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05-15-2008, 02:20 AM | #1 |
Scooby Guru
Member#: 36080
Join Date: Apr 2003
Chapter/Region:
South East
Location: Raleigh, NC
Vehicle:2020 Outback Touring Autumn Green Metallic |
Wheel weight vs. Wheel HP/Tq??
Anyone know of a spreadsheet to help calculate how much of a difference I should see with my Autocross wheels and tires on vs. my standard street wheels and tires??
I have the wheel and tire weights for both... Street 18" ICW Trident D7 wheels = 23.5lbs Kumho MX tires (225/40/18) = 22lbs TOTAL = 45.5lbs each * 4 = 182lbs (all four) Autocross 16" Mazda RX-7 FD wheels = 14 lbs Falken Azenis RT-615 (225/50/16) = 23.5 TOTAL = 37.5lbs each * 4 = 150lbs (all four) I looked online for a while but became frustrated before long... Anyone have any input?? ~ Chris
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05-15-2008, 02:22 AM | #2 |
Scooby Guru
Member#: 36080
Join Date: Apr 2003
Chapter/Region:
South East
Location: Raleigh, NC
Vehicle:2020 Outback Touring Autumn Green Metallic |
*Side Note*
With the Street wheels and tires on, the SVX made 191lb/ft wheel tq and 186 whp at a dyno day in Wilmington, NC a few months ago... ~ Chris |
05-15-2008, 09:54 AM | #3 |
Sammo Hung
Moderator Member#: 10613
Join Date: Sep 2001
Chapter/Region:
South East
Location: N Fla / S Ga
Vehicle:2002 USDM WRX WRB |
i did the calculations one day when i was bored.
search in jax mod squad...conservation of energy.. brings back horror storys of physics 1.. if i get bored today before lunch i might just make a spread sheet..but it may cause brain damage.. |
05-15-2008, 12:09 PM | #4 |
Sammo Hung
Moderator Member#: 10613
Join Date: Sep 2001
Chapter/Region:
South East
Location: N Fla / S Ga
Vehicle:2002 USDM WRX WRB |
conservation of energy..
potential energy + kinetic energy looking through my hand held for the formulas.. |
05-15-2008, 01:03 PM | #5 |
Subtly Outspoken
Moderator Member#: 238
Join Date: Sep 1999
Chapter/Region:
MWSOC
Vehicle:OG05 STi 51E |
Holy Math problem Chris....but you have jaxscuby(math wizard extraordinare) work on it...which BTW he loves for the challenge of the brain...
Bill |
05-15-2008, 01:13 PM | #6 |
Scooby Specialist
Member#: 72285
Join Date: Oct 2004
Chapter/Region:
South East
Location: Stalking Scoobydoll
Vehicle:2005 STi Wingless FLA Turnpike > I-95 |
There's one for a flywheel but maybe you can change it for wheels maybe?
http://www.wallpaperinstaller.com/scooby/flywheel.xls From this thread |
05-15-2008, 05:39 PM | #7 |
Scooby Specialist
Member#: 92003
Join Date: Jul 2005
Chapter/Region:
SCIC
Location: Tatooine
Vehicle:04 bicycle! |
are you talking about how much loss at the wheels you are going to see depending on how heavy your wheels are? it also depends on how the weight is distributed across the wheels. if its closer to the center then you will see less loss, if more weight is towards the edges there will be more loss
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05-15-2008, 05:44 PM | #8 | |
Scooby Guru
Member#: 36080
Join Date: Apr 2003
Chapter/Region:
South East
Location: Raleigh, NC
Vehicle:2020 Outback Touring Autumn Green Metallic |
Quote:
~ Chris |
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