Virtual Dyno Room-Dyno Simulator
What vehicle weight,driver weight are you using? If you're car is lighter than you think it may be, it'll make your HP #'s higher than reality....hence a need to lower the Dyno Correction Ratio. You're roughly 10% off from the others, only reason I ask.
The 'average' Evo IX weight with no passengers is around 3260lbs I believe. Someone with a fairly stock weight Evo IX who has weight it at the track might need to chime in here for me. So add that in the VEHICLE WEIGHT box. Add the TOTAL passengers weight (including driver) in the OCCUPANTS WEIGHT box.
EvoM Guru
iTrader: (50)
Joined: Mar 2006
Posts: 9,675
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From: Tri-Cities, WA // Portland, OR
The 'average' Evo IX weight with no passengers is around 3260lbs I believe. Someone with a fairly stock weight Evo IX who has weight it at the track might need to chime in here for me. So add that in the VEHICLE WEIGHT box. Add the TOTAL passengers weight (including driver) in the OCCUPANTS WEIGHT box.
I'm FINALLY getting some free time to breathe.......so......I've decided to change my gameplan a little bit to accommodate just about ANY vehicle without having to constantly add vehicles to the list. This program will only come with Evo 7-10's as the default Vehicles since that was its original purpose (and so users know that the Evo community created this tool). I will create a VEHICLE LIST page that will hold the following columns of data for each vehicle.
There will be roughly 10 blank spaces where users can add their own vehicle info (and save it) to the list so ANY vehicle type can make use of this program. The items added to this list will appear in the 'Transmission Type' drop-down list on the Dyno Graph.(which I will be renaming 'VEHICLE TYPE') Below is just a rough example:
This will also eliminate the need for the USER OPTION for different gear ratios on the USER SETTINGS page.
- Vehicle/Transmission Type
- 3rd Gear Ratio
- 4th Gear Ratio
- Final Drive Ratio
- Frontal Area
- Drag CoEfficient
There will be roughly 10 blank spaces where users can add their own vehicle info (and save it) to the list so ANY vehicle type can make use of this program. The items added to this list will appear in the 'Transmission Type' drop-down list on the Dyno Graph.(which I will be renaming 'VEHICLE TYPE') Below is just a rough example:
This will also eliminate the need for the USER OPTION for different gear ratios on the USER SETTINGS page.
Most Truck Stops have drive-up vehicle scales and cost less than $10 to get weighed. Keep in mind that these scales are usually only accurate to within 15lbs. which is close enough IMO.
Some town landfills now weigh the vehicle BEFORE you empty your trash bags from it, then weigh it again to see how much weight you dumped. They can tell you your vehicle weight for you.
Race Tracks. Almost every race track will have a scale, though they aren't always available.
EvoM Guru
iTrader: (50)
Joined: Mar 2006
Posts: 9,675
Likes: 132
From: Tri-Cities, WA // Portland, OR
Without me in it. I looked again at my notes, and its 3300 lbs with a half tank of gas. I get my measurement at the local landfill. They claim the scale is accurate to within 10 lbs. The MR is supposed to be a few pounds heavier than the GSR, but the ETS intercooler I'm running weighs 20 lbs more than stock. The exhaust is not much lighter than stock, so I'd say a stock MR with half a tank of gas should come in at about 3280 lbs.
BTW, the amount of fuel in the gas tank can make a difference in the measured HP/TQ. 8 gallons of gas (usually how much it takes to go from half to full on my car) weighs about 50 lbs.
BTW, the amount of fuel in the gas tank can make a difference in the measured HP/TQ. 8 gallons of gas (usually how much it takes to go from half to full on my car) weighs about 50 lbs.
I know I personally account for it when I tune but I doubt most people do.If you entered the vehicle weight of a stock weight Evo with a full tank into the simulator, then did a run with an empty tank of gas, that could make it appear that your car gained nearly 5-8whp more, even though it didn't.
Last edited by Jack_of_Trades; Sep 2, 2009 at 11:44 AM.
Ok guys, I'm pulling my resources here....
I need to find the FRONTAL AREA and DRAG COEEFICIENT for the Evo 7's and the Evo 10's. If anyone finds this info, please post it up, as well as a link to your source if you wouldn't mind.
Thanks guys!
I need to find the FRONTAL AREA and DRAG COEEFICIENT for the Evo 7's and the Evo 10's. If anyone finds this info, please post it up, as well as a link to your source if you wouldn't mind.
Thanks guys!
