I was reading down, waiting to get to the end to put exactly this..
You saved me the hassle..
On road mapping via the internet
- Thread starter ChrisD.
- Start date
I was reading down, waiting to get to the end to put exactly this..
You saved me the hassle..
I'd like to see someone map all load sites in the map on the road..
Unless you know of somewhere with a variable sloped hill, one that can stop you accelerating completely and then hold the vehicle precisely at the desired rpm while you vary the throttle inputs, boost level, ignition degrees and fuel injection timing. and maybe VVT if you have that too.
Then realise that when you change something like the VVT, other perameters will also change so you have to go back through the boost > fuel > ignition settings whilst recording your findings...
Oh wait... what were your numbers before the change again..
Unless you know of somewhere with a variable sloped hill, one that can stop you accelerating completely and then hold the vehicle precisely at the desired rpm while you vary the throttle inputs, boost level, ignition degrees and fuel injection timing. and maybe VVT if you have that too.
Then realise that when you change something like the VVT, other perameters will also change so you have to go back through the boost > fuel > ignition settings whilst recording your findings...
Oh wait... what were your numbers before the change again..
I'd like to see someone map all load sites in the map on the road..
Unless you know of somewhere with a variable sloped hill, one that can stop you accelerating completely and then hold the vehicle precisely at the desired rpm while you vary the throttle inputs, boost level, ignition degrees and fuel injection timing. and maybe VVT if you have that too.
Then realise that when you change something like the VVT, other perameters will also change so you have to go back through the boost > fuel > ignition settings whilst recording your findings...
Oh wait... what were your numbers before the change again..
Did you not read my post? I said use a dyno and then take it on the road. You can't replicate the road very well on a chassis dyno.
Even transient engine dynos running road load simulations will struggle to replicate all conditions of a car
This is why OEMs take their cars to Sweden and the desert to finish off the engine calibrations if you can do it all on a dyno
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A couple of the guys from Dunton Ford (i think they call it then technology centre) were telling me how the software writing process varied massively from the UK to the US. Here youd have one team working on one particular problem and no one else could make changes to the work they had done.
In the US it was a total free for all, and one team would make unreasonable changes to another team's work, even if they were not familiar with how the other team's work worked!
Over there they had lots of warranty issues due to software issues and many software updates for the ECUs
So amongst other things, theyre there to see how their cars feel with software written their way compared to the US way
In the US it was a total free for all, and one team would make unreasonable changes to another team's work, even if they were not familiar with how the other team's work worked!
Over there they had lots of warranty issues due to software issues and many software updates for the ECUs
So amongst other things, theyre there to see how their cars feel with software written their way compared to the US way
Haven't really spoken to them except to ask about the noise, which they say is normal. So what evidence do I have apart from 'it's a little lumpy' and 'it doesn't quite feel 100%'?
I think you'll find those GTR maps were originally tried and tested on a dyno first though in the R&D development of the tune. Then on-road mapping was done to make any fine tuning adjustments on customers cars.
My Mustang was done via email and datalogging. Difference is their tuning packages were all tried and tested on a rolling road. As it turns out the original first map was absolutely perfect, Andy from PS could not believe how good it was, but it had being designed on a dyno.
It was only when I fitted a smaller pulley, they had to make some slight adjustments after checking the datalog to the tune and from the results the dyno picked up, which were easily corrected and sorted.
I think a sensible plan is to email Ant this week explain that I am not happy still and see what he says. I also think that for my own piece of mind I will get Andy to look it over on Saturday, mainly because I doubt I can get into Indigo for a few weeks and for the cost of a tank of fuel I'd rather know that my car isn't going to blow up.
Deleted member 66701
Deleted member 66701
I tuned my Westfield using the VE Analyse Live! part of TunerStudio and a pair of det cans.
Took it for a rolling road tune at Northampton Motorsport and the chap didn't change a thing, said there were no improvements to be made.
As for needing to tune areas you don't hit on the road - why bother? Just approximate from the surrounding cells.
Took it for a rolling road tune at Northampton Motorsport and the chap didn't change a thing, said there were no improvements to be made.
As for needing to tune areas you don't hit on the road - why bother? Just approximate from the surrounding cells.
I see tuning on the road like game stability testing on an overclock.
Put a PC on a stability test for a controlled, prolonged period to test stability or play games on it and call it stable if it doesn't crash.
One is a controlled test in an environment designed for the job. The other is best guesses with variations everywhere.
Computer talk in motors. Yep.
Put a PC on a stability test for a controlled, prolonged period to test stability or play games on it and call it stable if it doesn't crash.
One is a controlled test in an environment designed for the job. The other is best guesses with variations everywhere.
Computer talk in motors. Yep.