Tuning issues? NW 102 TB, FAST 102, fully built 416xi LS3
03-23-2016, 10:09 AM
#44
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My only issue with doing this myself is I'm having trouble locating some of these tables, lol...
Last edited by Nintastio; 03-23-2016 at 10:15 AM.
03-23-2016, 02:09 PM
#48
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They may be a challenge to get working due to being larger than what the ECU can understand, but with scaling settings they should work.
03-23-2016, 07:49 PM
#50
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I'm not a professional tuner, but if you ask me that is a LOT of timing in idle areas that NAF suggested. That's over 15+ degrees past stock in some areas. If you ask me his values need to be dialed back ALOT. The computer will need more wiggle room to advance and retard timing based on other variables and multiplier tables.
It sounds like your describing idle hunting / surging. Before you have a bunch of stuff changed and create more problems, i would highly suggest playing with idle > min airflow table. Increase the entire table by 5% until your idle starts to stabilize, hang, and slow to come down. At that rate you can dial the values down a bit. This is a table which absoluetly has to be adjusted with cam, TB, and fast manifolds. Ask me how i know...
It sounds like your describing idle hunting / surging. Before you have a bunch of stuff changed and create more problems, i would highly suggest playing with idle > min airflow table. Increase the entire table by 5% until your idle starts to stabilize, hang, and slow to come down. At that rate you can dial the values down a bit. This is a table which absoluetly has to be adjusted with cam, TB, and fast manifolds. Ask me how i know...
Last edited by itsdaveonline; 03-23-2016 at 07:57 PM.
03-23-2016, 09:51 PM
#51
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I have a NW102 on my 416 stroker 99C5, maunual. I don't know if it's the tune or the throttle body but the car struggles severely to idle. Stalls are frequent when stopping at a redlight or when taking my time down shifting. I'm open to try a different tuner to eliminate that possibility if anyone knows of one with lots of experience with the NW102 near South Carolina upstate, Atlanta GA, or Charlotte NC.
Last edited by jlturpi; 03-23-2016 at 10:02 PM.
03-23-2016, 10:25 PM
#52
Originally Posted by itsdaveonline
I'm not a professional tuner, but if you ask me that is a LOT of timing in idle areas that NAF suggested. That's over 15+ degrees past stock in some areas. If you ask me his values need to be dialed back ALOT. The computer will need more wiggle room to advance and retard timing based on other variables and multiplier tables.
It sounds like your describing idle hunting / surging. Before you have a bunch of stuff changed and create more problems, i would highly suggest playing with idle > min airflow table. Increase the entire table by 5% until your idle starts to stabilize, hang, and slow to come down. At that rate you can dial the values down a bit. This is a table which absoluetly has to be adjusted with cam, TB, and fast manifolds. Ask me how i know...
It sounds like your describing idle hunting / surging. Before you have a bunch of stuff changed and create more problems, i would highly suggest playing with idle > min airflow table. Increase the entire table by 5% until your idle starts to stabilize, hang, and slow to come down. At that rate you can dial the values down a bit. This is a table which absoluetly has to be adjusted with cam, TB, and fast manifolds. Ask me how i know...
Most large cams like timin between 18-22 degrees, he is welcomed to dial it back but he has to fix everythin else first. And plz dont run on the maf till above 3000rpm...
The IAC reset part position will make the largest difference. After i had my car tuned by one of the pros here, i still couldnt get a decent idle out of my car, so i started to increase this and believe me it made the biggest difference.
BUT, the rest of your tune has to be correct for you to take advantage of this...
Last edited by Naf; 03-24-2016 at 12:25 AM.
03-23-2016, 10:25 PM
#53
Originally Posted by jlturpi
I have a NW102 on my 416 stroker 99C5, maunual. I don't know if it's the tune or the throttle body but the car struggles severely to idle. Stalls are frequent when stopping at a redlight or when taking my time down shifting. I'm open to try a different tuner to eliminate that possibility if anyone knows of one with lots of experience with the NW102 near South Carolina upstate, Atlanta GA, or Charlotte NC.
03-24-2016, 03:20 AM
#54
For those who like to tinker, here is a good read i found online, its for the e38 and e67, but the idea is still the same...
http://www.masterenginetuner.com/ls-big-cam-idle.html
http://www.masterenginetuner.com/ls-big-cam-idle.html
03-24-2016, 04:35 PM
#55
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For those who like to tinker, here is a good read i found online, its for the e38 and e67, but the idea is still the same...
http://www.masterenginetuner.com/ls-big-cam-idle.html
http://www.masterenginetuner.com/ls-big-cam-idle.html
I was going to purchase my own HP tuners setup today, found a used one online for a really good deal. As I was trying to figure out the whole credit thing and if it came with any some one else bought it
03-28-2016, 09:44 AM
#58
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Well, I'm not sure how closely he followed your changes but we did manage to get the car much closer to good. I have not been able to get the car to stumble but now the rolling idle is around 1400RPM, and settles down to around 900 as soon as I hit 0MPH. He wants me to drive it around this week and let him know if there are any negative effects from the changes we made over the weekend. I have only driven the car about 15 miles but am pretty happy with the outcome so far. There is still slight lunging when lightly accelerating under 2k RPM but much less noticeable and rarely occurs now.
Once I get some money together I am going to pickup my own HP tuner so I can make slight changes myself and also monitor exactly what is going on when needed.
Once I get some money together I am going to pickup my own HP tuner so I can make slight changes myself and also monitor exactly what is going on when needed.
03-28-2016, 10:05 AM
#59
Originally Posted by Nintastio
Well, I'm not sure how closely he followed your changes but we did manage to get the car much closer to good. I have not been able to get the car to stumble but now the rolling idle is around 1400RPM, and settles down to around 900 as soon as I hit 0MPH. He wants me to drive it around this week and let him know if there are any negative effects from the changes we made over the weekend. I have only driven the car about 15 miles but am pretty happy with the outcome so far. There is still slight lunging when lightly accelerating under 2k RPM but much less noticeable and rarely occurs now.
Once I get some money together I am going to pickup my own HP tuner so I can make slight changes myself and also monitor exactly what is going on when needed.
Once I get some money together I am going to pickup my own HP tuner so I can make slight changes myself and also monitor exactly what is going on when needed.
