get me 600 hp

[Dennis H]

What are your plans for the car? I've got 500 at the crank on pump 91. Pretty happy with the performance, tire smoke, and reliability.

 

[Budnicks]

a good roller or solid lifter camshaft with 0.550"+ lift
300+ cfm of flow
a well tuned carb/intake {gasket matched at a minimum & ported & flow tested is better} or Fuel Injection,
properly sized exhaust/header length & tubing size
a much hotter ignition system & ultra-low ohm resistance wires are far better than stock to burn all the extra fuel etc.
forced air induction will also help some
an electric water-pump & an electric fan will help some also
lightweight alum pulley's
a good quality SFI rated harmonic damper
light weight forged {pref.} pistons a min of 10:1 compression, low tension rings
crank tuned down to smallest diameter on the counter weights as you can get away with
something like 7" radius & knife ground & drilled too {makes for a lighter rotating mass}
quality rods & main bearings
good aftermarket rods & rod bolts, an H-Beam style is best,
longer if you can get away with it {better rod ratios}
4.15" stroker or 3.95" offset ground stroker crankshaft even will all help allot
even a 3.75" {413-426-440 crank} in a 400/451ci or 383/431ci combo can & will do it too,
with the properly matched/tuned parts...

I have a 383/479ci-6bbl 4.290" bore 4.15" stroke that make right at 590hp/600ftlbs-tq at 6200rpm
that's well it did before the refresh anyway, probably more now {extremely docile/street-able too},
only has a 0.520in/0.540ex hydr. roller it's an old Crane custom ground camshaft now,
small base circle 107*in ATDC & 117*ex BTDC @ 276*/284* duration
with 1.6:1 Crane Super Gold roller rockers {0.554in/0.576ex}, it doesn't have to be over-cammed,
3/8" Smith Bros. cup & ball custom longer hardened push-rods,
Crane retrofit hydraulic roller lifters, bushed lifter bores {it was an old block with lots of miles}
{SOLID ROLLER is better yet}
Zero deck {appr. 10.8:1 comp.} Diamond Pistons {they were Venolia's orig},
4.15" Callie Crank 7" diam. knife ground drilled/lightened/ballance,
Platinum series 6.76" Rod
440Source lower end components, billet caps & girdle
84cc Eddys Ported closed chamber now flow 320cfm @ 0.600",
springs & retainers/locks to match my camshaft & style of driving
Mopar CEI Chrome Ignition & MP adj. CEI distributor & Taylor 40 ohm per/ft wires
custom made 1-3/4" to 1-7/8" step headers with Flowmaster Scavenger 4-2-1 & 3" collectors,
Milodon HV oil pump & 7" 7qt Pan,
I believe that my biggest choke point is my 6bbl, but it's tuned relatively well,
but I was willing to sacrifice some power for the 6bbl look & drivability of being on a 2bbl until I stomp on it...

this is an old build & just a street car too...

Blah Blah Blah, there are a ton of ways to get there...

there's probably 150 here in the Racers Hangout section alone

there's more than one way to skin a cat,
the cylinder heads are a really extremely important part of making,
any real HP, the short block is just a air pump, you can make near 500hp with 8:1 comp. 440 N/A,
if it's got the right matched parts
tuning, quality of machine work, round cylinders, attention to detail {blueprinting}
ring & head seal & all the little stuff, that makes a world of a difference...

not just throwing a combo together,
because some guy on the internet said so...

the person building your engine can make all the difference in the world,
if they pay attention to details & do all the right things,
if you don't know how to yourself {especially when it comes to the heads}...

I've built many engines, that make far more HP/TQ too...

"Fill your Library, Before you fill your Garage", to all that will listen...
I'd highly suggest to buy a few books on the subject at hand &
get the knowledge 1st, before you spend you hard earned $$$...

Good luck

 

[sam65]

thanks to all that have replied,this motor with a .590 mopar cam and performer rpm intake have been 10.80's in my 1963 belvedere @3300lbs.just thought I would get some ideas as that motor is out of the car and a indy sr headed 499 lowdeck is in it's place.might need a spare some day and it's winter so the wheels in my head are turning,not to mention i'm having shoulder surgery tomorrow so i'll have plenty of time to dream up plans.

 

[dsd1967]

Thats some nice dyno numbers. What are the specs on that cam if you dont mind me asking ? My EZ heads flowed 329 @ .600 on the intake and the Exh was about 223. Never dynoed my eng but by the et , mph and weight of my 63 it should be around 600 flywheel hp out of my 493. What car do you plan to put that eng in ? Ron

Ron,

The cam specs are below directly off the Hughes site. I'm using the 1.5 ratio...but it gives specs for 1.6 also.

It's going in a street duty 67 belvedere 4 door....I know....a 4 door....but the price was right and it is in great condition. It's getting a 4 speed, frames tied, a bunch of US cartool reinforcements all around, minitub, complete caltrac setup, 4 speed, strange 60 w/ 3:54 suregrip, WO/RO one piece fiberglass hood, buckets...and thinking about putting 66 charger rear buckets in it for a littlie bit of a cool factor. I'm building it to beat on it. I may make it to a strip eventually, but I'm about a year from getting it on the road.

Dave

 

[bobtile]

So...
You already know what you have?!

