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Author
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Topic: Math Project
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LuvMy04GT
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Member # 4791
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posted
 
 
whats up guys, Im doing a math project for school on functions. I doing it on 1/4mi time, rwhp, and the weight of the car. It would be helpful if you guys can post your specs. Thanks a lot!
-Fonzy
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who
Posts: 369 | From: Milpitas, CA | Registered: Aug 2004
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Team SOLO
Chevy Powered Stang
Member # 722
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posted
Dont have my nitrous pass numbers for rwhp, but I do have my naturally aspirated info:
9.56
510
2650
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'88 Mustang Coupe: 8.02 @ 170
Posts: 3887 | From: Santa Clara | Registered: Jan 2002
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1fast281
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Member # 4670
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posted
13.8
298rwhp ?
4050lbs
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1998 Mark VIII LSC Black/Graphite
2005 Pontiac GTO Silver/Black
Posts: 578 | From: north bay | Registered: Jul 2004
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Team SOLO
Chevy Powered Stang
Member # 722
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posted
To help you out even more, I have my old car info as well. Again, naturually aspirated as I never dynoed the car on the jug:
12.0
298.7
2660
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'88 Mustang Coupe: 8.02 @ 170
Posts: 3887 | From: Santa Clara | Registered: Jan 2002
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JoeT
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Member # 298
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posted
what formula(s) are you using?
accounting for friction (drivetrain, wind, rolling) ? accounting for gearing, powerband?
using conservation of energy? derivations of work/time or?
KE=1/2 M*V^2 is a good place to start
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1984 Ford Tempo AOD--- RIP
Posts: 6785 | From: San Jose | Registered: Jun 2001
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LuvMy04GT
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Member # 4791
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posted
Thanks a lot guys! That just about does it. JoeT, Im just making a function graph with the times and lb/rwhp ratio.
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who
Posts: 369 | From: Milpitas, CA | Registered: Aug 2004
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1fast281
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Member # 4670
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posted
quote:
Originally posted by Team SOLO:
To help you out even more, I have my old car info as well. Again, naturually aspirated as I never dynoed the car on the jug:
12.0
298.7
2660
Wow, interesting comparison to my car. So if I can shed 1500lbs I can run low 12's NA... ![[Big Grin]](biggrin.gif)
BTW, I am using the Corral calculator, seems pretty accurate to me.
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1998 Mark VIII LSC Black/Graphite
2005 Pontiac GTO Silver/Black
Posts: 578 | From: north bay | Registered: Jul 2004
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Team SOLO
Chevy Powered Stang
Member # 722
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posted
quote:
Originally posted by 1fast281:
quote:
Originally posted by Team SOLO:
To help you out even more, I have my old car info as well. Again, naturually aspirated as I never dynoed the car on the jug:
12.0
298.7
2660
Wow, interesting comparison to my car. So if I can shed 1500lbs I can run low 12's NA...
BTW, I am using the Corral calculator, seems pretty accurate to me.
I dont trust the calculators. Both of my numbers above are done on actual rear wheel dynos. A light weight car and dead hooking helped me...it can help you too ![[Smile]](smile.gif)
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'88 Mustang Coupe: 8.02 @ 170
Posts: 3887 | From: Santa Clara | Registered: Jan 2002
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NO MANRZ
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Member # 566
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posted
quote:
Originally posted by LuvMy04GT:
Im just making a function graph with the times and lb/rwhp ratio.
If you want to plot both measured and theoretical plots on the same graph, use the formula ET=(5.825)*(weight/hp)^(1/3) for trap speed use MPH=(234)*(hp/weight)^(1/3) Convert all RWHP to flywheel HP first. lb/rwhp vs time should be a third order exponential curve.
Posts: 1938 | Registered: Nov 2001
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