4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

high rpms?

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Old Jan 8, 2006 | 07:44 AM
  #1  
bobjenkins's Avatar
bobjenkins
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Default high rpms?

Im trying to get good gas mileage so at 45 in the city I drive in 4th gear at 19k rpms

does any one else do this or do you guys ride in third or maybe fifth?

whoops forget to say 98gt stock

Old Jan 8, 2006 | 09:14 AM
  #2  
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Default RE: high rpms?

5th gear as soon as possible. I ride in 5th at 35mph.
Old Jan 8, 2006 | 11:03 AM
  #3  
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Default RE: high rpms?

i couldn't care less about gas mileage so i generally shift at about 2500-3000
Old Jan 8, 2006 | 12:52 PM
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Default RE: high rpms?

I believe you can shift into 5th at 45mph by the manual.
Old Jan 8, 2006 | 01:15 PM
  #5  
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Default RE: high rpms?

It should tell you in your owners manual. This is what mine says for a 2003.

Upshifts when accelerating (recommended for best
fuel economy)
Shift from:
1 - 2 18 km/h (11 mph)
2 - 3 31 km/h (19 mph)
3 - 4 48 km/h (30 mph)
4 - 5 64 km/h (40 mph)
Old Jan 8, 2006 | 01:18 PM
  #6  
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pj1010
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Default RE: high rpms?


ORIGINAL: bobjenkins

Im trying to get good gas mileage so at 45 in the city I drive in 4th gear at 19k rpms

does any one else do this or do you guys ride in third or maybe fifth?

whoops forget to say 98gt stock

I wouldn't recommend driving around at 19,000 RPMS dude. You should get your rear end checked out to. I think you might have 7.90s installed.
Old Jan 8, 2006 | 01:34 PM
  #7  
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nathansmith50
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Default RE: high rpms?

ORIGINAL: pj1010


ORIGINAL: bobjenkins

Im trying to get good gas mileage so at 45 in the city I drive in 4th gear at 19k rpms

does any one else do this or do you guys ride in third or maybe fifth?

whoops forget to say 98gt stock

I wouldn't recommend driving around at 19,000 RPMS dude. You should get your rear end checked out to. I think you might have 7.90s installed.
lol....totally missed that.

you might want to have your rev limiter checked out too.....lol
Old Jan 8, 2006 | 01:43 PM
  #8  
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Default RE: high rpms?


ORIGINAL: Voodoo

It should tell you in your owners manual. This is what mine says for a 2003.

Upshifts when accelerating (recommended for best
fuel economy)
Shift from:
1 - 2 18 km/h (11 mph)
2 - 3 31 km/h (19 mph)
3 - 4 48 km/h (30 mph)
4 - 5 64 km/h (40 mph)
I agree. I usually shift the gears at each respective speed
Shift to 2 at 20, 3 at 30, 4 at 40, 5 at 50.

I don't think I'd go 35 in 5th....
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