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Old 12-27-2002, 21:21   #1 (permalink)
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REvs at 100 kph

Hey all.

My Fairmont runs at a lazy 1950 or so revs at 100 kph.

My wifes Failane runs at 2500.

(Both are 5 litre, mine a 91 EB and hers a 93 NC).

Would this be because of the diff ratios? and what should they be reving at for 100 kph in standard trim.

Pete
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Old 12-28-2002, 00:38   #2 (permalink)
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Something is wrong. Wayne's NC Fairlane V8 is also below 2000 rpm. Has someone stuck a 3.7 diff ratio in the NC? :s5
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Old 12-28-2002, 00:48   #3 (permalink)
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hmmm ... will have to get under it and have a look.
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Old 12-28-2002, 01:20   #4 (permalink)
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Assuming tacho, speedo are correct, the NC has a 3.91 ratio diff, or perhaps it has a trans problem and isn't going into O/D?
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Old 12-28-2002, 01:25   #5 (permalink)
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We just had the trans replaced, and I thought that might it, but it hasn't changed (trans was stuffed).

hmmm .. might get the trans guy to have a look at it again.
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Old 12-28-2002, 01:25   #6 (permalink)
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Yes, speaking in IRC a better suggestion was given: transmission is failing to get into 4th gear. This is a problem that has been dealt with on these forums before. If need be I can do a search and dig up the appropriate thread.
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Old 12-28-2002, 01:30   #7 (permalink)
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That would be handy. I don;t think that this is the problem, but it could be.

Pete
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Old 12-28-2002, 01:59   #8 (permalink)
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http://discussions.fordforums.com/sh...threadid=24669
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Old 12-28-2002, 03:22   #9 (permalink)
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Re: REvs at 100 kph

Quote:
Originally posted by Baeddan
Hey all.
My Fairmont runs at a lazy 1950 or so revs at 100 kph.
My wifes Failane runs at 2500.
(Both are 5 litre, mine a 91 EB and hers a 93 NC).
Would this be because of the diff ratios? and what should they be reving at for 100 kph in standard trim.

Pete
Sounds like it isn't going into overdrive.
Easy way to check is to select between '3' and 'D' on the gear lever at a steady 100kph and see if the revs change at all.
If the revs don't change, you have a problem with the transmission.

Rick.
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Old 12-28-2002, 14:01   #10 (permalink)
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Same topic different Car.

What should my EA rev at if its in 'D' power is off, and is doing 100km. Thanks guys, i always feel it revs low but i dont know what other EA's do.

Thanks
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