R154 Bellhousing with 13B Trans (Rear Half)?
03-22-17, 10:18 AM
#1
Certified RoTard
Thread Starter
R154 Bellhousing with 13B Trans (Rear Half)?
So I just became the new owner of a 2JZ-GTE non VVTi...
I really am on the fence about swapping it in my FC.
Yes, yes I know, blasphemy. Hate me lol.
Anyways, if I do go ahead with the swap I would need a R154 or W58 with the R154 bellhousing... Thats gonna cost alot.. Well the whole swap is but ya know..
Now I've seen a couple threads (mainly aussie ones) asking if anyone sells a R154 to 13B adapter plate, and sure enough - Products - Green Brothers Racing Ltd
They sell one for the R154 and W58.
Now please correct me because I'm sure I'm wrong because I know very little about transmissions, but using the adapter plate means that you would be using the R154 input shaft, clutch, TOB, on a 13B flywheel ?
From what I've read there are 21 splines on a R154 and 22 on a 13B trans... How does that work. Plus the Input Shaft could be a totally different length...
But it's been done!?!
So to further my Title Question, if you can use an adapter plate and mount an R154 up to a 13B, can you not reverse it and use a 13B trans w/R154 bellhousing on a 2JZ?
Yes it would require a totally redesigned adapter plate, but I have a highschool certificate in AutoCAD
Anyways, leave your opinions, hate, expertise or whatever you can! It all helps
I really am on the fence about swapping it in my FC.
Yes, yes I know, blasphemy. Hate me lol.
Anyways, if I do go ahead with the swap I would need a R154 or W58 with the R154 bellhousing... Thats gonna cost alot.. Well the whole swap is but ya know..
Now I've seen a couple threads (mainly aussie ones) asking if anyone sells a R154 to 13B adapter plate, and sure enough - Products - Green Brothers Racing Ltd
They sell one for the R154 and W58.
Now please correct me because I'm sure I'm wrong because I know very little about transmissions, but using the adapter plate means that you would be using the R154 input shaft, clutch, TOB, on a 13B flywheel ?
From what I've read there are 21 splines on a R154 and 22 on a 13B trans... How does that work. Plus the Input Shaft could be a totally different length...
But it's been done!?!
So to further my Title Question, if you can use an adapter plate and mount an R154 up to a 13B, can you not reverse it and use a 13B trans w/R154 bellhousing on a 2JZ?
Yes it would require a totally redesigned adapter plate, but I have a highschool certificate in AutoCAD
Anyways, leave your opinions, hate, expertise or whatever you can! It all helps
03-22-17, 01:51 PM
#2
Now please correct me because I'm sure I'm wrong because I know very little about transmissions, but using the adapter plate means that you would be using the R154 input shaft, clutch, TOB, on a 13B flywheel ?
Their parts description tells you exactly what you are asking.
Supra W Series Transmission to Rotary Adapter Kit
Two adapters available: One suits early bellhousings (Rx3/4/5). The other suits late model bellhousings (Series 4/5). Adapter is machined from aluminium and has helicoiled threads. Supplied with required parts & instructions. This kit uses the standard Mazda spigot bearing so bearing removal is not necessary. Mazda flywheel, pressure plate and release bearing are still used. This kit suits all Supra style Toyota aluminium case gearboxes. (W55 W56 W57 W58 W59). NOTE: adapter will not fit steel case Celica & Corona g/boxes.
$278.00+
Supra R154 Transmission to Rotary Adapter Kit
Two adapters available: One suits S4/5 bell housings (FC). The other suits S6-8 bell housings (FD). The FD pull type clutch arrangement can be retained.
Adapter is CNC machined from high grade aluminium. Supplied with all required parts & instructions. This kit uses the standard Mazda spigot bearing so bearing removal is not necessary. Mazda flywheel, pressure plate and release bearing are still used.
So to further my Title Question, if you can use an adapter plate and mount an R154 up to a 13B, can you not reverse it and use a 13B trans w/R154 bellhousing on a 2JZ?
Not necessarily.
For instance, if you are able to use the 13B bell housing and and adapter plate on the R154 transmission that would tell me the R154 input shaft started out longer than the Mazda 13B transmissions input shaft (you were able to add the adapter plate).
