Who has it and how does it work? I would love to see what my combo looks like "on paper". Also, who has DD thier engines and then hit the "real" dyno? How close were the #s? (I know about drivetrain loss) Scott
One of the Mustang sites was letting folks download a dyno program a while back. I don't remember the site... I DLed the dyno and the dragstrip pair. I had the Desktop Dyno at one time, but this program is much better, and it was free. It seems fairly realistic in it's predictions, but I have no real world proof. I modeled in my Z28 after it dynoed 318 rwhp, taking out drivetrain losses at 12%, it seemed on... but it was very tricky modeling a late model FI engine... so who knows.
I have it. I have never had a real dyno done. E-mail me your complete detailed engine specs and I will work it up for you. Seth redcometgt@aol.com
Ask, and ye shall receive! http://www.virtualengine2000.com/Download.htm Eric J UPDATE ******** UPDATE I downloaded this and it was just a basic engine calculator. If you want the real dyno functions you need to buy that download.
Seth, can you run mine when you have a chance. bore 4.030 stroke 3.000 head cc 60cc - well ported iron 1.78/1.45 cam 214/224 @ .050 -- 472/496 lift gasket + deck ht .038 piston dome +2.6cc gasket bore 4.060 (10.6:1 comp) Holley 650 DP on dual plane matched springs and roller rockers thanks, Eric J
Seth, cool! What do you need, exactly? I think I have all but deck height. Pretty close to 0 though.. Scott
The first DOS based version was within a couple of Hp and Tq from what my mustang produced on the chassis dyno (drive train loss calculated). The desk top dyno 2000 was a little more optimistic than what Tammy's Maverick produced (10-15 Hp). Still in the ball park though. I like the newer version better because it allows for head flow data. I am using it to design the perfect cam for my new engine (street Boss using Aussi heads). The only thing you really need to know is this is what your engine could produce with perfect fuel ratio and timing curve not what it really has in it's current state of tune.
Yeah, I use VirtualEngine 2000 and it is quite difficult. Requires alot of data to give you a calculation. What data numbers do you need to calculate HP, littlered?
i down loaded the program and installed it at work. umm...where to start...i dont know the exact specifics of my engine....maybe you could email me or icq or AIM me and explain the stuff but it is 79 block from granada bored .040 over 79 crank from granada stock rods 9.5:1 flat top pistons .477 / .488 xtreme energy XE256H cam iron heads ported ....3 angle valve job ....120# springs edelbrock performer intake 600 edelbrock carb .... .104 and .100 jets and .073 X .047 rods hooker headers 2 1/4 dual exhaust Complete MSD igntion system thanks..
Yes, the freebie download is just an engine calculator, unless you buy their upgrade. It is a useful calculator, but I thought it was the whole thing when I posted it. It has the best free compression calculator that I've seen. Even has input for the head gasket bore. For the compression calculator, you need to know piston bore and stroke, head cc, piston cc, head gasket thickness, head gasket bore, deck height.
I have desktop dyno and will be putting my car on a Chassis Dyno in the next week or so. Hopefully it'll give me an idea on how accurate the program is after we figure the loss through the drivetrain. Put a Holley carb on today, so after I tune it, it's gonna get flogged on the dyno. Preston
Engine Analyzer is a very good program. I have an older version of Desktop Dyno. Simply upgrading to a roller cam with the same specs is like 25hp all the way across the rpm range and that aint right. Headers + 30hp all the way... Engine Analyzer takes known numbers, flow numbers, frictional losses due to different bearing and main sizes, etc, to come up with a pretty accurate result. Even factors in accessory loss and windage and gives a ballpark on the timing per rpm depending on the octane. I still only use the free version 3.0, eventually I'll pony up and buy the newest release. Desktop Dyno no longer resides on my PC as it showed a 270* roller cam and headers producing over 400hp on an otherwise stock 302. It just doesn't work that way, I really wish it did.
