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QG18 1.8L Engine Engine Discussion: 2000+ Sentra XE, GXE, & 1.8


       
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Old Dec 20th, 2002, 12:51 PM   #1 (permalink)
Brooklyn-B15
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Free Horsepower?

IS THERE ANY WAY TO ADJUST THE TIMING ON A 1.8? IF SO PLEASE POST. ANYTHING FOR FREE IS WORTH A SHOT. ALSO IS THERE ANYTHING ELSE THAT I CAN DO FOR ALMOST NOTHING IF NOT VERY CHEAP? THANKS AHEAD OF TIME
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Old Dec 20th, 2002, 01:34 PM   #2 (permalink)
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Easy on the caps my friend are you mad. LOL. Yes there is a way to bump your timming but..........and this sucks.....its not easy. I dont know all the details but to bump the timming you would have to got to a dealership that is willing to hook you up to the Consult II and do it that way, it is the ONLY way. We dont have the older style "distributor",and someone else should be able to give you the mechanical background on it...hope that helps. About freeing up some free HP we are somewhat at a loss there unless there is something no one has told me about. Which is a possibility.

P

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Old Dec 20th, 2002, 06:54 PM   #3 (permalink)
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sorry man.

no such thing as "free" horsepower. Figure......1hp for every $100..........

and the timing doesn't have to do with a carbureator pdid
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Old Dec 20th, 2002, 07:41 PM   #4 (permalink)
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From this months Nissan Performance Magazine


Q: How do I advance the timing of my QR25?


Sarah: The QR25 and QG18 have direct ignition systems instead of a distributor. Distributorless ignitions use a coil for each spark plug which improves efficiency and emissions and increases power by controlling the timing of the spark. Unlike distributor ignitions where timing can be advanced or retarded by disconnecting the TPS and adjusting the distributor, the only way to advance the timing of a direct ignition system is through the Nissan diagnostic Consult II device, which communicates directly with the ECU.
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Old Dec 20th, 2002, 08:36 PM   #5 (permalink)
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forgive me chimmike the correct term is distributor, thanks for your observation.
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Old Dec 21st, 2002, 12:58 AM   #6 (permalink)
Brooklyn-B15
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Hey guys sorry for ths caps. I did not mean to yell......hehe So in other words without putting money into the car for now i cant do a thing?
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Old Dec 21st, 2002, 09:43 AM   #7 (permalink)
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nope. No such thing as free hp. That's why there are so many slow modded hondas around, lol
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Old Dec 31st, 2002, 07:39 PM   #8 (permalink)
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I just got my timing advanced +3' at Mossy Nissan. It feels like it has more pull in the lower rpm range. thumbs up.
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Old Jan 7th, 2003, 12:50 AM   #9 (permalink)
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so ur saying to take the car to a nissan dealer to get it done.. i'm sure with some directions i can do it. i have a 1996 and i still have the normal distributor.. i want to advance my timing..
once advanced i need to run 91 octane ?.. pleasze help
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Old Jan 7th, 2003, 01:39 PM   #10 (permalink)
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Quote:
Originally posted by DOPE200sxSE
so ur saying to take the car to a nissan dealer to get it done.. i'm sure with some directions i can do it. i have a 1996 and i still have the normal distributor.. i want to advance my timing..
once advanced i need to run 91 octane ?.. pleasze help
With the new ODB II engines you need to have a computer adjust the timing. With the normal distributor you should be able to just fine, but I don't even know what engine ur running.

for the SR20, check out:
http://www.b15sentra.net/modules.php...at&id_cat=3#22
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Old Jan 7th, 2003, 02:41 PM   #11 (permalink)
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Quote:
Originally posted by DOPE200sxSE
so ur saying to take the car to a nissan dealer to get it done.. i'm sure with some directions i can do it. i have a 1996 and i still have the normal distributor.. i want to advance my timing..
once advanced i need to run 91 octane ?.. pleasze help

you are in the wrong forum my friend. look again. this is for 2000-2002 sentras.............
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Old Jan 8th, 2003, 12:15 AM   #12 (permalink)
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how about adjusting the throttle cable? theres a article on how to do it on b14s on www.nissan-200sx.org for theb14s. im assuming its the same for the b15s, but i mayeb wrong
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Old Jan 8th, 2003, 12:45 AM   #13 (permalink)
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yes you can adjust the throttle cable. however it doesn't give you any extra horsepower. it just makes it easier to rev the engine. On my car, the throttle cable was already very tight.
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Old Jan 17th, 2003, 10:44 PM   #14 (permalink)
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power/weight ratio. make the car weigh less if u can.
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Old Apr 7th, 2003, 09:10 AM   #15 (permalink)
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OK, but doesn't anyone make a device that can be hooked up instead of the Consult II to be able to accomplish the same thing?

Quote:
Originally posted by myoung
From this months Nissan Performance Magazine


Q: How do I advance the timing of my QR25?


Sarah: The QR25 and QG18 have direct ignition systems instead of a distributor. Distributorless ignitions use a coil for each spark plug which improves efficiency and emissions and increases power by controlling the timing of the spark. Unlike distributor ignitions where timing can be advanced or retarded by disconnecting the TPS and adjusting the distributor, the only way to advance the timing of a direct ignition system is through the Nissan diagnostic Consult II device, which communicates directly with the ECU.
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