what is the duty cycle of stock 19lb injetor

neon angel · Post by **neon angel** » Mon Dec 15, 2008 6:01 pm

like the title says are the all the same or dose it very car to car

Donkeypuncher · Post by **Donkeypuncher** » Mon Dec 15, 2008 6:30 pm

I would think most neons are about the same, but higher elevation neons would probably be the most different. Something about the thinner air with less oxygen. Cold temps do affect it some, but I doubt it would be a huge difference.

We're all running the same ecu with the same software so there really shouldn't be a big variance unless it's highly modified or has a MS.

Post by **occasional demons** » Mon Dec 15, 2008 11:13 pm

IIRC the max recomended is 80%, but it shouldn't matter what engine it is in. The injectors are sized to the cyl. displacement, so it doesn't matter how many there are, it just has to worry about it's one cyl. The actual % of duty cycle depends on the demand of the engine. So if it is in a larger displacement engine, or one programmed for more fuel, the % of the duty cycle may be over 80% for extended periods of time causing it to basically burn out the solenoid coil. (Provided it keeps the engine from going lean but still is above the max recommended percentage) On the other end if it can't get the % low enough the engine will run too rich.