Rb25de/t 5spd At Tiptronic And Harness

Post by **PROJECTRB240SX** » Mon Jan 26, 2004 4:07 am

DOES ANYONE HAVE ONE? I'D LIKE TO PURCHASE IT, THE HARNESS, AND THE STEERING WHEEL IF YOU HAVE THAT ALSO.

I'M GOING TO BUILD AND AUTO ROAD RACER SO I'M GOING TO BE LOOKING FOR THIS TIPTRONIC transmission..... IF ANYONE HAS OR SEES ONE THINK OF ME PLEASE!

Post by **NISMO_RB25** » Mon Jan 26, 2004 4:07 am

that will be pimp. I didn't even know it existed.

Post by **PROJECTRB240SX** » Mon Jan 26, 2004 4:07 am

IT COMES IN THE R34 RB25DE/T EQUIPPED VEHICLES.

I FOUND THIS OUT THIS WEEKEND AND NOW IT WOULD BE PERFECT FOR MY SETUP AND IT IS KNOWN TO HOLD 500WHP. I'M THINKING I CAN PROVE ALL YOU MANUAL IS BETTER GUYS WRONG WITH THIS SETUP, BECAUSE IT IS TRUELY A MANUALLY SHIFTED AUTO.

OHH AND GOOD NEWS FOR YOU LAZY GUYS OUT THERE 5ZIGEN (IIRC) HAS MADE A DUAL CLUTCH SYSTEM FOR TURNING A MANUAL transmission INTO A SEMI-AUTO. THIS SYSTEM INSTALLS A SECONDARY CLUTCH LINE THAT IS COMPUTER CONTROLLED THAT ALLOWS YOU TO SHIFT WITHOUT USING THE CLUTCH PEDAL.

Post by **rbsileighty** » Mon Jan 26, 2004 4:07 am

Weren't you trying to save weight? Shouldn't this auto/man setup weigh more than a normal manual?

Post by **PROJECTRB240SX** » Mon Jan 26, 2004 4:07 am

YEAH BUT I'M TRADING OVER TO AUTO FOR FROSTED FLAKES, AND I WAS GOING TO BUILD UP THE FOUR SPEED BUT I FOUND OUT THE TIPTRONIC IS AVAILABLE AND I'M GOING TO THAT. I CAN LOSE THE EXTRA WEIGHT ELSEWHERE. LIKE THE PASSENGER SEAT, AUTO SEATBELTS, POWER DOORS, A/C SYSTEM, REAR INTERIOR, FUEL TANK (TO FUEL CELL), STEREO, ETC.

MY VISION OF 2400LBS IS NOT GOING TO BE ACHIEVED IF I WANT TO KEEP THE CAR STREETABLE, SO I'LL JUST HAVE TO GET AS CLOSE AS POSSIBLE.

Post by **PROJECTRB240SX** » Mon Jan 26, 2004 4:07 am

WELL I GOT A LEAD ON A TIPTRONIC OUT OF AUSSIE LAND. THE GUY IS CHECKING SHIPPING. IF ITS AROUND A GRAND I'LL BE HAVING A TIP-TRONIC transmission.

Post by **dekand** » Mon Jan 26, 2004 4:07 am

pretty cool ... i also didn't know they existed but i'll stick to manual

Post by **Joe** » Mon Jan 26, 2004 4:07 am

dude how many projects have you planned?

stick to 1

damn

Post by **IvoryJ30t** » Mon Jan 26, 2004 4:07 am

yeah, but how reliable is that transmission going to be?

at least i know if i need a rebuild, i can stroll down to nissan for some 300zx syncro's and gears.

if that tiptronic fries a clutchpack, your gonna be waiting on a transmission from the other side of the world.

Post by **rbsileighty** » Mon Jan 26, 2004 4:07 am

IvoryJ30t wrote:yeah, but how reliable is that transmission going to be?

at least i know if i need a rebuild, i can stroll down to nissan for some 300zx syncro's and gears.

if that tiptronic fries a clutchpack, your gonna be waiting on a transmission from the other side of the world.

How bad would it be to have a more or less blown trans redone from a RB20DET?

If I took it to a trans shop for a rebuild, would they treat it as a Z trans?

Post by **IvoryJ30t** » Mon Jan 26, 2004 4:07 am

auto or manual?

Post by **IvoryJ30t** » Mon Jan 26, 2004 4:07 am

if you tell me what the model code of the rb20 trans is, i could tell you.

in my J, the shifter sits more forward than in the S chassis.

in japan they used the 300zx transmission for the manual conversions. what im gonna do is take a RB25 transmission, and a junkyard Z32 transmission, and swap front cases so the z32 transmission will bolt to the RB26. that way if i shred a transmission, i can replace it easily. i dont think that could work in a S chassis due to the differences in the shifter position.

the RB25DET and the Z32 share the same gear ratios, and distance between the mainshaft and countershaft.

Post by **rbsileighty** » Mon Jan 26, 2004 4:07 am

I was just thinking since I have a blown trans at home I might be able to use it. It is a manual trans, but I don't have the part # available (most likely the same as someone elses if they have it available) since I am in MI right now.

Post by **IvoryJ30t** » Mon Jan 26, 2004 4:07 am

because people say its not as strong as the rb25det trans, so it has to have different internals.

