amehel0 wrote:oh yeh. do you think that the diesel crank(4D56) is stronger then the 4g54 one even though the 4g54 one is drop forged?
The 4D56 crank is also forged and while the machining 6mm off the mains would negate some of those benefits, it will be shot peened before use, this will help.
Also, the bigends are closer to the mains and in theory, this should allow it to handle a more torque with less deflection.
amehel0 wrote:... also are you just using the standard diesel conrods or aftermarket?
I wouldn't use the diesel rods, they will most likely be too heavy for a N/A build.
Standard 4G54 rods (properly prepped) will handle almost anything a N/A build will throw at it.
That said, I'm going with a set of forged H beams, mainly for the weight reduction.
Because of the dramatically reduced counterweights on my crank, it will need light rods and pistons to help offset what has been removed (my crank started at 18.7kg but now weighs 14.7kg).
The Forged rods are around 25% lighter than the factory rods, and the forged pistons, 20% lighter than standard, that alone should allow the engine rev quickly and reduce the peak loads on the bearings at low rpm's
amehel0 wrote:man hope to see the high comp engine running soon!
As this is going to be in a daily driven vehicle (along with a few motorkhanas, khanacross, etc...) , I want it to last a while so I'll spend a little more time getting everything 100% (or correctly interpreted as lazy and usually unmotivated).
Cheers.