same engine displacement diff HP

[jtbjr]

hi sirs,

just curious, why is that a 2.5d4-d engine has much lesser HP
than a 2.5montero and almost the same power as 1.5hyundai crdi engine, in the same way, a 1.5vvti engine as the same HP as the 1.4 hyundai accent engine?
why is this like this? anybody knows the logic of these why toyota's engine are made to have less power compared to its competition? cost savings??effeciency?? thanks in advance

[kkreuk18]

It means mas genius ang ECU's ng hyundai compared sa toyota at mitsu.
Marami na kasi factors para maitaas ang power ng auto. ECU, Turbo, number ng camshafts.

[reym]

There are some factors like body weight, gear ratio and gear final ratio that you should consider.

[timo07]

One reason is the way the engines are tuned by the manufacturer, particular to the model being offered. Not necessarily because of technology but rather, practicality for the application.

It may be necessary to increase the output of an engine for use on utility vehicles (like pick-ups) by installing an intercooler, whereby you can increase the volume of cool air to be delivered to the engine, hence greater output. Stretching an engines power output may shorten it's useful life though. The D4D's turbocharging set-up is basic(without intercooler) while for the Mitsu is Intercooled.

The d4d's output of 100hp on the innova is just okay, if I may say so. The Montero on the other hand is a bit heavier as compared to the Innova so more power is ideal and so goes with the other brands.

And then another reason is in the Technology itself (Hyundai's). Developing theirs based on the more advanced European technology.

[voltscastillo]

technology and the components INSIDE the engines.

bakit kanyo?

ang civic SiR at ang regular civic ay may parehong 1.6 engine. tig apat din cylinders nila. pero anlayo ng power ng sir sa vti civic.

the secret is in the internal engine design... the sir has more cams, a better air intake, better computer. yung ibang kotse ganun din... minsan parehong engine nga pero magkaiba ang power (4d56 turbo and non turbo).

[Ry_Tower]

technology and the components INSIDE the engines.

bakit kanyo?

ang civic SiR at ang regular civic ay may parehong 1.6 engine. tig apat din cylinders nila. pero anlayo ng power ng sir sa vti civic.

the secret is in the internal engine design... the sir has more cams, a better air intake, better computer. yung ibang kotse ganun din... minsan parehong engine nga pero magkaiba ang power (4d56 turbo and non turbo).

TAMA! example lang din, I once saw sa TV yung explanation ng technician ng F1 mclaren team regarding sa piston ng merc cars and F1 cars nila. Malayo yung design ng head ng piston at sobrang nipis/gaan pero good for 2 weeks worth of racing nga lang whereas yung sa prodcution car ay designed naman for longevity. That is why for a specific purpose/car, may specific design din ng engine. Kung makakatipid ka, mas ok diba.

[niky]

It all depends on the requirements.

The Innova D4D doesn't make a lot of power, but it's cheap to build and economical (as good as the Isuzu 4JA1 or better, actually). A more powerful motor would drive the price of the Innova up without adding anything that the buyers need.

SUV buyers expect power, which is why the Fortuner gets the more powerful 3.0.

HARI also offers models with different engine trims. The base Grand Starex has a weaker non-CRDI 2.5, whereas the top-of-the-line model gets a 170 hp 2.5 CRDI.