News:

It appears that the upgrade forces a login and many, many of you have forgotten your passwords and didn't set up any reminders. Contact me directly through helpmelogin@dodgecharger.com and I'll help sort it out.

Main Menu

Horse power estimate?

Started by 70sixpkrt, May 08, 2007, 10:07:27 PM

Previous topic - Next topic

70sixpkrt

What do you think this combo will make on horesepower:

440 bored .030=446
KB 237 pistons .003 deck height
Eagle 4340 H-beam rods
Comp is 10.25:1
Eddy heads 84cc with stage 1 and bowl blend
Straightline Cam 234/242@.050 540/525 solid with 112 lsa (4* built in) installed straight up
6-pack aluminum manifold with stock carbs.
forged crank .010 under
comp pro-magnum 1.5 rockers with 3/8 Smith Bros. pushrods
MSD 8546 dist.


440-6pk, 4-speed, Dana 60 with 3:54  
13.01 @107.93 (street tires spinning all the way down)

jg68

Quote from: 70sixpkrt on May 08, 2007, 10:07:27 PM
What do you think this combo will make on horesepower:

440 bored .030=446
KB 237 pistons .003 deck height
Eagle 4340 H-beam rods
Comp is 10.25:1
Eddy heads 84cc with stage 1 and bowl blend
Straightline Cam 234/242@.050 540/525 solid with 112 lsa (4* built in) installed straight up
6-pack aluminum manifold with stock carbs.
forged crank .010 under
comp pro-magnum 1.5 rockers with 3/8 Smith Bros. pushrods
MSD 8546 dist.

I'll say with the eddy heads, around 550 HP, now this is just a guess :D

firefighter3931

Quote from: jg68 on May 08, 2007, 11:03:21 PM
Quote from: 70sixpkrt on May 08, 2007, 10:07:27 PM
What do you think this combo will make on horesepower:

440 bored .030=446
KB 237 pistons .003 deck height
Eagle 4340 H-beam rods
Comp is 10.25:1
Eddy heads 84cc with stage 1 and bowl blend
Straightline Cam 234/242@.050 540/525 solid with 112 lsa (4* built in) installed straight up
6-pack aluminum manifold with stock carbs.
forged crank .010 under
comp pro-magnum 1.5 rockers with 3/8 Smith Bros. pushrods
MSD 8546 dist.

I'll say with the eddy heads, around 550 HP, now this is just a guess :D


Probably closer to 500hp, inmo.  ;)


Ron
68 Charger R/T "Black Pig" Street/Strip bruiser, 70 Charger R/T 440-6bbl Cruiser. Firecore ignition  authorized dealer ; contact me with your needs

70sixpkrt

Hi Ron. Rich called me last night and gave me some dyno numbers. >:( I'm alittle disappointed with the numbers. I don't have the dyno sheet yet but he said it made 487hp/525tq. He did not give me the rpm numbers. He said there are a couple of variables why the hp is low.

1- The last couple of days it has been 90*+ here and that could hurt it.
2- His dyno machine is not set up for a 6-pack set up (he explained it but too long to type.)
3- It was brought up to 5900 rpm only because of an oil pan leak but the numbers were still climbing up.
4- this cam might be on the small size because of the way it was cut. I should of used the Comp 282S.
5- It is timed at 34*. At 36* timing the hp was going up but the torque was going down so he left it at 34*.
6- 6 pack manifold is restrictive.

He did like the torque though. I was expecting 500hp at least. Oh well. I'm going to pick it up next week and try to bring it to the track next month to see what it does.



440-6pk, 4-speed, Dana 60 with 3:54  
13.01 @107.93 (street tires spinning all the way down)

firefighter3931

Thats about where i figured it would be Ricky.  :yesnod:  Remember when we talked in Vegas about the 112* lsa grinds ?  ;) The wider lobes flatten out the power band....it doesn't hit as hard in the sweet spot but it does come in sooner and hang on longer.  :icon_smile_big:

I'll be interested to see what the dyno chart looks like. Personally, i wouldn't be disappointed at all with those numbers. The engine will idle very nice and make lots of manifold vacuum for your power brakes. The TQ number is excellent and your car is gonna launch HARD !  :devil:

Cams are a compromise between power and drivability.....yours has a very good balance between both.  :2thumbs:


The trick now is gonna be getting that badboy to hook at the track. You're making plenty of power for 11's once it's all dialed in.....it'll be an awesome running street car that will be very respectable at the track.  :icon_smile_cool:




Ron
68 Charger R/T "Black Pig" Street/Strip bruiser, 70 Charger R/T 440-6bbl Cruiser. Firecore ignition  authorized dealer ; contact me with your needs

supserdave

What do you guys think that a motor similar to that would gain with a roller cam? 40 hp?

70sixpkrt

I just got back from another pull and the torque went up to 531 and the hp went to 491. The numbers still wanted to climb. The reason why I went with a 112* lsa is because I did not want to hurt the street reliabilty with the 6 pack setup. I do however have 14 inches of vacuum.


440-6pk, 4-speed, Dana 60 with 3:54  
13.01 @107.93 (street tires spinning all the way down)

moparguy01

Is this on a engine dyno or a chassis dyno?

firefighter3931

Quote from: supserdave on May 09, 2007, 02:36:23 PM
What do you guys think that a motor similar to that would gain with a roller cam? 40 hp?

