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MattM
Dodge Dakota
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5/17/2002
03:44:16
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 Subject: Waiting for a HEMI
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I've been visiting this site for awhile and I have noticed that alot of people hear "HEMI" and immediately think that it is something they have to have, and from what this guy says it sounds like alot of people already do.
Buddy Revell pointed out that the new engine is "almost" a Hemi - "the only reason it isn't called a hemi is because the combustion chambers have a wall on one side that makes it look kind of like a flat tire. Other than that everything is in the same arangment. The valve springs are across from each other and the spark plug goes right down the middle."
http://www.allpar.com/mopar/47.html
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kota on 20s
GenIII
 
5/17/2002
16:09:51
| RE: Waiting for a HEMI
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who said the 4.7 was a hemi?? most of us (if not ALL of us) are talking about the new 5.7L HEMI.
Eric, 98 5.2 5speed, K&N gen II, 50mm TB, 2bbl M-1, 1.7RR's, JBA ciramic headers, carsound cat, dumped gibson, and a lot more
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Nicholas
Dodge Dakota
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5/17/2002
20:48:57
| RE: Waiting for a HEMI
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When the 5.7's out, im pullin the 4.7!
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Hersbird
Dodge Dakota
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5/17/2002
22:32:48
| RE: Waiting for a HEMI
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The 4.7 motor is closer then the ford Boss 429 they called a semi-hemi. The valves on that motor were not completely opposed but turned a bit. They thought they could get away with this when they outlawed the Hemi motor. They actually didn't outlaw the Hemi cumbustion cahmber, they outlawed opposed valves. The valves were what added power more then the hemi shaped chambers. Or they were just trying to give Ford a boost, some things never change in Nascar!
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conig
Dodge Dakota
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5/18/2002
13:26:59
| RE: Waiting for a HEMI
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don't most modernday engines have a hemispherical head? do you really think dodge will build the 5.7 much different from the 4.7l? dodge is going to a modular design of engine just like ford and chevy have done. 5.4 4.6 stroke is the only real difference between the engines.
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jack
Dodge Dakota
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5/18/2002
13:39:39
| RE: Waiting for a HEMI
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Back in the good old days, Dodge made a 426 hemi that produced more hp than it displaced in cubic inches. With a small amount of tweaking, one could reasonably expect 450 to 475hp from it. In the technology available at that time the motor was fitted with twin 750 double pumper carbs and was an extremely awsome ride. I had a 440 charger and all I saw was blue smoke and taillites. Why not go scrounging around the highways and byways and find one to make it fit. be ready for a huge fuel bill though. Thoose horses get mighty thirsty and wont respond well to todays fuels. Happy hunting.
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Hersbird
Dodge Dakota
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5/18/2002
18:26:15
| RE: Waiting for a HEMI
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Most motors do not have a hemi shaped cumbustion chamber except 4 or 5 vlave per cylinder motors. The hemi heads on a 2 valve per cylinder motor is rare, let alone opposed valves and a center sparkplug. The 426 hemi was underrated by the factory. They didn't lie when that said 425 hp at 5000 rpm, but that wasn't the peak! The hemi really made a good 450 hp stock. You can of course go down to your local Dodge dealer and buy a complete, intake to oil pan, new 426 hemi (or bigger). They have even made a few improvements to it. The 5.7 is completely different then the 4.7. Whats the big deal about making a modular motor where only the stroke was different. Only the bore is different on a 273-318-340 and then the 360 gets a longer stroke and a bore similar to the 340. I guess Dodge was "modular" when "modular" wasn't cool! Whats cool about this 5.7 hemi is it's going to make 350 HP in it's first year. Then they may tweak it, or stroke it and you could easilly see 400 HP versions of it in speciality cars. That would be about the same net power as a stock 426 hemi!
