I'm just curious:

does the amount of gas injected into the engine increase with each gear? or does the same amount of gas enter the engine no matter what gear you're in.

meaning, is more gas injected into the engine in 2nd gear than in 1st gear? and is more gas injected into the engine in 3rd gear than in 2nd gear?


Thanks in advance.

10/31/2007 6:42:01 PM

it's dependent on a number of things. mainly, engine rpm and load. so while it can increase with each gear, it's not really a rule...

10/31/2007 6:44:35 PM

yeah. an easy answer is ^.

you've got to get the fuel maps to see exactly how much is going into the motor. and if you chip the cars computer, you can do it all yourself.

10/31/2007 6:47:01 PM

yea that all makes sense.

alright guys i appreciate the help.

10/31/2007 6:57:55 PM

sometimes u get more power as u go into higher gears. like on motorcycles the first 2 or 3 gears usually have the timing retarded so u dont go wheelying and killing urself.

of course most ppl take these restrictions off

10/31/2007 7:03:53 PM

where in the fuck did you come up with that idea

10/31/2007 7:19:17 PM

^^I don't get on here much, but it seems like every post I see from you is like "hey look at me I ride bikes". CONGRATULATIONS! WE GET IT!

It'd be one thing if that post had a damn thing to do with the question, but it doesn't.

[Edited on October 31, 2007 at 10:28 PM. Reason : edit]

10/31/2007 10:27:59 PM

There's no gear compensation on the fueling if that's what you're asking. For the exact same engine load in 1st gear and 5th gear, the amount of fuel injected will be the same. Maybe some exotic cars will have compensations built in for each gear, but it's not something you'll find on your every day street car.

11/1/2007 4:47:28 AM

however with the majority of cars today using computer controlled automatic transmissions, the transmission computer does make adjustments to the transmission based on gear selection. SOME vehicles will retard the engine timing based on what gear you have selected. hell some 4wd vehicles even make timing and transmission adjustments based on throttle input and wether you have hi or lo range selected.

11/1/2007 11:24:11 AM

Quote :

"sometimes u get more power as u go into higher gears. like on motorcycles the first 2 or 3 gears usually have the timing retarded so u dont go wheelying and killing urself."

did your ass spelunking buddy slownig tell you that? i swear i'm getting sick of reading this retarded shit

11/1/2007 11:37:40 AM

GSX-Rs (at least the 750 and 1000) used to have that. I can't speak for anything else, but he's right in at least a couple of cases.

[Edited on November 1, 2007 at 11:41 AM. Reason : i know it was 1st, and i think 1st and 2nd. just had to solder a resistor in to trick the circuit]

11/1/2007 11:40:30 AM

^ 1st only though because it was so low, because they had a close ratio from 2nd up, not the first "2-3" gears, and not to limit power, but under a low load in first, it would rev quicker

11/1/2007 11:42:54 AM

Quote :

"There's no gear compensation on the fueling if that's what you're asking. For the exact same engine load in 1st gear and 5th gear, the amount of fuel injected will be the same."

ahhh, ok this is what i was really lookin for. thanks.

11/1/2007 12:08:16 PM