Re: OHV Teaser
Posted: Wed Sep 21, 2011 7:58 pm
Engine that produce less power per litre than Daewoo Matiz?
A tycoon game made for people who live and breathe cars.
http://phpbb3.automationgame.com/
machalel wrote:http://www.h1v8.com/page/page/1562068.htm
sparkyplug28 wrote:yeah and a 7.0 litre BMW v10 would blow it away
LS7 also has to be hand built and has a dry sump system much more work and expense than the bmw lump.
also the 6.0 v10 fitted to the new 7 series has 80lb-ft of torque more than the ls7 and is still 1000cc smaller
Fenris wrote:sparkyplug28 wrote:yeah and a 7.0 litre BMW v10 would blow it away
LS7 also has to be hand built and has a dry sump system much more work and expense than the bmw lump.
also the 6.0 v10 fitted to the new 7 series has 80lb-ft of torque more than the ls7 and is still 1000cc smaller
Please... Don't come with the hp/litre argument. It doesn't matter shit in the real world. What matters is how much power you can get out of as a light, externally small, cheap and reliable engine as possible. If BMW built a 7 litre V10, they wouldn't have a car big enough to fit it in.
serothis wrote:Fenris wrote:sparkyplug28 wrote:yeah and a 7.0 litre BMW v10 would blow it away
LS7 also has to be hand built and has a dry sump system much more work and expense than the bmw lump.
also the 6.0 v10 fitted to the new 7 series has 80lb-ft of torque more than the ls7 and is still 1000cc smaller
Please... Don't come with the hp/litre argument. It doesn't matter shit in the real world. What matters is how much power you can get out of as a light, externally small, cheap and reliable engine as possible. If BMW built a 7 litre V10, they wouldn't have a car big enough to fit it in.
hp/liter is a valid measurement. It's a demonstration of a form of efficiency. And it absolutely matters in motorsports, and racing in general, which rank you by displacement. As for the "real world", unless you own a truck/bus/company or actually need a heavy tower/hauler, does anyone actually NEED a massive engine in their car? Anything over 250hp in the real world is excessive.
Fenris wrote:and its higher torque will allow you to use higher gearing than you would in a smaller DOHC engine that revs higher, but have the same peak horsepower. That should in most cases increase both your milage and reliability, with the only downside being you don't get the bragging rights of having the letters D, O, H and C on your plastic engine cover.
PhillipM wrote:Fenris wrote:and its higher torque will allow you to use higher gearing than you would in a smaller DOHC engine that revs higher, but have the same peak horsepower. That should in most cases increase both your milage and reliability, with the only downside being you don't get the bragging rights of having the letters D, O, H and C on your plastic engine cover.
Actually, given the speed limits in most parts of the world, anything over about a 1.4L engine these days has more than enough torque to spare to cruise along a motorway/highway/autobahn in a long enough gear to drop them into the peak efficiency/torque sweet spot. And after that the economy is reliant on throttle opening (more is better as it's less restriction to the engine), and the surface area in the combustion chambers (smaller is better as there's less wasted energy in heat into the block).
On both those, the smaller engine is much better. Which is why manufacturers are going for smaller and smaller engines with high rpms for the power and small turbos to boost the torque and efficiency.
PhillipM wrote:All these little engines haven't done too bad for the past 40-odd years tbh
Fenris wrote:Hehe, I'm more referring to the very small engines with a high power output for their size, those hovering between 1-1,5 litres in displacement while putting out over 100 horses. Taking it to an extreme, you could have a look at the 0.85 litre Fiat TwinAir. Cracking little engine I'm sure, but for how long?