ok everyone with a rb20 read this

Discuss the RB20, RB25 and RB26 series engines.
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ibzbro
Posts: 178
Joined: Tue Oct 15, 2002 11:58 am
Car: paintball, and cars

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Big news. the ka transmission parts will not fit the rb20 transmission. the syncros are all wrong and so are the gears. the ka transmission uses way smaller syncros and gears then the 20. so i am wondering if the 300zx transmission syncros and gears will work. like they say they will with the 25. if anyone thinks i am crazy or dose know what parts will fit let the rb20 family know. Also we need to know the flywheel step. i think it is .008 but i don't know if i am correct.

thanks.


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PROJECTRB240SX
Posts: 3673
Joined: Fri Jun 13, 2003 5:33 pm
Car: 1972 DATSUN 240Z W/ SR20DET

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DID YOU DO A KA24E OR DE transmission?

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ibzbro
Posts: 178
Joined: Tue Oct 15, 2002 11:58 am
Car: paintball, and cars

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a de transmission dose it make a difference.

BTW the GEARS are the same but the syncro rings are a different size. the gears for both the ka and the 20 are (26 teeth main shaft) and (28 teeth counter shaft).so they are the same.

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PROJECTRB240SX
Posts: 3673
Joined: Fri Jun 13, 2003 5:33 pm
Car: 1972 DATSUN 240Z W/ SR20DET

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NOT REALLY I JUST WANTED TO FIND OUT.... I HAVE BOTH A KA24E AND A RB20DET transmission APART I SWAPPED THE FRONT CASES BETWEEN THE TWO AND THEY WORK FINE. THE KA AND RB GEARS ARE THE SAME BUT THE REST IS TOTALLY DIFFERENT.... YOU WOULD HAVE TO ORDER INTERNALS IN OR HAVE THEM CUSTOM BUILT OUT OF KEVLAR OR SOMETHING LIKE THAT.

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Wulfgang
Posts: 908
Joined: Tue Oct 28, 2003 5:41 pm

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Projectrb240sx, did you ever install that transmission you are talking about?

vududoc
Posts: 313
Joined: Tue Aug 27, 2002 8:46 am
Car: drag drift autox
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the 24e transmission has the exact same bolt pattern and dimensions. i templated the housings. there is a dowel though that i am debating on as the template was done withing days of each other


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