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Author
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Topic: c4/rearend gears
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BlowN67
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Member # 4229
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posted
 
 
whats a good rearend gears for amostly street drivin car with a c4. 285/35/18 tires on rear.
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AIM gonein67 JOHN
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Posts: 9809 | From: Home of LARD | Registered: Mar 2004
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50DADDY
CAFords OG
Member # 3076
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posted
Just for reference,i had 4.10's in a 12 sec. street driven Capri.It was horrible!Couldnt hit the freeway much,and when i did the motor was singin.Had to roll in the granny lane and still revved to high for my comfort.3.73's would probably be more bearable.Just my .02$.
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"Im not stupid,i just act that way so i dont make you dummies uncomfortable."
"Old age and treachery shall overcome youth and skill."
Posts: 4827 | From: Suckramento | Registered: Jul 2003
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BlowN67
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Member # 4229
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posted
i was actually thinking in the 3.08 range or maybe even 2.73 i dont its something new to me never really had auto's
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AIM gonein67 JOHN
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Posts: 9809 | From: Home of LARD | Registered: Mar 2004
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Blind
2.3L
CAFords OG
Member # 3052
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posted
my brother in laws maverick has a C4 and 3.00 gears from factory, seems like a good match if you have a nice stall to get it moving.
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89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi
Posts: 8521 | From: Fairfield | Registered: Jul 2003
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Duncan Motors
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Member # 7045
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posted
325 is a good gear u might get a away with a 355 or somethin close cause of the 18 rims. just my thoughts. had the same set up with 245 45 17 and like it dont rememer the rpms at any speeds but 120 plus and the motor never went over 45 i think or it was close.
Posts: 6310 | From: Vallejo | Registered: Sep 2006
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BlowN67
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Member # 4229
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posted
i'm thinking 3.08's would be good cause my ultimate goal witht he car will be a street drivin turbo setup
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AIM gonein67 JOHN
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Posts: 9809 | From: Home of LARD | Registered: Mar 2004
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POWERED BY FORD
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Member # 9204
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posted
am gonna have some 3.08s for sale for cheap after i get some 3 73s for my cobra
Posts: 2204 | Registered: May 2009
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BlowN67
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Member # 4229
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posted
acutally will be looking for a complete sn95 rearend soon here
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AIM gonein67 JOHN
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Posts: 9809 | From: Home of LARD | Registered: Mar 2004
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Stangs R Us
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Member # 4495
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posted
3.27 / 3.08 either way
Posts: 3100 | From: sacramento | Registered: Aug 2005
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racsirx
CAFords OG
Member # 1710
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posted
26" tall tire-3:27 gears
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88 Saleen #564
88 GT 331 NOVI2000
88 Coupe TURBO 9.75@142
95 Cobra R #75-SOLD
06 F250
13 BMW AH3
17 GT350 #5556
GOD'S NOT DEAD
Posts: 20750 | From: Concord & Pittsburg, CA | Registered: Aug 2002
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87TURBO
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Member # 9257
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posted
i also have a c4 and i recoment 327
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turbo people
Posts: 403 | From: modesto/sanjose | Registered: Jun 2009
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BlowN67
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Member # 4229
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posted
i will be driving it a 105 mile round trip when i do drive it so low rpms on freeway would be nice
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AIM gonein67 JOHN
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Posts: 9809 | From: Home of LARD | Registered: Mar 2004
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onesicklx
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Member # 285
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posted
i run a c4 with 27" tall tires and run 3.27 gears...good luck
Posts: 1955 | From: san jose, CA | Registered: Jun 2001
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BlowN67
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Member # 4229
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posted
quote:
Originally posted by onesicklx:
i run a c4 with 27" tall tires and run 3.27 gears...good luck
do u have any mph to rpm's u can share so i can make some judgements on which to go towards
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AIM gonein67 JOHN
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Posts: 9809 | From: Home of LARD | Registered: Mar 2004
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uncle bill
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Member # 3953
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posted
john, go to tciauto.com their website has a racing calculator you can punch in your specs and get the info your looking for
Posts: 415 | From: antioch | Registered: Dec 2003
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BlowN67
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Member # 4229
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posted
quote:
Originally posted by uncle bill:
john, go to tciauto.com their website has a racing calculator you can punch in your specs and get the info your looking for
Those are some great calculators. Thanks ![[worship]](graemlins/worship.gif)
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AIM gonein67 JOHN
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Posts: 9809 | From: Home of LARD | Registered: Mar 2004
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wilit
Mustang Messiah
Member # 3367
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posted
I've got a C4 and 3.08's in my '68. With 245/45/17's it runs about 2500rpm at 60mph. 70mph is about 2750-2850rpm.
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"If a man hasn't found something worth dying for, he isn't fit to live." - Martin Luther King Jr.
Posts: 4793 | From: 37.78514° North 122.40100° West | Registered: Oct 2003
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BlowN67
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Member # 4229
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posted
ouch really... this is suckin big time. i guess a c4 isnt really made for daily driving.
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AIM gonein67 JOHN
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Posts: 9809 | From: Home of LARD | Registered: Mar 2004
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wilit
Mustang Messiah
Member # 3367
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posted
quote:
Originally posted by BlowN67:
ouch really... this is suckin big time. i guess a c4 isnt really made for daily driving.
I've got an AOD in the garage, however, I plan on moving up to 3.73's. I figured I'll probably be turning about the same RPM's per MPH with that combo.
As for daily driving, I drive mine to school and back every Wednesday. Its about 35 miles round trip and I get about 16mpg with a stock '85 longblock and basic bolt-ons like an Edelbrock intake, carb, and long tube headers.
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"If a man hasn't found something worth dying for, he isn't fit to live." - Martin Luther King Jr.
Posts: 4793 | From: 37.78514° North 122.40100° West | Registered: Oct 2003
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