POWERFC expert needed !
- Thread starter radiobar
- Start date
hi !
just tried the base map and it runs very very rich.
at 0.7 bar i get under 10,around 9.2,maybe 9.5
so i had to adjust it via injector settings,but
now i have AFR around 19 at idle. and it still
runs around 10,10.5 which i think is to rich.
what fuel pressure would you recommend?
actually i got 3 bar i think.
maybe i should turn it back to standard 2.5
i also tried it with 1.7 bar and it works ok,
but its same laggy as before.
bye.
just tried the base map and it runs very very rich.
at 0.7 bar i get under 10,around 9.2,maybe 9.5
so i had to adjust it via injector settings,but
now i have AFR around 19 at idle. and it still
runs around 10,10.5 which i think is to rich.
what fuel pressure would you recommend?
actually i got 3 bar i think.
maybe i should turn it back to standard 2.5
i also tried it with 1.7 bar and it works ok,
but its same laggy as before.
bye.
O
Odin
Guest
The standard fuel pressure for a gti-r is 3 bar matey, Not 2.5 bar.....
Rob
Rob
A
AJ4
Guest
forget what your AFR is at idle, its meaningless if you are in closed loop lambda mode. You have to disable closed loop first before you can tune it ! It should be a nice steady 14.7:1 for most of the lower part of the map.
F
Fusion Ed
Guest
Are people using widebands when doing this? Or just hoping going on values from the PFC?
A
AJ4
Guest
I wet my finger and hold it next to the exhaust and then sniff it, isnt that the way to do it ? :lol:Fusion Ed said:
T
tro||
Guest
no ross you will fook up big time doing it like that, you need to run a hose pipe from the drivers seat round the back of your car and tape it to the exhaust, then you can sniff it on the move so you can keep an eye on it whilst driving.
widebands :roll: , he'll be inventing the wheel next :lol: :lol:
widebands :roll: , he'll be inventing the wheel next :lol: :lol:
A
AJ4
Guest
whats one of these 'lambur' sensors do then anyway? is it some sort of secret tuners device ? :lol:
come to think of it, has anyone else been charged by a so called tuner to have their map tuned that would like to publish it on here for peer review ?
come to think of it, has anyone else been charged by a so called tuner to have their map tuned that would like to publish it on here for peer review ?
T
tro||
Guest
does it warn the farmers when lous out prowling around their flock :lol:AJ4 said:
A
AJ4
Guest
doofus ! thats a 'lamb bummer' sensor !
T
tro||
Guest
i believe ross uses one of those to get his maps as near as damn it :lol:Fusion Ed said:
T
tro||
Guest
if the mystic megaphone doesn't get the map quite right traditional methods are used
T
tro||
Guest
if neither of the above gets the results he's after theres only one option
who needs widebands when they can ask the dead and hope for the best
who needs widebands when they can ask the dead and hope for the best
A
AJ4
Guest
lmao ! stop giving away all my tuner secrets !!! everyone can now set up a business from their bedroom and call themselves a 'tuner' !
Can I sue you for loss of earnings although I'm not actually a 'tuner' ?
Can I sue you for loss of earnings although I'm not actually a 'tuner' ?
hey !
back to topic please
my car runs now with 1.4 bar and the standard map,
its still to rich at around 10.5 at full load.
even at little load its around 11.5.
i think that at 1.4 bar it runs better then with 1.8 before...
there is still one thing:
when target is 13.1 (see sticky thread about powerfc)
why cant i set all values to 1,122 ?
thanks
bye.
back to topic please
my car runs now with 1.4 bar and the standard map,
its still to rich at around 10.5 at full load.
even at little load its around 11.5.
i think that at 1.4 bar it runs better then with 1.8 before...
there is still one thing:
when target is 13.1 (see sticky thread about powerfc)
why cant i set all values to 1,122 ?
thanks
bye.
Last edited:
A
AJ4
Guest
The standard map is very rich, and you are probably running higher than normal fuel pressure as well. Drop the fuel pressure a little bit and it will lean out across the whole map.
What is the problem with setting the target AFR value to 13.1 (1.12 on the PFC) ? On the PFC you can set anything from 0.5 to 1.496 ( equivalent to an AFR ratio of 29.4 to 9.83 )
What is the problem with setting the target AFR value to 13.1 (1.12 on the PFC) ? On the PFC you can set anything from 0.5 to 1.496 ( equivalent to an AFR ratio of 29.4 to 9.83 )
A
AJ4
Guest
Ok, why would you want to set every value to 13.1 ? the car would be uneconomical, slow and hesitant.
There is nothing stopping you from doing it, there is just no point. The whole point of tuning an engine is to either make it more powerful or more economic. The engine is a large air pump, it is more efficient over a certain rpm range and the fuel has to be adjusted accordingly.
The other thing is, even if you set the target AFR to all the same value, what you actually get in real life is totally different. All your doing is saying that under certain conditions you would like this much fuel when its this much rpm and load, it doesn't work like that in real life. You are only giving yourself a basis to start tuning on.
There is nothing stopping you from doing it, there is just no point. The whole point of tuning an engine is to either make it more powerful or more economic. The engine is a large air pump, it is more efficient over a certain rpm range and the fuel has to be adjusted accordingly.
The other thing is, even if you set the target AFR to all the same value, what you actually get in real life is totally different. All your doing is saying that under certain conditions you would like this much fuel when its this much rpm and load, it doesn't work like that in real life. You are only giving yourself a basis to start tuning on.