-
5th November 2018, 08:35 PM
#1
Injection Systems
probably a dumb question for those in the know but I am wondering if the early GU direct injection engines are "common Rail" or is it just after a certain year?
I believe that common rail gives better power but at the expense of economy, and I would rather have the latter.
thanks in advance.
-
-
5th November 2018 08:35 PM
# ADS
Circuit advertisement
-
5th November 2018, 10:01 PM
#2
Originally Posted by
Orcrist
probably a dumb question for those in the know but I am wondering if the early GU direct injection engines are "common Rail" or is it just after a certain year?
I believe that common rail gives better power but at the expense of economy, and I would rather have the latter.
thanks in advance.
Different setups. Direct injection is as it states. You have the injector pump, injector lines then injectors. Common rail, have a fuel rail, in between the injector pump and injectors. Im not up to speed with these but I think the fuel rail is what controls the fuel delivery pressures to the injectors, where on a Di, the injector pump does all this. The injector pump on the CRDs pump the fuel through to the rail and injectors at a much higher pressure than a direct injection motor, hence giving a slightly better power delivery and better fuel economy.
-
-
5th November 2018, 10:28 PM
#3
Patrol God
Direct injection is where the pump has 4 direct individual outputs to each corresponding injector ...
Common rail pump has only one output.
It pumps fuel into a common chamber ( kind of like a tank on a air compressor) " rail" and then from there , there are 4 individual lines all at rail pressure to injectors. Injectors are then controlled and cracked electronically.
Crd pumps are way simpler and therefore a lot cheaper too than Di pumps.
Sent from my SM-N920I using Tapatalk
-
-
7th November 2018, 03:59 PM
#4
Great info, thanks for that mudski and Hodge.
-