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Wincupguy
Dodge Dakota
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7/01/2002
16:41:28
| RE: Waiting for a HEMI
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This is exciting new about the new Chrysler 5.7L Hemi. However NASCAR officials probably will not be enthusiasic. NASCAR does not alway greet innovation with open arms. I'm sure Ray Evernham would love to tinker with this new hemi engine. NASCAR would never allow a two spark plug per cylinder enigin to compete in Winston Cup competition. Even if Chrysler were to produce a one spark pug per cylinder version of this new hemi engine for NASCAR competition, as was the case with the 426 hemi of yesteryear, NASCAR would probably ban it from competition. NASCAR's attitude towards innovation is unfortunate.
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GlenC
GenIII
7/01/2002
21:10:22
| RE: Waiting for a HEMI
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Why did they ban the hemi? Seems like they'd promote those with the better designs and technology.
GlenC
'01, CC, SLT, 4.7, Auto, 3.55 LS
MBRP stainless dual rear exit catback.
Robert Shaw 180 T-Stat. Autolite 3923s
JBA Headers.
Kenne Bell supercharged.
Roadmaster active suspension.
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xplikt
Dodge Dakota
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7/02/2002
00:21:19
| RE: Waiting for a HEMI
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I saw on car-truck where they might put an HO 5.7L instead of the viper engine, in the SRT-10. I'd rather the viper myself, but would be cheaper..
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A-Rod
Dodge Dakota
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7/02/2002
12:33:17
|  RE: Waiting for a HEMI
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Well boys Chrysler's HEMI is the most powerful engine ever. Look at the engines on the top fuel dragsters in NHRA making a small 6000 yes six thousand horses is a Chrysler HEMI. Now tell me that aint power.
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A-Rod
Dodge Dakota
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7/02/2002
12:36:10
| RE: Waiting for a HEMI
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THey banned them because one word, Government. They got bad mpg. and all that new junk they got on cars now will choke them down and everything in electronic with computers.
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Big Blue QC
GenIII
7/02/2002
16:43:39
| RE: Waiting for a HEMI
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I had said one time the new HEMI was based on the 4.7L, but have since found from more research I was wrong. Sorry if I confused anyone. Sounds like a great motor(HEMI).
2002 QC 4x4 Sport Plus, 4.7L, auto, Patriot Blue, Tire & Handling group,
Heavy Duty Service group, Leer cap w/out windows, Mopar Step bars and roof rack, Rhino liner in bed and on step bars, Pace Edwards Power Tailgate lock
3.55 rear, 4-wheel anti-lock brakes, all possible fluids are AMSOIL
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Brad
Dodge Dakota
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7/02/2002
16:55:05
| RE: Waiting for a HEMI
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The 5.7L has no relation to the 4.7L. The 5.7L is a pushrod engine the 4.7L is a overhead cam engine. Very different.
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alex
Dodge Dakota
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7/02/2002
17:22:25
| RE: Waiting for a HEMI
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The Government didn't ban the Hemi. NASCAR banned the hemi because people like Richard Petty kept winning races by 2 and 3 laps. Think about the superspeedway races that they have now. Restrictor plates keeping everyone doorhandle to doorhandle for 500 miles with about 3 lead changes per race. One guy breaks out of the pack and suddenly starts driving backwards. The race is won in the pits and on the last lap.
If you can manage to catch one on ESPN Classic, try to watch some coverage of NASCAR races from 1967-1969. Richard Petty was winning almost every race and when other guys were running 175-180 mph, The King was running 185-195. Can you see Rusty or Jeff or Mark passing somebody going 10 mph faster? Hell no. Unless they've wrecked their car and are just trying to accumulate points, the drivers are all within 2-5 mph of each other.
The Hemi was ruled "An Unfair Advantage." To sum up, Mopar's been kicking everyone else's ass since the 50's when it all started with the Red Ram in the DeSoto.......
