G Tuning 2020
Tuning
For those of us iwith any interest in tuning your G, we are thinking of a Tuning Workshop and Meetup. See the Calendar entry for the 12th September and reply with your interest to attend.
As a test, I put my G350 Bluetec in at the following:
Venue: Dyntotech RS, Faringdon, Oxfordshire. On the A420 from Oxford to Swindon. This venue has space/parking for a dozen Gs or so and is a central location to hopefully attract more than just the south/london.
Dynotech specialise in Tuning and Performance for all marques. If your G has any engine management (e.g. fuel injection) or ECU and sensors, then they can tune it. With a 4x4 rolling road (DynoMax). These guys know their stuff, have STAR if they need it and tune MB engines all the time.
http://www.dynotechrs.co.uk/en/articles/info3/about/
MORE:
Telis and Nickos run the business and has extended a discount for GWOA Members for the base tuning service, and any subsequent hourly work:
Pre-tune Dyno run. Custom tuning, to optimise economy, performance, responsiveness, etc, within the tolerances of your G engine. Dyno Run comparison.
Other ECU tuning companies are available. Many will be off the shelf maps (about £300), or maybe the addition of tuning boxes £100-£1000). Some will be cheaper, some will be more expensive. This is about sharing experience and access to expertise.
For a 1 (or 2) night camping in the area, right under the White Horse of Uffington, is farm campsite with facilities and some glamping (first come). Suggest those coming might want to stay over at least the Saturday night.
I don't know the owner, but wondering if he has a few fields we can drive around on Sunday, or look for a Green Lane in the area.
http://www.britchcombefarm.co.uk/bookings
A good date looks like Saturday 12th September ?
I would be very interested in attending.
Thank you.
OK, so I changed this post to be a summary of my tuning experience at this specialist. See the Calendar Post for the potential Tuning meetup in September.
Background:
I wanted the usual boost in HP and a matching boost in mpg.
I thought my G350 Bluetec was a stock 211HP model (the common OM642 V6 engine), but on the rolling road it was showing it was more like the 252HP model. Until I can locate the engine serial number, I can't be sure. The serial number will tell me what crank etc this OM642 has. Its so tight in the engine bay, I think I need to look from underneath.
Firstly - if I had gone for one of those cheaper £300 off the shelf tunes, I am not sure the garages that do it would have managed, since the version of COMAND I had installed was quite recent and the ECU was locked and blocked from updating via the OBD port. Dynotech RS had to obtain the unlock and create the map to the ECU once that was done. You have to be a bit careful because you don't want to brick the ECU !
I was also having the beginnings of issues with the Bluetec NOX sensors. And whilst I like the idea of AdBlue, it keeps throwing up the CEL and needing to be reset. So we took the opportunity to fill the AdBlue and disable its function (for now). No more CEL, but its all still there.
Second, Dynotec have a 4x4 rolling road, so for a 463 4x4 you get the full testing of HP and torque.
The result of the tune was a much steeper rise in HP, to a sweet spot at lower rpm and then a rise to the peak at 3,750 RPM (instead of 4,250). The estimated HP was 308HP which makes it like a G400 and 700NM from 549NM. That's huge.
I say estimated because on the rolling road, as the 7 speed gear box changes up, it gets to 6/7 gear and kicks down (increasing the revs but not showing the HP/Torque in 6th/7th). But if you follow the curve from the pre-tune, you get to 308HP and it certainly feels it. Still trying to get my head around that explanation.
From a driving perspective, it means a smoother and more rapid pickup out of corners and plenty of HP for acceleration. I have so far not got bored with this to see how much mpg I can improve to - probably only to about 26+
So far, early days, but very happy with the service and skills there.
See the vid and the pic.
Video:
/sites/default/files/images/G350%20308HP%20Tuned.MP4
Any feedback from others on tuning G's (be it injector timing tweaks, or full Level 3 turbo and exhaust type upgrades) - let us know. Good or not so good.
Love the LIVE test dude !
Bloody hell 308 BHP ??
The standard G400cdi has only got 250 BHP, was it quite expensive to get this treatment done for the G350 ?
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