I want some pops & Bangs on overrun as My car is not using enough fuel & i need to shorten the turbo Life

Does anyone know where it is on the commander unit as i cannot find / remember
Thanks

Dean

 

You could add some fuel on the first row of the fuel map.... but as for actual overrun fuel this can't be adjusted (not on the commander anyway). The fuel is cut (i.e 0% IDC) when not on the throttle above a certain rpm.

Tony.

 

Yes thats it, I just explained it wrong.
Thanks

 

Yes it can It can be adjusted and set to add fuel on the overrun via the commander.....Pop...bang...flame...
The two rpm settings can be found just above the idle rpm and below the RPM limit on the commander handset.
Set them up to 5000 and see what happens Or even just set one of them up and make it switchable via the A/C button

Andy

 

Bugger... wrong again. You sod Andy .

I must actually look at more than just the main maps one of these days

Think i'll be *popping* down to MacDs tomorrow then

Tony.

 

Thats not actually controlling over-run fuelling though is it? its really not turning the injectors off on over-run

 

Just had a look through the settings.... as Andy says in the Rev/Idle screen there are the options for F/C A.E etc. Nice of them to label it F/C for fuel cut... lol i must be blind.

It actually calls the option deceleration fuel cut recovery. Must play with it a bit more.... i feel like i'm missing so many things now. Good job i'm off work till Friday .

Tony.

 

kinda crafty way of doing it !

 

its the point at which the engine recovers and puts fuel back in, so set to 5000 means it will always put fuel in .. hummmm... might join you on that trip to McD's Tony, along with my top row retarted to 2degrees

 

LOL... what has Andy let the Nova boys in for a McD's . I shall be envy of all Chavs while pop, pop, popping in for a Big Mac

Tony.

 

I find the best flames come from zero degrees of timing on the top row and maximum of 1.496 fuel (its still not a lot of IDC)
Only adjust down to around 2400rpm though as you can drop into the 2nd top row during very light cruise at lower rpm and it will start to interpolate into the top row with some rather odd results

You need a hot exhaust for best results.......

Andy (I promise to grow up soon )

 

exactly how mine is Andy
its very nice if you 'just' touch the throttle on overrun

Steve
(promising NEVER to grow up )

 

Dean

 

you boys need to go outside and make yourselves sick.....

whatever next

 

mine never gets to the lower row before it cuts fuel, so nothing happens. either that or its interpolation makes it only go to something like 20 degrees. need both two top rows low to get any effect

 

change the load numbers for row 1 then

 

I have tried changing the settings in rev/idle t0 5000rpm got a bit more pops but nothing to gr8, Is the other setting described on hear under ACCELARATION then set between 2000-5000 1st colum 0.1 or is this wrong?

 

that setting , if i read it right, is the accelleration enrichment, which just adds fuel as you press the pedal between those RPM levels.

the 'other' setting we were talking about is the IGN advance in the top row. As you get back into 0 load (effectivly) you hit the top row, which is normally very advanced (40+ degrees) and to make it REALLY pop you can set that to 0 across the top row.
BUT dont set it until RPM > 2400 as it will effect the slow running/low load zones. the ones above these are never used except on overrun.

Steve

 

Some pics would be very helpful

 

pics ? err...

well how about this..

top couple of rows from a stnd map, altered to what we were talking about

IGN:
20 35 38 40 42 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
20 35 38 40 42 43 44 44 44 45 45 45 45 45 45 45 45 45 45 45

INJ:
1.000 0.980 0.977 0.973 0.961 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496 1.496
1.039 0.980 0.977 0.973 0.961 0.961 0.938 0.922 0.938 0.977 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000


Steve

 

Cheers mate thats a great help

Banny

 

Is this the setting IGN MAP:TOP ROW 1-20 if scroll accross screen?
Were does it say 2400rpm?

 

if you select a map point and then press the next key it will say the 2400rpm

 

yes, when you go to change it, it shows what load and what rpm cell you are in. you can also then change cells instead of going out and in of that screen IYSWIM...

as standard the cells go 800, 1200 1600, 200, 2400, 2800, etc

p.s. dont blame me if you blow the car up by altering the setting BTW !

 

Tried what u described m8 car hasnt blown up yet
What it has done tho is make it run ike a bag of ****e
Tickover is all over the place and car started to miss on boost
Luckly i wrote down all the old settings,after changing them back car seems to be ok now a very slight misfire in 5th(mite be due to ecu learning) idle is nearly as it was .

Just a theory but will making it overfuel effect the sparkplugs as it felt like fouling on the plugs,which i have experienced b4 then changed plugs bout month ago and grounded car and problem was resolved.

Any1 any ideas on y my car wont take these settings?

 

I also tried the settings and still got nothing, think i will jus go back to the way it was.

 

ha ha ha..

oh well, never mind. it should do it if you 'just' touch the throttle when on overrun as well / to more effect.

if it has mucked up the idle, general running and on boost running, then i think you altered something you shouldn't have

if you wrote down the tables as they looked then post them and mark the cells you changed...

Steve

 

I have only changed the settings described,nothing else has changed

IGN: 6-20 O degrees
INJ: 6-20 1.496

I wasnt having a dig at you just trying to get sum feedback.

 

My car just seemed to smell of fuel, when i started it up. other than that business as usual.
Some subaru's seem more inclined to pop and bang than others. guess its luck if you have one that does.

banny

 

it was all in tounge and cheek mate this is ment to be fun

so was it cells N6-P1 -> N20-P1 that you changed?

they should have been somewhere in the region of 40-45 degrees originally ?

if the car smelt of fuel it could have been hitting those cells, but i highly doubt it as it would have to be reving to 2800+ or just below.

best thing to try is to go onto map watch and see what cells you get when you do rev it. this can also be used to see where its going when you are on overrun.

i have found that you do need to open the throttle a little (just press it) if you havent got the fuel cut off turned up, so you need the ecu to throw some fuel in.

try looking at the map watch and see if you are in the right area

Steve