Hey guys I have done some searching but dont have a definate conclusion.
1. Did the R154 trannys ever come in the US supra's?
2. What 1JZGTE Swaps from japan include the R154??
3. Can I buy any 1JZGTE Swap from japan with a 5 speed manual tranny and know it will be a R154 or did they make others for the turbo charged cars there?

 

Yes. The MKIII (88-92) Supra turbo had the R154 attached to its 7M-GTE engine. The chassis code for these models is MA70. But, these trannies were made to mate to the M series of engine, not the JZ series.

Every 1JZ-GTE engine that Toyota ever produced with a manual utilizes the R154 tranny. These include the Chaser, Soarer, and Supra.

See above statement. But, keep in mind that not all R154 transmissions were created equally:

For the shifter location to be correct in an SC300 requires an R154 transmission from a Chaser (JZX90/JZX100) or Soarer (JZZ30). These transmissions are almost impossible to find in the states. The Supra (JZA70) tranny will work with modification and is much more readily available.

 

exactly what he said.

all turbo 1j motors used the R154 because it could handle higher amounts of power than it's partner in crime the W58. R154's aren't too hard to find, but finding them from chasers and soarers can be a little challenging. The supra one will work, but without proper modification shifting will be a little strange.

 

So, what modifications are necessary to make the Supra 154 work in the SC?? Pics anyone??

 

Damn, Blizzy is so knowledgeable. He answered a bunch of my questions too.

 

There are a couple pictorial accounts of this by other members:
Solution to soarer r154
R154 shifter extension mod writeup w/ PICS !

The JZZ30 w/R154 engine set would be ideal since it came from the same vehicle, but the JZA70 w/154 (ie. JDM Supra) would be the next best thing since they are easy to find and the transmission can be modified to work.

 

Thanks for the help guys.

 

I guess I need to start searching now for a JDM swap from a soarer.

 

got my 1j motorset with the r154 from jhot

 

You lucky mot.........

 

ok so im trying to get this straight. the R154 out of a Chaser (JZX90 or JZX100) will fit into an Sc300 with a 1JZ with no modifications. correct? i read somewhere else that the shifter would still have to be modified.

 

JZX90/JZX100/JZZ30 tranny is the same part number from Toyota. The JZZ30 tranny is the Soarer's. The Chaser tranny will absolutely work 100%.

The JZA70 and MA70 R154 from the Supra are the R154's that require linkage assemblies to be modified.

A7 trannies are common. Z3 and X9/X10 trannies are tough to find. If you have found one, tell me before you buy it so that I can!

 

ok thanks. now i know for sure what to look for. i just wanted to make sure before i went and bought the wrong tranny.

ive read a lot of threads about this, but i just saw another that said it would need to be modified, but whoever said it must have been confused or something.

thanks for the info.

 

BTW, this would also work with Auto to R154 manual swapping MKIV supra's.

 

Sorry but im planning on a 2jzgte aristol swap in my sc300 and just wanted to know if the 1jz tranny will bolt on the 2jz? Thanks!