I have my MS sorted but not ideal. Car starts runs, idles, revs, accelerates at quite a rate but due to the high speeds required I cannot map the bit
above 4K and more than 50% throttle
So, cruising around is good, pick up is OK, although it lacks any real torque when pushing the pedal in 5th and
takes off when the vvt kicks in...
Is a rolling road session the only realistic way to get the thing running properly and with a bit of economy on board as well?
Was thinking of a track day but no time at present with 2 jobs etc...
Or is a step back to bike carbs the next step??
Its difficult to tune the high areas of the map on the road. But I found that a good bootfull in second and third up to the limiter every run out was
enough (over 10 runs or so) to get the WOT AFR to the right ballpark (12.5-13) when I was tuning the pinto.
It got to the point (after about 500miles of logging) of being almost spot on 
It just takes time... as you get happy with each area of the map dont forget to alter the filters when doing analysis so MLV leaves those areas alone
What do you mean you can't map it past 4K and 50% throttle - the map bins on the screen don't go that far?
Save your current map, print it out so you've got a copy. You can change the values for the bins, if you're using TPS values, you can alter
it to fit your TPS / rev range.....
Cheers
Vince
Top corner of the map is 7200rpm and 100% throttle and that's about 155mph in 5th....
I'm using the Ve analyser in TS. Found it a bit more user friendly than MT.
I'll give the 2nd WOT a go, still canny fast once the vvt kicks in
2nd WOT and use the brakes to keep a steady speed.
Track day £150 rolling road £175- £500 just get an open pit lane, get a WB lambda, datalog and megatunix or play around with the config and use
autotune (my favorite).
Job done and a good day is had.
Regards Mark
Use 3rd or 2nd gear to do some WOT runs - Then log them and see what the AFR is doing.........I managed to do a pretty good map from just doing
this......
I found the motorway (between two junctions) to be a useful area to be able to map.
I have wideband, I don't understand how to study the logs in Megatune.
I did some logging and ran the corrector in MLV and the thing was worse!
I've used the Tunerstudio autotune feature to get the bottom end close.
I'll give the motorway 2nd and 3rd bit a go.
Make sure your target AFR tables are correct.
Also remember if your VE table is so far out you get rich misfires, a WB lambda will read it as lean and just make things worse. Hence the need for
looking at logs in MLV when you can.
Autotune is good for the cruising areas but not so great at WOT.
David
I use the local bypass for mapping, it has some long and fairly steep hills that can be used to get a steady load in each gear sometimes with the help
of the brake pedal as well as trailing throttle when going down hill.I usually do a couple of slow runs and then build up speed a bit when I have seen
theres no camera vans about etc.
As said its best to use mega log viewer for low and moderate speed running and then manually adjust the top end of the map after studying the
results.
Paul
I have often wondered about the VVT system on Zetecs, it seems that on the Focus it is modulated by the solenoid valve being driven at a variable mark
space ratio,
rather than just on or off as with an after market ECU.It may be possible to design a unit that pulses the valve based
on the engine revs and load , ive heard of other people finding it is an on off effect with the throttle when it switches in which is not what you
want when cornering fast in a Seven.
Paul
quote:
Originally posted by coozer
So, cruising around is good, pick up is OK, although it lacks any real torque when pushing the pedal in 5th and takes off when the vvt kicks in...
Is a rolling road session the only realistic way to get the thing running properly and with a bit of economy on board as well?
Was thinking of a track day but no time at present with 2 jobs etc...
Or is a step back to bike carbs the next step??
As above 2nd and 3rd gear a for WOT.
When using MLV to autotune you do need to have things set up properly.
Correct inc. files in mlv
Lambda scaling in MLV (various different options)
Y-scale in MLV maps (as you are alpha-N)
Correct AFR map
TPS values in the AFR map (I had some problems with this with some tunerstudio versions)
Once MLV auto tune is working you will get there in no time for the fueling. Ignition is more difficult, but if you have someone elses proven map
(Flak Monkeys) and your trigger angle is correct then you should be close enough.
Matt
quote:
Originally posted by paulf
I have often wondered about the VVT system on Zetecs, it seems that on the Focus it is modulated by the solenoid valve being driven at a variable mark space ratio, rather than just on or off as with an after market ECU.It may be possible to design a unit that pulses the valve based on the engine revs and load , ive heard of other people finding it is an on off effect with the throttle when it switches in which is not what you want when cornering fast in a Seven.
Paul