THE SYNERGY 2 DIGITAL TUNING MODULE 

LEADING THE FIELD IN DIESEL TUNING TECHNOLOGY & STILL IN BIG DEMAND

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DESIGNED, DEVELOPED AND MANUFACTURED IN THE UK
FIRST WITH MULTICHANNEL PROCESSING^
updated 26-8-2010

  FOR YOUR ROVER 75 / ZT CDT/CDTi & FREELANDER TD4, & BMW with M47R COMMON RAIL ENGINE

This innovative plug and play module combines the following features into one low cost unit:

  1. ADJUSTABLE DIGITAL COMMON RAIL TUNING MODULE for up to 33bhp more

  2. A DIGITAL MAFAM MAF* COMPENSATOR for improved torque below 2500rpm

  3. BOSCH & PIERBURGH MAF COMPATIBILITY with air temp sensorsynergy 2

  4. SOCKET FOR OPTIONAL DASH SWITCH with normal, economy & off settings

  5. NEW INSURANCE FRIENDLY VERSION AVAILABLE. more

(* MAF = mass air flow sensor aka air mass meter)

INTRODUCTION

    This totally unique module is a multichannel development of the popular Synergy 1 (formerly called TU3)  common rail tuning module and maximises performance by combining my digital tuning technology and a digital version of the successful Mafam MF75p maf compensator in one compact housing, making it the only future proof tuning product for your diesel Rover 75, MG  ZT or Freelander TD4 as well as many BMW's with 5pin maf sensor. BMW page

    The tuning section is programmed with the five most commonly used settings, giving you a choice of throttle response (something analogue tuning boxes have no control over) with up to 33bhp more power on the 116ps engine and around 25bhp on the 131ps engine.

    In addition, by using a more advanced microcontroller,  the digital Mafam section connects to your maf sensor and remaps the maf signal in real time to cancel out drift and deterioration. With 2 settings, one for use with the Bosch maf and one for the Pierburgh or very poor Bosch one, you can extend the life of the expensive Bosch one and then fit the much cheaper Pierburgh one (actually an OEM Mercedes part).

    Even if your maf sensor is okay, after as little as 30k miles, it can suffer signal degradation. This has a large impact on the performance below 2500rpm. You can read more about this on my 75maf page here. The phenomenon affects many makes of diesels and the only cure was until now, an expensive new Bosch maf sensor.

    The result is superb low down torque and throttle response from just over 1000rpm, smooth build up of torque with the turbo coming in from 1500rpm, excellent midrange thrust for easier, safer overtaking and a readiness to rev beyond 4000rpm .

OTHER FEATURES

Separate switches are fitted to bypass each section so if your maf sensor is okay for the moment, you can leave the mafam section switched out and simply use the module as a Synergy 1 tuning box. In fact you needn't connect the mafam section at all until you need to, though its worth trying!

The SYNERGY 2 TUNING MODULE  is the complete solution for performance enhancement of your  Rover 75, MG ZT, Freelander TD4 & BMW diesel at under half the price of most basic tuning boxes.

* available from my online shop for £71.75 [A Bosch one costs over £220 or £250+ if dealer fitted. If its less, it won't be a genuine Bosch one]

^The big European manufacturers were upto 4 years behind us in developing multichannel signal processing. 

 FEEDBACK   Owners comments on the 75 and ZT club forum click here

Hi Ron
 Now that I have had the Synergy for a few weeks, I thought I would let you know how I am getting on.
 I am using position 2 with the maf section switched off and the system works very well, unfortunately I have had a couple of weeks where my journey has been broken by bad roadwork's etc so I cannot be sure of the like for like fuel consumption, but on the whole it seem broadly similar to standard.
Performance is very good with improvement across the rev range and delivery that feels very factory, an impressive achievement.Tick over is JUST a little more uneven.
 If I could make one very minor change it would be that for AUTO's the first 4 or 5% of the throttle sensitivity be softened just a little to stop the box hunting for gears when you say, get to a roundabout think you need to stop , come off the gas but then see a gap so you apply a small amount just as the box thinks about changing down. Having said that its not much of an issue, you just need to be a bit more sensitive with the boot.
 All In all, defiantly the best and most accomplished way to improve performance that I have ever used, sure beats stripping the top of a small block for cams manifolds and then trying to  get the jetting and timing curves right.
 If you want any recommendations pls ask

Hi Ron, just fitted synergy to my 116hp Rover 75 Tourer, in a word stunning, I can't believe the difference. I have got the box set on no5 at the moment and the pull from low revs is amazing, it had nothing below 2000rpm before. It is without shadow of  a doubt the best £195:00 I have ever spent on a car. I have just bought the Rover to replace my Volvo V70 and was so disappointed with the performance I thought of reselling it. Now it's brilliant, many thanks,   Simon 

Hi, Ron! Just thought I'd give you an update...
I have the tuning box turned on as well as the MAF compensator, and I'm just flitting between '1' and '2', to see what best suits. '5' leaves me with a little black smoke when I floor it (especially when cold), '1' and '2' don't, and the diving feel is similar.
 
