How much rwhp.. ?

Panhead · Apr 4, 2011

I have rebuild my 72 cleveland with these new parts..

Intake. Edelbrock 75641 - Edelbrock Performer RPM Air-Gap Intake Manifolds - Overview - SummitRacing.com
Heads. Edelbrock 61629 - Edelbrock Performer RPM Cylinder Heads - Overview - SummitRacing.com
Cam 32-208-3 - Dual Energy

rockerarms COMP Cams: e=1630-16&Category_Code=UltraProMagnum
Pushrods... Trick Flow Specialties TFS-21408500 - Trick Flow® Chromemoly Pushrods - Overview - SummitRacing.com
ignition MSD Ignition 6200 - MSD 6A CD Ignitions - Overview - SummitRacing.com
MSD Ignition 8202 - MSD Blaster 2 Ignition Coils - Overview - SummitRacing.com
MSD Ignition 8477 - MSD Pro-Billet Street Distributors - Overview - SummitRacing.com

Hedman longtube headders
Edelbrock 1406 - Edelbrock Performer Carburetor
2400 stall converter & 9" with powertrax

All bearing e.t.c. has been changed

How much hp can i espect at the wheels
Thanks.
Sory if my english is bad

Panhead

robbz28 · Apr 5, 2011

What kind of pistons? Dish, dome, flat top? The link to the cam info isn't working for me as well. Whats the lift/duration on the cam?

Panhead · Apr 5, 2011

robbz28 said:
What kind of pistons? Dish, dome, flat top? The link to the cam info isn't working for me as well. Whats the lift/duration on the cam?

Hey..

Its flat top pistons 0.30

cam...

Intake Exhaust

Duration 275 285

Duration @ .050" Lift 219 232

Valve Lift: 0.515 0.541

Lobe Lift: 0.298 0.318

Link. http://www.compcams.com/Company/CC/cam-specs/Details.aspx?csid=852&sb=2

Thanks

robbz28 · Apr 5, 2011

This is just my estimate, but I would say about 420 flywheel horses and about 335 rear wheel horses. + or - 20 horses. I base this on the info you gave me and you usually lose approx. 20% of your horsepower to the rear wheels.

robbz28 · Apr 5, 2011

That is what your engine is capable of...you can easily lose 20 horses by just having the timing off or the carburetor not properly tuned, keep that in mind.

Panhead · Apr 5, 2011

robbz28 said:
This is just my estimate, but I would say about 420 flywheel horses and about 335 rear wheel horses. + or - 20 horses. I base this on the info you gave me and you usually lose approx. 20% of your horsepower to the rear wheels.

Thanks alot....

My car will be tested and tuned in on a Dynapack 4000 at 18 of april

Reime dynatestning.

Will ofcourse be back wit the results...rubhands

By the way....do you use a program to come up with that numbers

Panhead

robbz28 · Apr 5, 2011

Panhead said:
By the way....do you use a program to come up with that numbers

Panhead

All the programming is in my head, I have built quite a few motors and know what to expect. Also, I forgot to ask what rear gear ratio, but I assumed 3.55 or so. I would love to know the results, just to see how near/far I am.

dodgestang · Apr 5, 2011

Panhead said:
Thanks alot....

My car will be tested and tuned in on a Dynapack 4000 at 18 of april

Reime dynatestning.

Will ofcourse be back wit the results...rubhands

By the way....do you use a program to come up with that numbers

Panhead

Sorry...I'll offer a dissenting opinion so that you aren't too disappointed....not a chance of breaking 300 RWHP.

jerry S · Apr 6, 2011

a question

what transmission are you running?

Panhead · Apr 6, 2011

jerry S said:
what transmission are you running?

A good running FMX with quik shift

Panhead · Apr 6, 2011

dodgestang said:
Sorry...I'll offer a dissenting opinion so that you aren't too disappointed....not a chance of breaking 300 RWHP.

I will not be disapointed what ever the numbers will be....

But one thing are sure.... my car are much much faster and much more torque than with my old cleveland with 4v ironheads.

Panhead

jerry S · Apr 6, 2011

I am going to guess

that you might see a peak of 290-300 rwhp.

gregski · Apr 6, 2011

test it on a chassy dyno, estimated horse power is a bunch of bull

Panhead · Apr 6, 2011

gregski said:
test it on a chassy dyno, estimated horse power is a bunch of bull

Dynapack 4000 is not estimated hp.

Dynapack power measurement can be performed on 2-wheel drive vehicles, or RWD. Dynapacken consists of 2 electro-hydraulic devices are connected directly to thethe vehicle hub . This means that we get on indentifying features wheels that are 99.9% accurate and the problem with wheelspin never occur regardless of power in the engine.

It does not matter if you drive with studded tires or candy, and there are no inaccuracies in the readings due to temprature in the tires, or tires, the car must not be strapped or have x-tra weight in the trunk. We can do a test from my. to max. revs between 3 and 30 seconds, and we can slow the load of all revolutions.

Our dynapack 4000 can withstand load of over 1100 hp on 2-wheel drive vehicles over time, and this is hp at the wheels. The equipment is self calibrating against tempratur and humidity. We warehouses all our tests on the computer and we adjust for wideband lambda. (Censor showing percentage of air and fuel).

This shop even make test at real dragsters

Reime dynatestning.

Panhead

Panhead · Apr 21, 2011

Here is the result of my Dynatestning.
I am very pleased with the results ...
See the difference before and after setting.
And it is true RWHP ..

jerry S · Apr 21, 2011

so what do I win?

looks like around 295 rwhp. I guessed right so what is my prize?

jerry S said:
I am guessing that you might see a peak of 290-300 rwhp.

Nice numbers for your set up. Congratulations.

jerry S · Apr 21, 2011

.

..

gregski · Apr 21, 2011

Panhead said:
Dynapack 4000 is not estimated hp.

Dude I never said it was, I was replying to robbz28 comment:

"This is just my estimate, but I would say about 420 flywheel horses and about 335 rear wheel horses. + or - 20 horses."

gregski · Apr 21, 2011

Panhead said:
Here is the result of my Dynatestning.
I am very pleased with the results ...
See the difference before and after setting.
And it is true RWHP ..

Please don't take this the wrong way, I am not trying to be a jerk, but that's not even 1 hp per 1 ci, ie the ol' milestone of engine building, you can beat that with a high compression 289, so nothing to write home about, more importantly how much did that cost you?

robbz28 · Apr 21, 2011

gregski said:
Dude I never said it was, I was replying to robbz28 comment:

"This is just my estimate, but I would say about 420 flywheel horses and about 335 rear wheel horses. + or - 20 horses."

I was somewhat close....10 horses off and just going off of what he had in it...i think with a little tuning on the carb and timing you could get anoter 10 to 15 horses out of it....and 300 to the rear wheels is not bad...you can put that around 375 at the flywheel.
There is not a dyno within 100 miles of where I am, we have to estimate, and are pretty good at it.

How much rwhp.. ?

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