Dave, a roller could pick up 40hp but probably not with the same .050 duration and LSA. To get more out of it the cam would need to be upsized and that would change the engine's behavior considerably.  :yesnod:

It's important to remember the intended application ; 3.54 gears and a manifold vacuum requirement for power brakes.



Ron
68 Charger R/T "Black Pig" Street/Strip bruiser, 70 Charger R/T 440-6bbl Cruiser. Firecore ignition  authorized dealer ; contact me with your needs

firefighter3931

Quote from: moparguy01 on May 09, 2007, 05:51:33 PM
Is this on a engine dyno or a chassis dyno?


Russ, the motor is on an engine dyno at Mopar Engines West ; an outstanding shop with a sterling reputation.  :2thumbs:




Ron
68 Charger R/T "Black Pig" Street/Strip bruiser, 70 Charger R/T 440-6bbl Cruiser. Firecore ignition  authorized dealer ; contact me with your needs

supserdave

Either way, 525 lb ft is going to plenty to put a smile on your face!

70sixpkrt

I am very happy with 535 lb. ft. This motor is going to be pretty hard to hook at the track. I guess I should be happy with 491 hp. Ron I will post the dyno sheet when I get it. Thanks for your help. :2thumbs: I did pull the power booster for the brakes off because I was not getting enough vacuum. Now I might put it back on.


440-6pk, 4-speed, Dana 60 with 3:54  
13.01 @107.93 (street tires spinning all the way down)

moparguy01

Quote from: firefighter3931 on May 09, 2007, 06:17:31 PM
Quote from: moparguy01 on May 09, 2007, 05:51:33 PM
Is this on a engine dyno or a chassis dyno?


Russ, the motor is on an engine dyno at Mopar Engines West ; an outstanding shop with a sterling reputation.  :2thumbs:




Ron

Got ya. i figured it was a engine dyno but I've been wrong before. as rare as that might be.... :icon_smile_big:

no318

Those are CHASSIS #'S??!!!  I thought they were engine dyno #'s.  VERY impressive chassis #'s.

moparguy01

read above. he said it was on a engine dyno.

Challenger340

What's wrong with those numbers ?  Sounds like a VERY good engine, more than satisfactory to put a smile on anybodys face IMHO ! Outa drive like a champ too !
Only wimps wear Bowties !

70sixpkrt

I was just expecting 500hp. I love the torque number. Ron, my old cam was the Hughes 3038 which is 230@.050 517/535 Hydraulic with a 110* lsa. Do you think my current cam will be more noticable? Will I feel more power? Do you think it is a step higher?


440-6pk, 4-speed, Dana 60 with 3:54  
13.01 @107.93 (street tires spinning all the way down)

firefighter3931

Quote from: 70sixpkrt on May 10, 2007, 09:03:29 AM
I was just expecting 500hp. I love the torque number. Ron, my old cam was the Hughes 3038 which is 230@.050 517/535 Hydraulic with a 110* lsa. Do you think my current cam will be more noticable? Will I feel more power? Do you think it is a step higher?


Ricky....it's just a number, don't sweat it !  ;) Trust me, you wouldn't be able to feel the difference between 491 & 500hp  :icon_smile_big:

I Like solid cams...the valvetrain is more stable at higher rpms. I think this cam is an improvement over the Hughes grind....more lift to take advantage of the increased cylinder head flow as well as a more agressive lobe profile. You will notice a big difference, inmo. So will your back tires  :devil:


Ron
68 Charger R/T "Black Pig" Street/Strip bruiser, 70 Charger R/T 440-6bbl Cruiser. Firecore ignition  authorized dealer ; contact me with your needs

70sixpkrt

Thanks Ron!! :2thumbs: You have been a big helping hand. I will let you know what happens at the track. I am trying to get it done for a Mopar car show and drag race next month.


440-6pk, 4-speed, Dana 60 with 3:54  
13.01 @107.93 (street tires spinning all the way down)

firefighter3931

Cool.....get your self some sticky tires and have some fun ! I wouldn't be surprised to see your car pick up 10mph in the 1/4 !  :icon_smile_big:

Post those dyno #'s when you get a chance  ;)



Ron
68 Charger R/T "Black Pig" Street/Strip bruiser, 70 Charger R/T 440-6bbl Cruiser. Firecore ignition  authorized dealer ; contact me with your needs

Just 6T9 CHGR

I think you're close enough to say "the engine is pushing 500 hp @ the crank"  :cheers:

Sounds like a great combo there.  I would be very happy with those #'s
Chris' '69 Charger R/T


70sixpkrt

Ron here is a summary dyno sheet of all pulls. The 5th pull the hp was still climbing.


440-6pk, 4-speed, Dana 60 with 3:54  
13.01 @107.93 (street tires spinning all the way down)

Mefirst

Nice looking power curve :2thumbs:

/Tom


firefighter3931

Quote from: Mefirst on May 19, 2007, 04:23:56 PM
Nice looking power curve :2thumbs:

/Tom


:iagree: That should be a blast to drive on the street !!!!  :devil:  :drive: :drive: :drive:



Ricky, based on those results use 6k as your baseline for shift points when you take it to the track....pray for traction !  :icon_smile_big:




Ron
68 Charger R/T "Black Pig" Street/Strip bruiser, 70 Charger R/T 440-6bbl Cruiser. Firecore ignition  authorized dealer ; contact me with your needs

440mag

It would be nice to see how much difference it would make to take off the 6-pack and put on a Performer RPM and a 950 HP.  25 - 30 HP?

Sounds like a nice build.
440mag