What a transformation!
 
The throttle ACTUALLY responds like throttles should do! She hits turbo revs VERY quickly, and then she simply flies!
 
The 'pull' in 3rd gear (auto box) at even a moderate throttle position is truly staggering - it's actually a bit of a challenge to keep her below 30 and 40 from a standing start!
 
Coming off a bend and putting my foot down now leaves everything receeding in my mirrors (VERY satisfying!), and a quick squirt when jigging between lanes in traffic provides terrific response, and makes life much easier.
 
Putting the accelerator down while turning left or right into side roads, she actually drives round the bend properly, where previously I was well round the turn before the engine picked up.
 
And as for negotiating roundabouts...well! It's just like being back in my old VW Golf - see a gap, go for it, make it comfortably.
No more of this heart-stopping 'see a gap, go for it, nothing happens, scream, swear, hit the brakes!'.  It's a completely transfomed driving experience, and it has made me SO happy with my Solihull product!
 
I still haven't put the box into 'sport' mode yet, but I can only imagine driving from here to Manchester via the A-roads will leave me with a silly grin on my face for 80 miles...Can't wait!

Freelander TD4 (2004)

          It’s been a week now that I have had the Synergy 2 fitted, the performance difference is remarkable, I found on setting 10 the performance was outstanding and didn’t see any black smoke. 

I have set it back to setting 2 and found the MPG is about 43 MPG this also included some showing off to friends, the overall performance is better, smoother pulling away and top gear throttle response is great.

  I have found I don’t need the Mafam turned on yet since I see no benefit. I will try it in the months to come since the MAF sensor will go off.  Thanks again for the free fitting and service.

A top quality product.

Thanks to all for permission to include your feedback. RON

BRIEF SPECS 

1. TUNING SECTION:  MORE ON THE SYNERGY 1 PAGE HERE

2. DIGITAL MAFAM SECTION MORE ON THE MF75 MAFAM PAGE HERE

3. OPTIONAL DASH SWITCH

NO OTHER COMMON RAIL TUNING MODULE GIVES YOU ALL THESE FEATURES AT ANY PRICE 

DESIGN AIMS & RECOMMENDATIONS.   

The Synergy 2 connects to both the Maf sensor and fuel pressure sensor in the same way as the Synergy 1 and MF75p but all signal processing is done in the digital domain. Its multichannel processing means that replaces separate Synergy 1 and Mafam.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Theses charts from 2005 show the BHP and Torque of my 75CDT in standard form (yellow line) and with Synergy module fitted.

The Synergy 2 is shown with just the mafam section (Dark blue line) and with the Tu3 section switched on as well. (Setting 6) Purple line.

You can clearly see the effect of the mafam section on low down torque - the turbo comes in from 1600rpm and the torque is boosted significantly between 1600 and 2250rpm. The effects of the intake mod and Pierburgh maf are probably responsible for the higher revving ability.

THE CONTROLS

The separate switches mean that either section can be bypassed. The rotary control has 10 positions but its easy to find the right one - see table below.

First you determine the best mafam setting with the tuning section switched off.

The majority of engines with over 40k miles will show some maf sensor deterioration and this will be affecting the performance and driveability below 2000rpm. Sometimes the loss is quite small and you may not even be aware of it. 

You should be able to pull away using no more than 1000rpm and accelerate smoothly and linearly without any hesitation or delay before the car pickups. If not - your maf sensor is responsible. Trying to get any sense out of a dealer is often fruitless because maf degradation never shows up on diagnostic tests and any query about lack lustre low down performance is usually met with a "they're all like that sir" reply...!

"It never ceases to disappoint me that many dealers seem (or pretend?) to be blissfully unaware of this well known maf issue"

Only when you have driven a Rover, MG or Freelander diesel with the optimum maf signal, will you realise what you have been missing.  Many owners come very close to selling their car due to frustratingly poor performance below 2000rpm, only to rapidly change their minds once a Synergy 2 has been fitted.

