Removing rev/hp limiter on BMW 328i/528i

[pedro01]

I looked at Hartge - it's $1600 for their dongle... It takes the car to 290hp... To be honest, I don't want to push the engine that far...

I did order the Burger plug in tune...

Funny thing though - just dropped a friend off in Soi 50 and drove home up the tollway to where I live - almost in Swampy.

I usually drive in sport mode but of late I have taken to sport+ - having actually read the manual and learning it's not just sport without traction control....

On sport mode, it never goes above 220hp on the meter but today it nudged over 240hp...

I can hear the "told you so's already"

Anyway - plan is to still do a dyno b4 & after the burger tune. Whatever happens, I'm not interested in pushing the envelope too much!

Edited September 13, 2014 by pedro01

[Woodsie888]

I looked at Hartge - it's $1600 for their dongle... It takes the car to 290hp... To be honest, I don't want to push the engine that far...

I did order the Burger plug in tune...

Funny thing though - just dropped a friend off in Soi 50 and drove home up the tollway to where I live - almost in Swampy.

I usually drive in sport mode but of late I have taken to sport+ - having actually read the manual and learning it's not just sport without traction control....

On sport mode, it never goes above 220hp on the meter but today it nudged over 240hp...

I can hear the "told you so's already"

Anyway - plan is to still do a dyno b4 & after the burger tune. Whatever happens, I'm not interested in pushing the envelope too much!

Great stuff Pedro.

I'm pleased you read into some of my comments.

Hopefully other poster's will leave it at that and not feel the need to say too much.

I'm waiting for the before and after tesults with interest and hopefully nobody needs to dwell on the TH spec!

[mortenaa]

I looked at Hartge - it's $1600 for their dongle... It takes the car to 290hp... To be honest, I don't want to push the engine that far...

I did order the Burger plug in tune...

Funny thing though - just dropped a friend off in Soi 50 and drove home up the tollway to where I live - almost in Swampy.

I usually drive in sport mode but of late I have taken to sport+ - having actually read the manual and learning it's not just sport without traction control....

On sport mode, it never goes above 220hp on the meter but today it nudged over 240hp...

I can hear the "told you so's already"

Anyway - plan is to still do a dyno b4 & after the burger tune. Whatever happens, I'm not interested in pushing the envelope too much!

The Harthe conversion is not to be compared with the JB4. Hartge cooperate with BMW. It has factory-style plugs to connect to water temp sensor, fuel rail pressure, turbo wastegate valve, intake camshaft sensor and so on.

All of the factory safeguards remain in place, including overload protection, warm-up protocols, and the engine tuning is unchanged below 70% throttle to preserve all factory driveability and emissions certification.

The JB4 on the other hand is much simpler device, and just connects to one or to sensor to increase power. No safe guard there. The BMW forums are full of threads with problems related to the JB4 device.

Well, good luck with your JB4 anyway..

The Hartge Engine Conversion is significantly different to other, often cheaper systems. Our Hi-Tech system contains many "smart" technical features, and is the result of many months of design, testing and durability trials. The investment we have made during the development program has resulted in a full 3 year warranty on the hardware and software, plus an insurance backed engine and drive line warranty, covering any effect of the increased power output for a period of 12 months from installation date, but limited to 6,000 Euro.

HARTGE engine upgrade is TÜV approved.

The Hartge ECU is an external additional control unit. It is internally sealed and cannot be detected by BMW service procedure interrogations. It is also not possible that BMW software updates can disturb the performance of the Hartge ECU. Unlike engine management "chipping" and "flash" upgrades, it never gets overwritten during service enhancements by BMW.

The Hartge ECU is connected via a special wiring harness to the standard fuel injectors, throttle pedal, exhaust gas temperature transducer and power supplies. There is no connection to the turbocharger, and we do not generate any influence on the turbocharger boost pressure, which could increase the risk of damage to the engine.

Additional power is generated by increasing the fuel injector injection rate by a precisely calculated number of microseconds, this number depending on engine speed and throttle demand and other parameters. This additional fuelling makes use of the excess air delivered by the turbocharger, and consequently additional power is generated. The BMW ECU continues to monitor all other important engine parameters as standard.

One of the safety features of the Hartge system is that it does not generate additional power until the throttle demand is increased to more than 70%. Therefore the engine behaves as standard until the driver demands the maximum power. This ensures that the standard emissions controls remain intact for the standard emissions tests and drive cycle testing.

There is also overload protection, which prevents full power from being delivered for excessively long periods of time, for example when towing heavy loads, or driving for too long at V-max. The Hartge ECU also prevents overload of the transmission at lower than 1,500rpm, and overstressing

the engine at high power outputs above 4,000 rpm.

In extreme temperature conditions, the Hartge ECU also monitors the exhaust gas temperature, and if this exceeds the safe limit, the Hartge ECU reduces power accordingly back to standard BMW power.

All standard BMW engine protection and emissions systems remain in place and continue to function.

Edited September 14, 2014 by mortenaa

[Ezzer]

I read somewhere that the 240bhp is in there once you press the Sport+ mode.

Has anyone dyno'd the standard car yet?