Thread: VH45DE Pistons in VE

^x 2!

You got that backward. Have you even seen a 1.6 crank or rods? The 1.6 has a shorter sweep/stroke and longer rods than the 2.0. Therefore, the 1.6 would have less stress on the bottom end at the same rpm than the 2.0.

Ask Derm about.

Dre, I would assume this motor would be equipped with a stronger rod. So the extra weight of this piston would cause a lets say a Eagle rod to fail?

Like Cliff mentioned the rist pin may take more straing. Hell such a big bore motor would revving it to 9500 RPM's be a smart thing?

its the shorter sweep that makes the angular load have mores pressure on the bottom of the sweep and the height of the sweep.As the change of angle in the sweep is shorter - the load doesnt have as much time to be trasnferred or absorbed.

Load on the crank isn't a big issue, the crank can take it. I would be worried about the short rod on a 2.0 and the piston's side load.

Regardless of the throw, piston speeds are much much lower on the 1.6 crank and therefore would have a lot less stress. Piston speeds play a much larger role in reliability and power in the high rpm. Though harmonics will show a quicker spike in load, there is less load overall. It's just being dispersed over a longer period.

But like I said, this small load that the crank experiences is going to, more than, offset by the slower piston speed.

^All in all, what are you trying to say? It's not gonna work, or it's not gonna last long?

Is this the motor that got started this week??

No, It's actually my 92x92 VE

Alright, so did you get to assemble the 93mm block ?

very well stated and respected statement