Please visit my 75 Maf page here to find out how to decide whether your maf is faulty.

If you find that no improvement is felt using the mafam section, it can be left switched off or even disconnected until required.

SWITCH SETTINGS FOR THE 2009/10 MODEL: 

SWITCH SETTING TORQUE BHP  with Bosch maf use settings:  with Pierburgh maf use:
1 OR 6 LOW MED 1 6
2 OR 7 MEDIUM MED 2 7
3 OR 8 HIGH  MED 3 8
4 OR 9 MEDIUM HIGH  4 9
5 OR 10 HIGH  HIGH  5 10

The maf switch must be on when a Pierburgh maf is fitted.

You can try settings 6 to 10 with a Bosch maf but this usually means its due for replacing.

 

 

MPG UPDATE. 27-08-06

I have now had a Synergy 2 + Pierburgh maf, installed for 6months and my intake mod done for about 2 months. On my daily 12mile round trips to the Post Office  (max speed 60, numerous 30mph bends and a steep hill) I average 44-45 mpg based on fuel actually used. I drive 'briskly' and make no attempt at saving fuel, but only use max power for overtaking.

On longer runs sticking to the speed limit + 10% (or so!) and making 'good progress' with plenty of overtaking, I get around 49-50mpg.

Generally speaking, I avoid large throttle openings below 1500rpm, don't change down until the tacho reads 1100rpm on the level and 1250rpm on hills, the aircon is not often used, or only for short periods. (we are talking Perthshire UK, not Perth Australia!)

I always add Millers Diesel Plus to the fuel.

FUEL ECONOMY COMMENTS

The Synergy 2  in most cases will improve fuel economy depending upon how you drive. Equally, if your mpg is below average, neither will it always effect a total cure because there are 4 vital components that can also affect it as well as poor maintenance. Even an overdue oil change, under inflated tyres, binding brakes and incorrect tracking have an adverse effect on mpg.

1) Maf sensor   2) EGR valve  3) PCV valve 4) Leaking intercooler seals. See the Rover75 servicing page for more info

ITS EASY TO FIT. "If the cat had hands and could talk it could more than just fit it..."

Simply remove the engine cover and air filter cover at the back of the engine - see 3rd photo below.

 

 

The tuning section connects between the fuel rail sensor and its plug, shown opposite disconnected. Be sure to connect to the Synergy socket the correct way as shown in the instructions.

 

The maf compensator connects to the maf sensor shown below and accessible once the air filter cover has been removed.

 

 

 

We supply a long reach 5mm Hex (Allen) key to make air filter cover removal and refitting easy as the rear 2 bolts are lower down than the front 3.  

Once the cover is off you can modify it if you wish, to avoid having to remove it in future, as shown below - trim off the left hand rear corner that overlaps the maf sensor.

 

 

 

 Finally install the module in the battery box using the supplied velcro where its out of sight and well protected. (Leave the box lid off until you have found the best setting.) 

 

 

 

 

 

 

SYNERGY 2 Online shop

PRICES START FROM JUST £179 + p&p and include a 5yr warranty and 30day money back guarantee. 

PRICE FROM 1ST SEPT 2010 IS £189 + p&p. First price rise in 5 years! Order before the 1st to save £10

PIERBURGH MAF STILL AVAILABLE FOR £68 - SEE OPTIONS ON SYNERGY 2 SHOP PAGE

DASH SWITCH OPTION £20. NB Although the dash switch can be retrofitted, it will require return of the module for upgrading of the firmware and fitting of the socket so its best to order the 'D' model if you think the dash switch would be useful.

SYNERGY 2E. same price as above, dash switch not applicable to this model.

We've decided to offer this version because some owners only want to use the maf compensation and have better throttle response, reduced turbo lag and low down torque (ie never rev the engine over 3000rpm so don't need more bhp) and also because some have insurers who won't cover power boosting mods so they should accept this version.

It is exactly the same as the standard Synergy 2 but has been programmed to provide only low and midrange torque improvement to help driveability, towing and economy. There is no increase in bhp over the factory figure. The maf compensation section is the same as on the standard Synergy 2. . You should advise them you are fitting a Synergy 2e, for improved driveability, towing and economy and not for performance as there is no bhp increase.

The revised label on the module will show that there are only torque settings available so you will still be able to adjust this and the maf compensation, but not the bhp.

When ordering, ask for a Synergy 2E or put a note on the checkout screen.

click here for TERMS AND CONDITIONS Of  SALE.