how many people tell the truth about horsepower? do you?

[694spdRT]

we have not yet taken our car to the track but have had it rear wheeled dynoed at 610hp we will do an actual engine dynoe this summer b4 we take it 2 the track-MATT

Hmmmmmmmmm:

510hp to the rear wheels-MATT

i dont i just know it could waste the tires off the car in 3 blocks

the engine was originally dynoed by the last owner at 560hp we took off the 850 holley double pumper and swapped it with a 750 edelbrock and tweaked it a little and small changes to the engine .the guy who helped us with the engine is a charger fanatic/mechanic who told us that thse changes would increase our horsepower by 50.im not sure if it is all that but the car is alot faster then after we made the changes-MATT

Troy

Note to self...the search button on this site does work.   

[cudaken]

 Yea people seem to day dream to much and get caught up in the Mag trap. I have posted before what are Mopars made in real HP at the crank and most people want to hang me or there heads.

Bottom line, no matter what you claim what matters is who gets the win light.

Even the chassie dyno can be miss leading but great for tuning.

Bottom line, I have beat the shit out of more than one claimed 600 HP plus cars with a 11.8 68 Road Runner.

On the street a real 400 HP at the crank will get you in to the high 12's if you can hook up. Not numbers to impress people with, but the look of the 500 HP Bragging right losser? Pricless.

                  Cuda Ken

[69_500]

I have no idea what the horse power is in the 500. Its a pretty strong running 440, but it hasn't ever been torn down and it has 80K+ miles on it, so i'd say probably about 320.

But its  enough to make my son excited and its a Charger so that is all the matters to me.

[ChargerRT440]

lol it's liker my mechanics teacher trying to convince me that a hemi only had 375 hp(he's a ferd guy) And I just laugh.

[Silver R/T]

people can bs all they want but if they got dyno sheet I respect that

[Brock Samson]

  got mine dynoed at 503/510 with a leaky LS-6 Carb... but what it does in the car at the rear wheel is provide alot of fun! 
damn thing is slow in the quarter, wrong gears, a one legger,.. glove box popps open... but who cares?..  it sure sounds fast...  last thing i did was get a new tranny, bigger tires the rims and the Holly Street Avenger...
  still needs at least a dana and torque boxes...
ahhh,. the dream continues...
one day maybe even the duces, A/C and a OD... 
I just tell em 7.4.

[Lowprofile]

475 Cat putting 429 HP to the Wheels. Oh yea, about 1600 ft. lbs. of Torque. My daily Driver

[ChargerBill]

we have not yet taken our car to the track but have had it rear wheeled dynoed at 610hp we will do an actual engine dynoe this summer b4 we take it 2 the track-MATT

Hmmmmmmmmm:

510hp to the rear wheels-MATT

i dont i just know it could waste the tires off the car in 3 blocks

the engine was originally dynoed by the last owner at 560hp we took off the 850 holley double pumper and swapped it with a 750 edelbrock and tweaked it a little and small changes to the engine .the guy who helped us with the engine is a charger fanatic/mechanic who told us that thse changes would increase our horsepower by 50.im not sure if it is all that but the car is alot faster then after we made the changes-MATT

Troy

That's classic Troy...thanks for the laugh!

[Ghoste]

If the truth can't be told in a thread about telling the truth, then you have to really wonder.  I guess with so many dragstrips closing up and so many smaller shops with dyno's, it's become the new way of claiming how fast your car is.  Remember when everybody claimed their car went 12 flat?

[Just 6T9 CHGR]

we have not yet taken our car to the track but have had it rear wheeled dynoed at 610hp we will do an actual engine dynoe this summer b4 we take it 2 the track-MATT

Hmmmmmmmmm:

510hp to the rear wheels-MATT

i dont i just know it could waste the tires off the car in 3 blocks

the engine was originally dynoed by the last owner at 560hp we took off the 850 holley double pumper and swapped it with a 750 edelbrock and tweaked it a little and small changes to the engine .the guy who helped us with the engine is a charger fanatic/mechanic who told us that thse changes would increase our horsepower by 50.im not sure if it is all that but the car is alot faster then after we made the changes-MATT

Troy

DOH   ....Its possible he could have added some power adders to his latest dyno run HP #....no?


