DMS vs Formula Dynamics DBW

[Hedgetrimmer]

I understand that the DBW works by simply increasing the sensitivity of the throttle pedal. Anyone considered going down the route of the DMS remap instaid of the DBW modification?

Discuss...

 

[Mr.Cambio]

In my opinion, we should test DMS vs FD ECM!

 

[Dan!]

As a mod on it's own, I doubt you'd notice any difference with either of them...

 

[Emtee]

I understand that the DBW works by simply increasing the sensitivity of the throttle pedal. Anyone considered going down the route of the DMS remap instaid of the DBW modification?

Discuss...

They do different things. As mentioned below by Nikos, the FD ECM is a better comparison to the DMS map.

The DBW module alters the throttle characteristics, but doesn't change fuelling parameters. The FD ECM and DMS do alter fuelling parameters.

I believe DMS will also remap the throttle if you want so the choice is there either way.

 

[Andyk]

As I understand Enzo has DBW on his QP and it has made a difference that you can feel....Perhaps he will be along to confirm...

Just read the other thread on DMS.....Certainly Dans made no difference in the real world.....and after that for me its £1000 not well spent....

 

[Emtee]

As I understand Enzo has DBW on his QP and it has made a difference that you can feel....Perhaps he will be along to confirm...

Just read the other thread on DMS.....Certainly Dans made no difference in the real world.....and after that for me its £1000 not well spent....

I had the FD DBW on my 4200 Andy and can confirm that it makes a fundamental difference to the way the car drives. It brings a great deal more of the acceleration into the first half of the throttle travel. Pro's and cons really. Much easier to add speed, and gear changes can be quicker, but demanding around town as it's not designed for start-stop pootling. What it doesn't do (and I'm not aware of anything that does) is shorten the clutch activation from stationary in any intelligent way. You can either floor the pedal, count to three, kiss your clutch, tyres and traction goodbye and then suffer extreme velocity, or you can set off at a sedate speed where even a mobility scooter would have three metres on you before drive is engaged.

Hay ho, tis a Maserati nonetheless, and that's a good thing.

 

[OzzieAl]

Interesting topic guys,

My understanding of the FD ECM is that its a mild tune for some very sensible reasons. The map only changes above 3500rpm, why! below at this speed you are probably in built up traffic and will get no gain, you also need to retain fuel range on any kind of run, cruise at speed limits on motorways
after all its not a track tune which needs only 20 laps...etc.. unless you like fillling up every 200 miles. FD ECM also stays within the OEM rev limiter, others here can confirm, but I think the DMS tune moves the limiter up by 500 rpm which in my book is bad for the engine.
Naturally you don't need to use it, but its poor design. The FD mod gives about another 30-40 BHP which is good enough for me, if you already run a DBW it makes sense to me to run a FD all modules.... in the event of any issues you have a better chance of getting it sorted out.


I would be very interested to hear anyone who has had their DMS tune output measured by an independent dyno reading, not those who got it done on the day by DMS, there are a few tricks they can play with dyno readings to make it look better than it really is. I don't mean anyone
is cheating , I just like the separate cross check... for reference... we all know two different dyno's done on the same car are unlikely to give exactly the same readings... weather atmosphrics on the day, everything counts...

Ozzie

 

[ENZ525]

As I understand Enzo has DBW on his QP and it has made a difference that you can feel....Perhaps he will be along to confirm...

Just read the other thread on DMS.....Certainly Dans made no difference in the real world.....and after that for me its £1000 not well spent....

The difference with the FD DBWEM (to give it's ful lname), is something you can really feel as Andy says.
All it does is sharpen up the throttle response (hence the name Drive By Wire Enhancement Module),
It comes with a switch that has 2 settings, which can be programmed by Jeff at FD and shipped with aggressive or very aggressive settings...
I think the module does help with clutch wear as you can feel it engages gear much quicker with the module on.
As Miles says, if you do racing starts, then kiss a few things goodbye...but if you treat it gently when starting off,
then changing up through the gears once on the move is lightning quick.

 

[Mr.Cambio]

I still remember Richard Hammond driving this blue GS, telling that the last thing the car needs, was extra power. Get the DBW, get a selection of larini/tubi, get the springs and you have everythingower, handling and a knock on your back when you thrash the gears on after another...

 

[Mr.Cambio]

BTW, do you find difference between aggressive and more aggressive setup?

 

[ENZ525]

...and maybe some racing stripes Mr C....

 

[ENZ525]

BTW, do you find difference between aggressive and more aggressive setup?

Yes Nikos, There is a difference between the 2 settings in mine.
When my one was first installed, it had a fault...so Jeff sent me another one and I asked for the more aggressive setting to be made the normal one,
and for a an even more aggressive setting to be made...he obliged and I am very pleased.

