More HP: Anyone install a JB4?

[Turbo2Pete]

Piggyback controllers utilize a signal intercept method of manipulating the various inputs and the respective output from ECU to achieve their target effect (more boost for example). In order to make an effective change, the signal input(s) to the ECU are “spoofed” or manipulated/clamped to effectively bypass the default limiters and target tables referenced. This leaves the piggyback controller free to control the output.

Where a flash tune, such as ours, is able to natively control the boost for example. While working in conjunction with the factory limiters. No need to manipulate/alter/clamp various signals.

When you have to spoof the input signals to the ECU to reach your targets, you’re effectively eliminating and bypassing the built in pre-programmed safeties designed to protect your engine.

Things like Oil Temperature limiters, Engine Coolant Temperature limiters, Air Intake Temp sensor limiters, Knock Limiters, etc., are all rendered useless when the ECU is unable to accurately sample what is happening inside the engine.

We work with and retain these factory safeguards in a way the external piggy-back controllers cannot.

I know I'm a bit late to the discussion - but you're either misinformed on the JB4, or are misinforming..... I get it, you want your product to look better - and it might be.

BUT - many of us with BMW's have a JB4 installed FOR it's safety measures - on top of a flash. It's there to prevent all the damaging problems you mention...
AND - in the BMW Tuner world, the Cobb is considered junk... Personally I have used one, it was OK for me, but JB4 and a backend flash are MUCH better. gives us guage control so we can monitor things like oil pressure, boost, etc. that aren't normally displayed.

Please, don't badmouth someone else's product just to bump yours. (unless you can document it) As someone else said "not a good look".

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[redlimitediforcemax]

I know I'm a bit late to the discussion - but you're either misinformed on the JB4, or are misinforming..... I get it, you want your product to look better - and it might be.

BUT - many of us with BMW's have a JB4 installed FOR it's safety measures - on top of a flash. It's there to prevent all the damaging problems you mention...
AND - in the BMW Tuner world, the Cobb is considered junk... Personally I have used one, it was OK for me, but JB4 and a backend flash are MUCH better. gives us guage control so we can monitor things like oil pressure, boost, etc. that aren't normally displayed.

Please, don't badmouth someone else's product just to bump yours. (unless you can document it) As someone else said "not a good look".

Respectfully disagree with your assessment about the JB4 vs a cobb tuner. But thats okay too it you like it. I prefer simplicity and reliability. Less parts to go wrong especially when you're adding power through boost. I'd rather the cpu not be fooled into increasing boost and fuel.

 

[Turbo2Pete]

Respectfully disagree with your assessment about the JB4 vs a cobb tuner. But thats okay too it you like it. I prefer simplicity and reliability. Less parts to go wrong especially when you're adding power through boost. I'd rather the cpu not be fooled into increasing boost and fuel.

Again, I used a Cobb for a while, had nothing bad to say about it - and again, I'm using the JB4 for its safety features - everything else is controlled by a backend flash.
We're also making significantly more power than the Tacomas - 600+ WHP.

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