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Old 10-28-2013, 07:42 PM   #1
golfitup
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Jackson Supercharger help please!

Looking at an 02 SVT 2-door with a Jackson racing supercharger.

Owner says it's having some vacuum issues. He showed me the black box which I guess is the boost controller? He said it is malfunctioning and had it disconnected. The intake is sucking really hard and it is not idleing very consistent.

Any ideas as to what is wrong? Replace the black box? If so what is it?

Thanks.
- Duane


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Old 10-28-2013, 07:53 PM   #2
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I wouldnt replace the black box I would do a full custom tune and your looking at about 929.00 for the xcal3 flasher and full custom tune with free tune updates

The black box doesnt do anything with the idle tho , that could be an engine issue or a vac leak its hard to say

Before I bought it unless it is VERY cheap I would do a compression test and check it over good , if you know some one with a xcal3 I would barrow it and I can help you do a datalog and look it over

The black box once you hit "X" it grounds the injectors wide open and floods the engine with all the fuel the injectors can add , it was a very poor system to say the least

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Old 10-28-2013, 08:00 PM   #3
golfitup
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Tom,

I have an xcal 3. The guy said it had been "tuned" apparently by a place called fast lane motorsports. The car is in greensboro nc. It has 52k miles on it.

I am very interested, just concerned with how it is running. He said it is getting really bad gas mileage the way it is now. He had the vacuum line disconnected from the black box. When he hooked it back up it wa pulling on the intake very hard, like a loud sucking sound. Any more ideas or suggestions?
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Old 10-28-2013, 08:14 PM   #4
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This is what the car looks like.
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Old 10-28-2013, 08:29 PM   #5
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Thats a nice looking car

Tom
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Old 10-29-2013, 06:28 PM   #6
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that is a sweet ride.
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Old 10-30-2013, 04:28 PM   #7
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I ran the black box and boom I melted a piston and scored the block. Lesson learned do not run it with the black box. And if it is custom tuned do not run the black box.
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Old 10-30-2013, 10:28 PM   #8
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Quote:
Originally Posted by golfitup View Post
Tom,

I have an xcal 3. The guy said it had been "tuned" apparently by a place called fast lane motorsports. The car is in greensboro nc. It has 52k miles on it.

I am very interested, just concerned with how it is running. He said it is getting really bad gas mileage the way it is now. He had the vacuum line disconnected from the black box. When he hooked it back up it wa pulling on the intake very hard, like a loud sucking sound. Any more ideas or suggestions?
Moved to "General Forced Induction". By the black box, do you mean the one that had the pre-loaded tune from Jackson Racing? If that is the case, there are no vacuum lines connected to it. That is only an electronic connection. There seems to be more problems with the car than what is being said. By the way, that is a Kaminari body kit on that SVT.
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Old 10-31-2013, 01:42 PM   #9
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There is a vacuum line that is connect to the black box that comes from Jackson Racing. I just installed it recently before my melting of the piston lol.
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Old 10-31-2013, 06:08 PM   #10
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I have the ability to access the SVT calibration and have a friend who has 2 JRSC SVT Foci.
His blue car has the black JRSC box WITH a vacuum line attached.
His black car is straight stock MAF with no box electronics.
Both cars have the big boost kit and show comparable ~9 psi boost.

The blue car with the box shows loads just barely above 1.0
The black car shows loads up to 1.4-1.5 at the same speed / throttle.

In my estimation the black box scales the MAF output (I assume like a MAFIA) based on vacuum. I don't have access to the blue car (black box) calibration so I don't know what the MAF transfer function looks like, but I assume it is coordinated with the black box.
I wouldn't run without the box or you will not get the enrichment needed to keep from smoking a piston.
Also the cal with the black box is pretty unaccessable, so if you need additional tuning you would be out of luck...
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