Post by **Nameless EJ6** » Mon Jan 26, 2004 4:07 am

Kamin wrote:dude how many projects have you planned?

stick to 1

damn

lol.. :Werd

Post by **rbsileighty** » Mon Jan 26, 2004 4:07 am

IvoryJ30t wrote:because people say its not as strong as the rb25det trans, so it has to have different internals.

Would a turbo Z32 trans bolt up to the RB (and be stronger)? If not, since I have the bellhousing from the 20, would that be interchangeable? This might be a good trans alternative.

Post by **IvoryJ30t** » Mon Jan 26, 2004 4:07 am

if you know the code, i would be able to say.

it would come down to the case, and the shaft spacing. the rb25, rb26[not r34], and z32 share the same spacing and gear ratios.

the z32 and the rb26 trannys differ by one letter in the model code. i read somewhere that a person building a cefero [sp?] wanted the shifter to be farther forward so they replaced the front case on a z32 transmission with the rb25 transmission.

supposedly the bolt pattern of the front case on the z23, rb25 and rb26 [not the r34 getrag] are identical. [I MEAN FRONT CASE TO CENTER BEARING PLATE, NOT BELLHOUSINGS] the bearing plate is also supposedly the same between the familys.

the gearsets, although the gears and ratios are the same, the shafts are different at the rear portions [z32 is short, rb25 normal, rb26 long to support transfer case]

i took a trip to the junkyard to look at a z32 trans, and compared it with pictures of the rb25/26 front cases. i would say that it is possible, and others have said it has been done.

im going to get an r34 clip, and im also getiing a r33 rb25det trans, because the case is different on the getrag unit. i am most likely going to need the shifter to be forward inorder for it to line up on my console so i will be able to say with absolute certainty when i do it.

Post by **IvoryJ30t** » Mon Jan 26, 2004 4:07 am

rbsileighty wrote:Would a turbo Z32 trans bolt up to the RB (and be stronger)? If not, since I have the bellhousing from the 20, would that be interchangeable? This might be a good trans alternative.

the z32 trans will NOT bolt directly to the rb's, but the case swap is supposedly a one-two operation. [see above]

Post by **rbsileighty** » Mon Jan 26, 2004 4:07 am

Well, I was able to get a hold of the guy I left the trans with back home and he said it has the following on it:

RB71C and below that #1

Post by **IvoryJ30t** » Mon Jan 26, 2004 4:07 am

hold on, let me check that.

Post by **IvoryJ30t** » Mon Jan 26, 2004 4:07 am

ok, thats not going to be compatible.

that transmission has a shaft spacing of 71 mm [its a FS5W71C transmission with a rb bellhousing]

the 300zx is an RS5R30A [vg bellhousing,81 mm shaft spacing] the rb26, rb25 transmission is FS5R30A [rb bellhousing, 81mm shaft spacing]

i would be willing to bet that you could take a KA transmission and bolt the rb20 front case to it.

Post by **rbsileighty** » Mon Jan 26, 2004 4:07 am

Would either be stronger/weaker than the other? I have never paid any attention to KA's.

Post by **IvoryJ30t** » Mon Jan 26, 2004 4:07 am

the internals are most likely identical.

do you know what the ratios for the rb20 5 speed are?

ill sniff it out if you dont know.

Post by **IvoryJ30t** » Mon Jan 26, 2004 4:07 am

im working on it. also, another reason i want the z32 transmission, is the auto and manual share the same mounts. the auto in my car is the auto from the 300zx, so it will be one less thing to worry about. i also want my shifter to sit correctly.

Post by **IvoryJ30t** » Mon Jan 26, 2004 4:07 am

low and behold, the gear ratios of your blown trans, the shaft spacing, and the output spline is identical to the 240SX transmission.

i would say that the internals are identical.

Post by **95silvia** » Mon Jan 26, 2004 4:07 am

this sound like what i have in mind for my car too just i didnt know the r34 triptronic system I was planning to use the system made to work on the z32 found here http://home.swipnet.se/e-solutions/ess-racing/ ... glad to see that some one else is looking at the auto RB WITH SOME FRESH IDEAS

Post by **Wulfgang** » Mon Jan 26, 2004 4:07 am

I measured the KA and RB20 trannies and found them to be a bit different. The distance from the bellhousing/engine flange to the thick steel plate that's in the middle of the transmission is the same on both trannies. However, the distance from the driveshaft flange to the same thick steel plate is significantly different.

I posted the measurements in another thread here:

http://www.nissaninfiniticlub....46993

Don't know if that helps any. Are you saying that I can go to the junkyard and get a KA transmission and with some case swaps make it fit my RB20 in S14?

Post by **IvoryJ30t** » Mon Jan 26, 2004 4:07 am

if there is a variation in distance of the trannies, i would say set the car up to use the KA transmission in the case of the RB20. this way if you blow the transmission up, you can take a stroll to the junkyard, instead of shipping from the other side of the world.

Post by **IvoryJ30t** » Mon Jan 26, 2004 4:07 am

but to answer your question, as long as your RB20 transmission is a 71C variant, i would say it is completely feasable.

Post by **rbsileighty** » Mon Jan 26, 2004 4:07 am

Even bellhousings, so therefore it is a direct bolt on? Or are you saying put the RB bellhousing on the KA to make it work?

Rb25de/t 5spd At Tiptronic And Harness

Rb25de/t 5spd At Tiptronic And Harness

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