Twinz@Rennzport said:
Don't bother with a unichip....or piggyback on a 120d...there are great flash tunes available and undetectable by dealer diagnostics. I flashed my 120d the day it came off the showroom floor and it has been 4 years trouble free. Unfortunately, i do not have anyone in Joburg/centurion i can refer you to...and depending on the flash expect over 400Nm...dis lekker by die see.:thumbsup:
If you want to know how a common rail turbo diesel work and how to squeeze all the power from that turbo there are other things you can do to it, in addition to the flash but it is really unneccessary
The reason why I wanted to go for a unichip type system is for a couple of reasons... The main one is that I can change the fuel map, under different conditions. For example there are 5 settings, which include race and high altitude, which could be useful for my application. This could end up being a gimmick, but considering the huge increase in torque, it's possible that you could get varying levels of tune to allow for different conditions.
I suppose that is the main difference between piggy backing and just flashing... And if you wanted the performance back to standard, you could just reflash the settings back.
400Nm is huge, considering that's the theoretical torque output for the current M3!
In your opinion, what motor would constitute having a piggy back system?
XPower said:
Hi there, is there any particular reason you want to use a Unichip? I'm not knocking the piggy's, but the 120d has an ECU perfectly capable of running the car with added boost. Simple get someone to remap the car and you will have no issues. With piggy's you need to cut into the wiring harness and "fool" the ECU into doing what you want. Why?
Hey, it's more the fact that I can remove the system very easily if I want to. As well as allowing for different settings under different circumstances... So if I really want to give it a go, I can for a short amount of time. Without worrying about the Exhaust Gas Temperature getting too high. And have a less aggressive setting for around town.
Yeah, the unichip system does modify the inputs into the ecu. So it's not as pure as having the ecu doing exactly what you want. But I want to keep the ecu as original as possible. And the system can be fitted with connectors that plug into the ecu, so no cutting...
Although it looks like there's a dealer in joburg that stocks an ac schnitzer ecu that will give similar performance gains. Which will probably cost alot...
