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What exactly does JB + tune do?

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Old 10-18-2014, 01:47 PM
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C250 2012
What exactly does JB + tune do?

Can someone explain what exactly the JB+ tune do?

And what changing the dial does.

Does it increase turbo boost? More fuel? I couldnt find details on what exactly it is the tune does. And whether or not I'm hurting my engine by using it
Old 10-18-2014, 02:55 PM
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I would assume it acts as an intermediate boost controller. Most turbo setups would blow up their engine unless their boost pressure is properly limited. I see most of these turbo engine "piggyback" tunes acting as intermediate or replacement boost controllers, cranking up the allowable pressure the turbo outputs to increase power.
Not 100% on that though.
Old 10-19-2014, 12:20 AM
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mercedes c250, 08 vette blown with meth (680 rwhp)
it allows more timing in the lower rpms. no more boost
Old 10-19-2014, 12:30 AM
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Originally Posted by speedraider
it allows more timing in the lower rpms. no more boost
Actually it does increase the boost from ~16 (stock)to ~20 psi (according to Burger Motorsports).

Last edited by solo1420; 10-19-2014 at 12:33 AM.
Old 10-19-2014, 01:53 PM
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mercedes c250, 08 vette blown with meth (680 rwhp)
Originally Posted by solo1420
Actually it does increase the boost from ~16 (stock)to ~20 psi (according to Burger Motorsports).
nope, mine still had 16 with the burger tune. I used a torque app. If it had more boost it would make more hp in the top end and the tune doesn't make top end hp.

Last edited by speedraider; 10-19-2014 at 01:55 PM.
Old 10-25-2014, 02:03 PM
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C250 2012
Originally Posted by Carlos.33193
Can someone explain what exactly the JB+ tune do?

And what changing the dial does.

Does it increase turbo boost? More fuel? I couldnt find details on what exactly it is the tune does. And whether or not I'm hurting my engine by using it
bump

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