PRC 250CC aftermarket castings/g6x3 cam 505rwhp/464rwtq
04-04-2012, 08:48 AM
#21
Even with that said the MAF still takes over at 4000 RPM's. With out looking at the tune and a WOT log its hard to say if the tune is to blame.
It does sound like your tune needs a little work. That cam should drive fairly decent for how big it is. My guess Base running airflow, and fueling is the issue
04-04-2012, 11:23 AM
#22
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Very few people actually tune the VVE on E38/67 computers. Low speed driveability and throttle response cleans up very nice once you do. I was running MAF only on my car for a while, and then I downloaded Bluecats tool and it worked like a dream.
Even with that said the MAF still takes over at 4000 RPM's. With out looking at the tune and a WOT log its hard to say if the tune is to blame.
Even with that said the MAF still takes over at 4000 RPM's. With out looking at the tune and a WOT log its hard to say if the tune is to blame.
If you leave the dynamic airflow stock it will be 4000 rpm's at which point the ecu uses filtered MAF airmass for calculations. This could be changed in his tune to be used at a different RPM.
04-09-2012, 02:30 PM
#26
http://www.hptuners.com/forum/showthread.php?t=26884
You can download bluecats tool in the first post in this link
Here’s how to tune the VE:
1. Put the car in open loop
2. Fail the MAF by setting the MAF Fail High to 0
3. Flash and reset fuel trims in case there are any residuals left over from the last time you were in closed loop
4. Start logging on a warmed up motor. I usually start with the lower RPM and MAP's to get the cruise areas out of the way, then work on WOT on a whole seperate log.
5. In your tune, go into Engine, Airflow, Dynamic Airflow and open the following tables:
a. Zone RPM Boundaries
b. Zone MAP Boundaries
6. Open Engine, Airflow, Speed Density and open the following tables:
a. Constant
b. MAP2
c. MAP
d. MAP.RPM
e. RPM2
f. RPM
7. Open the EQ VE program and click on “HPTuner Hooks” and click “Copy Equations from HPTuner”. Click OK to the confirmation dialog
8. Allow the program to copy the values out, don’t mess with any windows while it’s doing it’s thing. It’s done when it says, “Copy Data Complete”
9. Click on “Gen Table”, “OK”, “No” to populate the EQ VE program’s LS2 VE table
10. Make sure you have your histo open for the VE table AFR error.
11. In the VE Table screen of my program, enable edits, then click "Analysis Modify" then "Apply HP Scanner Data".
12. Let the program copy the data from your histo. After the copy is complete, a new window will open, select the action's (I.E. multiply, minimum counts and such) you want to do and click "Start".
13. A new window will appear again with a data grid of the data to apply, click "Apply to Table".
14. Back on the main screen, click “Gen Equation”, “OK”
15. Click on “HPTuner Hooks”, “Send Equations to HPTuner”, “OK”, wait for it to complete and click “OK”.
16. Save the tune file and flash it to the car. Start again with step 4 until AFR Error is within +-5%
If you need help setting up the histogram to log VE AFR Error let me know.
You can download bluecats tool in the first post in this link
Here’s how to tune the VE:
1. Put the car in open loop
2. Fail the MAF by setting the MAF Fail High to 0
3. Flash and reset fuel trims in case there are any residuals left over from the last time you were in closed loop
4. Start logging on a warmed up motor. I usually start with the lower RPM and MAP's to get the cruise areas out of the way, then work on WOT on a whole seperate log.
5. In your tune, go into Engine, Airflow, Dynamic Airflow and open the following tables:
a. Zone RPM Boundaries
b. Zone MAP Boundaries
6. Open Engine, Airflow, Speed Density and open the following tables:
a. Constant
b. MAP2
c. MAP
d. MAP.RPM
e. RPM2
f. RPM
7. Open the EQ VE program and click on “HPTuner Hooks” and click “Copy Equations from HPTuner”. Click OK to the confirmation dialog
8. Allow the program to copy the values out, don’t mess with any windows while it’s doing it’s thing. It’s done when it says, “Copy Data Complete”
9. Click on “Gen Table”, “OK”, “No” to populate the EQ VE program’s LS2 VE table
10. Make sure you have your histo open for the VE table AFR error.
11. In the VE Table screen of my program, enable edits, then click "Analysis Modify" then "Apply HP Scanner Data".
12. Let the program copy the data from your histo. After the copy is complete, a new window will open, select the action's (I.E. multiply, minimum counts and such) you want to do and click "Start".
13. A new window will appear again with a data grid of the data to apply, click "Apply to Table".
14. Back on the main screen, click “Gen Equation”, “OK”
15. Click on “HPTuner Hooks”, “Send Equations to HPTuner”, “OK”, wait for it to complete and click “OK”.
16. Save the tune file and flash it to the car. Start again with step 4 until AFR Error is within +-5%
If you need help setting up the histogram to log VE AFR Error let me know.
