GT ECU Tune hp

Greek

New Member
Messages
9
Has anyone used this company for performance tunes? I’ve found a couple good reviews on other cars and such. Also has anyone used them to make cut and program keys? Their are some bad reviews with ecu repairs and such but that could be as a result of the buissness they are in too. Prices are very competitive with above average gains claimed for 250 pounds. Any guidance would be appreciated.

https://www.autotronics.co.uk/maserati-granturismo-4.2-405hp-ecu-tuning-remapping-programming.html

 

Ewan

Member
Messages
3,085
Don’t expect big gains on a remap of a 4.2 GranTurismo. In fact, leaving the ECU well alone would be my tip. You’d be better to save your money and put it towards upgrading your car to a 4.7 version.
 

Wattie

Member
Messages
2,021
Don’t expect big gains on a remap of a 4.2 GranTurismo. In fact, leaving the ECU well alone would be my tip. You’d be better to save your money and put it towards upgrading your car to a 4.7 version.
Good advice
 

Greek

New Member
Messages
9
I know I’m not expecting miracles I’m just looking for a little more power and possibly better gas mileage like I’ve gotten from other cars I’ve upgraded in the past. Even if the gains are only 10 hp instead of 29 hp claimed from the higher octane I use I would be more than satisfied as long as I’m not causing some sort of more immediate damage/troubles. Which is why I’m asking if anyone has heard anything about them or used them. Even though it seems they might outsource it to some other bigger company who is unknown.

Correct me if I’m wrong do ECU tunes in general also modify the TCU on these cars? That alone to me would be worth the price if the transmission is in fact more responsive.
 

Ewan

Member
Messages
3,085
Even if you did get an extra 10 bhp, which I doubt, you’ll not notice it on a heavy car like a GT that already has 400bhp. So, personally, I don’t see the point.

But in answer to your question, in my 25 years of multiple Maserati ownership I’ve never heard of this company, never heard of any other Maserati owner using them, and they’ve not been recommended by any Maserati specialist garages. That’s not say they are not a perfectly okay outfit, as they may well be. It’s just what they offer isn’t particularly suitable to our NA cars. Of course, if you have a modern turbo diesel car, then it’s a different story.
 

conaero

Forum Owner
Messages
29,436
Save your money!

Dan had his GTS mapped from stock to 505hp and paid about a £1 per bhp for the pleasure.

Put it up against my stock GTS (434hp?) and did numerous acceleration runs from all different speeds and gearing...exactly the same....neck and neck every time.
 

CatmanV2

Member
Messages
29,484
To add to what everyone else has said, I reckon that's an autogenerated page and URL. If you phone them up, they'll say they can't do anything. Worse you'll get there and they'll try, and won't be able to do anything.

C
 

Greek

New Member
Messages
9
Ok I’ve contacted them but no response yet. Probably right just a generic page.

How about this tune? Has anyone used them Italian race car company around since 1959 and still tuning and racing cars. The price isn’t a lot cheaper but the pedigree of the company is so impressive maybe it’s a better quality tune than the one ones used by most today?

 

MC_Bob

Junior Member
Messages
94
Do you really think Maserati (and most manufacturers) would release a car that can gain such power from plugging in a computer?
Turbo cars sure, but then there are all the side effects of that. N/A cars, no chance.
 

midlifecrisis

Moderator
Messages
6,606
Well BMW make the 2 litre engined Z4 with various states of tune as do other manufacturers with their engines being in different models.
Maserati have made the GT and only the GT so they would have made it to comply with the regulations which would have compromised ultimate maximum power. Yes you can retune it to overcome this but the benefits might not be cost effective.
 

ChrissGT

Junior Member
Messages
59
From what I read, if you want more power, you at least need to change to to 200cell cats. Then a ecu tune could gain some bhp. If you are looking for a better gas response and better shifting your money is best put towards a the FD DBW module. No experience here, but from what i have read it should fit some of your needs. Gas mileage is well, mostly depending on the amount of tunnels there are between you and your destination :)
 

midlifecrisis

Moderator
Messages
6,606
Sports cats yes, delete the rest but ECU will adapt to the better exhaust flow. You could also improve the air flow into the engine with an aftermarket filter. These are simple but more effective modifications than DBW or similar.
 

Zep

Moderator
Messages
2,744
If you change to sport cats and a filter is isn’t necessarily the case that the ECU will adapt fully, there may be limits in the ignition and fuel tables that it runs into. It is true that it will be expensive to completely remap the engine. Most of the “tuners” out there will be getting their revised maps from other sources and then maybe making their own adjustment on top of that.

The real issue here is the numbers. A 50 bhp increase on a 200 bhp car is really noticeable 25%), esp on turbo cars. A 50 bhp increase on a 440 bhp car is much less noticeable (11%). When you add that any increase in torque is multiplied by the gearing in lower gears and your 11% becomes even less likely to set your hair on fire than the 25% in your hatchback.
 

MC_Bob

Junior Member
Messages
94
Agreed with Zep.
Coming from heavily modified turbo background, all of the 'mods' which I see are either placebo or 'cosmetic'. The amount of people paying for remaps and the only result being a sharper pedal response and loss of around town driveability is astounding. But it feels more 'ready to race'.
 

rockits

Member
Messages
5,628
Funny you should say about Autotronics as just recently contacted them about getting a spare key for my R129 SL as you can't order/get them from Mercedes.

Issue is needing to rip out the immobiliser and send it to them with primary key so they can supply and code a second.

The other issue is around security. I have a real issue sending stuff like this to people I don't know or trust for obvious reasons. I've heard many shipping keys off to get a 2nd/spare supplied and coded. With so many thefts it would be difficult to use that code or sell it to criminals to collect a car they have a coded key for and would have the likely home address for.

Never come across anyone that has used them though.and keen to find out more before send it all off. They can't do it while I wait which I found a little strange.