RPM, gear ratio, tire size calculator - The 1947 - Present Chevrolet & GMC Truck Message Board Network

61_FL_Apache · 02-04-2012, 05:51 PM

I found this calculator but doesnt have the gear ratio I am looking for.

http://vexer.com/automotive-tools/speed-rpm-calculator

Is there a better calculator out there to use?

**joedoh** · 02-04-2012, 06:22 PM

Quote:

Originally Posted by 61_FL_Apache

I found this calculator but doesnt have the gear ratio I am looking for.

http://vexer.com/automotive-tools/speed-rpm-calculator

Is there a better calculator out there to use?

http://www.unixnerd.demon.co.uk/revs.html

*blackedoutharley* · 02-05-2012, 06:10 AM

http://www.ringpinion.com/Calculators/

61_FL_Apache · 02-05-2012, 09:36 AM

Thanks! That helped out a lot.

**LostMy65** · 01-17-2017, 10:59 AM

I'm looking for the xls that was floating around these forums.

**The Rocknrod** · 01-17-2017, 12:57 PM

I have an xcel file for speed and stuff.

http://www.csgnetwork.com/rearendgearcalc.html
http://www.angelfire.com/fl/procrastination/rear.html

**LostMy65** · 01-17-2017, 03:23 PM

Thanks, found it in another thread.
I like this one too:

**The Rocknrod** · 01-17-2017, 04:56 PM

Quote:

Originally Posted by LostMy65

Thanks, found it in another thread.
I like this one too:

Yep that one is good for 1:1 ratio on the trans.

**LostMy65** · 11-01-2018, 03:24 PM

http://www.csgnetwork.com/multirpmcalc.html

**LostMy65** · 11-01-2018, 03:28 PM

Xls zipped up and attached

scoot_mcgrute · 11-01-2018, 04:21 PM

This one is my favorite. It was developed for the 4wd crowd but works the same for the 2wd crowd, just leave step 2 and 3 blank.

http://www.grimmjeeper.com/gears.html

**The Rocknrod** · 11-01-2018, 07:05 PM

Quote:

Originally Posted by LostMy65

http://www.csgnetwork.com/multirpmcalc.html

That one is my favorite online.

02-04-2012, 05:51 PM	#1
61_FL_Apache Who Me? Join Date: Sep 2010 Location: Royal Palm Beach, FL Posts: 4,067	RPM, gear ratio, tire size calculator I found this calculator but doesnt have the gear ratio I am looking for. http://vexer.com/automotive-tools/speed-rpm-calculator Is there a better calculator out there to use? __________________ Steve 1997 Tahoe LT 4D 2WD (DD) 2001 Blazer 4D 2WD 1961 Apache 10 (sold) 1965 C10 Stepper (sold)

02-05-2012, 06:10 AM	#3
blackedoutharley Account Suspended Join Date: Jul 2007 Location: Plumas Lake, Ca. Posts: 1,009	Re: RPM, gear ratio, tire size calculator http://www.ringpinion.com/Calculators/

02-05-2012, 09:36 AM	#4
61_FL_Apache Who Me? Join Date: Sep 2010 Location: Royal Palm Beach, FL Posts: 4,067	Re: RPM, gear ratio, tire size calculator Thanks! That helped out a lot. __________________ Steve 1997 Tahoe LT 4D 2WD (DD) 2001 Blazer 4D 2WD 1961 Apache 10 (sold) 1965 C10 Stepper (sold)

01-17-2017, 10:59 AM	#5
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,522	Re: RPM, gear ratio, tire size calculator I'm looking for the xls that was floating around these forums. __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

01-17-2017, 12:57 PM	#6
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: RPM, gear ratio, tire size calculator I have an xcel file for speed and stuff. http://www.csgnetwork.com/rearendgearcalc.html http://www.angelfire.com/fl/procrastination/rear.html __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

01-17-2017, 03:23 PM	#7
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,522	Re: RPM, gear ratio, tire size calculator Thanks, found it in another thread. I like this one too: Attached Images __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

11-01-2018, 03:24 PM	#9
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,522	Re: RPM, gear ratio, tire size calculator http://www.csgnetwork.com/multirpmcalc.html __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

11-01-2018, 04:21 PM	#11
scoot_mcgrute Registered User Join Date: Apr 2004 Location: Tigard, Or Posts: 503	Re: RPM, gear ratio, tire size calculator This one is my favorite. It was developed for the 4wd crowd but works the same for the 2wd crowd, just leave step 2 and 3 blank. http://www.grimmjeeper.com/gears.html __________________ 1966 Army Truck http://67-72chevytrucks.com/vboard/s...d.php?t=691778



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