Hi, I try to run sequence injection , but engine not working good, what sequence i must use in vr6?
Ignition sequence is 1-5-3-6-2-4 , my ignition config:
coli0 - cyl 3,
coil1 - cyl 5,
coil2 - cyl 1,
coil3 - cyl 4,
coil4 - cyl 2,
coil5 - cyl 6.
what sequance must be in injection ?
injection A to F ...
perhaps somebody use vems in VR6 ..
thanks
Krzysztof
How are your injectors wired?
A - 1st cylinder ( pin 7 ec 36)
B - 2nd cylinder ( pin19 ec 36)
......
......
F - 6 cylinder ( pin 18 ec 36)
likie this but only 6 injectors
(http://www.phattransmissions.com/VEMSUserManual/ConnectingInjectors8.png)
In that case try:
inj 0 - 4
inj 1 - 16
inj 2 - 1
inj 3 - 8
inj 4 - 2
inj 5 - 32
thanks,
working OK, I reconfigured now ignition order and understand injection sequence,
still got problem with starting engine, some time start , some not , here is my msq , now req_fuel is 5.2ms , 6 injectors x 630cc at 3b , 3000cc engine capacity, can you look at my sequence ?
ignition order 1-5-3-6-2-4
coil 0 - cyl 1
coil 1 - cyl 4
coil 2 - cyl 2
coil 3 - cyl 6
coil 4 - cyl 3
coil 5 - cyl 5
in0 - 4
in1 - 16
in2 - 1
in3 - 8
in4 - 2
in5 - 32
http://gto.dg-group.pl/megasquirt_GTOBB.msq (http://gto.dg-group.pl/megasquirt_GTOBB.msq)
Is it sometimes 180 degrees out?
what you mean 180deg out ??
Sorry, I should have been more specific - does it seem that the ignition is sometimes 180degrees out? So its igniting the charge in the exhaust?
yes, hear detonation in exhaust , some time when cranking try starting - rpm go higher to 400-500, next hear detonation.
Quote from: GTOBB on July 23, 2008, 08:56:32 AM
still got problem with starting engine, some time start , some not , here is my msq , now req_fuel is 5.2ms , 6 injectors x 630cc at 3b , 3000cc engine capacity, can you look at my sequence ?
ignition order 1-5-3-6-2-4
coil 0 - cyl 1
coil 1 - cyl 4
coil 2 - cyl 2
coil 3 - cyl 6
coil 4 - cyl 3
coil 5 - cyl 5
in0 - 4
in1 - 16
in2 - 1
in3 - 8
in4 - 2
in5 - 32
http://gto.dg-group.pl/megasquirt_GTOBB.msq (http://gto.dg-group.pl/megasquirt_GTOBB.msq)
Your ignition sequence is messed up I think. Also cranking figures are messed. No way to start it.
ok, i adjust corectly ignition now:
ignition injection
coil 0 - cyl 4 0 -> 4 injection 3cyl
coil 1 - cyl 2 1 -> 16 injection 5cyl
coil 2 - cyl 6 2 -> 1 injection 1cyl
coil 3 - cyl 3 3 -> 8 injection 4cyl
coil 4 - cyl 5 4 -> 2 injection 2cyl
coil 5 - cyl 1 5- > 32 injection 6cyl
right now?
Injecting onto a closed valve is best, best yet is to inject onto the valve of the firing cylinder - why? Because the fuel will have plenty of time to evaporate on the back of the hot valve. This allows the fuel to mix well with the rest of the air and the fuel will burn correctly.
ignition injection
coil 0 - cyl 4 0 -> 8 - cyl 4
coil 1 - cyl 2 1 -> 2 - cyl 2
coil 2 - cyl 6 2 -> 32 - cyl 6
coil 3 - cyl 3 3 -> 4 - cyl 3
coil 4 - cyl 5 4 -> 16 - cyl 5
coil 5 - cyl 1 5 -> 1 - cyl 1
ok, try it, i find this in vr6 manual:
(http://gto.dg-group.pl/vr666.JPG)
Cool, thats for the OEM system which has phased sequential injection. If you choose to inject when the valve is open you have a very specific window of oppotunity, which changes with engine speed. Tuning this would be massively difficult for those of us without emissions testing equipment, so the fixed injection timing solution was chosen.
The question of weather phased sequential injection gives more power or not is much argued, some say it makes no difference, others say that it makes a few %, the difference in emissions is significant, which for the motor manufactuers makes it much more important.
Did you get this running okay?.
I might have a VR6 Turbo to make soon, this is the old VR6 version, that runs a distrubitor, so i hope that this will be easy to get running great..
/Skassa
YES is running Ok , now is 1.2bar boost , in future we up to 1.6 , now tial spring is too weak
i got only dark video
http://pl.youtube.com/watch?v=VJTv8f1feaE (http://pl.youtube.com/watch?v=VJTv8f1feaE)
Nicely done ;D
Yep,
sounds great.
I hope to get to make one soon, this is currently running a T70 Ebay turbo, that on 4age engines make around 600hp at 2bar,
so i hope it will get fun on the VR6 also :)
/Skassa
Just a side note,
Is the VR6 running a hall or a vr sensor??
Thanks,
Skassa
I have just been out doing the final mapping of the VR6 turbo, and itÃ,´s going really well on 1,5bar of boost, running the injectors to 110procent dc,on 6pcs of 440cc injectors,so the fuel pressure needs to be upped. ::)
But imust say that this engine feels really nice and smooth with a turbo at that size, and there must be a bit of power, when looking at the inj DC.
/Skassa