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Old 09-01-2020, 11:05 AM   #751
JP Chestnut
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Quote:
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I have yet to drive a small turbo with no lag, and very noticeable. Agree on the strong early torque though. That is actually what makes the lag more noticeable.


Hey, am not knocking the turbos. Just pointing out the diff. I suspect though on drag race, the 185 hp N/A will beat the 175 turbo.
I haven't heard too many complaints about turbo lag on modern small turbo engines (like the Honda 1.5T). The real issue is they have the power band of a truck engine -- power falling off a cliff at 5000rpms doesn't make for a fun driving experience.
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Old 09-01-2020, 12:41 PM   #752
neg_matnik
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Quote:
Originally Posted by R P View Post
I have yet to drive a small turbo with no lag, and very noticeable. Agree on the strong early torque though. That is actually what makes the lag more noticeable.


Hey, am not knocking the turbos. Just pointing out the diff. I suspect though on drag race, the 185 hp N/A will beat the 175 turbo.
In the end, at sea level, it's all a wash.
It's 185 PS (182 hp, not 185 hp) vs 177 PS (175 hp) all going into a CVT drivetrain (a.k.a. the Great Equalizer ).
The crank power "gap" is less than 5%.
At elevation, I'd take CB18 all day regardless of power delivery.
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Old 09-01-2020, 01:40 PM   #753
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Quote:
Originally Posted by JP Chestnut View Post
The real issue is they have the power band of a truck engine -- power falling off a cliff at 5000rpms doesn't make for a fun driving experience.
Ugh, VA WRX = this.
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Old 09-01-2020, 02:47 PM   #754
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It needed a turbo to obtain lean burn. Mazda uses a lindholm compressor, Subaru a real small turbo. I hoped they would use 4 direct and 4 indirect injectors but they use only 4 direct. So the turbo is there to obtain the swirl. When there is only a low load, it can go up to lambda 2.
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Old 09-07-2020, 08:16 PM   #755
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Old 09-07-2020, 08:26 PM   #756
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Who was drunk when they edited that. I was thinking I could have an epileptic seizure and I am not at risk for one. Those responsible for that editing should be sacked.
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Old 09-07-2020, 08:35 PM   #757
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They tried to get Top Gear, but ended up with ... crap.

--kC
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Old 09-07-2020, 09:38 PM   #758
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boner unfazed. shrug. thank 2chaino.
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Old 09-07-2020, 09:50 PM   #759
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Salesman*Slaps the hood of Levorg* You know how much understeer you can fit in this thing...

Now with 75% more under spoiler
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Old 09-08-2020, 03:48 PM   #760
dwf137
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yet it still comes with a cvt... fail.

did anyone else catch the "carbon fiber" fingernail scratch guards under the handles @ 1:02? Because PPF wasn't cool enough, they made it out of CF....
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Old 09-08-2020, 04:03 PM   #761
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The carbon fiber door handle protector thingies have been around for a few years. I actually have a set coming in tomorrow. *bling bling*

Edit: They came in today! Uncle Rico is happy.

Last edited by chanomatik; 09-08-2020 at 06:25 PM.
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Old 09-08-2020, 11:01 PM   #762
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The carbon fiber door handle protector thingies have been around for a few years. I actually have a set coming in tomorrow. *bling bling*

Edit: They came in today! Uncle Rico is happy.
you know we can't afford the fun pack. What, do you think money grows on trees in this family? Take it back! And get some Pampers for you and your brother while you're at it.
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Old 09-09-2020, 12:01 AM   #763
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Quote:
Originally Posted by chanomatik View Post
The carbon fiber door handle protector thingies have been around for a few years. I actually have a set coming in tomorrow. *bling bling*

Edit: They came in today! Uncle Rico is happy.


just seems so... extra.

