Anyone who actually has a VII pls reply...
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Evolving Member
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Anyone who actually has a VII pls reply...
I am sure everyone has heard that the Japanese Evo VII has 276hp. And I am sure that most have heard that it actually has 300+, but Mitsu says 276hp to keep the DMV people in Japan quiet.
Does anyone know someone who has actually put the VII on a dyno?? Or at least the VI, because they very close in power?? I know they are AWD, but I hear they have special dyno's for that.
My point is: If it actually has 300+, and they do detune it before it makes it's way to the US, even if it looses lets say 25hp, we are still looking at more than 276. Any other thoughts?
Does anyone know someone who has actually put the VII on a dyno?? Or at least the VI, because they very close in power?? I know they are AWD, but I hear they have special dyno's for that.
My point is: If it actually has 300+, and they do detune it before it makes it's way to the US, even if it looses lets say 25hp, we are still looking at more than 276. Any other thoughts?
Evolving Member
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From: Hillsboro, OR
You can calculate HP by 1/4 mile times. Many web sites have a formula to calculate this. A stock EVO VI can run a 12.9 or better from what I have read. If you run the numbers, it needs more than 276 hp at the wheels to acomplish this.
Matt
Matt
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From: Budapest, Hungary
My Evo VII does the 1/4 mile 13.2 secs with a H&S exhaust system.
The oroginal car should be between 280-290 HP.
Do anybody know the formula, which with the power can be calculated from mass, acceleration etc?
The oroginal car should be between 280-290 HP.
Do anybody know the formula, which with the power can be calculated from mass, acceleration etc?
Evolving Member
Joined: Dec 2001
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From: Okinawa, Japan
Well I can't be for sure because there was never an actual Dyno done on my car but when I installed my boostcontroller with the power iD meter @ stock boost it registered max output at like 280 something. Since then I have added a Full blitz exhaust and turned up the boost to 1.20 bar and it registers @ 334hp. Whether or not the power iD meter is completely acturate or not I don't know but, I can definately tell a big difference with just those 2 mods. The only problem is I need to get rid of the stock ECU because it cuts out at 191 kph and it doesn't take long at all to get there. Tonight I am actually going to go run my car in the 1/4 mile and I will post what times I get tomorrow.
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Yes there are 4WD rolling roads. They measure the power at the wheels and the transmission losses and then calculate flywheel power.
However, it seems that that transmission losses calculation is somewhat of a guessing and that you only get an approximate number for flywheel power. Therefore, if the dyno says you OEM Evo has 295 or 265 or 280 bhp, it doesnt mean ****.
It could mean something if you go there with a friend of yours and compare the results for the two cars though.
However, it seems that that transmission losses calculation is somewhat of a guessing and that you only get an approximate number for flywheel power. Therefore, if the dyno says you OEM Evo has 295 or 265 or 280 bhp, it doesnt mean ****.
It could mean something if you go there with a friend of yours and compare the results for the two cars though.
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So for the most part when there is a write up on a car in a magazine, or HP stats stated by the manufacturer, are they talking about rear wheel HP or HP at the flywheel?? What about the total figure that the engine alone produces...these are 3 totally different measures right?
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No, they hook up the engine on a dyno and connect the flywheel to the dyno, normally without the clutch, using a propshaft. Then they make the dyno produce certain torque values and when the engine is steady at a certain rpm under fully open throttle, then the torque shown on the dyno is the torque produced by the engine. It doesnt get any more precise as far as I know.
This means that if you want to know the precise horepower and torque of your engine, you need to take it out of the car
However, I cant really see what it would matter. What matters is performance. Performance means how fast the car is on a quarter mile, half a mile, and how fast it is around the Tsukuba track or the legendary Nürburgring. The reason for performance and not BHP to matter is that I often read about Brabus Carlsson Mercedes' and Audi TTs that have 600 BHP or more but still need over 5 seconds for 0-60! These cars are powerful (over 600 horses!) but not performant (bad acceleration, slow around a track because of huge weight etc).
This means that if you want to know the precise horepower and torque of your engine, you need to take it out of the car
However, I cant really see what it would matter. What matters is performance. Performance means how fast the car is on a quarter mile, half a mile, and how fast it is around the Tsukuba track or the legendary Nürburgring. The reason for performance and not BHP to matter is that I often read about Brabus Carlsson Mercedes' and Audi TTs that have 600 BHP or more but still need over 5 seconds for 0-60! These cars are powerful (over 600 horses!) but not performant (bad acceleration, slow around a track because of huge weight etc).
Actual at the flywheel or crank power figures are good
Some get rolling road figures and project power figures at the flywheel based on what they believe to be appropriate drivetrain losses. This is bad! You know what happens when you assume...
Track performance is the ultimate test of a performance car's true mettle but Soleman20 never disputed this?
He is just curious as to how HP is quantified.
Some get rolling road figures and project power figures at the flywheel based on what they believe to be appropriate drivetrain losses. This is bad! You know what happens when you assume...
Track performance is the ultimate test of a performance car's true mettle but Soleman20 never disputed this?
He is just curious as to how HP is quantified.
Evolving Member
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From: Los Angeles, CA
If you guys want to know more about that stuff, just go to www.howstuffworks.com and click on the automotive category. Great website if you want to know more about your car and parts in it. I would reccomend it.
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Joined: Mar 2002
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From: Philippines
Evo HP
Stock Evo's generally get 1/4 mile ET's in the 13's. Here in the Philippines where it is very warm and humid-- hence bad for engine power-- stock Evo's do high 13's to low 14's. Though a really experienced drag racer launching the car at just the righ revs and powershifting the car (very hard on the tranny!) can do 13 flat.
On the dyno I frequent, a bone stock Evo does 210-212 HP to the wheels. We don't bother estimating flywheel HP because it's what gets to the road that matters. Plus the fact that I've heard so many different theories on how to estimate crank HP from wheel HP that it's not worth the effort!
My friend's HUGELY modded Evo puts down 470HP at the wheels (without NOS), and had a best ET of 10.9 secs.
Oh, and don't get me wrong-- I think drag racing an Evo is kinda missing the point of the car!
Cheers!
On the dyno I frequent, a bone stock Evo does 210-212 HP to the wheels. We don't bother estimating flywheel HP because it's what gets to the road that matters. Plus the fact that I've heard so many different theories on how to estimate crank HP from wheel HP that it's not worth the effort!
My friend's HUGELY modded Evo puts down 470HP at the wheels (without NOS), and had a best ET of 10.9 secs.
Oh, and don't get me wrong-- I think drag racing an Evo is kinda missing the point of the car!
Cheers!
