What is so special about a Hemi engine?

What is so special about a Hemi engine? The Hemi engine’s unique design, which features less surface area, results in less heat loss. This means the engine’s peak pressure can be higher, which can result in better efficiency. Additionally, larger valves mean it’s easier for air to flow through a Hemi engine.

What is the benefit of a Hemi engine?

A HEMI® engine is composed of a hemispherical combustion chamber with dome shaped cylinders and matching piston tops. This creates less surface area than traditional engine which means that less heat and energy lost, and more power is produced.

Is a Hemi better than a V8?

The correct answer to your question is “yes”. The modern Chrysler Hemi engine series is a Wards top ten engine and favorite for reliability. They are very overbuilt and are actually far more reliable than the legendary 318 V8, which Chrysler made decades ago.

Is a Hemi engine better than a regular engine?

The Hemi engine, by design, does a better job of burning all the fuel in the cylinder. Also, because of its design versus a flat head, the surface area is smaller and that means less heat escapes, plus peak pressure can be higher. … Simply put, other engine designs have gotten better over time.

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What are the cons of a Hemi engine?

Drawbacks of the HEMI design

The biggest flaw with the HEMI engine is that it can only have two valves per cylinder. The top of the chamber is round, so it doesn’t have a lot of space to fit more than a few valves. Additionally, these valves won’t be able to produce as much airflow as a four-cylinder engine.

Are Hemi engines good on gas?

5.7L HEMI V8 Engine. Fuel Efficiency (4X2): 15 mpg city/22 mpg highway. Fuel Efficiency (4X4): 15 mpg city/21 mpg highway.

Are Hemi engines loud?

The Chrysler hemi performance engines are notorious for making slight tapping or ticking noises. … If your hemi has begun making a ticking noise or the noise has increased, you should take the vehicle to a certified professional mechanic so that the cause of the ticking can be professionally diagnosed and repaired.

Is a hemi better than a Chevy?

The 5.7-liter Hemi V8 in the Ram is better than the 5.3-liter V8 in the Chevy on paper. The Hemi makes 395 hp and 410 lb-ft of torque while the Chevy’s similarly sized and priced V8 makes 355 hp and 383 lb-ft of torque.

What engine is better 5.7 or 6.4 hemi?

The 6.4 HEMI generally offers an extra 75-100 horsepower over the 5.7 engine. Thanks to larger displacement the 392 is also good for an extra 60-80 lb-ft. Low-end torque is also about 70 lb-ft more than the 5.7 further widening the gap between the two. … Clearly, this saying holds true in the 5.7 vs 6.4 HEMI comparison.

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Is a 6.4 hemi a big block?

The modern hemi is definitely a small block. The small block / big block is not determined by the factory displacement (for example, Chevy built a 400 cubic inch small block that had more displacement from the factory than the original 396 big block).

Are Hemis worth it?

“Hemis’ are usually high performance engines. They cost more up-front and in use. If you had a use for that extra power you would not be asking on Quora, so you are interested in an image. If you can afford the total cost of ownership it is worth it, since it does grant an image.

Why are Hemis so expensive?

The 5.7 Hemi engine is relatively heavy and also costly to produce. This makes the engine more expensive than other engines on the market. … Today, the engine is available in Dodge Charger, Dodge Challenger, and the Chrysler 300c. It is also available in Ram trucks.

Which Hemi is the best?

If you are looking for the HEMI powered vehicle with the best acceleration, the Dodge Challenger SRT Hellcat is your car. Powered by a supercharged 6.2 liter HEMI, it’s capable of a 0-60 mph sprint in the low 3 second range (and we’ve even seen some claims of a 0-60 time of under 3 seconds).

How many miles will a 5.7 Hemi last?

5.7 Hemi engines are good for 250-300 000 miles and more if properly cared for and regular maintenance is carried out. Early models suffered from valve seat issues which were rectified after 2008. It’s not uncommon to find high mileage 5.7 Hemi trucks running around today.

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Is the Hemi 5.7 a good engine?

Overall, the 5.7L HEMI is a stout and reliable engine. It’s certainly not the most reliable engine in the world. It’s also miles ahead of the least reliable. There’s good reason the Chrysler 5.7L has powered some flagship cars for nearly two decades.

Which year Hemi is best?

2004 – 2012 are all good years for the HEMI. BTW, They sold more 03′ than any other year. I think Dodge did their homework when they built this motor.