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10-26-2004, 10:38 PM
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#1 |
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Registered Member
Join Date: Oct 2004
Location: NEW JERSEY
Posts: 41
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3.55 gears vs rpms
i'm think about putting 3.55 gears in my mustang and i was woundering in 5 spd where are the rpms at 70 mph it will be helpfull and if anybody know with 3.73 please let me know .thank you
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10-27-2004, 10:35 AM
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#2 |
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Gimme a Drink!
Join Date: Dec 2002
Location: NYC
Posts: 694
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Re: 3.55 gears vs rpms
well, first off i would say go w/ the 3.73's in the T5!!!!
as far as rpm's, 3.73 vs. stock 2.73 is basically like losing a gear. 5th will feel and have similiar rpm's to stock 4th, 4th will feel like 3rd, and so on. 1st gear is the most fun
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1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong! |
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10-27-2004, 10:50 AM
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#3 |
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Rearview Mirror Haze
Join Date: May 1999
Location: Huntsville, Alabama...a.k.a. "HuntsVegas"
Posts: 387
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Re: 3.55 gears vs rpms
A lil over 3000 rpm at 70 mph if I remember back correctly... it's been a few years since I had a five speed with 3.55's... go ahead with the 3.73- not much difference
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93 lx Notch 01 GT  ...the epitome of Murphy's Law |
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10-27-2004, 11:00 AM
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#4 |
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Registered Member
Join Date: Jun 2003
Location: USA
Posts: 25
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Re: 3.55 gears vs rpms
Drove cross country with 3.73 gears in 5th, with the cruise control set and never turned more than 2600-2700rpm at 75mph, and this is with tires that are too short 2255015, with a 60 series tire it would be around 2400-2600. I also got 24mpg too using the cruise control.
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10-27-2004, 12:26 PM
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#5 |
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Rearview Mirror Haze
Join Date: May 1999
Location: Huntsville, Alabama...a.k.a. "HuntsVegas"
Posts: 387
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Re: 3.55 gears vs rpms
Oh that reminds me... I also had a world class tranny in it... if that makes up the difference in any way on my reply... then again I'd listen to 90GT398 since he has them now.
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93 lx Notch 01 GT ...the epitome of Murphy's Law |
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10-27-2004, 05:12 PM
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#6 |
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Moderator
Join Date: Aug 2000
Location: Milan, OH
Posts: 2,699
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Re: 3.55 gears vs rpms
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Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!" |
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