December 23, 2024

1.5T does not have VTEC, also dare to call Honda engine?

If a Honda engine, VTEC is missing, what will happen? First of all, I feel disappointed, it must be the gang of Honda! And now, it is already a fact that Honda will have a VTEC TURBO 1.5T engine made in China and will not have VTEC!

VTEC is Honda's variable valve lift system, and it is also their housekeeping technology. VTEC is absent from the 1.5T engine. It's a bit weird to know. In the days of natural inhalation, this technology was deified by many people. What is the reason to omit it?

Castration with Chinese characteristics?


Then, the sunspot was definitely out of the picture, saying that Honda had also made a cut version in China. In fact, the VTS is not only used in China, but also in the US, the 1.5T engine used in the 10th-generation Civic that is already available in the US. There is also no VTEC. In other words, the Honda 1.5T engine has no VTEC.

Seen from the camshaft, VTEC has gone

VTEC mechanism on the L15B2 engine used in Fit


However, the fact that the technology is not castrated does not mean that its motive power has not been castrated. The maximum power of the US version of Civic can reach 176 horsepower. After being made domestically, it is estimated that it will be reduced to about 150 horsepower, but it will not be sprayed first. The 1.5T engine power used by Jed RS sold in Japan is only 150 horsepower, and it has not been reduced. Besides, domestic oil products are understood by everyone. , unless you are willing to add 98 petrol every day.


Cost is necessary


The Honda engine always likes to do something that you didn't expect. The engine before 1.3L, 1.5L, 1.8L, or even 2.0L was actually used by SOMO (single overhead camshaft). The move was considered a technical retrogression at the time.

From the figure, there is no actual exhaust manifold


However, the power and fuel economy of these engines are well-balanced and they can also save costs. Moreover, the cylinder head integrated exhaust ports were used very early, in order to allow the three-way catalyst to reach operating temperatures faster to meet emission standards.


This time on the 1.5T engine, the VTEC is omitted. Naturally, it can save costs, fewer parts, production costs can be reduced, and the cost of future maintenance can also be reduced.

Deliberately leave one hand and upgrade later


The VTC variable valve timing technology is not omitted, but it has both intake and exhaust. This technology cannot be used in previous SOHC (single overhead camshaft) engines. In fact, the application of VTC variable valve timing technology is more practical, easier to operate, and more widely used than the deified VTEC. However, if the two are combined, the effect will be even better. Fitting a 1.5-liter naturally aspirated engine on the Fit is the best proof.

Again, this may be a strategy of Honda, intentionally left behind. Honda announced in 2013 that the 1.5T engine can reach more than 200 horsepower! Obviously, the current production version has a conservative bias in power tuning to ensure the reliability and durability of the engine.


Of course, it is still possible to put VTEC back in the future, because for the moment, 150 horsepower is fully enough in the country, so that it can become an upgrade in the future, not so fast.


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