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Thread: Review: 4.0 Final Drive with TSX 6th Gear

  1. #1
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    Review: 4.0 Final Drive with TSX 6th Gear

    My current setup is the custom 4.0 final drive that clubrsx sells and the TSX 6th gear package I also purchased from clubrsx. My setup is pretty extreme and is not for everyone. One of the only reasons this setup works for me is because I have a K24 supercharged which makes PLENTY of down low torque... if I had a turbo k20 this would never work.. it is just too low in RPM for HWY speeds.


    Here are some mile per hour pictures for you. Yes I'm sorry my new cluster is in KMH but my laptop was up and on so I knew exactly how fast I was going!


    At 65mph so Interstate speed, I was cruising at an amazing 2700rpms!


    At Country speed, so 55mph I was at only 2200rpms!



    I'm sorry this picture is super blurry! I had to watch the road and try to take this shot which was much harder than balancing the camera on my steering wheel... but it shows speed and RPMs in MPH for those who can't convert KMH

    you can see at 61mph i was at 2476rpms :giggity:



    As far as the drop from 5th gear to 6th gear it is pretty intense... I didn't take a photo but now that I think of it I will... it is almost a full 1k rpm difference between gears. I would guesstimate around 850-900 rpms different. So you definitely notice you are in 6th gear lol


    This season is going to be great for gas mileage!

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  4. #2
    I <3 Purpul Shocker
    Si Speed 317's Avatar
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    Wow that's awesome, I wonder if that's doable for Si tranny's (06+)

    "As I lay rubber down to street, I pray for traction I can keep. But if I spin and begin to slide, please oh please protect my ride."

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    Senior Member 06_typeS's Avatar
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    KM's FTW!!!! lol
    Joe

    1991 Acura NSX


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    Formerly "Adm_rsx"


    PetefromtheStreets's Avatar
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    I'm very late but I may have to get the 4.0 for my setup. I'd still leave the factory 6th in tho. I mainly want to stretch out 1-4 longer. I'd prefer to trap the 1/4 mile in 4th compared to 5th like I was. We'll see how my 4.3 works then go from there. But deff a nice review. I'm liking the gas mileage part. Lol
    Tire slayer
    Breaking everything since 2011

  7. #5
    I <3 Purpul Shocker
    Si Speed 317's Avatar
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    I could definitely use the lower 6th gear for cruising, I'm at 3k at 65mph.

    "As I lay rubber down to street, I pray for traction I can keep. But if I spin and begin to slide, please oh please protect my ride."

    One-off SRT Top Mount Manifold - GT3076R
    My Ruckus Build

  8. #6
    BoostedK20 Sponsor Rbsjnh's Avatar
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    Quote Originally Posted by Si Speed 317 View Post
    Wow that's awesome, I wonder if that's doable for Si tranny's (06+)
    yes, the tsx 6th is the same as the z3, a 4.0 is definitely doable, but unless you are 350+ its not worth doing imho

  9. #7
    Newbie K20Tuned's Avatar
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    is this a oem 4.0fd? what kind? I am searching for one ...

  10. #8
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    ^it is not an OEM and the company won't tell me what it is from :/
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  11. #9
    Junior Member 1JZ_Type-S's Avatar
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    I've been looking at getting the TSX 6th for a while. Unless there are new numbers out, I should be around 3300 rpm @ 70mph, correct? I want lower rpm for both noise & fuel consumption & wouldn't mind the 4.0 final,but Spaz's setup is about 2000 rpm out of my boost range. lol.

  12. #10
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    I would love that for when I drive to Ga for School or Houston to see some family. I could cruise at 80mph and be at 2600rpm.

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