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Re: Whats the best cruising gear?
[Re: Dartman75]
#320895
05/19/09 09:38 PM
05/19/09 09:38 PM
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Joined: Mar 2008
Posts: 571
Western NC
68Bullit
mopar
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mopar
Joined: Mar 2008
Posts: 571
Western NC
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Quote:
Besides on the highway, when you need to accelerate up a hill like you're on the level, just down shift because second gear on a tall rear is probably about where drive is on a 4.10 geared car, and having that extra drive gear ready won't limit your top speed for rounding that top attempting to lauching into near earth orbit
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Re: Whats the best cruising gear?
[Re: 70RT Charger]
#320899
05/20/09 11:46 AM
05/20/09 11:46 AM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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How tall of a tire? 26" tall or less, I'd probably go 2.76. 27-29" tall, 2.94, 30-32" tall, probably 3.23's
I had 3.55's and 27" tall tires and HATED it on the interstate (speed limit 70). was buzzing along at 3000-3300 RPM. I'd get a headache after about a half hour from the noise. I kept them but put in an A500 OD, and dropped it to an effective 2.45....
another option would be to use an A833OD (.73 OD) or a Passon OD (.8 OD). would turn your 3.91's into 2.85's or 3.13's effectively....
Last edited by patrick; 05/20/09 11:55 AM.
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: Whats the best cruising gear?
[Re: sthemi]
#320900
11/23/09 06:36 PM
11/23/09 06:36 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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hey i have a 77 dodge d100
im putting a 318 in it with 400hp and 400tq
with a 727 torqe flight and 9 1/4 rear end and im just using it for street put i also want it to be fast so what would the best gear ratio be for me?
thanks for eny of the repliys
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Re: Whats the best cruising gear?
[Re: dirtybee]
#320905
11/24/09 12:48 AM
11/24/09 12:48 AM
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Joined: Jan 2004
Posts: 27,347
Today? Who Knows?
1_WILD_RT
Management Trainee
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Management Trainee
Joined: Jan 2004
Posts: 27,347
Today? Who Knows?
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Quote:
just a thought but if you run an 8 3/4, what i do is cruise with my 2.76 and throw in the 3.91's for the track. after a few times it only takes about an hour, and by the way my car came withe 3.91 which i love, but when i put the 2.76 in for a road trip, i also loved them..... awesome, i'm gonna get one of everything, or at least a 4.10 or 4.30 or 4.56 with a spool with my spare housing.  
FWIW I do the same thing & to make it easier I added a drain plug to the axle housing... And I keep the correct speedo gear in the same box with 3rd member...
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Re: Whats the best cruising gear?
[Re: 1_WILD_RT]
#320906
11/24/09 01:20 AM
11/24/09 01:20 AM
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Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOrk !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
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Let me add ...... I don't think I would ever stick a steep-gear in my 62 ever again. The car is a 12-flat car now ...with the 2.76 gear .....and is an absolute BALL to drive on the street. The last time I drove to the track... 60 miles(120 miles RT) .... I stuffed a couple of Stangs, a Vette and Crumb-aro in the weeds.  As was said in Dirty Mary/Crazy Larry .... the top-end is uNlimited ! 
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Re: Whats the best cruising gear?
[Re: dOrk !]
#320907
11/24/09 02:42 AM
11/24/09 02:42 AM
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Joined: Jul 2003
Posts: 2,112
New Jersey, US of A
PlumCrazy73Dodge
top fuel
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top fuel
Joined: Jul 2003
Posts: 2,112
New Jersey, US of A
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All depends on what YOU are looking for out of your car while cruising...
Just to cruise and enjoy yourself with the occasional stomp - 3.23's
Cruising more locally with more stomping - 3.73's
The choice is yours
I have had 4.56 in my challenger...that did not last that long....I was tached out at like 50 mph
I run 2.76's now and it just dogs too much, but on the highway it keeps going and going and going...which is nice to drop the hammer and hit trip digits
73 plumcrazy challenger - 318/904, edelbrock performer 600cfm carb, performer intake and cam. Eddy Alum. Heads 3.91 locker, Doug's headers, accurate ltd. exhaust
73 Cuda - Triple Black 340 4 speed
MIKE
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Re: Whats the best cruising gear?
[Re: PlumCrazy73Dodge]
#320908
11/24/09 03:03 AM
11/24/09 03:03 AM
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Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOrk !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
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Quote:
I run 2.76's now and it just dogs too much, but on the highway it keeps going and going and going...which is nice to drop the hammer and hit trip digits
You need a BIG TORQUE motor to pull that gear.
When driving it real REAL easy on the street ...I can start-off in 3rd gear ...from a stop-light. ..... ......
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Re: Whats the best cruising gear?
[Re: nz383man]
#320911
11/24/09 10:56 AM
11/24/09 10:56 AM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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point of reference, that there's more to it than just gear ratio...all calculations assuming no converter slip.
at 70 mph, a 2.76 rear with a 26" tall tire is turning 2500 RPM
the same tire (26") with a 3.23 is turning 2900 RPM
the same gear (3.23) with a 28" tall tire is turning 2700, and with a 30.5" tall tire is turning 2500 RPM at 70, the same as a 2.76 with a short tire....
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: Whats the best cruising gear?
[Re: DaytonaTurbo]
#320912
11/24/09 11:01 AM
11/24/09 11:01 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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the overdrive in my ride w/4.30 gears makes it act like a 3.01 gear. also running 295/50/15 BFG drag radial.
the 3+:1 first gear makes it a killer on the street lol. cruises like a dream @ 80mph on the open road.
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Re: Whats the best cruising gear?
#320913
11/24/09 11:06 AM
11/24/09 11:06 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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what kind of overdrive unit are you using ? I know that when I buy my dart it will have 3.90 or 4.11 gears but I want to also use and overdrive cause I drive to shows.
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Re: Whats the best cruising gear?
#320914
11/24/09 11:17 AM
11/24/09 11:17 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
what kind of overdrive unit are you using ? I know that when I buy my dart it will have 3.90 or 4.11 gears but I want to also use and overdrive cause I drive to shows.
GM700R4.
cheapest/easiest/most reliable way to put an automatic OD in a MoPar. jmo.
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