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Hemi Vs Wedge Debate
#176814
12/28/08 12:17 AM
12/28/08 12:17 AM
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Joined: Nov 2003
Posts: 6,293
Rock Springs
Bob_Coomer
OP
master
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OP
master
Joined: Nov 2003
Posts: 6,293
Rock Springs
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OK we have similar builds, compression 13:1+ Solid Roller setups. All good valve gear. Same style intakes with similar carbs. Lets say both engine heads have been fully ported in which the wedge heads flow around 380+cfm at .800 lift, with a larger 360CC port....The hemi heads flow a bit better 450-460cfm+ at .800 lift, with a way smaller runner. 240-250cc runner. How will the intake/head differences effect HP, and Torque between these engines? Which would have a broader Torque range... Will the wedge head seem to make more power up top? I have a good guess on power for the Wedge  But wondering how a Hemi build similar would run 
[color:"red"]65 Hemi Belvedere coming soon [/color]
[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]
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Re: Hemi Vs Wedge Debate
[Re: Bob_Coomer]
#176815
12/28/08 12:23 AM
12/28/08 12:23 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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A lot of varibles enter in to this...The main one is cubic inches..Are you talking 426H vs.440W or are we talking about motors with a 4.25 or 4.5 arm? 
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Re: Hemi Vs Wedge Debate
[Re: Bob_Coomer]
#176820
12/28/08 11:04 AM
12/28/08 11:04 AM
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Joined: Aug 2006
Posts: 614
Michigan
Get-X
mopar
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mopar
Joined: Aug 2006
Posts: 614
Michigan
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Quote:
Quote:
This argument's been going on for about 80 years. I can tell you that when my car pulls to the line people come running. Having said that, I would turn my car off and get out to watch Chuck Millen's Wedge. It's personal choice, or more truthfully my Mom would disown me if I didn't run a Hemi.
I here that, great looking car, I would love to know your setup. The carbs etc. I will be running the same intake as you also..... Feel free to pm me about the entire car if you want...
BTW
I feel the same with Chucks car, never seen it run, but I know him personally, good people... 
Add me to the list  I too am building a 65 Belvedere with a 572 Hemi, Stage V big valves, Mopar x-ram etc...I'm a little curious what mods the intake needs. I know the plenum covers need to be fixed or replaced. Anyway, any insight or advice would be greatly appreciated
Marc
'65 Belvedere
'68 GTX
'57 Dodge pickup
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Re: Hemi Vs Wedge Debate
[Re: RAT PATROL]
#176822
12/28/08 11:33 AM
12/28/08 11:33 AM
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Joined: Oct 2006
Posts: 247
nc
moeflo
enthusiast
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enthusiast
Joined: Oct 2006
Posts: 247
nc
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Quote:
This argument's been going on for about 80 years. I can tell you that when my car pulls to the line people come running. Having said that, I would turn my car off and get out to watch Chuck Millen's Wedge. It's personal choice, or more truthfully my Mom would disown me if I didn't run a Hemi.
Beautiful car!! and remember....Always listen to your mother.
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Re: Hemi Vs Wedge Debate
[Re: moeflo]
#176823
12/28/08 11:47 AM
12/28/08 11:47 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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The Hemi is going to make more bottom end power, but the wedge will be very reliable. Top end power is a toss-up...Wedge is cheaper to build....Hemi valve train pieces cost a small fortune.... I would build the wedge, but I may be a little prejudice, I run wedges...
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Re: Hemi Vs Wedge Debate
[Re: Get-X]
#176824
12/28/08 11:54 AM
12/28/08 11:54 AM
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Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing
master
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master
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
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I'll add to the argument based on having street driven,raced,built,and tuned the fabled Hemis and Wedges in about every configuration,with the exception of T/F and only occasionally with nitrous  .I can proclaim the in pure configuration in the right hands the Hemi gets my vote.Taking things to another level with all the R&D of wedge inspired techonology,the wedge engine have taken an edge.In certain venues where rules of modification limit or regulate the use of aftermarket techonology(class racing) the Hemi retains the edge.In pressurized(blown&turbo- charged) the Hemi will stand tall above all types engines.With all the new wedge or canted wedge style cylinder heads and manifold combinations the Wedges have a slight advantage,and are the popular choise.If someone wants to expound the time and effort to do some heavy Hemi R&D it would certainly be competitive to any engine if not reclaim it prestiges reputation of years past.The the word Hemi,the look,and the performance will make any nobody become someone to be respected.Take for instance four of my favorite all time big losers,Missle Kevin,HemiFred,Hemmeroidites,and the Yankee Fish Peddler.With out a Hemi they would be just four more flies on a pile of crap. 
