Timing advance rare question
11-18-2005, 07:34 PM
#1
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Timing advance rare question
After reading many stories about how much more powerful the car gets after advancing its ignition timing I decided to do the same thing. The only thing Im worried about is the decrease in reliability in a long run (I know that it will not kill your engine in two weeks.)
As far as I understand, advancing ignition increases the maximum cylinder pressures and temperature because the explosion of air/fuel mixture does more work. I plan to keep this car for at least 4 years. Right now I got 77k miles and Ill be putting extra 15k miles every year.
Do you think I should go for it or not?
Also, is 15 +/- 2 degrees everyone is talking about a manufacturing tolerance or its an allowed range of adjustment?
Any input will be appreciated.
One more thing, those of you who ganna say that its a repost and advancing timing was discussed a million times, I have read those threads, and I was not able to find the answer to this question.
As far as I understand, advancing ignition increases the maximum cylinder pressures and temperature because the explosion of air/fuel mixture does more work. I plan to keep this car for at least 4 years. Right now I got 77k miles and Ill be putting extra 15k miles every year.
Do you think I should go for it or not?
Also, is 15 +/- 2 degrees everyone is talking about a manufacturing tolerance or its an allowed range of adjustment?
Any input will be appreciated.
One more thing, those of you who ganna say that its a repost and advancing timing was discussed a million times, I have read those threads, and I was not able to find the answer to this question.
11-18-2005, 08:16 PM
#2
15 degrees is the "standard" timing for most maximas - some high-altitude-sold maxes were sold at 13 or 14 degress to make up for the thin air. The FSM gives an "acceptable" or "within-spec" range of 15 degrees +/- 2 degrees. To that end, the Nissan CONSULT II tool will only allow you to change the timing on the 00-01 between 13 and 17 degrees.
To advance it more, you'd have to try to tap into the system somehow on your own.
the downside is that you will need to run Super gasoline all the time, or you WILL get knocking. I don't believe that it is harmful to the engine, and it's an OLD, OLD trick that my dad used to do on our cars all the way back into the 70s (Audis, volvos, Hondas, etc....all daily drivers, not performance cars).
the upside is not necessarily "more power" but stronger and quicker throttle response. The car really "jumps" when you hit the gas and seems to have a bit more pull if you jump on the gas quickly while cruising....
Like I said though, 17 degrees IS within Nissan's stated "within spec" range, and I seriously doubt it would have any effect on the longevity of your engine. The engine tolerances are far stronger than what the stock engine puts out, and any small increase in piston pressures would not be enough to hurt anything.
I say go for it...I'm happy I did.
To advance it more, you'd have to try to tap into the system somehow on your own.
the downside is that you will need to run Super gasoline all the time, or you WILL get knocking. I don't believe that it is harmful to the engine, and it's an OLD, OLD trick that my dad used to do on our cars all the way back into the 70s (Audis, volvos, Hondas, etc....all daily drivers, not performance cars).
the upside is not necessarily "more power" but stronger and quicker throttle response. The car really "jumps" when you hit the gas and seems to have a bit more pull if you jump on the gas quickly while cruising....
Like I said though, 17 degrees IS within Nissan's stated "within spec" range, and I seriously doubt it would have any effect on the longevity of your engine. The engine tolerances are far stronger than what the stock engine puts out, and any small increase in piston pressures would not be enough to hurt anything.
I say go for it...I'm happy I did.
11-18-2005, 08:28 PM
#3
Supporting Maxima.org Member
Join Date: Dec 2004
Location: Lakeland, FL
Posts: 1,587
the reason it isnt 17Ί from the factory is in case there is a shortage of fuel or for some reason 91+ isnt available, you can get by with 89 and 'decreased performance'
11-18-2005, 11:47 PM
#5
I want to advance timing, my friend has a 91 Sentra with 15 (that's tops). Since i use super gas all the time anyways, i thought i might as well try it.
Where do you get/borrow Consult II's? -Dealer? Autozone?
Where do you get/borrow Consult II's? -Dealer? Autozone?
11-19-2005, 12:45 AM
#7
Senior Member
Join Date: Dec 2004
Posts: 125
Originally Posted by irish44j
15 degrees is the "standard" timing for most maximas - some high-altitude-sold maxes were sold at 13 or 14 degress to make up for the thin air. The FSM gives an "acceptable" or "within-spec" range of 15 degrees +/- 2 degrees. To that end, the Nissan CONSULT II tool will only allow you to change the timing on the 00-01 between 13 and 17 degrees.
To advance it more, you'd have to try to tap into the system somehow on your own.
the downside is that you will need to run Super gasoline all the time, or you WILL get knocking. I don't believe that it is harmful to the engine, and it's an OLD, OLD trick that my dad used to do on our cars all the way back into the 70s (Audis, volvos, Hondas, etc....all daily drivers, not performance cars).
the upside is not necessarily "more power" but stronger and quicker throttle response. The car really "jumps" when you hit the gas and seems to have a bit more pull if you jump on the gas quickly while cruising....
Like I said though, 17 degrees IS within Nissan's stated "within spec" range, and I seriously doubt it would have any effect on the longevity of your engine. The engine tolerances are far stronger than what the stock engine puts out, and any small increase in piston pressures would not be enough to hurt anything.
I say go for it...I'm happy I did.
