Any good horsepower calculators?

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clutchdust

Millionaire Playboy
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Spent a lot of time last night looking for a horsepower calculator, like desktop dyno, unsuccessfully. All I can seem to find are the ones where you punch in your vehicle weight and ET, which would be fine except I'm trying to ballpark the engine I haven't finished building yet. I know I've seen them in the past, the ones where you punch in your CR, lift, duration, etc, etc, and it calculates a power estimate. Anybody using a good one?
 
clutchdust said:
Spent a lot of time last night looking for a horsepower calculator, like desktop dyno, unsuccessfully. All I can seem to find are the ones where you punch in your vehicle weight and ET, which would be fine except I'm trying to ballpark the engine I haven't finished building yet. I know I've seen them in the past, the ones where you punch in your CR, lift, duration, etc, etc, and it calculates a power estimate. Anybody using a good one?
Click to expand...

I didn't stay at a Holiday Inn Express last night but I do know that every engine ever put in a performance car is estimated/calculated to be 600+. I learned that listening to the participants tell about their cars on Pass Time :bounce:
 
Well, damn, I hate to disappoint you but I guess I'll be the first to drop a motor in that doesn't have those kind of stones. I'll be pretty happy if it cracks 400 at the flywheel.
 
Ozzy said:
I didn't stay at a Holiday Inn Express last night but I do know that every engine ever put in a performance car is estimated/calculated to be 600+. I learned that listening to the participants tell about their cars on Pass Time :bounce:
Click to expand...

:clap:That's so true, ergo, funny as all hell.
 
We can do like they do on CF; you list your parts and we'll estimate your horsepower. Then tell you to swap to AFR heads for an easy 100+HP increase.
 
On the Comp Cams web site, there's an interesting calculator for determining what cam you want. It askes for info such as CID, head type, valve size, intake, comp ratio, all the particulars you'd think would be needed for an HP calc. Then it allows you to choose different cams and gives you HP and Torque curves. Might be worth a look...
 
Thanks. That will get me close enough to what I'm looking for. Looks like a pretty good estimator. Don't think it's going to be super accurate, but if it's in the same neighborhood, I will be happy with that. According to what I have planned, I'm only 4hp off from what they suggest as the best combination. For $300 worth of cam, I'll pass on 4hp.
For what it's worth, they're estimating my combination at about 453hp. If I saw 350 at the wheels I would be blown away.
 
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Our calculator can give you the answers you're looking for :

The comprehensive horsepower calculator

Though I have designed it to work exactly the opposite to what most people think they want.

Most people want to tell a calculator what parts they have and have it guess at their current horsepower level ...

I've designed this calculator the other way around (on purpose).... tell me what your power goal is, I'll tell you how to get there ...

It is more valuable to help people reach their power goals, than it is to help them guess their current horsepower level and although it takes people quite a while to wrap their head around this concept.... when they finally do, they realize the value of what I've built here.

In the end, if you really think about it... horsepower is arbitrary ... saying I want to outrun my friend's 13 second WRX is concrete ... saying I want to have 320hp vs 360 vs 280hp is arbitrary.

The first stage of our calculator is a performance calculator that will help you find out how much horsepower is required (specifically for your platform) to hit a top speed, quarter mile, 0-60 or lap time... then we know how much power you really need... then we can tell you all the parts specs it takes to get you there.

Guessing at a specific power number is arbitrary. Allowing you to reach your power and performance goals is where it's at.

I'm surprised you didn't find us in your google search we are always a top 3 search result for 'horsepower calculator' and we have worked very hard to earn that position
 
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