Rpm @ 70mph
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This is a discussion on Rpm @ 70mph within the New Member Hangout forums, part of the Community - Meet other Enthusiasts category; I'm looking to find out what rpm difference is between the 5-speed and the 6-speeds @ 70mph. I had a ...

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    Rpm @ 70mph

    I'm looking to find out what rpm difference is between the 5-speed and the 6-speeds @ 70mph. I had a 5-speed in my Baja and it was pushing 4K @ 80mph. Soob's AWD is unstoppable in the snow and I've been eyeing the new WRX, but I drive 400 miles a week and I just can't push a car that hard for that long a time. Can anyone with these trannies tell me what they're getting; rpm and mpg?

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    Without taking the WRX for a spin now I think it is somewhere between 2500 - 3000 in 5th. Not sure about the 6 speed STi, but is has to be lower than 4000.
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    hmm.. on the 6 speed on the STi i want to say mine is like 3.3k (or lower?) at 70mph, this is just a guestimate.
    i still havent decided which i like more, the 5 speed on the wrx or the 6 on the STi.
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    Quote Originally Posted by Dench View Post
    hmm.. on the 6 speed on the STi i want to say mine is like 3.3k (or lower?) at 70mph, this is just a guestimate.
    i still havent decided which i like more, the 5 speed on the wrx or the 6 on the STi.
    The 6 speed it the gearbox to have at it is built to withstand serious power. The 5 speed continues to get relatively minor upgrades from its original modest power handling capability. From late 2003 to present the tranny was improved to handle the power of the WRX more effectively.
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    Quote Originally Posted by Dench View Post
    hmm.. on the 6 speed on the STi i want to say mine is like 3.3k (or lower?) at 70mph, this is just a guestimate.
    i still havent decided which i like more, the 5 speed on the wrx or the 6 on the STi.
    Well if you decide that you like the 5 speed better then let me know b/c I'll trade you my 5 speed for your 6 speed

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    Registered User Dench's Avatar
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    heh, a sti with a downgraded tranny.. that would be interesting.
    what i ment was just daily drivewise. i like to shift and play with the gears so i dont mind the 6, i just thought in my old wrx i seemed to hang around in the same gear longer.
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    Registered User colorado_okie's Avatar
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    In my '04 with the 5 speed, I'm turning around 26-2800 at 70mph, I think. Cruise is usually set at 79-80mph, and thats about 3100rpm.

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    Quote Originally Posted by colorado_okie View Post
    In my '04 with the 5 speed, I'm turning around 26-2800 at 70mph, I think. Cruise is usually set at 79-80mph, and thats about 3100rpm.

    FWIW....

    Randy
    80 is my favorite highway cruising speed as conditions allow. I believe that is good for 3200-ish. My last car was a 2000 Prelude. It turned an annoyingly droning 4000+ at 80. The highway mpg at 80 was nearly the same for both - about 28.
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    Quote Originally Posted by colorado_okie View Post
    In my '04 with the 5 speed, I'm turning around 26-2800 at 70mph, I think. Cruise is usually set at 79-80mph, and thats about 3100rpm.
    +1 ive been doing a lot of highway traveling lately, thats exactly what i cruise at. i have a stage 4 wrx and i am getting ~26-27mpg 90% highway and ~23-24mpg 65% highway 35% city driving. those numbers include "spirited" on-ramp merges.
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    Quote Originally Posted by 04.SPT.WRX
    Not sure about the 6 speed STi, but is has to be lower than 4000.
    I put on ~1000 miles/month highway driving (68-72mph) in my '05, and the tach sits around 2800RPM going 70 in 6th, and 3500RPM in 5th

    In terms of mileage, I get ~22 on highway trips, and 18-20 other driving.
    Last edited by EJ257; 11-24-2007 at 09:03 PM.

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    Registered User fasteddie888's Avatar
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    My 08 WRX rpms are definately under 4000 probably around 3100 at 80 in 5th. I can get 27-29 mpg on the highway at 65-75 mph. You have to keep your eye on the speedometer because you can't even tell that you're doing 75-80 because it is very smooth and quiet.

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    Registered User Micah's Avatar
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    roughly 3200 @ 75mph in 6th (if I'm remembering correctly)
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    Would Never, Ever Say Something Bad About an Admin's Mom SonicWagon's Avatar
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    Quote Originally Posted by Micah View Post
    roughly 3200 @ 75mph in 6th (if I'm remembering correctly)
    thats an ej20 with sti 6speed? would the ej25 do the same RPM?
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    Quote Originally Posted by SonicWagon View Post
    thats an ej20 with sti 6speed? would the ej25 do the same RPM?
    yep, that's in my car with the 2006 STI transmission and the ej205

    I don't know if the ej25 would be the same or not
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    From Dallas, TX to Chicago road trip, I averaged 29 mpg.

    Granted I was going 65
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