I don't think this would have much effect on the cabin pressure at all. The air supply comes from the engines, and if they can produce enough thrust (=pressure difference between the front and the rear of the engine) to move the plane forward and maintain that level, then they can easily produce the maximum necessary…

Like evil minion said - very low volume (200 of those engines were produced by Porsche in total - which means they'll probably sell only like 5-10 of each part they reproduce), very high quality (it's pretty much a pure race engine, going into either 904 or 356 racecars or, in detuned form, into the 356 Carrera 2…

Four of them, yes. That is four cams, and four shafts driving them. And, of course, dual ignition.

Well, if you think that's expensive, please keep in mind that those are quite complicated engines for their size - four camshafts, four drive shafts (one for each cam), dual ignition distributors - and that they actually went through the trouble of reproducing ALL components from scratch, that is, new casting molds…

Really does make for a nice press statement. Seems the owner of the Capricorn group grew up and studied in the ring-surrounding Eifel region and is/has been an amateur racer (Ferrari Challenge winner in 2000). They have committed to keeping the tourist racing and of course motorsports events going, but seem to be…

Right, energy content is usually the better way to answer the question of fuel consumption, at the very least it will get you in the right ballpark :). The calculation I and KSNiner made above has at least two major variables that need to be guessed, namely the AFR used and the volumetric, or rather, scavenging…

You need to use mass units for AFR, ergo, 1 g of diesel for about 42 g of air - which is quite a different proportion than if you are using volume units like 1 liter of diesel for 42 liters of air, since a liter of air weighs only about 1.3 grams - therefore you'll use about 0.03 g or 0.03ml of diesel (it has roughly…

Have to say, I've flown with Ryanair about a dozen times in the last years, and I've never had anything like this happen to me - closest I've come was a 30-minute delay after snow was falling on Oslo-Sandefjord in March when they weren't sure they'd get permission to take off. Sure, they have crap service, but at…

We're using 230V power grids and cords over here in Euroland (16A fuses -> ~3500W from ordinary mains, thank you very much). They're definitely not thumb-sized, more like 8mm thick. And we got self-winding drums for these things too. It's not exactly rocket science.

You mean, there should be a self-winding power cord drum on those EV filling stations, like on a garden hose?

Is it only illegal when you do it like those guys in the video, noone sitting in the towed vehicle at all? :)

Even worse, the square goes into the formula for the Force, but to calculate the Power needs for any given speed, it's in there to the cubic - meaning that twice the speed means eight times the aerodynamic resistance! If your car needed, say, 150hp to overcome the aerodynamic resistance at 150mph (not including…

Wouldn't have said too heavy - after all, a typical range extender module (which includes the engine and the generator) weighs just about 50-70kg and can easily save about twice that weight in batteries when carrying a couple liters of fossil fuel (which is easily ten times more energy dense, even factoring in ICE…

I'm having the slight suspicion that he might have intended to not show his daughter's face in order to prevent the quite expectable "wow u so hot I want u doing donuts on my c**k" internet reaction. For which portrait mode and crappy res would definitely help.

Oops, misread.

I'd say the weigh saving doesn't warrant the cost increase in most examples. After all, you can't simply replace a steel part with an Al part of the same dimensions, but need a bigger part to compensate for the decrease in strength that Al brings with it. In total, the bigger part made of the less dense Al is still…

Top tip for getting away from Volcanoes: Lava is not your problem, it's slow as hell in most all instances. Take note where the lava is while you're leaving and you won't have a problem. What you really want to get away from is pyroclastic flows, which is clouds of hot volcanic gases mixed with hot rocks and ashes,…

Adblock Plus (free extension/plugin for Firefox and Chrome, and I suppose for other browsers too) with custom filter settings ("*.gif" and "*.GIF"). I'm always impressed by a) how much of a shithole the Internet actually is when I use someone else's computer with no Adblock installed, b) by how people put up with the…

I think you can name lots of reasons why modern roadcars are heavier, but the increase in horsepower is hardly among the top ones. They were getting 845hp from a 3.2l 911 turbo engine (in the 935/78 "Moby Dick" - admittedly, they used watercooled cylinder heads on that thing, so it wasn't exactly your run-of-the-mill…

Thread incomplete without mention of six-wheeled Porsche 928GTS