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http://megahurts4.servebeer.com/forum/v ... c.php?t=48

:)

Honda V8

This is an attempt by honda to compete with the likes of Mercedes and BMW which already have the v8 luxory cars. I must say I like the V8 ACURA, way to go Honda.

i must say...with h.p. numbers like that...it should be a very impressive car. i would much rather have the new M5 tho. 500 hp and a 7 spd. smg tranny. :s_thumbup
TEDD

590 hp ->at 9500 rpm<-. Torque is 383 lb ft peak ->at 7500 rpm<-. I wouldn't get your hopes up on that motor coming anywhere near the street, it's a good bit of power, but it's really less than ideal for a car you'd actually drive to work. You need more low end grunt than that motor in it's current configuration can put out. It's good to see Honda making a move in the performance street vehicle category, though, I'm sure if it makes final production it'll be a well rounded car.

I was just about to say this is a 4L V8 and it's going to go in a honda street car like an accord and put out over 500HP?
not in your wettest dreams.

The new 2005 C6-platform Corvette has a 364cid / 5,970cc engine and it's putting out 400HP and 400lb-ft of torque @ 4000rpm, and it's a state of the art high performance street engine in a 3,200lbs car.

Let's look at this a little closer here.. 4L is the same displacement as my older Jeep's i6 motor. That's a 244 cubic inch motor. Comparing this to the 6L engine of a Corvette, You raelly think Honda is going to sell a 500+HP 4L car at the showroom?
I'll honestly be impressed if they can offer a V8 that puts out 300HP and even close to that same figure in torque. Then again, who'd really want a car with that much power if it's all at nearly 10,000rpm? When would you ever wind the car up that high, and for what reason? By the time you'd do it to race someone, they'd be at the next light waiting for you already, and your opponent's kids would probably be making faces at ya from the back seat of her station wagon.

After looking at the ratings here is my thought.

Ok it is rated for high horsepower at a high RPM. SO maybe this car will run at an abnormaly high RPM all the time. Here is the US were acustomed to low RPM high torque vehicles.

Well maybe this one will be the other way around...

Maybe it will idle at 3K RPM instead of our usual 750-1200 RPM...

Never know. Lets wait and see what happens if any. This could be a crackin car :s_thumbup

idle at 3000rpm? it'd get about 5mpg from gas then.
see the problem is any high rpm powerband car has to wind up to that powerband before it launches or hits the meat of it's power, and it's far more difficult to keep it in that powerband during shifts and such.
it's just not a feasible engine for normal street applications. It'd probably do well on a racetrack though.
totally different applications there... it's like comparing a street rod to a formula one car.

stick to being a electronics geek, not a mechanic.

Horsepower is the most overrated specification in the car industry, simply because people don't take time to balance out the different variables in making that horsepower. Instead of setting a horsepower goal, people should set a goal to make high torque in the RPM range you intend to use. The reason race cars are fast isn't because they have high horsepower, it's because they chose to apply torque in a higher RPM range(the RPM range that they use). If you increase torque in a high RPM range, horsepower will naturally increase as well. HP is simply a function of the equation torquexRPM/5454, 5,454 RPM being the point in which horsepower (mathematically) surpasses torque. Anywhere above 5,454 rpm, horsepower will rise at a very fast rate, and the higher you get in RPM, the less the HP rating indicates about the actual power (torque) you're making, because those higher HP figures come more from RPM than torque. There are two ways to increase horsepower, by either increasing torque, or increasing RPM. If you have 590hp at 9,000 rpm, it is still much less powerful than a motor that could make 590 hp at 6,000 rpm, because you wouldn't need as much torque to make 590hp at 9500 RPM as you would to make it at 6000 RPM, it's simply because of the RPM being a variable in the equation. That's why horsepower numbers can be misleading. The only benefit of running higher RPMs is that you can use a lower (numerically higher) gear ratio to go the same speed, equalling more torque multiplication. But while doing that, you're also revving the engine higher, increasing wear and tear on the engine, decreasing fuel mileage by a huge amount, and increasing emissions. Any motor that makes that kind of horsepower at that RPM will be using high lift, long duration camshafts and induction to match it, it isn't going to pass any emissions tests nor make it on the street. I'd highly doubt Honda would be willing to put their typical warranty on such a motor either.

if you want a better feel for the overall performance of an engine, try to get a HP and torque curve graph for the motor.
here's an example for the non-stroked version of the motor in my Charger:



that way you can see where both the hp and torque area at any given rpm range.