Find out which gears you have!

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05-03-2010, 09:49 AM

#11

4LSlvr

1st Gear Member

Thread Starter

Join Date: Nov 2009

Location: Duluth, Georgia

Posts: 63

nope, ime here and reading quietly

I tnd not to follow up my posts unless i have something of value to add, like when i get the chance to actually look and see what gears the car does have in it, i will post it up

05-03-2010, 05:04 PM

#12

4LSlvr

1st Gear Member

Thread Starter

Join Date: Nov 2009

Location: Duluth, Georgia

Posts: 63

which doesnt matter, b/c itll a be awhile, the car crashed into a guard rail today....

Quote:

Originally Posted by 4LSlvr

05-04-2010, 01:28 AM

#13

sdsguy

3rd Gear Member

Join Date: Dec 2006

Location: California

Posts: 500

Quote:

Originally Posted by 4LSlvr

which doesnt matter, b/c itll a be awhile, the car crashed into a guard rail today....

dude, that sucks. howd it happen?

05-04-2010, 08:41 AM

#14

Misbehavin

2nd Gear Member

Join Date: Feb 2008

Location: North Carolina

Posts: 316

Hate to hear that. Hopefully the damage wasn't too bad, and you can get it back on the road quickly.

05-04-2010, 10:33 AM

#15

Gene K

5th Gear Member

Join Date: Jun 2007

Location: Decatur AL USA

Posts: 2,176

Quote:

Originally Posted by iceguyb14

check your tire height and speed at certain rpms in a certain gear.. this should be able to tell you.

there are several "top speed calculators" online where you input rpm, tire diameter, trans gear ratio, and rear end ratio.

Not very accurate unless you are reading speed from a GPS and RPM from the Data Port.

My car for instance reads about 5% Fast in MPH although the odometer is dead on. Likely an indexing error (although I suspect its on purpose). Could easily make you think you have 3.55 when in fact you have 3.73.

Also its more accurate to use tire rpm instead of diameter to calculate engine rpm at a given speed.