Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
SVTPerformance's Chain of Restaurants
Tuning À la carte
Need help tuning Idle, MAF X-fer etc
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Pro60modman" data-source="post: 15500695" data-attributes="member: 183885"><p>Tuning the Mustang is pretty easy. Setting it up for tuning can be difficult. You can tune the MAF transfer two ways. First you setup the Live Link logging software. Monitor RPM, TPS, Open Loop Flag, MAF counts, Spark final, Coolant Temp, ORANGE WIRE INPUT(rename it AFR), STFT and LTFT. Second you lock your car in open loop, lock timing at 10 or 15 degrees and change your entire base fuel table to 1.00 lambda up to the load point you see 2psi. Then you need to log the wideband into your SCT handheld using the 5v output of your wideband gauge linked to the orange input wire of an SCT 9608 analog cable(it fits the X4, trust me). Then you warm the bitch up fully and let it idle for 2 minutes while logging it. Since your already somewhat tuned you can skip to step 67 where you put it in 3rd and let it roll at idle speed. Start the log and progressively give it gas(try to hit each MAF count cell over 500 times) until you get to a lambda point that on the base fuel table that isn't 1. This not only tunes your closed loop fueling for the most part but also gets the switch area of the MAF from closed to open loop pretty well tuned so you don't have initial WOT AFR squiggleyness.</p><p></p><p>The 2nd way is less complicated but only works if your fueling is pretty close from the get go aka your car doesn't run like garbage. You disable LTFT and run STFT only. While some say you don't have to, just do it. Fords log LTFT inverse of any other car and you'll catch yourself messing up calculations when adjusting the MAF counts. SOOOO, you log STFT only and make adjustments. Lock your timing to 10 or 15 and set the base fuel table to 1 across the board(dont forget to save the original table). Log idle and a 3rd gear pull from idle to 2psi with EXTREMELY GRADUAL THROTTLE so you can get 500+ counts per cell on your LiveLink histogram. Make your adjustments to the MAF transfer function based on the percent of fuel added or subtracted by the STFT at each MAF count point.</p><p></p><p>After you have your fueling all setup you also need to setup your Failed MAF and predicted fueling stuff since your 99+. Along with tuning in the maps related to the ISC integrator to get that idle perfect and checking the dashpot decay times in relation. Then you can get to the fun stuff like ignition timing or setting ridiculous idle ignition parameters to make it chop like an old Vince Shlomi infommercial. </p><p></p><p>Now. All this said, there are tens of maps that need to be changed in order to lock the car in closed loop, lock timing, etc. Other things that need to be monitored on the log, histograms need to be setup and it's always a good thing to know how to check the history function of the SCT AdvIII software so you don't forgot to turn something back on.</p><p></p><p>I understand that this is a lot of ****ing shit to do and I just generalized it. Any tuner can tune for power on a Mustang that's the easy part. The hardest ****ing part of tuning these things is the low end and idle stuff in my experience. If you are going to try and tune it yourself PM me with any questions, if you say **** that and want someone else to tune it you can PM me about that too.</p></blockquote><p></p>
[QUOTE="Pro60modman, post: 15500695, member: 183885"] Tuning the Mustang is pretty easy. Setting it up for tuning can be difficult. You can tune the MAF transfer two ways. First you setup the Live Link logging software. Monitor RPM, TPS, Open Loop Flag, MAF counts, Spark final, Coolant Temp, ORANGE WIRE INPUT(rename it AFR), STFT and LTFT. Second you lock your car in open loop, lock timing at 10 or 15 degrees and change your entire base fuel table to 1.00 lambda up to the load point you see 2psi. Then you need to log the wideband into your SCT handheld using the 5v output of your wideband gauge linked to the orange input wire of an SCT 9608 analog cable(it fits the X4, trust me). Then you warm the bitch up fully and let it idle for 2 minutes while logging it. Since your already somewhat tuned you can skip to step 67 where you put it in 3rd and let it roll at idle speed. Start the log and progressively give it gas(try to hit each MAF count cell over 500 times) until you get to a lambda point that on the base fuel table that isn't 1. This not only tunes your closed loop fueling for the most part but also gets the switch area of the MAF from closed to open loop pretty well tuned so you don't have initial WOT AFR squiggleyness. The 2nd way is less complicated but only works if your fueling is pretty close from the get go aka your car doesn't run like garbage. You disable LTFT and run STFT only. While some say you don't have to, just do it. Fords log LTFT inverse of any other car and you'll catch yourself messing up calculations when adjusting the MAF counts. SOOOO, you log STFT only and make adjustments. Lock your timing to 10 or 15 and set the base fuel table to 1 across the board(dont forget to save the original table). Log idle and a 3rd gear pull from idle to 2psi with EXTREMELY GRADUAL THROTTLE so you can get 500+ counts per cell on your LiveLink histogram. Make your adjustments to the MAF transfer function based on the percent of fuel added or subtracted by the STFT at each MAF count point. After you have your fueling all setup you also need to setup your Failed MAF and predicted fueling stuff since your 99+. Along with tuning in the maps related to the ISC integrator to get that idle perfect and checking the dashpot decay times in relation. Then you can get to the fun stuff like ignition timing or setting ridiculous idle ignition parameters to make it chop like an old Vince Shlomi infommercial. Now. All this said, there are tens of maps that need to be changed in order to lock the car in closed loop, lock timing, etc. Other things that need to be monitored on the log, histograms need to be setup and it's always a good thing to know how to check the history function of the SCT AdvIII software so you don't forgot to turn something back on. I understand that this is a lot of ****ing shit to do and I just generalized it. Any tuner can tune for power on a Mustang that's the easy part. The hardest ****ing part of tuning these things is the low end and idle stuff in my experience. If you are going to try and tune it yourself PM me with any questions, if you say **** that and want someone else to tune it you can PM me about that too. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
SVTPerformance's Chain of Restaurants
Tuning À la carte
Need help tuning Idle, MAF X-fer etc
Top