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Re: what makes the new hemi cars so fast
[Re: moparmafia]
#1563537
01/15/14 06:05 PM
01/15/14 06:05 PM
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Joined: Mar 2010
Posts: 625
Indianapolis In. usa
Quickrunner
mopar
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mopar
Joined: Mar 2010
Posts: 625
Indianapolis In. usa
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I would say 40 plus years of technology advancement!
05 Ram 1500 Daytona package
71 Demon Gen3 hemi drag radial project
Missin' my 9 second 70 runner!
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Re: what makes the new hemi cars so fast
[Re: moparmafia]
#1563538
01/15/14 06:15 PM
01/15/14 06:15 PM
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Joined: Apr 2013
Posts: 345
Nebraska
451Cuda
enthusiast
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enthusiast
Joined: Apr 2013
Posts: 345
Nebraska
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Quote:
I have an srt8 challenger and my mom has a hemi 300 and i am just amazed how fast they are for a stock vehicle. I remember back when my 68 383 roadrunner was basically stock and this heavier car with smaller engine would eat it alive. every time i drive it i keep saying this thing cant be stock and i was curious is it the head flow they have now or is it the efficiency of new engines now or is it just a comination of many things
It's gotta be voodoo, baby!
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Re: what makes the new hemi cars so fast
[Re: moparmafia]
#1563539
01/15/14 06:30 PM
01/15/14 06:30 PM
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Joined: Nov 2004
Posts: 6,890
North Alabama
Monte_Smith
master
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master
Joined: Nov 2004
Posts: 6,890
North Alabama
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Quote:
I have an srt8 challenger and my mom has a hemi 300 and i am just amazed how fast they are for a stock vehicle. I remember back when my 68 383 roadrunner was basically stock and this heavier car with smaller engine would eat it alive. every time i drive it i keep saying this thing cant be stock and i was curious is it the head flow they have now or is it the efficiency of new engines] now or is it just a comination of many things
This pretty much sums it up. An engine is only an air pump. Pump MORE air, do it MORE efficiently, you make MORE power. Pretty basic.
Monte
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Re: what makes the new hemi cars so fast
[Re: cudaman1969]
#1563542
01/16/14 12:51 AM
01/16/14 12:51 AM
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Joined: Oct 2011
Posts: 515
geezer acres rest home
dakotawilly
mopar
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mopar
Joined: Oct 2011
Posts: 515
geezer acres rest home
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wait till the 600 plus hp challengers arrive,i believe its called hellfire,or something similar
Last edited by dakotawilly; 01/16/14 12:56 AM.
SFI 25.5 depends,no leak,even at 213 mph....
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Re: what makes the new hemi cars so fast
[Re: moparmafia]
#1563543
01/16/14 01:00 AM
01/16/14 01:00 AM
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Joined: Aug 2005
Posts: 6,003
Salem
Grizzly
Moparts Proctologist
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Moparts Proctologist
Joined: Aug 2005
Posts: 6,003
Salem
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Sometime in the 90's an issue of Hot Rod magazine I have was talking about fuel injection and computer control and what was about to happen next. They went on to say that FI and elaborate engine control will open more doors for horsepower. They also added that the old hp tricks like high compression and better flowing heads were soon to be used by the manufacturers. Hot Rod was right.  Go ahead, have a look at the compression ratio on your SRT or the Three Hundred. Guys complain about getting these old girls to run on 9.5 to 1 and some of the new engines are 11 to 1. I have a 5.7 in a Ram and I know what you are talking about. You wouldn't think a pick-up truck would be fast, but it is.  I used my 1/8th mile time and it converts to 14.98 in the 1/4. A 4700 pound four-wheel drive brick. 
Mo' Farts
Moderated by "tbagger".
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Re: what makes the new hemi cars so fast
[Re: Monte_Smith]
#1563545
01/16/14 12:00 PM
01/16/14 12:00 PM
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Joined: May 2005
Posts: 6,446
NJ-USA
HPMike
master
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master
Joined: May 2005
Posts: 6,446
NJ-USA
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Quote:
Quote:
I have an srt8 challenger and my mom has a hemi 300 and i am just amazed how fast they are for a stock vehicle. I remember back when my 68 383 roadrunner was basically stock and this heavier car with smaller engine would eat it alive. every time i drive it i keep saying this thing cant be stock and i was curious is it the head flow they have now or is it the efficiency of new engines] now or is it just a comination of many things
This pretty much sums it up. An engine is only an air pump. Pump MORE air, do it MORE efficiently, you make MORE power. Pretty basic.
Monte
Exactly...
Its like just the other day, I drove a friend of mine's late model AWD Infiniti G35.. Got it out on the highway and nailed it..WOW..the thing pulled like a freight train  ..8K plus redline...Only 3.5 puny naturally aspirated litres pushing a loaded down 4000+ lb sedan.
Simply amazing this new stuff is..
