456M GTA remapped to 500bhp and 470 FtLbs

Very impressive. I wonder what an ECU remap would do for a car whose only mod is a tubi exhaust.

 

Bravo, Sir! That's a healthy improvement over stock. I bet your tuner could rack up a fair bit of business. You'll have to get back with us on driving impressions.

Has anyone tried a twin turbo 456, I wonder...

 

I too am happy with the re-map Rob did for my 575 and taking into account the requirements of my 3inch exhaust. Although your 456 has in fact improved substantially, I am always wary of figures from rolling road dynos which show flywheel power. What was the factor used to come up with flywheel numbers from their rolling road dyno? As a comparison a preliminary dyno run on my 575 showed 455 rwhp, a further tune from Rob has increased that according to my V-Box. I am interested in comparing tunes but cannot without your rwhp numbers. In any event it does show what Ferrari leave to not be enjoyed in their stock motors. Makes it much easier to increase the power in the next model without much effort despite the advertised advancement in engine technology.

 

I am also amazed at the print-outs which show your peak power at only 5800rpm. The ft-lb torque and hp curves cross where they should at 5250rpm so I something else is amiss. These cars are no where near peak power at that low an rpm.
Image Unavailable, Please Login

 

i was also surprised that peak power seems to be about 5500 rpm...and then drops off dramatically. i have felt this before, and tend to short shift at around 5000. what is the point of the other 2k of revs possible in this car??

 

Great to see someone unlocking the true potential of their Ferrari.

 

The increase in HP is incredible, I wonder how this translates into 0-60/100 times.

It is more than the 550 and close to the 575 HP figures -

Was the stock ECU mapping so much off that such a significant increase is possible?

 

I don't think our ECU's are so much "off" as having to be tuned by the OEM so the car will meet emissions standards. Low emissions and peak power are diverging goals, so the OEM ECU tune is a compromise. It would be interesting to put a sniffer up Colin's tailpipe and see how closely his car meets emissions now after tuning.

I'm always a bit mistrustful of DynoJet type dynos as unscrupulous operators can tweak them to read whatever they want to justify the work they've done. I'm not implying that's what happened at DMS because they're a highly regarded tuning shop, but it certainly does happen elsewhere.

It would have been interesting to have some 0-100 times, or dragstrip times before & after. Back to back 0-100 times don't lie.

 

Unfortunately 0-100mph times do lie as so much depends on either driver skill or the effectiveness of the traction control to get started. There are a couple of sedans on sale now which are quicker than an Enzo 0-60, ie low 3 sec. Real world performance occurs when already on the move. Far too much importance is given to times from standing start where 4wd cars rule. For me, when I read a new road test I always subtract 0-60 from 0-100 (0-100kph from 0-160kph) times to get a representative idea of that cars real performance. I have a V-Box in my 575 which is always ready to record 60-100mph. This interval is easily done without shortening tire life, alerting the cops and is over with much quicker so the exposure time of illegality is much reduced, especially if you give your brakes a work out as well. There is a big difference between a 575's 5.4sec and a 599's 3.9sec 60-100mph times. With Rob's final mail order tune my 575 is down to 4.1 sec. A big exhaust and DMS' tune is the best money you can spend and the sound comes free.

 

Willy you're generalising about 0-100 times being a poor metric for comparing performance between different types of cars, and I don't disagree, however I'm talking specifics, ie the same car, same conditions, same driver, etc.

I'm not trying to take anything away from DMS or their accomplishments with Colin's car. Only to point out that dyno runs can and do produce whatever numbers the operator (and the owner) want to see.

The proof of the pudding is always out on a track, not in a dyno cell.

 

John, with a car as hard to launch as these I doubt most could get it right back to back. 1/4 mile times can also vary by seconds depending on the launch, what is known however is that the speed through the traps irrespective of ET (within reason), is more indicative of power. Picking a speed interval without a shift involved makes a very accurate and handy 'street dyno'. 60-100mph in these cars is all done in 3rd gear. Of course a GPS type speed computer is needed.

You are right about the dynos, with the proliferation of dynos around Perth with shonky tuners selling speed parts for Chev LS engines in our Holdens, there are up to 50rwhp differences between them. Any rolling road dyno which prints out bhp and not rwhp should be viewed with even greater suspicion. Drivetrain losses can vary between 10% and 25% of bhp depending on vehicle and transmission so I asked what factor was used. Automatics like on Colin's 456 will lose more than a manual gearbox because of slippage in the torque converter. I doubt very much the 456 in question produces that much bhp however with my own experience I don't doubt that Rob at DMS has improved it greatly over stock.

 

I'm interested in this!
But my car is a -94 GT and not a auto or a modificata!

 

Any news on what become of this?

 

Hi, I am going to take my 575M down to Rob at DMS soon, the only engine modifications on the car will be K&N air filters, Larini test pipes deleting the Cats and Tubi rear boxes.

The car will be ready once Aldo Riti at Riverside Performance Engineering has waved his magic hands over the car, it is getting a full cam belt service and 4 new tires next week.

The car has only done 10k miles from new so it will be interesting to see the results!

cheers
Mark
Image Unavailable, Please Login

 

Yummy yummy yummy. Anyone in States who can do this?

 

Eurocharged is supposed to be able to remap the Motronic 5.2's in the 550's. They claim they've done several. Eurocharged Performance and Tuning- Exotic and European Tuning Specialists

IPS Motorsports there in Lewis Center, OH are a dealer for them: IPS Motorsports - Ohio's Premier Performance Shop and Tuning Facility

 

Appreciated

 

Aren't remapped ECUs currently available for around 3k?

 

Has anyone else remapped a 456m would love additional options

 

I am with you, very curious.

 

Quite a bit of difference in the F116 engines and the F133 engines for tuning. The F116 has much longer duration cams to try and get power at higher revs. The F133 has milder cams and two position intake tract for the same thing. Likely needs to be done by a real expert like Trev, if you can convince him to do some 5.2 work on the F116 and F133.