2 degree TA
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The 2deg Timing Advance gives you more power under the curve so you will feel it dig some more when you juice it from the line. If you are already rolling, it won't feel too much different.
Are you sure they advanced it? Did they give you the printout showing OEM at 15 and now it being 17?
Are you sure they advanced it? Did they give you the printout showing OEM at 15 and now it being 17?
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1,560 Posts
Get the dealer on the horn just to CYA and make sure they did what you wanted to be done
I'd also mention that you don't notice a thing, maybe they should double check?
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well hold on there isn't a big difference. if you pay for it, you shouldn't. it is a very small and subtle change. if you were looking for some measurable increase in performance you won't find it. a lot of people feel a big difference and then, they also feel a major difference by installing a k&n air filter. butt dynos are VERY inaccurate. a timing advance is not worth paying for but if you have the chance to get it done free it isn't something i would pass up....
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i'm not looking to pay for it which is why i'm wondering if its something they would do for me for free while they change out my front impact sensor when i take it in soon. i've had no luck with finding anyone around me with a programmer that can do it
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267 Posts
that's up to the dealer/advisor/service manager/tech and you/your relationship/your communication with them/him/her.
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17,617 Posts
i did the 2* timing advance at uprev in austin for free. i didn't feel any performance difference but my truck instantly quick spark knocking at idle. to me that was worth it. also, using 93 octane will yield better results
A small timing advance without any other changes may not yield any results at all. Nissan and their ECU already optimize a-f ratio and timing. Depending on HOW they do the timing change the ECU may automatically RE-adjust back to stock.
If you have made ANY breathing mods (Cold Air Intake, CAI - Exhaust mods) then you might notice some difference together WITH the timing change. That is because better breathing means there is a small amount more charge to burn and bringing the burn on slightly sooner will make a little more power and possibly offset the gas mileage too.
Find someone who has a timing light and stick it on there to see what the timing is showing.
If you have made ANY breathing mods (Cold Air Intake, CAI - Exhaust mods) then you might notice some difference together WITH the timing change. That is because better breathing means there is a small amount more charge to burn and bringing the burn on slightly sooner will make a little more power and possibly offset the gas mileage too.
Find someone who has a timing light and stick it on there to see what the timing is showing.
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1,410 Posts
i'm fairly sure that the 2* adv bumps the entire timing curve up 2*, like changes the entire curve of what timing it give in any situation. i know people on the forum who have done this before say you get a print out from nissan when they do it showing the before and after timing. it wont really drastically change the power band in any one spot so you probably won't feel it. the gains would be small and fairly equal over the entire power band with the added effect of a slightly quicker response (more rev happy) its not going to be anything that a butt dyno will notice
I have posted on the DIY section about this same problem with getting the advance. My dealer wants $98 + tax to do it. I am in Tallahassee and haven't found anyone nearby to do this change. I am willing to pay but, not what the dealer wants. If you all know of anyone near here who is willing to do the change, please let me know. Thank, Mike
honestly, i did this and its not worth 50cents, no notable difference in performance.
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1,604 Posts
It did very little for my truck too. But I do think it varies a little from engine to engine. From what I have seen our base timing varies some from the factory-anywahere form 14-16 deg I've seen reports. So depending where your baseline is it might make it more noticeable, but on most trucks it's still not too much. However if you can do it for free like my dealer did, the slight gains are fine. Also if you can find any Uprev tuned guys in your area they can do the advance for you too.
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2,335 Posts
The 2 Degree Advance
Here is a link with lots of info. You can contact people here to do it for you too.
Here is a link with lots of info. You can contact people here to do it for you too.
Here is my opinion based on my experience with both building engines and on my own personal Nismo...
A small timing advance on a completely stock motor will not do very much if anything at all. In colder weather it will help a small amount on even a stock motor because there is a slightly more dense charge that can be combusted more readily.
However, if you do any breathing mods, like a new exhaust or a Cold Air Intake (CAI) it can make quite a bit of difference. The freer your motor breathes the more advance you may need for it to run smoothly. In other words if I get more charge into the combustion chamber and make it easier for that charge to leave the chamber during the exhaust cycle then the charge may need a slightly sooner "burn" to use the charge more effectively. And it should help a slight amount with idle, power, and mileage.
The one caveat here is that if you manage to advance the timing too much you can cause detonation. NOT GOOD! Even with the ignition knock sensors to retard the timing it is still hard on the motor and damaging to any performance gains.
One last consideration, the effects of timing advance and breathing mods is DEFINITELY dependent on temperature and weather conditions as well. When it is cooler out your motor can deal with more aggressive timing, during hot summer months, especially in the SouthWest like AZ, NM, TX, or Southern CA desert areas those 110+ temps can be damaging with aggressive timing setups.
Just my 2 cents.
~~~~~~~~~~~~~~~~~
I've noticed GREAT improvements in performance by doing all of the following:
CAI
Custom Exhaust
Change out Fluids to 100% synthetics
Remove WOT restriction
SuperChips 87 Performance tune
2 degrees timing advance
~~~~~~~~~~~~~~~~~
I noticed more performance gains from the WOT removal than the SuperChips tuning. However the timing advance and a slight RPM increase (+25 RPM) did improve my idle quite a bit and I do notice a power increase across the whole power band but all the other changes made a LOT more difference.
A small timing advance on a completely stock motor will not do very much if anything at all. In colder weather it will help a small amount on even a stock motor because there is a slightly more dense charge that can be combusted more readily.
However, if you do any breathing mods, like a new exhaust or a Cold Air Intake (CAI) it can make quite a bit of difference. The freer your motor breathes the more advance you may need for it to run smoothly. In other words if I get more charge into the combustion chamber and make it easier for that charge to leave the chamber during the exhaust cycle then the charge may need a slightly sooner "burn" to use the charge more effectively. And it should help a slight amount with idle, power, and mileage.
The one caveat here is that if you manage to advance the timing too much you can cause detonation. NOT GOOD! Even with the ignition knock sensors to retard the timing it is still hard on the motor and damaging to any performance gains.
One last consideration, the effects of timing advance and breathing mods is DEFINITELY dependent on temperature and weather conditions as well. When it is cooler out your motor can deal with more aggressive timing, during hot summer months, especially in the SouthWest like AZ, NM, TX, or Southern CA desert areas those 110+ temps can be damaging with aggressive timing setups.
Just my 2 cents.
~~~~~~~~~~~~~~~~~
I've noticed GREAT improvements in performance by doing all of the following:
CAI
Custom Exhaust
Change out Fluids to 100% synthetics
Remove WOT restriction
SuperChips 87 Performance tune
2 degrees timing advance
~~~~~~~~~~~~~~~~~
I noticed more performance gains from the WOT removal than the SuperChips tuning. However the timing advance and a slight RPM increase (+25 RPM) did improve my idle quite a bit and I do notice a power increase across the whole power band but all the other changes made a LOT more difference.
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