3:55 or 3:27?

H

hookups333

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Jax Florida

Nov 1, 2005

#1

• Nov 1, 2005

• #1

Right now I have 3:73 gears and I don't like em. I was wondering about what RPM's 3:55 and a 3:27 will pull at 70 and 80 mph?

 

95snoozer

Active Member

Dec 14, 2002

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RCR

Nov 1, 2005

#2

• Nov 1, 2005

• #2

4.10s

 

95snoozer

Active Member

Dec 14, 2002

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RCR

Nov 1, 2005

#3

• Nov 1, 2005

• #3

0r 4.30s

 

95snoozer

Active Member

Dec 14, 2002

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RCR

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#4

• Nov 1, 2005

• #4

hookups333 said:

Right now I have 3:73 gears and I don't like em. I was wondering about what RPM's 3:55 and a 3:27 will pull at 70 and 80 mph?

Click to expand...

why not 2.73s or 3.08s?

 

nmcgrawj

Advanced Member

Sep 28, 2003

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#5

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Whats the goal of your car?

 

Mrgreen94gt

SIMMA DA NA!!!

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Nov 1, 2005

#6

• Nov 1, 2005

• #6

3.27 - 70mph=2006rpm
80mph=2293

3.55 - 70 = 2178
80 = 2489

3.73 - 70 = 2288
80 = 2615

4.10 - 70 = 2515
80 = 2875

4.30 - 70 = 2638
80 = 3015

All assuming a 245/45-17 tire.

 

final5-0

Mustang Master

Apr 6, 2003

6,817

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79

DFW Texas

Nov 1, 2005

#7

• Nov 1, 2005

• #7

hookups333 said:

Right now I have 3:73 gears and I don't like em. I was wondering about what RPM's 3:55 and a 3:27 will pull at 70 and 80 mph?

Click to expand...

Just plug in your very own values

http://www.allfordmustangs.com/Detailed/608.shtml

Grady

 

mo_dingo

20+ Year Stangneter

Aug 26, 2003

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Nov 1, 2005

#8

• Nov 1, 2005

• #8

95snoozer said:

why not 2.73s or 3.08s?

Click to expand...

yup, just go w/ 2.73's if you are that worried about highway RPM's.
Scott

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

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Nov 1, 2005

#9

• Nov 1, 2005

• #9

I would not even bother with the 55's - that is too close to what you have now.

I have always thought that 3.27's would be a nice highway (and compromise) gear.

Good luck.

 

BlackVert

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Oct 3, 2003

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Nov 1, 2005

#10

• Nov 1, 2005

• #10

i also have 3:73s which i don't like much either. they would be fine if i didn't drive much, but 1st and 2nd are too short for me for a daily driver.

i am going to 3:27s after i finish getting the kenne bell in.

 

nmcgrawj

Advanced Member

Sep 28, 2003

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Nov 1, 2005

#11

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• #11

BlackVert said:

i am going to 3:27s after i finish getting the kenne bell in.

Click to expand...

You wont need the gear then

 

CManT1914

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Feb 5, 2004

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Killeen, Texas

Nov 1, 2005

#12

• Nov 1, 2005

• #12

Go with 5.17's All you'd need was 5th gear then.

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

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#13

• Nov 2, 2005

• #13

CManT1914 said:

Go with 5.17's All you'd need was 5th gear then.

Click to expand...

Chris, you thinkin what I am? Boss Hoss.

 

H

hookups333

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Sep 20, 2005

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Jax Florida

Nov 2, 2005

#14

• Nov 2, 2005

• #14

Alright thanks for the input. I'll probably end up with 3.27's just cuz 3.55 is really close to 3.73.

 

Black95GTS

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Jan 8, 2004

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Nov 2, 2005

#15

• Nov 2, 2005

• #15

Well I had 3.27s... the reason I did was that my car used to be a woman's daily driver. One day she took her husband out and he noticed she left it in 4th on the highway. She told him that in 5th with the 2.73s she could never pass anyone and it was a dog, so he put in 3.27s for her.

He used the 3.27s because it was the last gear you can use and still correct for it mechanically by replacing the speedo gear with a real Ford gear. The car definately has good highway manners. Just enough in 5th to get it going but still turns a low RPM. Only problem is it is DEAD in the drone zone when cruising at 70-75 with my flowmasters.

Still didn't stop me from dropping 4.10s in though...

Adam

 

95COBRA241

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Nov 2, 2005

#16

• Nov 2, 2005

• #16

IMO 3.55's are the best all around gear. Much better than the stock 3.08's and you don't have too worry about running out of rpms with forced induction. Unfortunately, you have 3.73's now so you won't feel much difference in driveability at first.

 

94-302-vert

Active Member

Aug 16, 2004

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Nov 2, 2005

#17

• Nov 2, 2005

• #17

I have 3.73's and I LOVE my car on the highway.. I turn like 2500-3000 depending on how fast i want to go that day.. i still get decent mileage... I had the 2.73's and I don't think I would ever go back... These are better than teh 2.73's all the way from off the line in traffic or otherwise to being able to pass on the highway in 5th withouth much problem...

I would find a 2.73 or 3.08 car and go drive it before going backwards...

 

95snoozer

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Dec 14, 2002

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RCR

Nov 2, 2005

#18

• Nov 2, 2005

• #18

3.73 is a sissy gear if you are n/a

no excuse for going to a 355 or 327 unless you have a kenne belle, a turbo, or a huge stroker or blower motor that traps mid 120s

 

BPA

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Nov 2, 2005

#19

• Nov 2, 2005

• #19

getting a 6 speed tranny might help ya...

 

mricci

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Nov 2, 2005

#20

• Nov 2, 2005

• #20

Like someone else stated, with my 3.27's i am at about 2000rpms at 70 wich is right when flowmasters drone the loudest. That is with an auto though.