Anyhoo.....heres my #'s   I was kind of surprised at such a low # after hearing all the high #'s on here.   Im happy with it though.  It starts on the first crank, idles nicely, sounds great, can run on 93 octane, averaged 15mpg down to Carlisle and can still dust a few Mustwangs & ricers locally and my frineds '69 Z/28 Craparo 396 4 speed at the track!!

[firefighter3931]

Anyhoo.....heres my #'s     I was kind of surprised at such a low # after hearing all the high #'s on here.     Im happy with it though.   It starts on the first crank, idles nicely, sounds great, can run on 93 octane, averaged 15mpg down to Carlisle and can still dust a few Mustwangs & ricers locally and my frineds '69 Z/28 Craparo 396 4 speed at the track!!

Those are very respectable #'s that represent a measured power level, for that dyno, on that day with that particular operator. Different dynos will produce different results so comparing from one to the other is really pointless.....too many variables. I'd be willing to bet that yours is as strong or stronger than most on this board who've posted higher #'s...just my opinion. The combination of parts in this motor should produce an honest 420 crank hp and 500+ ftlbs of torque. I'm sure it's a blast to drive.  

Ron

[cudaken]

lol it's liker my mechanics teacher trying to convince me that a hemi only had 375 hp(he's a ferd guy) And I just laugh.

Hum, it closer to being right than you think. 67-71 Street Hemis stock not super tune made between 390 to 410 HP. Guess that is why he is the tracher.

That is from the old DC Racing manual.

                                                                                      Cuda Ken

[Brock Samson]

ok,.. your comments got me thinkin so I dug out my printout from 2/6/97.

     high torque   534.4  at 376.5 H.P.         3700 RPM

     high H.P.      418.7  at 439.8 Torque.    5000 RPM


                         

is that good?..

[Smoke20]

.....heres my #'s     I was kind of surprised at such a low # after hearing all the high #'s on here.     Im happy with it though.   It starts on the first crank, idles nicely, sounds great, can run on 93 octane, averaged 15mpg down to Carlisle and can still dust a few Mustwangs & ricers locally and my frineds '69 Z/28 Craparo 396 4 speed at the track!!

Those numbers arent bad, Chris. Besides HP is BS anyway. Torque is what moves the car and it looks like you have about 300 lb-ft of it.

[Jon Smith]

I tell people around 550hp at the flywheel but its a guess really
it runs low 12s with no traction, full weight car

[Ghoste]

Hey Chris, at least you've posted a scan of an actual dyno sheet instead of just making it up.   And no, I'm not implying that anyone here is liar.  Unless of course you are, in which case we are all on to you.

[Chargerguy74]

lol it's liker my mechanics teacher trying to convince me that a hemi only had 375 hp(he's a ferd guy) And I just laugh.

Hum, it closer to being right than you think. 67-71 Street Hemis stock to super tune made between 390 to 410 HP. Guess that is why he is the tracher.

That is from the old DC Racing manual.

                                                                                      Cuda Ken

What is all that closer to 500hp talk going around? Wonder what kind of dyno those numbers were from.

[Afflyer]

When I show the "Mistress", I tell people when they ask about the horsepower of my 440, I tell them that when it rolled off the line, it was 350 horses.  Take 15 horses off for the power steering pump and it's basically 335 horses- but I've yet to dyno the engine for a true number.  I won't dyno it until the engine is completely rebuilt.

As you all here may or may not know, my 440 has never been rebuilt.  It had new freeze plugs installed when it was placed in my Charger, before I bought her, but that's all.  I don't know how much or when I'll be able to do a really good rebuild.  When I do, I want to keep the stay with a mild or "purple" cam.  I just love the stock 440 sound with my Flowmasters.  I get more comments on the sound of my old 440 at the car shows, compared to some of the guys who beef up their engines with monster cams, etc..

Bradley 

[Baracda]

It would be a lot more useful for people to post thier car weight and thier MPH in the quarter.  Work over Time as they say...

jim

[cudaken]

 Chargerguy74, guess it was from the guys that said they had 450 HP and got there theeth kicked in my a Hemi. I as well have heard about the Hemi making 475 HP and all that happy stuff, but not stock as a rock. Well tuned and every thing perfect I could see 435 HP and may be a little more.

Seen the road test of Ronnie Sox's in a 69 and 1/2 440-6 Pack, 4.10 gears and 4 banger and I think ran a 12.8 stock? Give me a break, that sucker was blue printed and tune beyone anything most of us could dream about.

