VEMS and Ford light green injectors roughly at idle

[david]

learn something everyday

[GazzaG60]

anything over what is mapped already needs a map.

with vems its a change of the injector size known as req_fuel.

[david]

anything over 440cc normally need's a remap,ain't it

[GazzaG60]

potential that the light green are 44lb. not quite 440cc but pretty close.

it shouldn't make night and day differences unless othert things chage too.

[GazzaG60]

thanks. i done the ve etc. problem ive found is it needs to be created in the bigger scale SW. otherwise it places things in the wrong registers and causes all sorts of issue.

i got some stuff from peter and from Vas. im lazy. not even seen my car in 2 months. its in the garage.

gonna get this bmw sorted out first then dig her out. i need 2 tyres as i got a puncture in one and put in a curb on the other a while back.

[david]

Hy,

i have since 4weeks an VEMS, got it running to 90%

I drive first the RS2 injectors, but at full boost they run over 100% duty at 1.9bar.
Now i changed to the Ford light green ...588, 440ccm , but the idle is very roughly, not so smooth as with the RS2 ones. At topend they run at 80%, looks o.k. to me.

Is there an other injector option for an smooth idle and better topend performance ?
Or can i change the settings in Vems ?

....the next step is an stroker 2,5l in 1/2 - 1 jear....

Thanks

Thomas

i think those injector's part number ending ...588 are 465cc and not 440cc,that could be the problem.
i've thesame ford light green top injector's.

[Jamo]

It's only the VE that needs rewriting for your current values if your 12x12 quite simple PM me Gazza if you want to know one of the things you need to do to change

[GazzaG60]

its nice to redo things somtimes.

i am 12x12 and just written for the bigger scope. will get it insoon.

i see massive differences in power between 0.7 ans 0.77 or so.

[A80Avant]

i know that the easy way to do it is to just keep the VE map and dial the req until i get my 1.00 lambda on the same VE value on idle, but hey.I like a challenge! Besides, bigger turbo will need new mapping anyway, so i may as well do it right.

if the DC changes or not, not really bothered since i can still hit 0.70 lamda and not have any enleanment. Im sure something is not read right, otherwise if my injectors where reaching their limit, then i should be going lean,which im not.

[GazzaG60]

around 400hp id expect.

id just fit an 044 and some dekka 630cc to avoid going over 80% DC

[Rocco]

talking about injectors and diferent powers....

how many HP power more or less can be used with the 7A 4´2bar FPR + RS2 fuel pump relayed to 14volts and original RS2 injectors (360cc/3bar true?)


thanks masters

[GazzaG60]

not doubting they will work better with the correct settings just doubt it will make a difference to DC.

like i say mine work well with the same settings i had before. from aby to dekka

[Jamo]

Depends on the injectors Gazza, mine work better with 0 ramp up and the injector open time value as supplied by RC

[GazzaG60]

doubt it. either its calculated or actual.

if actual then the injector is full duty and will explian the dip to super rich. i had this at 4k on the standard injectors at 1.2 bar or so. it would dive to 10:1.
if calculated a lower reQ-fuel will change this. if like me you set the injectors at 3 bar then the 100% is not so accurate.

[A80Avant]

the ramp up on the dekas is 280. i have mine set by mark on 192.I will have it changed anyway in the process of the new mapping. Maybe it will fix the over 100% DC as well