Dyno pull

[Motorhead350]

I found something very interesting on the web and I guess it works when you type in power at the wheels. It's like a dyno and it'll tell you what your supposed to run down the ole' 1/4 mile. My question is how much power usually makes it to the wheels? I heard someone on here say 80% of your actual power or something and I'm thinking about more then the Marauder so I guess it can differ, but does 80% sound right? If it is then my truck should run a 15.0 tomorrow, (according this the website) but I bet I'll be lucky to get a 15.7. So again 80% sound right? http://www.greatlakesdragaway.com/index.php?page=analyzers

[SergntMac]

Drive line loss on an automatic powertrain is customarily figured between 20 and 25 percent of the brake HP. I dynoed my first MM bone stock, 240 RWHP and 255 RWTQ. That's roughly 80 percent of the 302/318 advertised brake numbers, but I didn't do that math.

Some things your on-line calculator (and there are a lot of them) doesn't figure in, is traction and wind resistance. But, they are close enough to play with. Good luck at the track.

[Blackened300a]

Its acurate as far as a HP to weight ratio but there are other factors like a Torque convertor or rear end ratio that would knock off a few tenths.
According to this, on RWHP alone I should run 14.5@93mph

A stock Marauder will put about 240 RWHP and weigh about 4450 with a average sized driver, that comes out to be 15.4@88mph which is acurate for a stock Marauder.