Piston Slap: Less Slap, More (oil) Control

Pete writes:

Hey Sajeev, I got one for you.

Several engines nowadays are set up to operate on half their cylinders under light-load conditions. Would the design considerations for piston rings vary from those normally used for such cylinders that are only used part-time? The question arises in the context of a 2009 V6 Accord that is currently in the Honda dealer’s shop to have the piston rings replaced at the manufacturer’s expense to cure a continual oil consumption and spark plug fouling problem.

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  • DenverMike Pininfarina I know it's not related to this, I just like saying it.
  • Matt Posky I don't understand the appeal of fake meat and this seems to operate under a similar premise: You don't want the V8 because someone says it's bad for you. But you can have something designed to mimic the experience because that's what your body actually wants. The styling is cool I guess. But I don't understand why EVs don't just lean into what they are. Companies can make them produce any wooshing or humming noises they want. Buiding an entire system to help you pretend it still has a combustion engine seems a little lame.
  • DenverMike I'm sure it would have a volume control. It's nice to sneak into my neighborhood at 2am quietly. Or creep out, 4am. I don't get much sleep OK, but I always keep my V8 exhaust stock, as much as I love the sound of others loud. My stereo would make it pointless anyway.
  • FreedMike I’d love to see more tracks, or off-road parks if that’s your jam. But for those of us who’d love to take part in this kind of thing, practicality is the limiting factor. Racing has always been expensive, and most people don’t want to do it with their daily drivers - I’d love to see what my GLI would do on a track, but not at the cost of voiding my warranty, or potentially wrapping up the car (which I’m pretty sure would put me on State Farm’s Keith Moon-trashing-the-Holiday Inn list). As a practical matter, you have to have a vehicle that is intended to be used for racing, and the ability to fix it; most folks don’t have that kind of money or skill set.
  • Dukeisduke Oh, so it *is* a hatchback. Last night, I watched the replay of the reveal with Tim Kuniskis presenting the car, on Instagram. A "fly-through" of the car on the pre-rollout video made it look like they were going through an open hatch, so it had me wondering. The car attracted a lot of negative comments on IG, on feeds of guys who were there live.This is probably the least "electric car" electric car.