4.7 Vantage remap
Discussion
Glendower said:
I have been offered a remap for the 4.7 Vantage that I have ...claimed 22 increase in bhp, also claimed that the original mapping identical to the original 4.3 engine....anyone any experience or comments?..
There are many people around that can advise about the realities of re-mapping and what effects you actually see at the wheels. Reading the Bamford Rose thread and talking to them is very interesting. Personally increases in bhp don't interest me as much as increases in torque and how the torque is delivered. That is what makes more difference to the driving experience and there are other ways of achieving improved driveability outside of re-mapping the ECU.
Glendower said:
I have been offered a remap for the 4.7 Vantage that I have ...claimed 22 increase in bhp, also claimed that the original mapping identical to the original 4.3 engine....anyone any experience or comments?..
My concern would be lots of people make claims.... Most can't substantiate them
22bhp maybe.... But what if it's at the last 1000rpm?? How often will you rev the car that hard??
Chasing bhp is seldom very rewarding, far better to improve drivability, handling, or even the nut behind the wheel getting some extra tuition
IMO of course...
Lunablack said:
...or even the nut behind the wheel getting some extra tuition
A valid point, give your car to any pro racing driver and he will go far, far quicker than you will in a remapped version of the same! I guess the remap is a good option if you just like acceleration, but I've learned recently it's far more fun to go quick through the twisties than fast straight line acceleration Have a look at the driver training days, or maybe the PDC?
where do we start??I dont think anyone outside the factory has access to the ECU do they ?
so anyone offering it, must be using a piggy bag interceptor kind of fudge box ...ask the question perhaps of how many they have done before
22bhp from a remap onto 98RON, bump up the rev limit a bit I guess...looks good on paper but not likely to be noticable unless you have a real sensitive bum dyno
so anyone offering it, must be using a piggy bag interceptor kind of fudge box ...ask the question perhaps of how many they have done before
22bhp from a remap onto 98RON, bump up the rev limit a bit I guess...looks good on paper but not likely to be noticable unless you have a real sensitive bum dyno
Vergis said:
Any remap will help the low end torque 4.3 or 4.7 alike. For me its torque thats most important.
From what I have learnt the fuel ratio is increased slightly. Almost like the OEM mapping purposely retarded the engine so not to pip anywhere close to DB9.
Just my opinion which no doubt will be challenged.
The AM powerpack added 10 bhp from changed airbox, and 10bhp from remap to run on Optimax or other 99RON equivalent fuel. So 10 bhp is available if you remap and run higher octane fuel. Its probably the availability of fuel that has led AM to retard the ignition to where it is. I wouldn't have thought that they would worry much about losing DB9 customers to V8 Vantages as much as they worry about losing Vantage customers to Porsche, so if there was free additional power available to the Vantage, they would offer it to everyone.From what I have learnt the fuel ratio is increased slightly. Almost like the OEM mapping purposely retarded the engine so not to pip anywhere close to DB9.
Just my opinion which no doubt will be challenged.
Discussions elsewhere seem to conclude that fuel ratio can be decreased at the top end of the rev range which adds more power up there. The V8 normally runs rich at full power to keep the cats at a sane temperature. By leaning the mixture you get more power but risk wrecking the cats.
Its interesting that most Vantage 24 hour racers run with about 475 bhp, which is what Bamford Rose will offer without conventional remapping, so if there are additional horses available, you have to ask why racers don't use them
bogie said:
I dont think anyone outside the factory has access to the ECU do they ?
so anyone offering it, must be using a piggy bag interceptor kind of fudge box ...ask the question perhaps of how many they have done before
The read/write protocols on the factory ECU have been available on a number of tuning systems for some time. The same level of access that the factory has is not present, but if fuel, spark, effective throttle, torque tables etc. are are all recognizable that is what most tuners are looking for. If you have a DAMOS file and care to spend the time identifying all portions of the file you could access everything, but it is a waste of time because you wouldn't change those sections of the file anyway. Not sure what a "piggy back interceptor kind of fudge box" is?so anyone offering it, must be using a piggy bag interceptor kind of fudge box ...ask the question perhaps of how many they have done before
v8woollie said:
Personally increases in bhp don't interest me as much as increases in torque and how the torque is delivered.
I agree, deliverable power in terms of acceleration is more usable, and noticeable day to day than outright bhp.Torque over top speed every day of the week.
Massey Ferguson showroom here I come!
Vantagefan said:
Massey Ferguson showroom here I come!
At least get a sporty one 
http://www.lamborghini-tractors.com/en-EN/defaulte...
ECU can be mapped - See my thread - http://www.pistonheads.com/gassing/topic.asp?h=0&a...
Car felt much better for it. Faster throttle response, increase BHP and Torque through the rev range. My car was the test dummy as the tuner had just bought the equipment to hack the ECU, I got it done for free by Viezu, no idea what they would charge. They came across very proffessional did numerous rolling road tests and constantly tweaked the car for about 4 hours.
Car felt much better for it. Faster throttle response, increase BHP and Torque through the rev range. My car was the test dummy as the tuner had just bought the equipment to hack the ECU, I got it done for free by Viezu, no idea what they would charge. They came across very proffessional did numerous rolling road tests and constantly tweaked the car for about 4 hours.
jonamv8 said:
ECU can be mapped - See my thread - http://www.pistonheads.com/gassing/topic.asp?h=0&a...
Car felt much better for it. Faster throttle response, increase BHP and Torque through the rev range. My car was the test dummy as the tuner had just bought the equipment to hack the ECU, I got it done for free by Viezu, no idea what they would charge. They came across very proffessional did numerous rolling road tests and constantly tweaked the car for about 4 hours.
Thanks for this.....was it the 4.3 or 4.7 engine, I had the upgrade for my 4.3 done by an Aston dealer, I now have a 4.7 and was told the mapping was the same on both engines....so you could apply the remap safely.....Car felt much better for it. Faster throttle response, increase BHP and Torque through the rev range. My car was the test dummy as the tuner had just bought the equipment to hack the ECU, I got it done for free by Viezu, no idea what they would charge. They came across very proffessional did numerous rolling road tests and constantly tweaked the car for about 4 hours.
AMDBSNick said:
Vantagefan said:
Massey Ferguson showroom here I come!
At least get a sporty one http://www.lamborghini-tractors.com/en-EN/defaulte...
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