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Engine Management, Fuel, Spark, EGTs, and Air/Fuel Ratios This forum includes 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 04-05-2008, 05:54 PM   #1
new cal. boost controller?  
Boostaholic
 
Join Date: May 2007
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i just got a new cal fom FWD. Cindy said it may take anywhere up to 200 miles for it to really get used to the settings and stuff. well its only boosting to about 4 or 5 psi and doesnt seem to want to go any higher. my question is, would it be bad to put the boost controller on it and set it for 14-15psi? if i did that, wouldnt it just get used to it running that and adjust itself accordingly instead of trying to find where its boost is supposed to be?

as far as wiring goes, besides the air charge temp sensor, what else is needed to go from T1 to T2 status?

do i need a 3 bar for 15 psi?
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Old 04-05-2008, 06:46 PM   #2
Re: new cal. boost controller?  
Naturally Aspirated
 
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Sounds like your wastegate may be hooked directly to the manifold. Check to see if the actuator is working correctly and is not stuck open. While you could put a manual boost controller on your car, if everything is working correctly the cal should control the boost correctly.

-Dan-
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Old 04-05-2008, 07:12 PM   #3
Re: new cal. boost controller?  
Naturally Aspirated
 
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Many people with cals still use a MBC to control boost(line from intake to actuator with MBC in between).

You need to have the vac lines going to the solenoid to use the cals boost control.
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Old 04-05-2008, 11:42 PM   #4
Re: new cal. boost controller?  
Boostaholic
 
Join Date: May 2007
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i double checked the lines. everything is hooked up right. it was boosting about 7-9 with the old computer. now with the cal in, it wont get past 5.
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Old 04-06-2008, 10:46 AM   #5
Re: new cal. boost controller?  
Naturally Aspirated
 
Join Date: Oct 2005
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I would just run a new vac line for the wastegate and use a boost controller.
and by pass the stock boost selenoid
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Old 04-06-2008, 12:39 PM   #6
Re: new cal. boost controller?  
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Join Date: May 2007
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Induct: Turbo
1/4: 0.000

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so should i let the comp reset and hook up the MBC then let the computer learn again and this time, it'll be like telling the computer.. "listen.. this is how much boost you're gonna run. figure it out." ??
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