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Go Back   Turbo Dodge Forums : Turbo Dodge Forum for Turbo Mopars, Shelbys, Dodge Daytona, Dodge SRT-4, Chrysler PT Cruiser, Omni and more! > Turbo Dodge Technical Chat > Engine Management, Fuel, Spark, EGTs, and Air/Fuel Ratios

Engine Management, Fuel, Spark, EGTs, and Air/Fuel Ratios This forum includes general electrical, modification, tuning, repair, replacement, identification and restoration of all components mentioned above including SMEC, SBEC, Logic Modules, aftermarket engine management, etc. Nitrous oxide posts go in here. This is the place

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Old 07-20-2012, 08:36 PM   #1
need some tuning help  
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I took the T_LM_22_MTX_A171_Stock file from ShelGames' site, did some tweaking to my liking and I am not able to get it to give the car enough fuel at part throttle while over 5 PSI. wide open throttle I have it set just right around 11.5 at full boost. and from 5 PSI up I have the part throttle table close to the WOT table but once I hit over 5 PSI it starts going leaner and leaner it has gone as lean as 14.1 on the WB but as soon as I floor it the A/F is down to 11.5 range. is there something I forgot to change in the Cal? I really don't want to start from scratch because I just got it where I like it besides the lean at part throttle.

my setup:
one piece with 52mm TB
FMIC
3" exhaust from swingvalve back
stock injectors (have it boosting to 15 PSI)
3bar map
and 87 LM from boostbutton
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Old 07-21-2012, 12:38 AM   #2
Re: need some tuning help  
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tryingbe is keeping the peace
Give it more fuel


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Old 07-21-2012, 06:02 AM   #3
Re: need some tuning help  
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I'm giving it just as much as the wide open throttle table at 5 psi and above but it doesn't do anything.
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Old 07-21-2012, 06:22 AM   #4
Re: need some tuning help  
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Old 07-21-2012, 07:30 AM   #5
Re: need some tuning help  
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There is no point going any more because it only gives fuel to the max of the wide open throttle table.
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Old 07-23-2012, 10:30 AM   #6
Re: need some tuning help  
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At part throttle, it will always stay in closed loop control and try to get to 14.7. There is a boost limit to closed loop, though. Look for "MAPLIM_NoCellUpdateAboveThisMAP" in the Fuel\O2_Feedback_Control\Adaptive_memory\ group. Stock, it's set to 1.2psi. Anything above that, it should go to open-loop and the fuel tables will set the A/F.
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Old 07-23-2012, 10:38 AM   #7
Re: need some tuning help  
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Originally Posted by Shel-Game View Post
At part throttle, it will always stay in closed loop control and try to get to 14.7. There is a boost limit to closed loop, though. Look for "MAPLIM_NoCellUpdateAboveThisMAP" in the Fuel\O2_Feedback_Control\Adaptive_memory\ group. Stock, it's set to 1.2psi. Anything above that, it should go to open-loop and the fuel tables will set the A/F.
Thanks I will look for that later today, it doesn't ping or anything when at part throttle and lean like that but I don't want to take any chances.
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