 

[daytona kid]

I would think that what he is wanting to do with the car would come into play here somehow. I plan on some street cruising and some strip running with my car but not a lot of either. I kinda think about it like I did with my ski/drag boat. I had an LS-6 454 with 10.5 pistons, so it would run nice on 92 pump gas while skiing, but also had a big/adjustable N2o squirter on it for racing. That way I wasn't using up/wearing out 700+hp just skiing/cruising, but had 700+hp when I went racing. Basically like having 2 motors, 1 mild and 1 wild.
N2o, love it!:headbang:

 

[dieseldazzle]

It went 10.80 but at what mph??

perfect world 10.80 at 3300 pounds is 600 flywheel hp approx.

looks like you nailed it congrats.

 

[383man]

Ron,

The cam specs are below directly off the Hughes site. I'm using the 1.5 ratio...but it gives specs for 1.6 also.

It's going in a street duty 67 belvedere 4 door....I know....a 4 door....but the price was right and it is in great condition. It's getting a 4 speed, frames tied, a bunch of US cartool reinforcements all around, minitub, complete caltrac setup, 4 speed, strange 60 w/ 3:54 suregrip, WO/RO one piece fiberglass hood, buckets...and thinking about putting 66 charger rear buckets in it for a littlie bit of a cool factor. I'm building it to beat on it. I may make it to a strip eventually, but I'm about a year from getting it on the road.

Dave

View attachment 224592

Thanks for your reply Dave. That cam is close to what I use as my solid flat tappet is a little more duration as it is 264 & 270 @ .050 and has .585 & .592 lift. Has a 110 LSA and I have it in on a 106 ICL which is what was recomended. And I use 1.6 rockers that puts the lift around .630. Good luck with your build as it sounds like it will be a strong runner. Ron

 

[coryjones]

Mike at MRL Performance at 989-845-1547 is someone that knows Mopar Engines. He can help you in any way. I just got my stroked 360 from there and is has done nothing but gain power. I have gone from 543 hp and 523 tq on his dyno to real close to 600 hp now. I really like what they made for me. Give them a chance.

 

[sam65]

I guess the calculator I used was set on wheel not flywheel horse power,i guess I need to set my goals a little higher.coryjones I am going to get in touch with mrl.

 

[cdr]

this is from wallace racing,,,flywheel hp

Your HP is 517.76 computed from your vehicle weight of 3300 pounds and ET of 10.8 seconds.

- - - Updated - - -

Your ET / MPH computed from your vehicle weight of 3300 pounds and HP of 600 is 10.28 seconds and MPH of 131.44 MPH.

http://www.wallaceracing.com/et-hp-mph.php

 

[dieseldazzle]

this is from wallace racing,,,flywheel hp

Your HP is 517.76 computed from your vehicle weight of 3300 pounds and ET of 10.8 seconds.

- - - Updated - - -

Your ET / MPH computed from your vehicle weight of 3300 pounds and HP of 600 is 10.28 seconds and MPH of 131.44 MPH.

http://www.wallaceracing.com/et-hp-mph.php

Where do you see that this is FLYWHEEL horsepower from Wallace calculators?

 

[Budnicks]

thanks to all that have replied,this motor with a .590 mopar cam and performer rpm intake have been 10.80's in my 1963 belvedere @3300lbs.just thought I would get some ideas as that motor is out of the car and a indy sr headed 499 lowdeck is in it's place.might need a spare some day and it's winter so the wheels in my head are turning,not to mention i'm having shoulder surgery tomorrow so i'll have plenty of time to dream up plans.

Good luck with the shoulder surgery

good luck in the future builds

 

[sam65]

the mph was 123.4.this car has 9x29.5x15 slicks with a 727,3500 conv.,4.30 gear .

 

[HT413]

Where do you see that this is FLYWHEEL horsepower from Wallace calculators?

I'm with you, this seems to me to be horsepower to the ground, not at the flywheel.

The equation Wallace uses is this:


I use similar equations when I teach my physics class all the time. It is just based on accelerating a certain mass a given distance in a given amount of time. That is done by putting horsepower to the ground and does not take into account drivetrain losses and assumes perfect traction.

 

[bobtile]

:iamwithstupid:

 

[HT413]

:iamwithstupid:

You sound like my wife. she prefers the term 'geniass'.

Can't say I disagree with her. :eusa_eh:

 

[bobtile]

I'm with you, this seems to me to be horsepower to the ground, not at the flywheel.

The equation Wallace uses is this:
View attachment 224791

I use similar equations when I teach my physics class all the time. It is just based on accelerating a certain mass a given distance in a given amount of time. That is done by putting horsepower to the ground and does not take into account drivetrain losses and assumes perfect traction.

I know all this stuff. I just don't like to spread knowledge frivolously.

 

[cdr]

Your HP computed from your vehicle ET is 465.99 rear wheel HP and 517.76 flywheel HP.

http://www.wallaceracing.com/hpcalculatorquarter.php

- - - Updated - - -

drag times math from mph is 500 flywheel

http://www.dragtimes.com/horsepower-et-trap-speed-calculator.php

 

[HT413]

So I did a little digging and stand corrected - this is an estimate of flywheel horsepower. Turns out it's apparently based on some studies over the past 60 years.

Interesting reading if you're a dork like me. And I know you are...

http://www.stealth316.com/2-calc-hp-et-mph.htm