On 02/05/2022 at 18:23, Esseesse200 said:

but I would say less risk with a proper map than a box because map is still keeping things within tolerance.. the box AFAIK fools things and doesn’t map every parameter that a map will. Therefore more chance of a component failure. (Also still traceable if manufacturer wants to find it)

 

I'll preface this by saying its software (box or map) and you need to trust the software developer if you're going to use it. That means a good reputation, long time in the market, large user base and probably don't be the first to use a new revision.

 

Something like a JB4 works by sitting in between the ECU and sensor. Its allowing the user to manage boost pressure and fueling only. The ECU is in control so its using factory parameters. The JB4 doesn't send out of bounds information to the ECU, rather it sends altered information to the ECU. For example if the boost limit it 28lbs and you want 5lbs more than standard (Map 3) the JB4 tells the ECU that the boost is less than 28 lbs so it keeps boosting until the JB4 sees 33lbs at the sensor. Because of that the JB4 uses the factory safety systems. If it detects knock from the factory system, for example, it drops into a pass through mode and allows the ECU to have total control without alteration by the JB4. I'm sure you could go full retard but it is some what idiot proof. But like most software you need to understand how to use it to get the most out of it.

 

No, its not traceable. That's just what map sellers say to push people towards buying a map. The ECU only ever sees factory levels or below. That's how it works. Only the JB4 sees the data from the sensor so it can't be recorded by the ECU. 

 

That said the JB4 is for "stage 1" maybe "2". Its for a TIP and light upgrades. Why would you pay extra for a map at that level when it doesn't have the versatility of the JB4, affects your warranty and it doesn't out perform the JB4? And when your ready to go to stage 3 tune you can uninstall the JB4 and sell it on ebay and get most of your money back. Its a performance and financial no brainer.

 

Below is a group of dudes taking their cars to a group dyno session as dudes do. Maybe on a different day you get different results but the JB4 is at least comparable.

 

Burger Motorsports JB4 Performance Tune VW / Audi / Skoda – AutoInstruct

   

 

 

If your going more than stage 1 and a bit then you can't use a JB4. So changing the turbos or changing the exhaust for a fully sic downpipe with a marginal cat (or no cat) in the wrong position isn't going to work with a JB4. For that you need a "map" so you can go outside the factory parameters without the ECU complaining.

 

Personally I'm skeptical of the whole tuning scene. If I go to an accountant, a doctor, a mechanic I pay them their rate and they use their expertise to do the best for me. Thats not the case with "tuners", they are  basically retailers trying to sell as much brand X as possible. The marketing is full of vague claims and light on any testable data on purpose. 

 

My favorite claim from APR for their intercooler is "Designed by engineers with lasers".  Impressive. Do they mean... like in Star Wars? Pew  Pew.

 

I'll probably get a tune at some point.

 

 

 

What version of the 2.0T is it?  I had the 220bhp version and ran a Racechip tuning box in it for a while in my superb.  I had it rolling roaded at 296bhp and 349 lb/ft .. it went well although lots of wheelspin in 1st and 2nd, but pulled really well through 3rd and 4th.  It would happily sit with Golf R's and 300bhp Jag's.. 

 

handy pulled in and out for services etc..