So, sure- could be adapted, but you might have to make a new longer input shaft...
Their parts description tells you exactly what you are asking.
Supra W Series Transmission to Rotary Adapter Kit
Two adapters available: One suits early bellhousings (Rx3/4/5). The other suits late model bellhousings (Series 4/5). Adapter is machined from aluminium and has helicoiled threads. Supplied with required parts & instructions. This kit uses the standard Mazda spigot bearing so bearing removal is not necessary. Mazda flywheel, pressure plate and release bearing are still used. This kit suits all Supra style Toyota aluminium case gearboxes. (W55 W56 W57 W58 W59). NOTE: adapter will not fit steel case Celica & Corona g/boxes.
$278.00+
Supra R154 Transmission to Rotary Adapter Kit
Two adapters available: One suits S4/5 bell housings (FC). The other suits S6-8 bell housings (FD). The FD pull type clutch arrangement can be retained.
Adapter is CNC machined from high grade aluminium. Supplied with all required parts & instructions. This kit uses the standard Mazda spigot bearing so bearing removal is not necessary. Mazda flywheel, pressure plate and release bearing are still used.
So to further my Title Question, if you can use an adapter plate and mount an R154 up to a 13B, can you not reverse it and use a 13B trans w/R154 bellhousing on a 2JZ?
Not necessarily.
For instance, if you are able to use the 13B bell housing and and adapter plate on the R154 transmission that would tell me the R154 input shaft started out longer than the Mazda 13B transmissions input shaft (you were able to add the adapter plate).
So, sure- could be adapted, but you might have to make a new longer input shaft...
Last edited by BLUE TII; 03-22-17 at 01:58 PM.
03-22-17, 02:02 PM
#3
So to further my Title Question, if you can use an adapter plate and mount an R154 up to a 13B, can you not reverse it and use a 13B trans w/R154 bellhousing on a 2JZ?
Most people swap to boat anchor iron block inline 6s because they want to make a lot of power more reliably than the rotary.
Why then would you try to use a Mazda transmission that doesn't really like more than 450ft/lbs torque?
Most people swap to boat anchor iron block inline 6s because they want to make a lot of power more reliably than the rotary.
Why then would you try to use a Mazda transmission that doesn't really like more than 450ft/lbs torque?
03-22-17, 02:16 PM
#4
Certified RoTard
Thread Starter
That makes sense. I really just wanted to know if could even be done at all. So I guess with some machining work and some thought out engineering I have my answer. Plus I need to do a whole lot more reading. (Doubt I'm gonna do it though)
One guy on RX8 club made a DIY adapter plate for his 6 speed trans to mount up to a 1JZ-GTE. Fit perfectly from how the thread turned out. I'll see if I can find the build thread.
And for a power factor... the stock 2JZ-GTE made 324 ft/lbs at 4,800 RPM. I'm gonna go single turbo and don't really want to push over 375/400 estimated HP. So I don't think I'd need to worry thaaat much about TQ, but you never know. I guess my best bet would be, go R154/W58...they're so damn expensive though. Same with the CD009.
Anyways. Thank for the fast response!
One guy on RX8 club made a DIY adapter plate for his 6 speed trans to mount up to a 1JZ-GTE. Fit perfectly from how the thread turned out. I'll see if I can find the build thread.
And for a power factor... the stock 2JZ-GTE made 324 ft/lbs at 4,800 RPM. I'm gonna go single turbo and don't really want to push over 375/400 estimated HP. So I don't think I'd need to worry thaaat much about TQ, but you never know. I guess my best bet would be, go R154/W58...they're so damn expensive though. Same with the CD009.
Anyways. Thank for the fast response!
Last edited by bwrx7; 03-22-17 at 02:21 PM.
03-22-17, 02:23 PM
#5
Certified RoTard
Thread Starter
Okay so after re-reading that third pic I found that the input shaft is too short like you predicted. Anyways here's the link to that thread if you wanted to read some haha
http://www.rx8club.com/non-rotary-sw...e-swap-253915/
http://www.rx8club.com/non-rotary-sw...e-swap-253915/