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Re: Hemi Vs Wedge Debate
[Re: dizuster]
#176826
12/28/08 12:19 PM
12/28/08 12:19 PM
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Joined: May 2004
Posts: 12,383
Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
Joined: May 2004
Posts: 12,383
Taxes & Virus's R-US, NY
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In the old days, when comparing 426 hemi to 440 wedge, the hemi was always quicker. Then you look at all the heavy cars in the 9's, and it was always them hemi's. The wedge engines were the ones in the 10's.
Now with the advent of all the R&D, both have got better, and both are capable of 8's in a nearly street weight car at 572 cubes, which is better...Does it matter at that level? I like both, and for me it would depend on the application and what I want to do with the car.
For my car, there was no other choice. I had a tunnel rammed 440 in the car, and nobody even noticed it. I put the hemi in it, and it became the crowd favorite. Other than the heads and pistons, they are pretty similar engines. Which is better, again depends on the car and the goal in mind I think.
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Re: Hemi Vs Wedge Debate
[Re: dizuster]
#176827
12/28/08 12:33 PM
12/28/08 12:33 PM
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Joined: Jul 2005
Posts: 8,647
ELYRIA,OH
blownzoom440
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Joined: Jul 2005
Posts: 8,647
ELYRIA,OH
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Quote:
How come you guys think the hemi would make more low end torque? Not having specifics on the heads, something that flows 80cfm more has a larger port, meaning it needs more RPM to get the airspeed up. I would think the wedge would be better down low, and the hemi would make it upstairs...
 narrower power band.
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Re: Hemi Vs Wedge Debate
[Re: blownzoom440]
#176828
12/28/08 12:49 PM
12/28/08 12:49 PM
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Joined: May 2008
Posts: 902
Mopar Lane,Mississippi
67HEMI
super stock
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super stock
Joined: May 2008
Posts: 902
Mopar Lane,Mississippi
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The Hemi is easier to change spark plugs in plus they have a lot more  factor 
Last edited by 67wedge; 12/28/08 12:50 PM.
'33 Plymouth 5 Window Coupe Blown Aluminum HEMI w/bolt ons (under construction)
'69 Chrysler 300 Convertible 375 HP 440
'71 Plymouth Duster 360 W/EFI (Wife's Ride)
'12 Ram MegaCab Dually 6.7 Cummins
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Re: Hemi Vs Wedge Debate
[Re: 67HEMI]
#176831
12/28/08 01:06 PM
12/28/08 01:06 PM
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Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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A hemi port does not have to be huge to flow like crazy, look at the new version hemi for proof, ports are no bigger than a SB head but can easily flow way over 300cfm like a heavily ported W2. The air flow has an almost direct shot at the back of the valve with a very long sweeping short turn it can make really fast and high volume air flow through a relativly small port.
All that being said I beleive with the factory valve positions an equally built wedge and hemi the hemi will always make more power. Now throw in all the canted valve wedges and moved centerlines and yes the wedges can keep up with the hemi.
BTW the comparison of the CC of the port is unfair because the Hemi has a shorter distance to the valve inside the head. A better comparison would be to compare minimum cross section in witch case the hemi will flow more in standard valve configuration.
The main reason the wedge is so popular is just because it is so much cheaper with only one rocker shaft and no spark plug tubes.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Hemi Vs Wedge Debate
[Re: B G Racing]
#176832
12/28/08 01:40 PM
12/28/08 01:40 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
Take for instance four of my favorite all time big losers,Missle Kevin,HemiFred,Hemmeroidites,and the Yankee Fish Peddler.With out a Hemi they would be just four more flies on a pile of crap.
Yep, my only input is, I have never seen a shirt that says;Yea ...It's got a Wedge
Sincerely,
Kevin "The Fly"
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Re: Hemi Vs Wedge Debate
[Re: HotRodDave]
#176833
12/28/08 01:45 PM
12/28/08 01:45 PM
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Joined: Jan 2003
Posts: 19,355
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,355
Las Vegas
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Seems pretty simple. If the hemi was the be all and end all of naturally aspirated engines they would be ruling the heads up classes of the world. I think we can all agree that they do not do that.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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