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Old 08-30-2005, 11:12 PM   #1
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JR Tune

how is the tune that JR does to your ecu when you purchase their kit? does it delete the speed limiter? will they tune for exhaust and intake or what?


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Old 08-31-2005, 01:58 AM   #2
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I didn't think it was a "tune" per say.
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Old 08-31-2005, 05:34 AM   #3
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If you buy the new setup from Ford racing with the Big Boost Kit the tune is perfect.
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Old 08-31-2005, 09:49 AM   #4
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i am buying the new setup with the big boost kit but from JR is that the same?
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Old 09-02-2005, 01:38 PM   #5
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I don't think it is... I thought the one with the tune was from Ford Racing Performance Parts... the one with the black box that everyone dogs on comes from JR.
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Old 09-02-2005, 02:05 PM   #6
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The JRSC BBK comes with an ECU tune. No blackbox required.
You have to send in your ECU to have it reflashed with the new tune.
2-3 day turn around. So, as you're installing the kit, hopefully you'll be done installing by the time your ECU comes back.

The standard JRSC with the blackbox isn't even a tune.
It just turns your injectors on 100% duty cycle when needed from what I've read.

Not sure about the speed limter removed or raised but the rev limiter should at tleast got to 7K since the dyno shows 175wHP at 7K.
You can call 586.468.1356 and ask.
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Old 09-02-2005, 03:45 PM   #7
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With the black box all it does is turn up the duty cycle, it does not move up rev limater or remove the govenor.
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Old 09-06-2005, 08:00 PM   #8
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on Jacksonracing.com it says the bbk comes with a reflash from ford racing
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