Nubile Hillock posted:

Not sure if this is awesome car poo poo exactly, but I saw a dude's 500cc Sears lawn tractor. Motor came out of a Honda bike. Youtube flipped my video though



https://www.youtube.com/watch?v=zDhFS9zor6M

Slavvy posted:

What I find most amazing about these is that in a cost-no-object shoot-for-the-moon environment with all the carbon fiber this and exotic alloy that, it still has a distributor. Kind of like yamaha running carbs on their early motogp bikes but with even less explanation.

El Scotch posted:

So I ended up behind this recently:

Godholio posted:

It's like he went searching for the least surface possible.

IOwnCalculus posted:

Fun thing is to watch the tough truck challenges where sometimes they end up putting a shitload of heat through that brake and lighting it up like a racecar.

Don't you also get some advantage by braking before the axle gear reduction?

mekilljoydammit posted:

Let's see, that's 1981? I'd have to check some sources when I get home, but I think at that point they were still running mechanical fuel injection because they didn't yet have it figured out how to make EFI cope with fuel delivery requirements. There was actually a time when it was still all of the mechanical fuel injection parts with just a computer controlled stepper motor to move the fuel delivery rack.

Geirskogul posted:

My 1979 CB 650 has CDI.

My 1988 Oldsmobile had CDI.

My 1998 CRV has a distributor.

DoLittle posted:

My Summer Car on Steam Greenlight!
http://steamcommunity.com/sharedfiles/filedetails/?id=651939391

DoLittle posted:

My Summer Car on Steam Greenlight!
http://steamcommunity.com/sharedfiles/filedetails/?id=651939391

Slavvy posted:

All of the distributor equipped cars people have mentioned have CDI packaged in the distributor which is undoubtedly what that F1 engine had (albeit with fixed advance like you say). My point is that a wobbly mechanically driven shaft, an air gap the spark has to jump across and long plug wires are really inefficient compared to individual coils and the jump from a basic CDI to individual coils is almost entirely a matter of cost (which is why cars didn't get it until recently). That wouldn't be a problem in f1. The electronic aspect of it is so dirt simple that if you already have CDI in a distributor I can't think of any reason you wouldn't just go straight to COP or, at the very least, individual coils with short leads like an LSx. It's just a handful more wires.

Geirskogul posted:

Doesn't the "d" stand for "distributorless"? They have electronic ignitions, sure. But not CDI. There's still a mechanical thing moving spark around.

You're thinking we're arguing about points, which I don't think we are.

DoLittle posted:

My Summer Car on Steam Greenlight!
http://steamcommunity.com/sharedfiles/filedetails/?id=651939391

quote:

I am making this game because this game needs to be made. This is not made because this is fun game, but because it is NOT!

eberbs posted:

check out the chooch from this russian radial engine

https://youtu.be/RW-G7pF6gUQ?t=2m24s

Bape Culture posted:

It's not a car but it's certainly car related...
http://www.rightmove.co.uk/new-homes-for-sale/property-61046114.html
The best house I have ever ever seen. I wish I were a little rich boy then race driver 😰

mekilljoydammit posted:

.


Capacitive discharge ignition. Instead of ignition coil building a field and then collapsing it to make a spark, you have a capacitor dump into a field which just acts like a stepup transformer. Charges a lot faster.

quote:

The first vehicles to be equipped with GPFs will start rolling out of production lines in June 2017 with the Volkswagen Tiguan’s 1.4 liter TSI engine and the Audi A5’s 2.0 TFSI motor. After that beginning, the company intends to implement the filters with additional models and subsequent engine generations. By 2022 as many as seven million VW Group vehicles could have GPFs annually, the company said.

Claiming that direct injection gasoline engines with GPFs could reduce particulate emissions (soot) by as much as 90 percent, VW’s head of group research and development, Dr. Ulrich Eichhorn said, “Following increases in efficiency and lower CO2 output, we are now bringing about a sustained reduction in the emission levels of our modern petrol engines by fitting particulate filters as standard.”

quote:

A investigation carried out on VW's new GPF systems found that soot emissions increased tenfold over baseline.

88h88 posted:

So it has a filter, what happens to all the shite it collects?

Rigged Death Trap posted:

A year from now:

Killstick posted:

It collects untill you get a CEL then you go (limp mode of course) to your local VW dealership to get it replaced for the low price of 1499$.

Sagebrush posted:

Do gasoline engines even make enough soot for a particulate filter to matter? When was the last time you were walking around your gas car and were like "drat, there's a lot of soot around the exhaust pipe, I should clean that off?"

Sagebrush posted:

Do gasoline engines even make enough soot for a particulate filter to matter? When was the last time you were walking around your gas car and were like "drat, there's a lot of soot around the exhaust pipe, I should clean that off?"

Sagebrush posted:

Do gasoline engines even make enough soot for a particulate filter to matter? When was the last time you were walking around your gas car and were like "drat, there's a lot of soot around the exhaust pipe, I should clean that off?"

quote:

Cutting particle emissions

The GDI particulate problem can be mitigated in many ways, of course, but probably the most brute-force approach is Audi’s dual PFI/GDI system which it introduced at the 2014 North American International Auto Show. The plug-in hybrid concept features a primary GDI supplemented with indirect-injection PFI to lower particulate output during part-load operation enough to meet Euro 6 limits.

Another straightforward measure is aftertreatment—to mimic diesel engines and install gasoline particulate filters. Henry said that filters have been shown to lower PN emissions by 80% to 90% and meet Euro 6 limits. It’s no surprise that carmakers have so far avoided filters, which would add additional costs (around $50 to $100 per vehicle) and may reduce engine efficiency.

Although "green" critics call the alternative approach, so-called “engine management” methods, unreliable compared to exhaust filters, most OEMs and component suppliers expect that combustion design and engineering changes will prove more cost-efficient and eventually equally effective.

Technology managers at Bosch and Delphi indicate that new ultra-precision, non-thermal laser drilling techniques for making injector nozzle holes that deliver fuel in a more ideal fashion will greatly improve future GDI systems. Specialists will steadily optimize injector timing, targeting, metering and atomization as well as the point of injection to achieve this goal. Higher injection pressures will also contribute, they said.

Other potential solutions might be found in low-temperature combustion and cooled-EGR (Exhaust Gas Recirc) concepts that can cut GDI particle emissions as can using more ethanol in the gasoline which adds oxygen that inhibits soot formation, Henry said.

Maricq said that he expects that the GDI particulate problem will eventually yield to such measures as modified fuels or multiple injections per cycle, "which theoretically lets you tune when the fuel gets in there, so not too much gets there at once.”

“But it’s still early days,” he cautioned. “We don’t yet have a good handle on all the factors, all the knobs that engineers could turn, at least enough for us to confidently choose the sweet spot for addressing the problem.”

Powershift posted:

Sagebrush posted:

I think I'm just going to skip over all that garbage and keep driving my old cars with one catalytic converter (and my motorcycles with straight pipes through to the muffler) until electric becomes viable.

Slavvy posted:

My plan is to keep hoarding 90's cars and 2000's bikes until they stop selling petrol,

xzzy posted:

Buy a barn and make sure they can all fit over one lane bridges.