HP estimate??

[bryanm]

My new motor goes on the dyno Monday, any guess what it will make. 408 CI windsor. 4.03 borex4.00 stroke. 12:1 compression, AFR 205 cyliner heads, 2.08 Intake 1.60 Exhaust, Edelbrock Victor Jr Intake, Mighty Demon 800 carb, MSD billet dist. solid roller .672 .669 lift, 260 270 duration at .050 106 lobe seperation. 1 3/4 Long tube Hooker super comp headers. I am hoping it will make at least 600 but I guess we will see.

[bjuice]

i think ya gonna be all over it give or take a few.
years back i had a 406 sbc 12 :1 , Cast world heads 2.05's ,portmatched vic/jr intake 750cfm carb..similiar camshaft ,aluminum rod motor and it made 609hp and 554 Tq

So it should be all over 600hp range IMO...lET US KNOW

[cepx111]

Dude, start a poll and see who gets the closest, and who ever wins gets to give everybody else a nickname that they have to answer too for a week...lol


I'll say 611>Hp

[slickfuel]

I will say,.....

576 hp @ 6500rpm
532 ftlbs @ 5000rpm

[ashbros]

590 to 620 should have nice torque

[bryanm]

Well, I didnt get to dyno my motor because it is below zero here and the cold air intake on the dyno here comes from outside. It is going on the dyno the 21st of this month if nothing else unexpected comes up.

[TheYellaBrick]

DANG this global warmmm.....oops...CLIMATE CHANGE....... :shock: :shock: :shock:

[TopspeedLowet]

My guess is 410 uncorrected horsepower peak. The calculation is pounds of fuel per hour divided by the Brake specific fuel consumption right off your dyno sheet. That is the observed horsepower, before the sea level correction that the engine is NOT doing on the dyno.

[FullTimeRacing]

My guess is 410 uncorrected horsepower peak. The calculation is pounds of fuel per hour divided by the Brake specific fuel consumption right off your dyno sheet. That is the observed horsepower, before the sea level correction that the engine is NOT doing on the dyno.

Is that because it is a ford

[TheYellaBrick]

An interesting thing about Ford....REFUSED bailout money.....what are they ? RESPONSIBLE or something ?

[dparker]

530 HP

[TopspeedLowet]

My guess is 410 uncorrected horsepower peak. The calculation is pounds of fuel per hour divided by the Brake specific fuel consumption right off your dyno sheet. That is the observed horsepower, before the sea level correction that the engine is NOT doing on the dyno.

Is that because it is a ford
No, it's not a ford thing. It's a dyno thing. I can make any number show up after correction on your dyno sheet with bogus weather correction's and friction factors. This is how engine builders and marketers sell there engines and how they fudge the numbers, with barometer corrections The actual numbers or observed numbers that the fuel# and BSFC numbers give are what your torque converter sees and what you actually have to push your car down the track with. Not the corrected to sea level or mega sub sea level numbers you likely see on your dyno sheet. Take your weather station to the dyno and find the C.F. correction factor. You then multiply the correction by the observed #'s to get the unimportant sea level corrections #'s. This is how you can police your engine builder dyno operator. This info will save you from getting the wrong info to your torque converter builder and give you real world #'s. I used to work for a Lin/ Merc dealership in north palm beach florida in the late 80's and made a good living off ford back then. I think the Chevy guys are more likely to accept bogus numbers, because they all expect big easy horsepower that the builders publish. As a recovering Oldsmobile engine builder, I can tell you that I have had many 500 HP small blocks that out ran other guys 700HP dynoed engines. Go figure.
I would adjust my estimate of 410 to 450 if I could, but I will have to stick with the first card I played like every one else. The bore diameter is why I chose the 410 earlier.

[radicalz]

:D :D :D :D .....500-550hp....... :D :D :D

[ashbros]

TopspeedLowet

You are absolutely correct. I have seen this done more than once. Customers are unaware of this and only assume the dyno system is as correct as a calculator. Telling theirselves, It must be right because the dyno sheet says so.