are you going to ppf the cf, so it doesn't get scratched?
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Old 09-09-2020, 04:20 AM   #764
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Quote:
Originally Posted by Pre View Post
you know we can't afford the fun pack. What, do you think money grows on trees in this family? Take it back! And get some Pampers for you and your brother while you're at it.
Actually lol'd
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Originally Posted by dwf137 View Post


just seems so... extra.

are you going to ppf the cf, so it doesn't get scratched?
That's what I thought too when I first saw it! It's only $50, so I figured why not? I'm gonna wash the car and take a pic to share later. I also got carbon fiber pillar trims incoming. Someone tried buffing the black plastic pillar trim once and it's never looked good since. Hopefully it doesn't look too tacky as I'm not the craziest fan of carbon fiber. Only when it's tastefully applied.
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Old 09-18-2020, 12:26 PM   #765
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Will need translation, but more pics of CB engine.

https://motor-fan.jp/tech/10016408
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Old 09-18-2020, 12:47 PM   #766
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Quote:
The FB16 appeared in 2010. It is a new generation engine that has a long stroke at a stretch from the big bore and short stroke that had been a feature of Subaru BOXER until then.

As you know, the horizontally opposed engine has a larger overall width than the in-line or V-type, so it is difficult to extend the stroke to increase the displacement for the convenience of mounting. However, with a big bore, not only is the cooling loss large, but the head cannot be made compact, which is disadvantageous for fuel efficiency and weight reduction, so it does not follow the trend required for today's engines. In replacing the EJ type, which has been Subaru's main engine for a long time, the FB type has taken the plunge and swung to a long stroke. After that, scale-up versions of NA 2.0 liters and 2.5 liters appeared for the FB type, but with the appearance of the first Levorg, the series' first supercharging and specifications with direct injection were developed.

The purpose of the FB16DIT is to take on the class where NA2.5***8467; was previously listed, and the theme is to improve fuel efficiency. It aims to exceed a cruising range of 1000km by cruising at 100km / h. In addition, it is also noteworthy that it is a regular gasoline specification with high demand because it is a domestic exclusive model.

Although it is the contents, from the NA specification that was the base, we have made a major modification that almost all except the crankshaft is newly raised. As the combustion pressure has increased by 20% or more, the rigidity of the cylinder block has been increased by making the open deck cylinder semi-closed. Knock sensors, which were installed only in one bank, are installed in both banks as a response to knocking that becomes severe due to turbo conversion. Strengthening of parts that directly receive combustion pressure, such as connecting rods and piston pins. In addition, we focused on high torque support and resistance reduction by performing complicated tuning such as wrapping of sliding parts.

Regarding direct injection, it seems that there was a way to use the D-4S with direct injection and port injection used in the BRZ FA20, but the most important thing in direct injection turbo was how to control the intake flow. It seems that it was not necessary to use the high-cost D-4S because it was enough to adopt direct injection to achieve the purpose. When the supercharged engine has a high compression ratio of 11.0 and regular gas specifications, what should be done to prevent knocking? Surprisingly, the EGR cooler alone can clear a considerable part.

In addition to the FB16DIT, the Levorg was also equipped with a 2.0***8467; turbo FA20DIT. This has already been adopted for Forester, but there is a question "Is FA20 really the base?", So when I hit it against the developer, it inevitably became a bore 86 mm to aim for high output, and the bore & Since the stroke is different from FB20, it was just named FA due to a problem in notification, and the technical content was closer to FB than FA.

By the way, the FA20DIT has the same bore pitch as its predecessor, the EJ type, even though the bore diameter has become smaller. There may be production reasons, but the margin is devoted to thickening the crank web. This means that the crank rigidity will increase without any correction, and even if the output is increased by 50% compared to NA, the crank can be diverted.






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Old 09-18-2020, 04:39 PM   #767
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Is that the translated story above? It talks about the FB16 and no mention of the CB18. Perhaps I missed something and am just confused.
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Old 09-18-2020, 04:45 PM   #768
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It is.


Quote:
Internal Combustion Engine Super Basic Course | Then, what kind of engine is Subaru FB16DIT? Features of CB18 predecessor
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