Just back from the dyno tuning
#11
04-09-2007 | 09:40 PM
Road Warrior
Joined: Jul 2006
Posts: 1,302
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From: SW Corner of NW Corner
RE: Just back from the dyno tuning
ORIGINAL: toprofile
So . . .
Actual Torque at the rear weal WITH the SE A/C and SERT map was 76.23?
13lbs less than the advertised stock numbers, without the SE A/C?
Are they taking the 'advertised' numbers from the same guy Jack got his beans from??
Yeesh
So . . .
Actual Torque at the rear weal WITH the SE A/C and SERT map was 76.23?
13lbs less than the advertised stock numbers, without the SE A/C?
Are they taking the 'advertised' numbers from the same guy Jack got his beans from??
Yeesh
Thats some pretty serious torque for a stock cam!
#12
04-09-2007 | 11:55 PM
Tourer
Joined: Oct 2006
Posts: 422
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From:
RE: Just back from the dyno tuning
Thanks for the update, The decell pop andblack soot on the pipeswerea fewthingsI noticed whenthe CBLs weremaxed out.
Guess I'm somewhere in between: Old Fashion in that I believe you need to give the motor what it wants. And New Fashion(?)because thehotter runningFuel Injectedmotorsburn cleaner and sure seem to last longer.....not sure heat is all that badwith the modern EFI motor.
Guess I'm somewhere in between: Old Fashion in that I believe you need to give the motor what it wants. And New Fashion(?)because thehotter runningFuel Injectedmotorsburn cleaner and sure seem to last longer.....not sure heat is all that badwith the modern EFI motor.
#13
04-10-2007 | 11:53 AM
Outstanding HDF Member
Joined: Apr 2006
Posts: 2,537
Likes: 21
RE: Just back from the dyno tuning
[/quote]
[IMG]local://upfiles/19017/39B18A4A13C24616902F5D4B0FB8354B.jpg[/IMG]
[/quote]
I am not here to disqualify, or shoot holes in this, but at WOT, if you take a look at the AF tables, you will see that the DESIRED AFR tables range from 11.5 to 12.8.....
Plus, there is only 1 cylinder showing tested.....
The motor is not tuned to the proper VOLUMETRIC EFFECIENCY......
I am sorry, but it takes about 1 hour to get just the INITIAL READINGS at ALL THROTTLE positions, through Step and Sweep configurations.....
And BOTH cylinders are tested at the same time, so the AF readings and adjustments are as precise as possible (Too many variables with variations of load, cylinder head temp, IAT and other atmospheric changes)....
Then the VE tables are adjusted to lean out (Decrement) or fatten up (Incriment) to Target AFR....
Then you go through the very same TP/RPM validation step/sweep runs to ensure that the proper VE changes were in effect accurate....
[IMG]local://upfiles/19017/39B18A4A13C24616902F5D4B0FB8354B.jpg[/IMG]
[/quote]
I am not here to disqualify, or shoot holes in this, but at WOT, if you take a look at the AF tables, you will see that the DESIRED AFR tables range from 11.5 to 12.8.....
Plus, there is only 1 cylinder showing tested.....
The motor is not tuned to the proper VOLUMETRIC EFFECIENCY......
I am sorry, but it takes about 1 hour to get just the INITIAL READINGS at ALL THROTTLE positions, through Step and Sweep configurations.....
And BOTH cylinders are tested at the same time, so the AF readings and adjustments are as precise as possible (Too many variables with variations of load, cylinder head temp, IAT and other atmospheric changes)....
Then the VE tables are adjusted to lean out (Decrement) or fatten up (Incriment) to Target AFR....
Then you go through the very same TP/RPM validation step/sweep runs to ensure that the proper VE changes were in effect accurate....
#14
04-10-2007 | 12:23 PM
Thread Starter
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Road Master
Joined: Oct 2006
Posts: 894
Likes: 1
From: Northport, AL
#15
04-10-2007 | 02:32 PM
Outstanding HDF Member
Joined: Apr 2006
Posts: 2,537
Likes: 21
RE: Just back from the dyno tuning
At the bottom of the chart, there is only 1 Data Channel (Air/Fuel).....
If there was 2, it would show on one side Air Fuel and WBC-AFR on the other.....
Dynojet uses a WIDE BAND Commander for the additional AF Channel....
Additionally, the AF Ratio that is showing on your chart is consistant, yet lean....
Granted, this is only a WOT run......
Be curious to see what the Throttle positions show....
If there was 2, it would show on one side Air Fuel and WBC-AFR on the other.....
Dynojet uses a WIDE BAND Commander for the additional AF Channel....
Additionally, the AF Ratio that is showing on your chart is consistant, yet lean....
Granted, this is only a WOT run......
Be curious to see what the Throttle positions show....
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