VEMS and Ford light green injectors roughly at idle

[GazzaG60]

req_fuel is how long the injector opens to achieve 14.7:1 a bigger injector takes less time to give that much fuel so req_fuel needs to be lower.

The VE of the engine hasn't changed so no changes should be needed however you may find slight changes are needed.

fords should have the same settings as the audi. same maker.

[Jamo]

Hy,

no i didn't change the req_fuel, i changed the VE table to this injectors...

Yesterday i changed the fuel regulator from 4,2 to now 3bar, not realy better yet...

@ Jamo, did you use the light green injectors too ?


Thomas

No i've got RC Injectors

You need to change the req_fuel I would say because your values hasn't been changed your pulsewidth is too high at idle.

Have you logged your idle and looked at the values in comparison to what it was with the old injectors?

[A80Avant]

you first need to change the reg_fuel, then VE table.

[th.b.w.]

Hy,

no i didn't change the req_fuel, i changed the VE table to this injectors...

Yesterday i changed the fuel regulator from 4,2 to now 3bar, not realy better yet...

@ Jamo, did you use the light green injectors too ?


Thomas

[Jamo]

Have you changed req_fuel?

You'd be better to head over to www.vems.co.uk and look at the injector modelling posts.

Depending on your firmware it maybe down to voltage compensation etc. I found the same and emailed RC for the injector deadtime settings. Since using these values it has been better

[GazzaG60]

did you change the req fuel when fitting them or just slap um in.

[th.b.w.]

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