I have also seen this used in a negative way as well with dishonest dyno operators.

I have seen the dishonest dyno operator run a motor knowing it is going to put out a low number, telling the engine owner after a few pulls on the dyno that he thinks his engine is capable of more horse power and if the engine owner would let him play with it for a day or so he will see what he can do. All the while the dyno operator knowing hes about to take this guy for a ride.

One or two days later the engine owner shows up and the dyno operator relucantly tells the engine owner He was able to get a little more power, I hope your happy with it. The dyno operator then indicates, Well I had to do this and I had to do that and this is going to cost you this and that is going to cost you that, putting the engine owner in an uncomfortable state,THEN>>>>>>>>>>>

The miracle dyno pull occurs, the engine owner is jumping up and down with the numbers his motor is making and he lays that wad of cash in the dyno operators hand.

EVERYBODY IS HAPPY BUT IT AIN'T RIGHT

[FullTimeRacing]

My guess is 410 uncorrected horsepower peak. The calculation is pounds of fuel per hour divided by the Brake specific fuel consumption right off your dyno sheet. That is the observed horsepower, before the sea level correction that the engine is NOT doing on the dyno.

Is that because it is a ford
No, it's not a ford thing. It's a dyno thing. I can make any number show up after correction on your dyno sheet with bogus weather correction's and friction factors. This is how engine builders and marketers sell there engines and how they fudge the numbers, with barometer corrections The actual numbers or observed numbers that the fuel# and BSFC numbers give are what your torque converter sees and what you actually have to push your car down the track with. Not the corrected to sea level or mega sub sea level numbers you likely see on your dyno sheet. Take your weather station to the dyno and find the C.F. correction factor. You then multiply the correction by the observed #'s to get the unimportant sea level corrections #'s. This is how you can police your engine builder dyno operator. This info will save you from getting the wrong info to your torque converter builder and give you real world #'s. I used to work for a Lin/ Merc dealership in north palm beach florida in the late 80's and made a good living off ford back then. I think the Chevy guys are more likely to accept bogus numbers, because they all expect big easy horsepower that the builders publish. As a recovering Oldsmobile engine builder, I can tell you that I have had many 500 HP small blocks that out ran other guys 700HP dynoed engines. Go figure.
I would adjust my estimate of 410 to 450 if I could, but I will have to stick with the first card I played like every one else. The bore diameter is why I chose the 410 earlier.


I was just tring to be funny. :lol: ,ma bad.


I only run my car at the track. It's more fun than a dyno.

[bryanm]

Well I just back home from my dyno session and I came up a little short of my goal. My motor made 580hp and 540 ft/lbs of torque. It ran great and sounded great. I guess we will see what kind of times it turns in my car which is what really matters. Hopefully it will run in the 10's.

[slickfuel]

slickfuel
APPRENTICE


Joined: 03 Mar 2005
Posts: 14
Location: Washington state
Posted: Thu Mar 05, 2009 8:06 am Post subject:

--------------------------------------------------------------------------------

I will say,.....

576 hp @ 6500rpm
532 ftlbs @ 5000rpm
_________________
Smoldery Smokey Burnouts To You All


Well well well, guess I called that one,..
.But you know I wished you would have had bigger numbers.

the Slickster
8)

Give me the specs on your car and, the conditions you will run in
and I will give that a shot too...????

[cepx111]

Ok slickster you won!
now, whats my nickname?

Man that thing should see 10's easy, that's some pretty good numbers for a mild small ford.

Cp

[ashbros]

yeah Slick, you called that one but a couple of us were right on your tail.

[FullTimeRacing]

Man that thing should see 10's easy, that's some pretty good numbers for a mild small ford.

Cp[/quote]
I just did one of those HP calculators on my setup #3000 me in it ,30in tall tire 2 shifts 4.56 gear it says my motor makes 450 to 477

that running a 10.90 at 123mph

Bryanm should have one fast ford!