Do Hemi engines use more gas?

Hemi surface area is smaller than that of a flathead engine, so less heat escapes during combustion – and hotter fuel burns better.

Subsequently, Which is better Hemi or Cummins?

Overall, the gas HEMI engine provides the best gas horsepower among 250/2500 pickups — and more payload capacity than the Cummins — but the turbo diesel outperforms it with mountains of torque and more maximum towing capacity.

then, Is a Hemi better than a V8?

5.7L HEMI V8 Engine

As far as towing capacity goes, the HEMI can haul more than 10,000 pounds of whatever you can strap down. … Things like a lower price and better fuel efficiency make the V6 sound enticing, while the more expensive but beastly V8 could suit your needs better, especially if that need is raw power.

Thereof How many miles per gallon does a 5.7 Hemi get? 5.7L HEMI V8 Engine. Fuel Efficiency (4X2): 15 mpg city/22 mpg highway. Fuel Efficiency (4X4): 15 mpg city/21 mpg highway.

How long will 5.7 Hemi last?

Chances are, well maintained Chrysler 5.7L HEMI engines should last to 200,000+ miles. Problems will occur along the road to old age and high mileage. However, no engine is exempt from this general concept. Overall, the HEMI 5.7 is a reliable, powerful, and fun engine to drive.

21 Related Questions Answers Found

How much horsepower is a 5.7 Hemi?

5.7L HEMI® V8

The 5.7L V8 HEMI® engine is available only on the R/T trim This engine offers 370 horsepower with 395 lb-ft of torque. With this powerful HEMI® upgrade, you’ll get a 0-60 mph of 5.2 seconds and a ¼ mile time of 13.7 seconds.

How many miles will a 6.4 Hemi last?

The maximum mileage you can expect from a 6.4 V8 Hemi is anything in excess of 250 000 miles.

Are Hemis reliable?

Again, the Chrysler 5.7 HEMI is a pretty reliable engine. Problems can and will occur at some point in the engines life. However, it’s a risk we take with all engines and the best we can do is maintain them as well as possible. 5.7L HEMI longevity should be north of 200,000 miles if well maintained.

Is the 5.7 Hemi a true Hemi?

Chrysler group’s new 345 hp, 5.7-liter engine is powerful just the same. A controversy is swirling over the combustion chambers in the Chrysler group’s 5.7-liter Hemi engine. … Says Lee: “Everything else, in terms of the valvetrain arrangement, the shape of the chamber, is in fact a true Hemi.

Why was the Hemi banned from Nascar?

According to various sources, the Hemi was banned “not for technological reasons, but because it wasn’t readily available in cars from Dodge or Plymouth assembly lines, ‘readily’ being the key concept.” The thrust of the argument being that it was too costly of an option for the average buyer.

Is the 5.7 Hemi a good engine?

Is The 5.7 Hemi A Good Engine? Overall, the 5.7 Hemi is an outstanding engine. It has earned a reputation as a reliable and sturdy workhorse of an engine. If you talk to anyone that owns a vehicle with a 5.7 Hemi engine, they will likely have very few, if any, bad things to say about it.

What gas does a 5.7 Hemi take?

Turns out it’s also for owners of Fiat Chrysler’s Hemi 5.7-liter V-8, as the company recommends 89-octane fuel for this engine.

Is a 5.7 Hemi fast?

5.7L HEMI® V8

The 5.7L V8 HEMI® engine is available only on the R/T trim This engine offers 370 horsepower with 395 lb-ft of torque. With this powerful HEMI® upgrade, you’ll get a 0-60 mph of 5.2 seconds and a ¼ mile time of 13.7 seconds.

How much horsepower does a cold air intake add to a 5.7 Hemi?

How much HP and torque does a cold air intake add? It makes such a big difference, in fact, that the simple process of redirecting the filter to draw cooler air is good for a horsepower gain of about 5 to 20 ponies in most cars.

What is high mileage for a 5.7 Hemi?

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 was rectified after 2008. It’s not uncommon to find high mileage 5.7 Hemi trucks running around today.

Why does my 5.7 Hemi tick?

Low quality fuel can cause the hemi tick. Fuels that contain high amounts of ethanol or that are low octane may not properly lubricate the fuel injectors and can lead to a slight tapping or ticking noise.

Did Ram fix the Hemi tick?

Short answer, no, RAM didn’t fix the tick as far as I have read. Owner options like what has been written in other threads and a bit above abounds but I believe it’s still there.

What is the most powerful Hemi engine?

Mopar_® is unleashing the most powerful production muscle-car engine ever available to builders and enthusiasts with the launch of its newest crate engine – the 807-horsepower Hellcrate Redeye 6.2-liter Supercharged HEMI^® V-8 engine.

How can I make my 5.7 Hemi faster?

Reduce engine weight by replacing the iron flywheel with a lightweight aluminum flywheel. The weight reduction allows the engine to rev faster; thus, power can be transferred to the rear tires faster. This improves torque and overall horsepower of the HEMI engine.

Does 6.4 Hemi require premium gas?

Like the 6.1L HEMI engine, the newer 6.4L/392 HEMI engine requires premium fuel for best performance.

Is the 6.4 Hemi reliable?

Chrysler, Dodge, Jeep, Ram 6.4 HEMI Reliability

Overall, the FCA 6.4 HEMI is a solid, reliable engine. It’s certainly not the most reliable engine in the world, but it’s also far ahead of the worst.

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).