MB
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Re: what makes the new hemi cars so fast
[Re: HPMike]
#1563546
01/16/14 12:06 PM
01/16/14 12:06 PM
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Joined: Jan 2003
Posts: 8,022
Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,022
Tulsa OK
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My wifes 3.5 liter V6 Ford Edge "station wagon crossover thing" has 275HP and shifts at 6500, moves pretty good for a wagon SUV thing as well. It shifts at 6500 and the tach only goes to 7000. Makes you feel like your really hammering on it when you almost peg the tach.
68 Barracuda Formula S 340
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Re: what makes the new hemi cars so fast
[Re: dustergirl340]
#1563547
01/16/14 01:08 PM
01/16/14 01:08 PM
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Joined: Jan 2003
Posts: 20,176
Park Forest, IL
slantzilla
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,176
Park Forest, IL
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Quote:
Don't post this in the general forum...guys will tell you their bone stock 383 ran 11's back in the day, and runs 10's now. lol...
Uh uh, 9's baby! 
I have an SRT-8 too. I believe it is a combination of things, not just one. Ignition and fuel systems are light years ahead of the old stuff, add in variable cam timing, lightweight components, more gears in the trans, and the list goes on.
The one thing missing that the old big block cars had is TORQUE! You just don't have it like the big motors.
However, you can go to the track and rip off 12 and 13 second passes all day, then pull out the gate, turn on the A/C, set the cruise at 80, and knock down 20+ MPG in pretty comfy surroundings.
"Everybody funny, now you funny too."
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Re: what makes the new hemi cars so fast
[Re: slantzilla]
#1563548
01/16/14 02:12 PM
01/16/14 02:12 PM
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Joined: Jan 2007
Posts: 568
Ky
moparmafia
OP
mopar
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OP
mopar
Joined: Jan 2007
Posts: 568
Ky
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Quote:
Quote:
Don't post this in the general forum...guys will tell you their bone stock 383 ran 11's back in the day, and runs 10's now. lol...
Uh uh, 9's baby!
I have an SRT-8 too. I believe it is a combination of things, not just one. Ignition and fuel systems are light years ahead of the old stuff, add in variable cam timing, lightweight components, more gears in the trans, and the list goes on.
The one thing missing that the old big block cars had is TORQUE! You just don't have it like the big motors.
However, you can go to the track and rip off 12 and 13 second passes all day, then pull out the gate, turn on the A/C, set the cruise at 80, and knock down 20+ MPG in pretty comfy surroundings.
That is one of the things that appealed to me about my srt8 was the ability to go to the track and put down some decent numbers then just turn on the a/c and head home while getting 20 mpg. dont get me wrong i love my racecar but theres times i just enjoy going to the track without all the hassle of the race day stuff.
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Re: what makes the new hemi cars so fast
[Re: moparmafia]
#1563549
01/16/14 02:22 PM
01/16/14 02:22 PM
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Joined: Jan 2003
Posts: 5,989
Anoka County, MN
Leigh
master
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master
Joined: Jan 2003
Posts: 5,989
Anoka County, MN
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Quote:
Quote:
Quote:
Don't post this in the general forum...guys will tell you their bone stock 383 ran 11's back in the day, and runs 10's now. lol...
Uh uh, 9's baby!
I have an SRT-8 too. I believe it is a combination of things, not just one. Ignition and fuel systems are light years ahead of the old stuff, add in variable cam timing, lightweight components, more gears in the trans, and the list goes on.
The one thing missing that the old big block cars had is TORQUE! You just don't have it like the big motors.
However, you can go to the track and rip off 12 and 13 second passes all day, then pull out the gate, turn on the A/C, set the cruise at 80, and knock down 20+ MPG in pretty comfy surroundings.
That is one of the things that appealed to me about my srt8 was the ability to go to the track and put down some decent numbers then just turn on the a/c and head home while getting 20 mpg. dont get me wrong i love my racecar but theres times i just enjoy going to the track without all the hassle of the race day stuff.
 Wallace shows 431 RWHP and 479 FHP. 112 mph @ 4257 curb weight.
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Re: what makes the new hemi cars so fast
[Re: Leigh]
#1563550
01/16/14 05:14 PM
01/16/14 05:14 PM
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Joined: Jan 2007
Posts: 685
pennsylvania
poboyengineering
mopar
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mopar
Joined: Jan 2007
Posts: 685
pennsylvania
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" Wallace shows 431 RWHP and 479 FHP. 112 mph @ 4257 curb weight. "
I remember reading an article when the gen3 came out. they dug out an old dyno sheet from 64/65 on the 426, and it made 476hp. they stripped a 5.7 to the old specs(no WP,PSP, etc) and it made 476hp at the same RPM. I want to say it was at 6800, but I may be off on that one.
It may be ugly, but it sure is slow.
Girls comb their hair in rear view mirrors and the boys try to look so hard....
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