To advance it more, you'd have to try to tap into the system somehow on your own.
the downside is that you will need to run Super gasoline all the time, or you WILL get knocking. I don't believe that it is harmful to the engine, and it's an OLD, OLD trick that my dad used to do on our cars all the way back into the 70s (Audis, volvos, Hondas, etc....all daily drivers, not performance cars).
the upside is not necessarily "more power" but stronger and quicker throttle response. The car really "jumps" when you hit the gas and seems to have a bit more pull if you jump on the gas quickly while cruising....
Like I said though, 17 degrees IS within Nissan's stated "within spec" range, and I seriously doubt it would have any effect on the longevity of your engine. The engine tolerances are far stronger than what the stock engine puts out, and any small increase in piston pressures would not be enough to hurt anything.
I say go for it...I'm happy I did.
oh and is it a day mod?
11-19-2005, 05:05 AM
#9
I've read the advanced timing threads and notice that most people who do this have a UDP installed. Is it more benificial to have a UDP + advanced timing or will a non-UDP + advanced timing will work just as well?
11-19-2005, 10:45 AM
#13
Senior Member
Join Date: Jun 2004
Posts: 197
haha i was looking for the advancing timing thread for like 2 days now, i coudn't find anything that was very informative. this is awsome, now i know what it does, how the car feels and where to get it done.
thanks guys.
thanks guys.
11-19-2005, 01:21 PM
#14
As soon as I got mine done I noticed an immediate improvement in response and off the line power. Imagine you have 2 or 3 friends in the car with you; when they get out the car feels quite a bit lighter right? Advancing the timing is comparable to that experience.
11-19-2005, 01:36 PM
#15
Originally Posted by kobalt
As soon as I got mine done I noticed an immediate improvement in response and off the line power. Imagine you have 2 or 3 friends in the car with you; when they get out the car feels quite a bit lighter right? Advancing the timing is comparable to that experience.
has anyone dynoed either a 5th for 5.5 gen max after advancing the timing?
11-19-2005, 02:08 PM
#16
Originally Posted by MxdOut97
i thought doing this to a 5.5 gen wasnt as effective as opposed to doing it to a 5.0 gen. is this true?
has anyone dynoed either a 5th for 5.5 gen max after advancing the timing?
has anyone dynoed either a 5th for 5.5 gen max after advancing the timing?
11-19-2005, 02:08 PM
#17
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Originally Posted by irish44j
15 degrees is the "standard" timing for most maximas - some high-altitude-sold maxes were sold at 13 or 14 degress to make up for the thin air. The FSM gives an "acceptable" or "within-spec" range of 15 degrees +/- 2 degrees. To that end, the Nissan CONSULT II tool will only allow you to change the timing on the 00-01 between 13 and 17 degrees.
To advance it more, you'd have to try to tap into the system somehow on your own.
the downside is that you will need to run Super gasoline all the time, or you WILL get knocking. I don't believe that it is harmful to the engine, and it's an OLD, OLD trick that my dad used to do on our cars all the way back into the 70s (Audis, volvos, Hondas, etc....all daily drivers, not performance cars).
the upside is not necessarily "more power" but stronger and quicker throttle response. The car really "jumps" when you hit the gas and seems to have a bit more pull if you jump on the gas quickly while cruising....
Like I said though, 17 degrees IS within Nissan's stated "within spec" range, and I seriously doubt it would have any effect on the longevity of your engine. The engine tolerances are far stronger than what the stock engine puts out, and any small increase in piston pressures would not be enough to hurt anything.
I say go for it...I'm happy I did.
To advance it more, you'd have to try to tap into the system somehow on your own.
the downside is that you will need to run Super gasoline all the time, or you WILL get knocking. I don't believe that it is harmful to the engine, and it's an OLD, OLD trick that my dad used to do on our cars all the way back into the 70s (Audis, volvos, Hondas, etc....all daily drivers, not performance cars).
the upside is not necessarily "more power" but stronger and quicker throttle response. The car really "jumps" when you hit the gas and seems to have a bit more pull if you jump on the gas quickly while cruising....
Like I said though, 17 degrees IS within Nissan's stated "within spec" range, and I seriously doubt it would have any effect on the longevity of your engine. The engine tolerances are far stronger than what the stock engine puts out, and any small increase in piston pressures would not be enough to hurt anything.
I say go for it...I'm happy I did.
Originally Posted by BewstAdd1ct
the reason it isnt 17Ί from the factory is in case there is a shortage of fuel or for some reason 91+ isnt available, you can get by with 89 and 'decreased performance'
11-19-2005, 04:30 PM
#18
Originally Posted by trebor317
hey irish how much does having ur timing changed cost? Like a rough estimate? because i wouldnt be able to do that to my car I dont know anything about tuning like that.... oh and is it a day mod?
oh and is it a day mod?
Originally Posted by tedo007
I could have sworn the 00FSM says 15 +\- 5
Originally Posted by MxdOut97
i thought doing this to a 5.5 gen wasnt as effective as opposed to doing it to a 5.0 gen. is this true?
has anyone dynoed either a 5th for 5.5 gen max after advancing the timing?
has anyone dynoed either a 5th for 5.5 gen max after advancing the timing?
not that I know of - I think someone dynoed a 6th gen after doing it but don't recall what his results were.
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