First I've seen a bunch of 200 whp evos on the boards... I thought stock evos pushed 240 give or take at the wheels. Is this normal or did some people just get screwed?

Secondly does anyone know when the 04 models are going to be out? I plan on getting my whatever (probably the evo) at the end of april beginning of may.

 

well last i talked to the dealer they tried to sell me an 03 as an 04, when I drove up in my own evo.... They had absolutely no clue what the 04 was going to contain.

The HP will vary greatly, due to thew stock evo's excessive knock... one can gain 10-15hp buy upping gas octane from 91-94 on stock cars... Also remember wheel dyno's vary so there is no fixed amount of hp the car makes... only general ideas

 

I also know that the temp and weather has something to do with the ratings, but on a good dyno in good weather with 94 octane fuel it should put up numbers close to if not right on 240 hp @ the wheels right? and torque around 240 as well??

 

Last time I Dyno'd I got 214 WHP and 233 Torque on a day with 97 degree weather and 93 Octane gas. The car is totally stock. Intercooler spraying brought it up to 225 WHP and 238 Torque. Shows just how hot it was. Draw your own conclusions.

 

The make of the dyno is a big factor too.

 

instead of looking at how much power ur car makes, look at how much power your parts make, that will never change... i mean your car on a dyno and your car on the street will make 2 different amounts of power so who relaly cares how much it exactly makes. Just notice how much gain your parts give you over a baseline run and always dyno tune on the same dyno if possible.

 

I just wanted to know if mitsu was selling evos with less power than the vast majority. All the input is appriciated.

Does anyone know about the 04's? In last months SCC i believe they had a vishnu or a vivid 04 evo. How did they get it if the 04's aren't out yet? I'm much confused.. please help..

 

The variations in horsepower generally represents the difference between two dyno's not two Evo's. The only valid comparisons are same day- different cars - same dyno runs. Vishnu has seen some fairly large differences between Evo's on 91 octane gas, but his dyno is in a different zip code relative to peak numbers. And contrary to dyno owner's claims of most accurate; there is no engineering or national standard in the US for dyno accuracy that I am aware of. The variables relative the entire system of processes occuring when a car is strapped on a dyno is well...... chaotic.


Plus many dyno owners do not perform routine maitenance nor practice any sort of calibration procedures on their equipment making a comparison between dyno's useless. One of the west cost car mags did a dyno comparison using the same car and found substantial variations based soley upon dyno differences. So pick a number and I would not be to concerned about large differences. I guess I'm arguing that the majority of differences are induced by the dyno process itself and not the cars.


Speedlimit......

 

I had my stock Evo dyno tested at 226.5 WHP. On that particular dyno at that location, I've heard of stock Evos testing anywhere from about 218 to 240 WHP. Weather (heat and humidity) is a factor. Fuel (brand and octane rating) is a factor. On a conventional roller dyno driven through the wheels, tire inflation pressure is a factor -- the lower the tire pressure, the more HP is wasted in flexing the sidewall.

I suppose that if you had a climate controlled dyno room (well ventilated of course), with the dyno owner supplying a fuel with a stable formulation (none of these "seasonal" gasoline blends which are so widespread now), and inflated the tires to near 40 psi for each dyno run, and if the dyno owner calibrated the dyno regularly, you could get repeatable results. For that particular dyno. It still won't directly compare to somebody else's dyno numbers.

 

Make/kind of dyno, octane rating both make big differences.