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  • packratbimmer
    replied
    There are custom built dogleg 260 Getrags. I know someone who builds them. If anyone want his information feel free to PM me. They would be very expensive though.

    I agree - there is no reason to build a dog leg for an iX because you can only go down to 3.64. The car would feel like it was running 4.44 gears with a stock .81 5th gear.

    Yes, I seriously doubt it, but that does not mean someone has not done it though. I was merely posing a possibility to explain why someone could be taching 4,000 in 5th gear.

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  • The Dark Side of Will
    replied
    Originally posted by packratbimmer View Post
    That is correct.

    It is possible to build a 260 Getrag with 1:1 5th gear! I don't know what he has?
    You could maybe adapt a dogleg G265 from an M3... but why?

    The E34 525iX used the ZF 310 with 1:1 fifth, but the bellhousing pattern is at the 24V angle.

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  • nando
    replied
    ^Nope.

    Leave a comment:


  • packratbimmer
    replied
    That is correct.

    It is possible to build a 260 Getrag with 1:1 5th gear! I don't know what he has?

    Maybe Dirtyix is talking about revving 4,000 RPMs at 70 MPH in 4th gear. He should be going about 87 in 5th with 4.10 though.

    Speedo or tach may be off.

    Leave a comment:


  • The Dark Side of Will
    replied
    Originally posted by packratbimmer View Post
    That's interesting. I've never heard of a close ratio iX transmission but you never know. My calculator shows 3904 RPM with 1:1 fifth gear with 4.10 R&P.

    Anyone heard of a 325iX with a 1:1 5th gear?

    Maybe the tach is out???

    Here is the site I am using:

    http://www.crawlpedia.com/rpm_gear_calculator.htm
    325iX uses a Getrag 260 with 0.81 fifth, just like the RWD cars.

    Leave a comment:


  • Dirty325ix
    replied
    no I was just totally off

    but just to stir the pot I would have to side with 3162 at 70mph

    Leave a comment:


  • packratbimmer
    replied
    Looks like we agree 98% (3100/3162) LOL

    Depends on tire size I use 205 60 15 on my iX - 24.7 diameter. Stock 205 55 15 tires are 23.9" diameter

    Dirty325iX - try to use a phone app for speed as the speedos are not accurate on our cars for the most part . I use Spyglass.

    ‎Spyglass is an essential offline GPS app for outdoors and off-road navigation. Packed with tools it serves as binoculars, heads-up display, hi-tech compass with offline maps, gyrocompass, GPS receiver, waypoint tracker, speedometer, altimeter, Sun, Moon and star finder, gyro horizon, rangefinder, co…
    Last edited by packratbimmer; 04-27-2015, 05:06 AM.

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  • nando
    replied
    70Mph is more like 3100rpm. 75 is almost exactly 3500. 4000 is like 85.

    All ix 5 speeds have the same ratios.

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  • Dirty325ix
    replied
    damn I was totally wrong
    Last edited by Dirty325ix; 04-27-2015, 03:37 PM.

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  • packratbimmer
    replied
    That's interesting. I've never heard of a close ratio iX transmission but you never know. My calculator shows 3904 RPM with 1:1 fifth gear with 4.10 R&P.

    Anyone heard of a 325iX with a 1:1 5th gear?

    Maybe the tach is out???

    Here is the site I am using:

    Crawlpedia's RPM and Engine Speed Calculator will find your engine RPM at any speed given your transmission ratio, ring and pinion gear ratios, and vehicle speed.

    Leave a comment:


  • Dirty325ix
    replied
    Last edited by Dirty325ix; 04-27-2015, 03:37 PM.

    Leave a comment:


  • packratbimmer
    replied
    I am talking about driving iX's on the freeway with major Appalachian hills. 3.64 gears would allow cruising in 4th or 5th on major hills. Like I said, there is no "best of all worlds" with the stock 168 HP engine.

    Early 318i cars often came with 3.64 gears like the Euro 325iX manuals. I was merely stating that the 3.64 gears in a heavier US spec car would feel like an M10 318i.

    RPMs at 70 MPH w/ 24.7 tires

    5th gear with 4.10 - 3,162

    5th gear with 3.91 - 3,016

    5th gear with 3.64 - 2,808

    Leave a comment:


  • nando
    replied
    For the last time, 70mph is not 4,000 rpm.

    Why would you want your car to feel like an M10?

    Just get a 2.55, then you could drive on the highway in 2nd gear! :p

    Leave a comment:


  • packratbimmer
    replied
    I like the prospect of 3.64 and using 4th on the highway. It would feel just like an M10 318i. Not sure it would have enough power in the hills in 3rd though. Ever been on I70/I68 in Western MD? I can pull all those hills at 90 in my RWD 325i and still accelerate.

    I really hate 4th on the highway with 3.91 or even 3.73 for that matter. There are some pretty long steep hills on my routes. I can't even have bikes on my rack on a trip with a stock iX. 500 extra pounds and an AWD system would just love some extra power especially down low!

    I think euro 3.73 auto. gears and a stroker would be a good set-up.

    Leave a comment:


  • Dirty325ix
    replied
    Yea with 4.10s I am already in second gear just driving around the parking lot and it's loud as hell on the highway like 4k rpms at 70mph

    edit: yea that was totally wrong
    Last edited by Dirty325ix; 04-27-2015, 03:36 PM.

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