R - P - M - Question how much will it change? - Moparts Forums

Register Log In Moparts Forums Moparts Question and Answer R - P - M - Question how much will it change?

Print Thread

R - P - M - Question how much will it change? #576984 01/08/10 09:35 PM 01/08/10 09:35 PM
Joined: Aug 2006 Posts: 814 ar. B bobs69 OP super stock
bobs69 OP super stock B Joined: Aug 2006 Posts: 814 ar.	If i change from 3.55 to 4.10 rear gears how much will the r-p-m change? I have 275-60-15 on the rear.Don't drive but around 2500 miles a year almost all local miles.I also race it sometime on eighth mile. It's 318 with 3 speed auto. Thanks

Re: R - P - M - Question how much will it change? [Re: bobs69] #576985 01/08/10 09:44 PM 01/08/10 09:44 PM
Joined: Jun 2006 Posts: 699 Cooperstown, NY jrlegacy23 mopar
jrlegacy23 mopar Joined: Jun 2006 Posts: 699 Cooperstown, NY	About 400 RPMs at 60mph. You are probably running around 2600 RPMs with 3.55, and you will go to about 3000 RPMs with a 4.10 [color:"#00FF00"]68 Fastback Barracuda with some stuff[/color]

Re: R - P - M - Question how much will it change? [Re: jrlegacy23] #576986 01/08/10 10:05 PM 01/08/10 10:05 PM
Joined: Dec 2007 Posts: 10,542 BROOK PARK, OH WILD BILL Senior Member of the Junior Dragster Club
WILD BILL Senior Member of the Junior Dragster Club Joined: Dec 2007 Posts: 10,542 BROOK PARK, OH	I had those same tires and 4:10 gears and 3k was what I was turning at 60mph

Re: R - P - M - Question how much will it change? [Re: bobs69] #576987 01/08/10 10:12 PM 01/08/10 10:12 PM
Joined: Nov 2006 Posts: 1,460 oklahoma F forphorty pro stock
forphorty pro stock F Joined: Nov 2006 Posts: 1,460 oklahoma	check it out http://vexer.com/68rt/speed.html

Re: R - P - M - Question how much will it change? [Re: forphorty] #576988 01/08/10 10:26 PM 01/08/10 10:26 PM
Joined: Aug 2007 Posts: 6,100 Valencia, España NachoRT74 master
NachoRT74 master Joined: Aug 2007 Posts: 6,100 Valencia, España	well thats around 15% variation on teeth relation so, you can expect the same on RPMs variation With a Charger born in Chrysler assembly plant in Valencia, Venezuela

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1