All well, drunk, wifes friend is over and no 440 to work on so I will post some real numbers. This is a spread. Take a 440 Highs will be 67-71 440's, lows will be after 71. Take it from there, these are the OLD DC Numbers not mine. At the flywheel and no Alt, PS or fan.

318 2 barrel 150-170 Hp
340 4 barrel and 6 barrel 275-290 Hp
360 4 barrel 225-245 Hp
361 4 barrel 240-270 Hp
383 4 barrel AFB, AVS and Holley 260-290 Hp Made me sick owing a 68 Road Runner rated at 335 HP
400 4 barrel TQ 240-270 and right with the 383
413 4 barrel AFB 280-305 Hp and does not count the Maxie
426 Wedge 4 barrel AFB 290-320 HP
426 Maxie Wedge S/S 475-500 HP, 11's stock out of the box, no warranty. Wonder why?
440 4 barrel AFB, AVS, TQ, Holley 270-330 HP
440 6 barrel 3 Holleys 340-370 HP
426 Hemi 8 barrel 2 AFB 390-410

Now a little math. Say you have a 4000 pound car and want a 101 trap speed you only need 340 Hp. If you are hooking good, not great, you will cut 13.20's. That is a little worked with snubber, clamps on the springs and 10" slicks. Power to weight is .085.

Let take a real 500 HP engine with the same rear end set up and it will hurt and 4000 pound car. Power to weight is 0.125 =116 MPH and that is 11.40's

If you look at the math, it is easy to see how a 270 383 can get into the 14.9's. You don't need as much real HP as you do bragging rights HP.

Besides, want to tell the bench racer next to you you run 13.2's with only 340 HP I do

Math may be off a little, few cam 2's where used during the math but will be pretty dam close.

                                Cuda Ken, wanting to kick some more 500 HP Chevys in the ball bearings again

  

[ChgrSteve67]

I am shopping for a Dyno shop to put my rebuilt drivetrain on to get it tuned and tested.

How much is it going to cost me to have my Charger strapped to a Chassis Dynamometer?

[HeavyFuel]

cudaken, you are my idol.   

['CUDA360]

Right cudaken....You beat me to it

In the back of the old direct><connection engine book is the drag strip dyno   The formulas work great as long as you know the weight of your car with you in it and the trap speed at the dragstrip

On my '72 'CUDA the W/P number according to the book is 10.4   That is a mopar car with an automatic transmission that goes 106 mph in the traps.

The formula looks like this....2850# (the car's weight) divided by 10.4 = 274 HP

So my 'CUDA goes 12:45 @106 mph with a 274 HP   

You can work the formula backwards like this
274 HP divided by 2850=.096            .096 is on another chart as a car that goes 106 mph with an automatic

Maybe not the most accurate but it works for showing improvement.
As the car gets faster by making changes like jets or even a whole engine change you can keep redoing the formula for each run to find out what is working and what is not.

Also, if you have friends with similar cars you can all go down to the track to find out who has the most horsepower according to the charts
Here are copies of the charts below. Try it on your car

[cudaken]

 360Cuda, I want my bible back

You must be a old timer like me to remember the old DC Racing program. I got my first bible around 1975 or so. When I got to the back and saw the numbers they posted I was pissed and knew there number's where wrong! Then I started to go to the strip with the then stock 68 Road Runner, hum 15.2 at 92 MPH? Started to read and learn and watched the ET drop and MPH go up. What I did went hand in hand with there math.

People just forget or don't realize the advertised HP is just that, advertisement to sell cars. When  our cars where made the big 3 where in a HP War, bigger HP numbers sold cars. Same with the car Mag's rag's, would you buy a Mopar mag that said a 440 only made 320 HP

What year is your DC Manual 360Cuda, my last one is 1978.

                         Cuda Ken

[MOPARHOUND!]

In the latest issue of Mopar Collector's Guide, Ray Barton rebuilt a 71 426 Hemi from a GTX to stock spec's (I'm sure he did some blue printing, and dyno tuning) and it made 498 horsepower at the crank.

Many a story out their about 426 Hemi's off the show room floor running poorly.  Talked to Mr. Norm of Grand Spaulding Dodge at this year's June www.hpacmopar.com club Mopar show in Kansas City, and he said getting the timing right and tuning the carbs made a world of difference on the car's new.  He said his dyno was one of the greatest investments he ever made.