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Discussion Starter · #1 ·
hey when you put bigger carbs and bigger jets on your sled to make it take in more fuel and air ...when you have a rotary intake how does your engine get more OIL too...is that the point of changing the rotary valve??..thanks for the help
 

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Discussion Starter · #3 ·
wut would you guys suggest .trying to frig with the oil cable of premixing it..id say all just premix it ...is the carbs are 34mm now and 260 jets and i go to 40mm carbs with 410 jets how much oil would you guys say to put in the gas and still have the oil injection putting gs in to..thanks
 

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So you think all the sudden your sled will run properly with "alot more gas" When you increase the diameter of the carbs for a given engine size you decrease the velocity of air flow through the carb. The reason for the larger main jets in the carbs is that there is less "signal" pulling the fuel up through the jet. Ideally, your engine will not take any more fuel to run now than it does with 34s, just need more room for the "slower" fuel to get into the air/fuel mix. Big carbs are better for 2-3 hp on top and wosre throttle response. Keep the oil pump at stock settings though...:div20:
 
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