WI was very good setting up and installing systems. I don't know if they are still into it or not. I was "propositioned" at leaste 3 times I had been there to pick up parts. I have not gotten anything from that shop for about 5 years so I don't know if they are still into this. Can I ask what group are you from? For Heavens sake don't name the person you think may be cheating. Jake will have a snit and delete your post. Some people think NOS is not in tractor pulling. Call 5 NOS system manufacturers and ask for a setup for trator pulling. 4 of them will have a kit ready to go that day. A dyno proven kit. They will also tell you how good NOS works with diesels. By the way propane does very well with diesel. Almost as good as NOS only harder to detect. Put propane on a diesel pickup and you can go up a mountian in MT with a 5th wheel camper and not even loose a mph. Like a pulling tractor that never comes down on the end of the track even on clay.