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Dak318
Dodge Dakota
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7/02/2002
23:22:41
| RE: Waiting for a HEMI
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When the 5.7 comes out I may rip the 5.9 out of my bro's Ram 2500
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slimjimie9
Dodge Dakota
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9/29/2002
23:16:30
| RE: Waiting for a HEMI
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just got the new hot rod mag and guess what, the new 5.7 hemi motor is in it. Now I am wild about the new motor and thinking of putting it in my duster.
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MikeD
*R/T*
9/29/2002
23:30:05
| RE: Waiting for a HEMI
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Yeah I heard that same thing about NASCAR saying it was unfair that Chysler kept winning almost every race. So what they did is they didn't come right out and say it was unfair they just made a new rule that only a certain cubic inch motor was allowed. It was something like a 353 was the limit just so Dodge still couldn't use their 360 engines and had to destroke them. Sounds like to me alot of the guys in NASCAR are Ford and Chevy fans.
Of course you know the Dodge guys could easily push out more HP w/ the newer Hemi but w/ the stupid emission laws it restricts its potential.
~Mike~
Get In...Sit Down...Shutup...& Hangon
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NASCAR SUCK
Dodge Dakota
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9/29/2002
23:56:11
| RE: Waiting for a HEMI
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Who watches NASCAR ?. It is boring as hell, watching bunch of cars go around the lap. NASCAR SUCK big time. I'd rather watch little civis races each other.
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GlenC
GenIII
9/30/2002
12:37:58
| RE: Waiting for a HEMI
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MikeD, thats why im counting on the after market jumping all over this engine. I figure i'll wait a little while, then get the engine, slap some mods on it, and throw it in my dak. :) Untill then, i'll keep going to the local dodge dealer and driving around a new ram with one in it.
GlenC
'01, CC, SLT, 4.7, Auto, 3.55 LS, 4x4
MBRP stainless dual rear exit catback.
Robert Shaw 180 T-Stat. Autolite 3923s
JBA Headers.
Kenne Bell supercharged.
Fried Rice
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D
GenIII
9/30/2002
17:17:09
| RE: Waiting for a HEMI
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glenC, if you're gonna get a new motor, let me
know when you want to donate that kenne
bell!!!! LOL
01 4.7 CC auto 3.92 LS
Dynomax 3" catback, dumped
HO cams, HO intake manifold
ported-polished 68mm TB
180 stat, no clutch fan
airaid intake, DJMdrop 3-6
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GlenC
GenIII
9/30/2002
17:34:13
| RE: Waiting for a HEMI
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When i finally do get the new 5.7L. I'll be putting my complete system up for sale. But like i said, im gonna wait for the aftermarket to jump all over it first. Then i gotta find out if it can be done. I mean, what about the PCM and the tranny computer? If that stuff works on a ram, wont there be differences other than just engine controls? Seems kinda iffy actually. It'd probably be easier for me to drop a 426 hemi in instead........
GlenC
'01, CC, SLT, 4.7, Auto, 3.55 LS, 4x4
MBRP stainless dual rear exit catback.
Robert Shaw 180 T-Stat. Autolite 3923s
JBA Headers.
Kenne Bell supercharged.
Fried Rice
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Demon-Xanth
Dodge Dakota
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10/01/2002
12:35:44
| RE: Waiting for a HEMI
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The problem wasn't the Hemi as much as the aero cars. At Daytona a Ford had the pole at 180MPH when a Superbird pulled down a 199MPH lap (the tires weren't upto it, so they didn't run). The next year they were so dominant that is wasn't even funny. So they made the ruling that the aero cars can only have 358CID. This killed the aero cars. Somewhere in between then and now stock cars because race cars and we're back to all aero. And restrictor plates. And Dodge may get the 5.7 hemi in NASCAR. GM got the SB2.
The Hemi was largely killed off because of the changing times, people were becoming more interested in MPG than MPH or ET. The Hemi was a great engine that they chose not to tame. They left the taming to the LA blocks.
The 4.7 is a hemi-like engine in regards to it's combustion chamber, however it's not really a hemi in spirit.
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