Originally posted by speedracer0_7
from what i've seen motors don't last very long, about 10 to 15 hrs. run time on a piston and sleeve. i suggest checking the rod after each gallon and if u detect any play at all replace rod and measure rod pin on crank. 4 some reason airplane motors never seem 2 wear out, more oil and cooler cleaner air i guess
One reason airplane engines last longer is beacuse The people that fly planes(like me) use fuel with lots of oil and only about 10% nitro. The reason people are only getting 2-3 gallons out of car engines is beacuse they are using 20-30% nitro with 8-15% oil(thier may even be lower oil percentages). With this fuel a engine will produce more horsepower but It wont last near as long as a engine running on high lube fuel. I really dont understand why people can spend 200 dollars on a engine and then fry it in 3 gallons using fuel with high nitro and low oil precentage. Lets not turn this into a fuel thread as thier is already another active one going on but fuel plays a major part in how long a engine will last.