 

[Mr.Cambio]

...and maybe some racing stripes Mr C....

Not the stripes of the yellow Ferrari 575 on the other post??No stripes, Enz, maybe a big trident on the roof!!

 

[Mr.Cambio]

Yes Nikos, There is a difference between the 2 settings in mine.
When my one was first installed, it had a fault...so Jeff sent me another one and I asked for the more aggressive setting to be made the normal one,
and for a an even more aggressive setting to be made...he obliged and I am very pleased.

I cannot feel much difference between the two settings. Jeff suggested that getting it harder would hit the flywheel.. :-(

 

[ENZ525]

Not the stripes of the yellow Ferrari 575 on the other post??No stripes, Enz, maybe a big trident on the roof!!

hahahah, yes, that would be more appropriate

 

[ENZ525]

I cannot feel much difference between the two settings. Jeff suggested that getting it harder would hit the flywheel.. :-(

What can I say, I have been running mine for a couple of years now Nikos, no problems whatsoever...

maybe yours is even more aggresive than mine? who knows...maybe there is a difference between the 4200 vs QP...don't know...

 

[Mr.Cambio]

Don't say that i'm not satisfied..the harder, the better!!

Maybe the QP, due to its family "oriented character", has different settings BUT the clutch is the same, or?

 

[OzzieAl]

I have driven one 4200 install and would go so far to say that Very Aggressive should be labled 'TRACK" I did not find it very drivable on public roads, you could spin up your rears in a nano secound. and that was dry weather... I think it would work better on a track as engine/wheel speeds are higher having two settings is great!!

Ozzie

 

[KyriakosSpyder]

Interesting topic guys,

My understanding of the FD ECM is that its a mild tune for some very sensible reasons. The map only changes above 3500rpm, why! below at this speed you are probably in built up traffic and will get no gain, you also need to retain fuel range on any kind of run, cruise at speed limits on motorways
after all its not a track tune which needs only 20 laps...etc.. unless you like fillling up every 200 miles. FD ECM also stays within the OEM rev limiter, others here can confirm, but I think the DMS tune moves the limiter up by 500 rpm which in my book is bad for the engine.
Naturally you don't need to use it, but its poor design. The FD mod gives about another 30-40 BHP which is good enough for me, if you already run a DBW it makes sense to me to run a FD all modules.... in the event of any issues you have a better chance of getting it sorted out.


I would be very interested to hear anyone who has had their DMS tune output measured by an independent dyno reading, not those who got it done on the day by DMS, there are a few tricks they can play with dyno readings to make it look better than it really is. I don't mean anyone
is cheating , I just like the separate cross check... for reference... we all know two different dyno's done on the same car are unlikely to give exactly the same readings... weather atmosphrics on the day, everything counts...

Ozzie

I had my 02' Maserati Spyder tunned using DMS ecu upgrade. Before that i had fit a custom sport exhaust system with a larini X pipe in one of the best exhaust centers here in Greece and an FD High Performance Air Filter. I can assure all of you that my car was like having something new, faster and more fun to drive. I also decided to put it on a dyno and see if my car had good numbers. I tried one of the most strict dynos available. It was a MAHA LPS 3000. Unfortunately even i was very pleased with the engine power results, the owner of the company which i used that Maha machine did not push my car to the end of the limiter cause as he said it was bad for the dyno. So if you will observe to the attachment shown to the print out, the engine power is 423.5 bhp and the torque 457.1 Nm with only 7060 Rpm. My car after the DMS ecu upgrade had something like 7900 Rpm and that is why in the diagram below the horse power power still continues and grows, but suddenly the dyno stops the proccess. The only dissapointed part of the results was the wheel power cause it had a great gap from the engine HP till power delivered to the wheels with more than 100 hp difference! The torque graph also looks a bit strange but a friend of mine found it normal. Some people told me that F1 and any automatic gearbox in general causes problems when the engine power is delivered to the wheels in contrary to a manual gear box. I also red through various internet sources that a MAHA dyno is not accurate when counting wheel power. Im not an expert so some other opinions might be valuable...

 

[bill]

Κυριάκο
Dyno results can vary a great deal, as it depends on so many variables. I dyno bikes and I have had many people quoting figures and not noticing improvements from various upgrades and others that see big imrovements from the same mods! Was the compression, tyre pressure, tread depth, oil & water temperature, etc noted? When these tweaks are done , imrovements can only be meaningful if measured on the same dyno. The single most impovement people would notice is drivability rather all out power unless it's a race bike. Even then, how the power is delivered is just as important. Also I have to ask..... Bad for the dyno????? Car dynos should be able to measure 800+ bhp comfortably!