Horsepower - Page 2

FASTFATBOY · 01-30-2008, 07:53 PM

I will do both the above if it makes 500 at the flywheel.

David

FASTFATBOY · 01-30-2008, 07:56 PM

Quote:

Originally Posted by mdacton

Computed Engine HP is 683

add a sig with mods.....someone can figure it out or get close. The max head flow multiplied by 2.1 is about the max...and you will probly be under that

That formula only applies with a VE of near 100%, to get that you need a GOOD intake tract in front of the heads.

I make close to 600(580 ish?) at the flywheel, just guessing here. Not to say my combination is optimized by any means. But I got alot more bells and whistles compared to you.(The original poster)

David

1989TransAm · 01-30-2008, 08:04 PM

Back to the AS&M monoblade for a moment. I have it and a Holley 58mm throttle body it replaced. The AS&M Monoblade is slighty less than 58mm tall. So it is not a true 58mm monoblade throttle body. Maybe 56mm?

FASTFATBOY · 01-30-2008, 08:09 PM

Quote:

Originally Posted by 1989TransAm

Back to the AS&M monoblade for a moment. I have it and a Holley 58mm throttle body it replaced. The AS&M Monoblade is slighty less than 58mm tall. So it is not a true 58mm monoblade throttle body. Maybe 56mm?

Its a 1300 CFM Monoblade. Thats what I know it as, as do most.

David

rock1501 · 01-30-2008, 09:07 PM

wow that calulator put me at 706 hp maybe after I add my 250 shot.It must have known I am doing that

rskrause · 01-30-2008, 09:43 PM

Quote:

Originally Posted by mdacton

I will get you a hooker

LOL

rskrause · 01-30-2008, 09:44 PM

Quote:

Originally Posted by FASTFATBOY

I will do both the above if it makes 500 at the flywheel.

David

Double LOL

1989TransAm · 01-30-2008, 10:29 PM

"Its a 1300 CFM Monoblade. Thats what I know it as, as do most"

That is correct. Like others I have seen it posted as a 58mm monoblade which is not quite true. It is slightly smaller than a true 58mm monoblade would be.

Z-RATED94 · 01-31-2008, 04:16 AM

Quote:

Originally Posted by mdacton

I will get you a hooker

Anyone can get him a hooker, well almost anyone. Are you going to pay for said hooker? That's the important part.

Injuneer · 01-31-2008, 12:00 PM

Quote:

Originally Posted by silver95

Rich, First of all the engine is sitting on a stand and I still need a few parts. That is why I am trying to figure out the horsepower so I know what fuel injectors to go with. Second, why exactly do you think that this engine will not make 600 hp. You have no idea what my cam specs are or what compression that I am running.

OK.... we dont' know what we're talking about. I did ask for info on the head flow and cam selection, but you chose not to provide that info.

Let's go back to Step 1: What CID, "mean" compression ratio, and RPM at peak HP did you enter into the calculator to arrive at the 598 HP result?

Z28SORR · 01-31-2008, 12:48 PM

[quote=silver95;5149395]Rich, Second, why exactly do you think that this engine will not make 600 hp.[quote]

Because almost everyone grossly over estimates their potential HP.
And don't take it to personal, these guys are hard on everyone. Just tell them you want a 22yr old, virgin, red head, with 38D cup.

rskrause · 01-31-2008, 01:17 PM

[quote=Z28SORR;5151225][quote=silver95;5149395]Rich, Second, why exactly do you think that this engine will not make 600 hp.

Quote:

Because almost everyone grossly over estimates their potential HP.
And don't take it to personal, these guys are hard on everyone. Just tell them you want a 22yr old, virgin, red head, with 38D cup.

Bingo! 600hp from a conventional head NA SBC is possible but not easy or cheap. As David said, you can get up to ~2.1hp/cfm from an OHV motor. It is quite unusual to see that. It is approached by very high end race motors with very highly developed heads, intake, and valve train. Even though few specifics were provided, there is enough to know this is not going to be a motor like that. I do hope iot works weel for the OP and I was not trying to be harsh. He asked, I answered???

Rich

silver95 · 01-31-2008, 08:18 PM

These are my heads:
TrickFlow 210cc Lt1 CNC'ed SR Competition Heads from AI with 2.08/1.60 valves. 60cc chambers

Street/Strip LTx Intake Manifold Porting

AI Pro-Series Solid Roller valve train with custom cam

4.040 bore .027 head gasket.

The engine has been zero decked.

The cam duration is 26X/26X with around a .680 lift.

So with all of these experts what kind of horsepower should I expect. What do I get if I make 500hp at the flywheel?

FASTFATBOY · 01-31-2008, 08:33 PM

Quote:

Originally Posted by silver95

These are my heads:
TrickFlow 210cc Lt1 CNC'ed SR Competition Heads from AI with 2.08/1.60 valves. 60cc chambers

Street/Strip LTx Intake Manifold Porting

AI Pro-Series Solid Roller valve train with custom cam

4.040 bore .027 head gasket.

The engine has been zero decked.

The cam duration is 26X/26X with around a .680 lift.

So with all of these experts what kind of horsepower should I expect. What do I get if I make 500hp at the flywheel?

26x/26x ADVERTISED or at .050? If thats at .050...thats a monster of a cam.....I think I got a big cam with 254@.050.

Better have a good tuner, I didnt crunch the numbers...but in my head that looks like 13 to 1 static compression or close to it.

David

mdacton · 01-31-2008, 08:42 PM

Quote:

Originally Posted by silver95

So with all of these experts what kind of horsepower should I expect. What do I get if I make 500hp at the flywheel?

it should do that.....right at it.