Subject	Here's a hp calculator that I found amazingly accurate
Posted by	timz on May 05, 2005 at 8:07 PM
	This message has been viewed 105 times.
In Reply To	Why is "MPH the true indicator of power" in regards to 1/4 posted by Zirvana on May 05, 2005 at 04:14 PM
Message	[ http://www.speedworldmotorplex.com/calc.htm ] Just enter the weight including driver and the mph and it'll show the rwhp of your car. My car weight 3600lbs with me. With my old HKS 2530 turbos, I dyno'd 520sih rwhp and it trapped 122mph. The calculator indicates my car has 510rwhp. With current TD06 turbo, it dyno'd 745rwhp and trapped 139mph. The caculator indicates it's making 755rwhp. Pretty darn close I say! The point is, ET is very dependent on driver skill and how the car hooks. So it can be all over the place. However, the trap speed is very consistant even if the launch is screwed up! Bottom line, trap speed is a very good indicator of the hp/weight ratio of a car. 1990 Nissan 300ZXTT Twin Greddy TD06L2-20G 745rwhp 593rwtq no tuning (26psi no nitrous) 7.29@108mph 1/8 mile 10.9@139mph 1/4 mile (1.75 60ft) Waiting for stronger wastegates spring
Follow Ups	Why is "MPH the true indicator of power" in regards to 1/4 - Zirvana 16:14:40 05/05/05 Because no one can agree on a scale for the schlong - YugoBernie (NoVA) 16:16:48 05/05/05 Search on 'schlong' actually had some posts. Here is my - Zirvana 16:29:41 05/05/05 i think pe is just mgh and ke is .5mv^2 - komplexZ 16:34:18 05/05/05 Potential vs kinetic energy....ah physics!!! (n/m) - Zirvana 16:36:03 05/05/05 showoff - sfpearl300z 16:50:43 05/05/05 lol (n/m) - komplexZ 17:15:05 05/05/05 m x v is momentum - PhishZ 17:17:08 05/05/05 What happens when a Top Fuel dragster loses his engine in - 91tt (conversion almost done) 16:26:24 05/05/05 Ejectable engines. IT'S GENUIS! - Milo (Sport Z Magazine) 17:00:39 05/05/05 hey *sir* get back to work :P (n/m) - mousersix (San Antonio) 17:05:46 05/05/05 lol I should have used "blows" intead of loose ;) - 91tt (conversion almost done) 17:06:28 05/05/05 Here is why: - Marshall 19:49:27 05/05/05 Basic physics... F=MA F=HP, M=How heavy the Z is, - spotz 16:29:30 05/05/05 F=HP ?? (n/m) - PhishZ 17:17:52 05/05/05 because - Nazgul 16:29:38 05/05/05 It doesn't. Too many factors make the 1/4 mile inaccurate - ni[X]it 16:31:21 05/05/05 2nd. The lower time still wins. The rest must be - ConVerTT 17:06:54 05/05/05 Not me. The first to cross the finish line wins. (n/m) - Spongerider :) 17:08:26 05/05/05 err nope, if you fault the light you'll probably get to the - 91tt (conversion almost done) 17:12:22 05/05/05 Not in time trials. (n/m) - ZHOUND 17:15:31 05/05/05 Nope never said that, have you watched NHRA? - Spongerider :) 17:18:29 05/05/05 I know... but as I said "fault the light" (n/m) - 91tt (conversion almost done) 17:48:32 05/05/05 "The first to cross the finish lines wins". - Spongerider :) 17:57:00 05/05/05 I think 91tt is referring to bracket racing. (n/m) - ZHOUND 18:02:21 05/05/05 Doh! You get the gist of it though - LOL! (n/m) - ConVerTT 17:17:01 05/05/05 well, the driver skill and setup come in to play at launch - PhishZ 17:28:31 05/05/05 I'm not sure about the suspesion. - ZHOUND 17:46:17 05/05/05 The actual quote from Arnel is: "and remember MPH is a - Zirvana 16:47:05 05/05/05 Because dynamometer is not. - ZHOUND 17:12:10 05/05/05 this is very true, look at what I ran...... - suprakillinz 17:18:47 05/05/05 Just fyi 6mph is a big difference in power range. (n/m) - ZHOUND 17:48:51 05/05/05 6mph is about 100hp different in a 700+hp car. (n/m) - timz 20:33:07 05/05/05 It's what *I* use when testing shift points and mod changes - Scotts94z32 17:25:30 05/05/05 MPH measures how fast you can cross the last 2 cones >> - Arnel@Z32racing.com 17:40:52 05/05/05 Here's another answer. - ZHOUND 18:00:42 05/05/05 Because it indicates *average* power output. - Marshall 20:01:07 05/05/05 Here's a hp calculator that I found amazingly accurate - timz 20:07:13 05/05/05 wow, good ol speedworld, thats my fav track - Red October 01:47:57 05/06/05 They are 'ok' accurate. I'm sure the inaccuracies come with - Scotts94z32 10:21:03 05/06/05
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