Honda Earth Dreams turbo motor
 

Probably a tiny turbo built to be emissions compliant and get 30+mpg.
"Exhaust-port passages cast directly into cylinder head (eliminating separate exhaust manifold)" how many other manufactures do this?

Their #1 goal is likely efficiency, not power.

Everyone and their mother, for several years now

good to know

umm most/all? I think this has been established as the way to go.

Also keep in mind that this is probably designed for something like 300k miles, with an idiot driver, and inferior fuel.

And the dumb thing is all these turbo motors only beat the gov't mandated steady state tests, in the real world they typically get worse mpg.

considering you need a microscope to even see the turbo...

that transmission looks larger than the motor itself.

Probably.makes 16.5psi at like 3k and then runs out of puff at 5k. Curious what the torque curve looks like. Most of these new tiny turbo engines I have seen make everything down low and then no HP up top.

Honda hopes and dreams

Probably more like 16.5psi at 1500rpm. The vast majority of people want torque and midrange, thats what makes for a good street engine.

Driving a car that is gutless below 5k and makes it all up top is ANNOYING to drive on the street. Hence my BRZ is now gone and replace with a turbo 6 that makes max twist from 1400-5400 RPM.......but doesn't completely die on the way to the 7k redline.

Yup! I have been loving my M45 just for this reason. 2k, put foot down, 5psi and off we go. It doesn't make any more than that though....

I'm also guessing it runs an atkinson/miller cycle to up the efficiency.

non-Honda turbo 1.6 :dealwithit:

https://cimg7.ibsrv.net/gimg/www.mia...bd7124c2c9.png

On the Hondata website you can see dyno's of stock and remaps.
https://www.hondata.com/flashpro-2016-civic
Click on the dyno tab.

For the last couple of years Lexus has been going over to 2.0L turbo engines for the smaller cars and base models. I recently got a chance to look at some datalogs of how they run. Theyre hitting full boost below 2k rpm and holding it out to ~5k before it starts tapering off. Whats really crazy is that its running stoich in boost up to around 5k rpm before richening up a bit. Were talking roughly 20 psi of boost at 14.7:1 AFR.

EDIT:
Here is a dyno of a stock IS200t vs an ECU flash someone has developed to make it push more boost
Attachment 229474

its called direct injection folks
and I think it's W/A, so somewhat intercooled

Its got a little liquid/air intercooler. Its actually really easy to overlook because the charge pipe runs behind the engine and the intercooler is tucked up under the intake manifold.
Im not sure if its using engine coolant or if it has its own heat exchanger and fluid.

https://dam.lexusasia.com/lexus-v2-b...ntercooler.jpg

I think most of these engines are running port injection under load and only using the direct injection for cruise and light load. Could be wrong though.

I bet the engines do probably have some crazy quench though.

I've no experience with the 200t setup, but judging from their 4s setup on the twins it actually switches in various places/loads if/when needed.

And yeah the way DIT pistons are designed, it's a whole nuther ballgame that doesn't require fat afr to keep it together. way over my head

Yep, at first some of the guys going after big power were plugging the DI ports on the twins because they couldn't figure out the tables and proper way to tune.

Then, like the N55 in my BMW it's DI only. So here in about 5-10k miles I get to do the walnut blasting of the intake manifold.

Until they power a non fail wheel drive car, no one will care

Are you just talking steady state on the highway? Or actually like most people's commutes that go through neighborhoods, surface streets, bumper to bumper traffic, etc?

the new turbo motor in the accord is better. pretty much does what the v6 was doing.

I was curious about the new-gen Accord, particularly since it's still offered with a standard. I stopped by a dealer last week and they actually had one in stock and offered a test drive. I couldn't wail on it, for a couple of reasons:

1. Mechanical empathy precludes me abusing an engine with only delivery mileage
2. It was -20, the roads were still atrocious from a recent snowfall, and the car was on all-seasons

Still, it was an interesting experience, not least because I could row my own. The 2.0 liter engine is a detuned version of the one in the R and it runs on regular gas. Torque down low was little soft, but boost builds quickly and the car pulls strongly through the mid-range. While I didn't redline it, there was no discernible rolling-off of power at the top end. I did notice a bit of vibration at around 2,500-3,000 rpm but couldn't say if it was poor NVH control or a wheel out of balance due to packed snow. The transmission itself was just fine - Honda slick with decent clutch feel.

As for the rest of the car, it was a mixed bag. The "Sport" version (which is what your get if you want a manual) had some interesting variation on cloth seats. It was more akin to the top layer of a wetsuit but it was grippy and will probably wear like iron. The interior design was well done, with a digital dash and a prominent screen perched on the dash (albeit better integrated than most). Back seat room was cavernous - when "sitting behind myself" I had 6-8 inches between my knees and the front seat. Styling was okay, with the most controversial feature being the, uh, prominent front beak. Oh, and it's WWD.

Still, it would be a great cross-country touring car. I'm glad that Honda still offers a standard and I hope that enough people opt for one so that it'll continue in the next generation.

Hey some of us enjoy struggling endlessly with fail wheel drive

if you can stomach how ugly it is.

Toyota and Honda built boring plain cars for so long, they don't know how to keep up with kia and Hyundai -- rofl.

Umm, the toyobaru is not boring

And apparently the new Civic Type R doesn't even need AWD to compete with the Focus RS and all it's fancy drivetrain tricks.

Toyota is also working with BMW on a Supra/Z4 replacment to have a shared chassis.

Not like the old days, but it's coming around.

So exactly what my Fit gets. But with more everything. Sounds nice.