Not really. I've been doing some rather extensive reading on the history behind the electronic block - there is a lot of information on this forum and others going on for many many pages and I now have a fairly strong understanding of how this modification has been accomplished previously. It's no great secret from all the previously published information.explorer.dave wrote:Doesn't this answer your questions?
It is definitely noticeable. As Tony saidMadMQ wrote:instantly noticed the lack of turbo lag on take off.
so it's probably a combination of the EGR being shut and also not trying to suddenly accelerate through a computer controlled throttle plate.Quicker spool is obtained by dealing with the throttle body closing under EGR command
I don't think peak boost levels are the whole story of performance. Maybe having the electronic throttle plate in play artificially raises the reported boost figures? It's also possible the ECU may reduce the boost based on the temp1 sensor but I'd assume it would make boost based off the 2nd sensor post intercooler. I'd be good if someone (or chip tuning) would put an MQ on a dyno to see the boost under load and how it changes the torque curve before and after the modification.MadMQ wrote:the boost appeared to be a little down from the pre installed test (minimal)
The nitrogen dioxide component of NOx emissions is the primary oxidizer of the soot caught in the DPF at normal operating temperatures. This process is known as passive regeneration. Increasing EGR rates cause passive regeneration to be less effective at managing the PM loading in the DPF.
I'm not sure if I can get those readings easily from my Scanguage. Where did you purchase the Ultraguage from?Merts wrote:Exhaust Cat1 sensor readings on my Ultragauge whilst driving around town appear unchanged
I've noticed the same thing but I thought it was a trick of the mind. Possibly stock the throttle plate is normally close to closed at idle whereas now it has to cycle from 100% to 0%.Merts wrote:I reckon the engine takes a fraction of a second longer to shut down after the key is turned off.
I wasn't sure the autos would notice this as much as the manual. The manuals are a bit prone to stalling cold unless you blip the throttle a little. It doesn't have that snuffing feeling with the mod installed. I still think it feels a bit flat in the midrange.Merts wrote:The main thing I've noticed is the annoying turbo lag off idle is completely gone. It is an entirely different, and far more pleasant car to drive.
I think I'd be more concerned whether the car will do an active regeneration of the DPF if required rather than whether the exhaust temps are different. If the temp1 sensor reads low (cold) causing the EGR to be disabled, will the ECU still do a regeneration? You will generate less soot now than before so the passive regenerations may take care of what you need.ls2cruiser wrote:that is good for the poor old DPF .
I am not sure where chip tuning has had them made, nor seen one.
That's interesting. I assumed Chip Tuning and SPvi were connected or in a partnership due to previously selling his modules and SPVi reselling their tuning. You obviously have a direct contact with Tony and family so have an understanding we can't possibly have.borngeek wrote:Chip tuning module is NOT made by Tony of spvi.
Tony on Thu Oct 13, 2016 7:23 pm
SPVi have been through our own development on this model and we do have plug and play solution but due to our current work load, they have not been officially released.
Tony on Sun Oct 16, 2016 7:56 pm
re:Chip Tuning and EGR off tune:
They have released EGR off and DPF off ECU remap for MQ. (Can be organised through SPV Industries)
The plug and play version (EGR only) is sourced from SPV Industries, however not officially released yet but they do exist.
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