Why is it that famous when it only produces 345 hp. ?? I think an engine with that big displacement should produce 400 + hp!!
2006-08-30 23:19:37 · 13 answers · asked by blackjaguar1979 1 in Cars & Transportation ➔ Car Makes ➔ Dodge
It's still powerfull, however, the vehicles that it drives are very heavy and thus doesn't make the engine too efficient.
The 6.0 L Hemi engine used in the SRT models produce well over 400 horsepower.
The Corvette designed V8s are the most efficient that I know of on the market today. With 400 horsepower and even more (505 horsepower) for the Z06 their highway mileage are in the mid-20's. Of course they are 6.0L and 7.0L displacements respectively.
The Hemi engine's gas mileage on the highway is about the same as the Corvette's city mileage. LOL
2006-08-30 23:27:54 · answer #1 · answered by Anonymous · 3⤊ 0⤋
Having driven a Hemi it's not as impressive as I had expected. I would consider it a bit underwhelming. The hemi design is not the greatest. the idea is a hemispherical combustion chamber so that two larger valves may be used to allow better air flow. Two bigger valves are better than 2 smaller ones, but 4 valves per cyl. which is common on many engines today is more efficient. Then add variable valve timing to that and it will be significantly more efficient. Just to prove that Hemi does not equal power, almost all older toyota 4cyl engines are "hemis". the newer versions use a 5sided combustion chamber as it is more efficient.
Compare that to the 5.7L V8 toyota will release later this year or early 07. it will be well over 400hp and good for 200k mi. The real test is on a dyno however. If you drive a hemi compared to other v8's I don't believe the hp is where they rate it. Either that or the HP curve is very skewed such that it has a narrow peak and less useable power. It just doesn't have that seat of the pants pull that other v8s do.
Finally compare it to many engines on the market with 120-140hp/liter. On this scale the hemi should produce between 680 and 800hp.
Comparing the HP of the new hemi to the old one is misguided argument. Old hp ratings were based on a stripped engine, not even including a waterpump. The new ratings after 1973/4 were rated as a complete engine. Different rating completely.
2006-08-31 10:09:29 · answer #2 · answered by JetboyToy 3 · 1⤊ 1⤋
You may be getting it confused with other Hemi's that are famous - and with very good reason. The 426 Hemi in particular was (and still is) a legend amongst the racing community all over the world.
Most V8 drag racing engines built today (top fuel etc) are based on technology from this engine created 40 years ago.
The 426 was officially rated at 425HP but this was only so that it wasn't banned from Nascar. It has since been proven that a stock 426 is capable of over 600HP.
And in the last few years, the 426 was re-released with additional strengthening ribs in the cylinder block to hold the crank tunnel straight, and now puts out closer to 650HP.
This is well over the "magic" 1 x hp per cubic inch - THAT"S why its FAMOUS.
2006-08-31 06:28:53 · answer #3 · answered by Anonymous · 1⤊ 0⤋
only produces 345. Are you crazy, that's a lot for the displacement in a stock configuration. Look at chevy's 5.7, same displacement, lower horsepower. That hemi is a great motor, lots of power.
2006-08-31 19:25:23 · answer #4 · answered by jay 7 · 1⤊ 0⤋
Hemi??? any Hemi rated in Liters is wimpy compared to Hemi's rated in CU inches. Talk all the modern add on's U want. Back in the day the Pwr in internal combustion engines depended totally on LEADED HI OCTANE fuel. No lead No go! 60's Hemis got 400 hp,on 125 octane leaded fuel. Todays Hemi of roughly the same displacement gets 275 hp on 92 octane no lead. WIMPY. a couple of generations have grown up driving wimpy jap crap 4 cyl cars with not one stick shift or clutch. Scare them to death in a 60's Mopar or GTO or even a ford Mustang. Poor deprived folks.......
2006-08-31 07:57:43 · answer #5 · answered by Anonymous · 1⤊ 0⤋
It was back in the '60s when the Hemi became famous because at that time, it produced well over 400 horsepower and mountains of tork. The only reason todays Hemi doesn't produce that much power is because of fuel economy regs. If it wasn't for that, it would have stratospherical horsepower ratings.
2006-08-31 06:45:06 · answer #6 · answered by HULK RULES!! 7 · 1⤊ 0⤋
that one guy can't say that the chevy 5.7 doesn't produce as much horsepower and therefore isn't as good...the 5.7 is an ancient engine, it's competition was the dodge 5.9 and the ford 5.8. these engines were made before the "horsepower revolution" when the big 3 redesigned all their v8s and made them more efficient and powerful. compare the hemi to a chevy 6.0 v8. that is more of a comparison because those engines are competitors with each other.
2006-09-02 03:24:54 · answer #7 · answered by Anonymous · 0⤊ 0⤋
I have a 04 RAM P/U with the HEMI and 3.92 gears. It runs the 1/4 mile in the mid 14 teens and gets 16 mpg. Not many of the early muscle cars could do both.
2006-08-31 12:26:05 · answer #8 · answered by Tinker 4 · 0⤊ 0⤋
r u stupid?? its a feakin powerful a s s engine n no u don't need more than 400 horses with that kinda displacement.. u can't make 400 horses with that kinda displacement without a turbocharger r a supercharger.. the truck is powerful as f u c k.. i got a hemi truck n 300C.. they're mad fast.. u can burn the rear wheels on both of them.. the hemi makes ridiculous torque n it can tow nearly 10,000 pounds r so.. its also got a huge payload.. 2000 pounds i think.. trust me its way faster than u'd need..
2006-08-31 08:02:59 · answer #9 · answered by Anonymous · 2⤊ 0⤋
I have a 2005 Dodge Ram 1500 Daytona. It has a Hemi 5.7L or 345 CID. It is sick fast, for a stock Engine. It's pick-up is so fast it puts you deep into your seat. I have had fast Trucks before but not this fast. I know it's not as fast as the SRT10, but it has not disappointed me yet!
2006-08-31 23:18:45 · answer #10 · answered by tm 3 · 0⤊ 0⤋