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#11
06-17-2010, 11:08 PM
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Quote:
dont day gots scools in massachewsets?
__________________
 "As I lay rubber down the street, I pray for traction I can keep, but if I spin and begin to slide, please dear God protect my ride." -Amen US NAVY RETIRED 
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#12
06-17-2010, 11:10 PM
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ok if ya cant figure it out gimme the tire diameter (from top of tire to the ground)
then your rear ratio. ill tell ya what drive and driven gear set youll need. btw thats an odd rear ratio?
__________________
"As I lay rubber down the street, I pray for traction I can keep, but if I spin and begin to slide, please dear God protect my ride." -Amen US NAVY RETIRED
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#13
06-17-2010, 11:23 PM
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drive gear is 7
driven is 17.8 round off to 18 youll be off by about 1or 2 mph at 100
__________________
"As I lay rubber down the street, I pray for traction I can keep, but if I spin and begin to slide, please dear God protect my ride." -Amen US NAVY RETIRED
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#14
06-17-2010, 11:40 PM
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sorry i forgot the divide by Pi!! DOUCHE!!!!
A real accurate way to determine your tire diameter is to draw a line on the bottom of your tire, then draw a line on the ground which lines up with the line you just drew on your tire. Then move the car until the car makes one full rotation of the tire and mark the ground where the line on the tire is at the bottom again. Now measure the length between the two lines and divide by pi (3.14) and you'll have your tire diameter to use on the calculator (don't forget to use inches). This is the preffered method to use in determining your actual tire diameter.
__________________
 1998 Firebird:buncha parts thats used to make it go fast..... not so much anymore.  BAAAAAA!!!!!!
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#15
06-18-2010, 12:29 AM
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ok so pizza with pi i get 24.8 inches which is very close to what i get when i measure it..
DAWG thanks for figuring that out for me that is close to what i came up with as long as those gears would be the equivilent as getting 15 and 38? that is close to a 2.5 ratio....eh i guess not really but the factory drive gear is 15 so thats what i would like to run and the 3.23 idk if they are un-common i know thirdgen.org doesnt have the code listed but both my car and my dads have them
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 1986 Camaro Iroc z28 305 TPI 700R4 -hooker-edelbrock 1 5/8" shorty headers-1.6 roller rockers-52mm TB-3.23 10 bolt- ...191rwhp/280rwtq...14.97@90.5 2.04 60' 2005 GMC Sierra 2500 LLY Duramax -exhaust-gauges-leveled-wheels-tune-egr delete....339rwhp/637rwtq
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#16
06-18-2010, 12:50 AM
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3.23 is very common for your year car and your motor/tranny setup. only the V6's got higher gears without special option packages.
what size tire are you running? did you double triple check the air pressure before measuring. 10 pounds can take almost a half inch off of the tires hieght with a 50 aspect ratio tire.
__________________
1998 Firebird:buncha parts thats used to make it go fast..... not so much anymore. BAAAAAA!!!!!!
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#17
06-18-2010, 01:01 AM
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um i checked them at the begining of the season like two months ago i will check it again and re-try it
__________________
1986 Camaro Iroc z28 305 TPI 700R4 -hooker-edelbrock 1 5/8" shorty headers-1.6 roller rockers-52mm TB-3.23 10 bolt- ...191rwhp/280rwtq...14.97@90.5 2.04 60' 2005 GMC Sierra 2500 LLY Duramax -exhaust-gauges-leveled-wheels-tune-egr delete....339rwhp/637rwtq
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