Moin, Moin
vermutlich wisst Ihr das unser 5.7 Hemi im 300C ein Motor der 3. Hemi-Generation ist. Allerdings dürfte es den meisten entgangen sein, das ab 2009 der Motor doch recht umfangreich überarbeitet worden ist. Diese Revision trägt die interne Bezeichnung "Eagle" Da ich mit meinem Auto selber "betroffen" bin habe ich hier ein wenig nachgeforscht.
Wiki schreibt darüber: "2009 Revisions, 5.7 Eagle
Chrysler has made various revisions to the 5.7 L for the 2009 model year. The first for all applications is what Chrysler calls Variable Camshaft Timing or VCT. VCT (which is essentially variable valve timing) uses an oil control valve which controls oil flow to a unique camshaft sprocket which contains a phasing device, which depending on the operation of the oil control valve either advances or retards camshaft timing.
Cylinder heads have been revised to increase flow. Though the intake manifold has also been changed on all applications, it is however model specific. Dodge Ram, non-Hybrid Electric Vehicle (HEV) Chrysler Aspens, and non-HEV Dodge Durango utilize an active intake manifold with a short runner valve to optimize torque and horsepower. At lower engine rpm the valve is closed, resulting in improved low-end torque from the longer runners. At higher engine rpm the valve is opened, diverting the incoming air into the center of the manifold. The shorter runners results in improved horsepower. Passenger cars, Jeep vehicles, as well as HEV Chrysler Aspen and HEV Dodge Durango do not use this manifold; instead, these vehicles utilize a passive intake manifold, which does not have a short runner valve.
Six-speed manual transmission and all Heavy Duty truck applications will differ by not having the Multi-Displacement System (MDS). The new version of the 5.7L has five different camshaft profiles. All will have VCT.
Power Numbers [15][16][17][18]
Mehr findet sich dann noch in diesen Artikel:
The 2009 Hemi was extensively modified to increase both power and gas mileage; it included a higher compression ratio, better-flowing heads, intake, and exhaust, and an active intake manifold. The active intake, previously used on the 3.5 liter V6, takes advantage of Chrysler advances in the 1960s; it switches from long runners to short runners by moving a flapper door, to switch from better torque at low engine speeds to higher horsepower as rpms rise.
The new variable valve timing system used hydraulic cam phasing, relatively simple and inexpensive. The hydraulic roller camshaft had oil passages in front to drive the cam phaser sprocket, and increase valve lift. A new piston/rod assembly had thinner walls with a stronger-alloy pin.
The ports were redesigned, with a raised exhaust floor; new intake valves were 2mm larger. Other upgrades were a stronger crankshaft, dual-mass crankshaft damper, floating pin pistons, new valve springs, and higher oil pump capacity. The results were better reliability and gas mileage, with more horsepower and torque at every point in the engine’s speed range. oh2o had predicted variable cam timing in mid-2007. Redriderbob correctly predicted an updated MDS system in May 2007.
Mich würde es freuen, wenn sich hier ein paar weitere 5.7 Piloten finden um sich ggf. über diese Motorvariante auszutauschen.
Abschließend noch ein Link zu dem vollständigen Bericht über die verschiedenen Hemi-Varianten, allerdings auch in Englisch.
Beste Grüße aus der Heide vom Magister-Ludi der sich freuen würde von Euch zu hören
vermutlich wisst Ihr das unser 5.7 Hemi im 300C ein Motor der 3. Hemi-Generation ist. Allerdings dürfte es den meisten entgangen sein, das ab 2009 der Motor doch recht umfangreich überarbeitet worden ist. Diese Revision trägt die interne Bezeichnung "Eagle" Da ich mit meinem Auto selber "betroffen" bin habe ich hier ein wenig nachgeforscht.
Wiki schreibt darüber: "2009 Revisions, 5.7 Eagle
Chrysler has made various revisions to the 5.7 L for the 2009 model year. The first for all applications is what Chrysler calls Variable Camshaft Timing or VCT. VCT (which is essentially variable valve timing) uses an oil control valve which controls oil flow to a unique camshaft sprocket which contains a phasing device, which depending on the operation of the oil control valve either advances or retards camshaft timing.
Cylinder heads have been revised to increase flow. Though the intake manifold has also been changed on all applications, it is however model specific. Dodge Ram, non-Hybrid Electric Vehicle (HEV) Chrysler Aspens, and non-HEV Dodge Durango utilize an active intake manifold with a short runner valve to optimize torque and horsepower. At lower engine rpm the valve is closed, resulting in improved low-end torque from the longer runners. At higher engine rpm the valve is opened, diverting the incoming air into the center of the manifold. The shorter runners results in improved horsepower. Passenger cars, Jeep vehicles, as well as HEV Chrysler Aspen and HEV Dodge Durango do not use this manifold; instead, these vehicles utilize a passive intake manifold, which does not have a short runner valve.
Six-speed manual transmission and all Heavy Duty truck applications will differ by not having the Multi-Displacement System (MDS). The new version of the 5.7L has five different camshaft profiles. All will have VCT.
- Active intake with MDS
- Active intake without MDS
- Passive intake with MDS
- Passive intake without MDS
- HEV Application (modified version of passive intake with MDS)
Power Numbers [15][16][17][18]
- 300C: 363 hp (271 kW), 394 lb·ft (534 N·m)" (aber auch als 375 PS Variante)
Mehr findet sich dann noch in diesen Artikel:
The 2009 Hemi was extensively modified to increase both power and gas mileage; it included a higher compression ratio, better-flowing heads, intake, and exhaust, and an active intake manifold. The active intake, previously used on the 3.5 liter V6, takes advantage of Chrysler advances in the 1960s; it switches from long runners to short runners by moving a flapper door, to switch from better torque at low engine speeds to higher horsepower as rpms rise.
The new variable valve timing system used hydraulic cam phasing, relatively simple and inexpensive. The hydraulic roller camshaft had oil passages in front to drive the cam phaser sprocket, and increase valve lift. A new piston/rod assembly had thinner walls with a stronger-alloy pin.
The ports were redesigned, with a raised exhaust floor; new intake valves were 2mm larger. Other upgrades were a stronger crankshaft, dual-mass crankshaft damper, floating pin pistons, new valve springs, and higher oil pump capacity. The results were better reliability and gas mileage, with more horsepower and torque at every point in the engine’s speed range. oh2o had predicted variable cam timing in mid-2007. Redriderbob correctly predicted an updated MDS system in May 2007.
Mich würde es freuen, wenn sich hier ein paar weitere 5.7 Piloten finden um sich ggf. über diese Motorvariante auszutauschen.
Abschließend noch ein Link zu dem vollständigen Bericht über die verschiedenen Hemi-Varianten, allerdings auch in Englisch.
Beste Grüße aus der Heide vom Magister-Ludi der sich freuen würde von Euch zu hören
Freue mich schon sehr auf Deine Erfahrungen. Ich war selber mit dem meinem vor rund 3 Wochen bei Kraftwerk. Kompressor gab es für Deinen Meinen allerdings (noch) nicht. 
du interessierst dich auch für unsere Motoren, gefällt mir 
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