Properly swap a V160 6 speed transmission into A70 Supra.
- Thread starter SupraClaou
- Start date
Could you share the bearing part numbers? Also do you have more details on the adapter for the speedo? I want to install a 3.5 rear gear on my R154 to aid my highway speeds. I'm running stock twins and the super low TQ and boost from sequential is making a very jerky highway drive because of being at such a high RPM.
I need something to allow me to correct the difference between the 3.5 and 3.9 gear I'm going to be switching out.
I need something to allow me to correct the difference between the 3.5 and 3.9 gear I'm going to be switching out.
Zazzn;2089803 said:
Which adapter? The reverse movement adapter is custom,which is used to alter the direction of the V160 wheel since in the R154 is the opposite. It is also built to reduce the speedo output since the V160 uses different will pattern by + 17%, so the adapter has around - 17 % speedo output to balance the difference.
For a stock 2jzgte with twins the 3.9 mk3 diff is ok. Not to mention the 4.1 rear gear should be the perfect one. Don't forget the JZA70 mk3 Supra had 4.1 from the factory!
The R154 has quite long gears especially 1st and 3rd and of course 5th is the overdrive for highway cruise.
It was one of the reasons I went with the V160 wich is a much close ratio transmission than the R154. Only the late R154s that the late Soarers had..had better gearing but good luck finding one...
Car is not running now. Sold the AEM v1 ecu. Waiting for the AEM series 2 ecu and some AEM pressure valves for safety feat./logging.
Also I just got the 3.5 gear / built Weir stage 1 LSD differential, and I would like to install it and it will need to be broken in...
So, it will take some time till the car will be ready for the final tune. I will make a video asap with the car just cruising around with everything working like speedo, abs, etc.
Also I just got the 3.5 gear / built Weir stage 1 LSD differential, and I would like to install it and it will need to be broken in...
So, it will take some time till the car will be ready for the final tune. I will make a video asap with the car just cruising around with everything working like speedo, abs, etc.
Some update... Finally !
Project has come to an end. Only the 3.5 gear differential is left to be installed, but will take a while to get it on the car since I want to practice on the current stock 3.7 that I have and feel the gearing and performance with this setup. The 3.5 gear waits in the storage. Also the AEM series 2 ecu is installed and tuned for every day driving and cruising with wastegate spring boost setup (440 whp / 13 psi of boost) , though it needs a dyno tune for full boost and final setup hopefully around a 4 digit HP number .
So, the ABS issue is resolved installing an ABS ring at the outer rear diff pinion flange. The ABS stock sensor wiring was extended and it was placed facing the teeth of the ring at a gap of 2 mm . The sensor's magnet pin is flat and parallel. It should be installed facing the ring's parallel teeth, with a 2mm gap between them .Here is the final setup.
Also , got the oem exclusive Toyota V160/161 transmission oil
Project has come to an end. Only the 3.5 gear differential is left to be installed, but will take a while to get it on the car since I want to practice on the current stock 3.7 that I have and feel the gearing and performance with this setup. The 3.5 gear waits in the storage. Also the AEM series 2 ecu is installed and tuned for every day driving and cruising with wastegate spring boost setup (440 whp / 13 psi of boost) , though it needs a dyno tune for full boost and final setup hopefully around a 4 digit HP number .
So, the ABS issue is resolved installing an ABS ring at the outer rear diff pinion flange. The ABS stock sensor wiring was extended and it was placed facing the teeth of the ring at a gap of 2 mm . The sensor's magnet pin is flat and parallel. It should be installed facing the ring's parallel teeth, with a 2mm gap between them .Here is the final setup.
Also , got the oem exclusive Toyota V160/161 transmission oil
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This is a super cool thread. One of my favorites in recent years from the mk3 community. Cool parts, quality fabrication and a great looking end result. Nice work!
Piratetip;2091387 said:
Yeap....hahaha. Well nothing to worry about. 5-6 years ago when I was swapping diffs one bolt from the right diff mount wouldn't unbolt and spinning like crazy.
The hexagon nut inside the subframe that is factory welded to the frame come loose...and I create a service hole in the subframe to access a hexagon wrench/key inside
so I can unloose or tighten the differential bolt. The hole does not effect or interfere with the rigidity or structure of the subframe.
I have a 2nd spare subframe though...
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suprarx7nut;2091391 said:
Thank you for your kind words! Glad I can inspire more people and contribute to the mk3 community..
Yeah looked like you made it to access that nut, just wanted to make sure you knew about it 
If it were me I would cover it again and gusset the entire subframe as well as add some bracing across the top.
But that's just what I have planned
YMMV !
If it were me I would cover it again and gusset the entire subframe as well as add some bracing across the top.
But that's just what I have planned
YMMV !
Piratetip;2091413 said:Yeah looked like you made it to access that nut, just wanted to make sure you knew about it
If it were me I would cover it again and gusset the entire subframe as well as add some bracing across the top.
But that's just what I have planned
YMMV !
Yeah... it's something that I have in mind. Thankfully my Supra is a 1990 model and has the top oem bracing bars.
But yes, a gusset subframe is a good idea...and in general a nice reinforcement !
Well,some update...
I drive the car and everything works great. Still with the 3.7 rear diff gear, haven't got the time to swap the upgraded 3.5 diff...but soon it will happen.
I drive the car and everything works great. Still with the 3.7 rear diff gear, haven't got the time to swap the upgraded 3.5 diff...but soon it will happen.
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Piratetip;2094502 said:
Hey... Here is very deep into summer days with very hot temps! I was away from town.
I don't know if I am going to update before summer ends. Now to be honest I am trying to fix something to my A/C system.
I might hit you a PM to ask about something bro.
YEAH....this was a major HIT from Photobucket! Damn...real suckers I would say! I ain't paying them.
Thankfully I just finished updating this thread,using my local hard disc as a source for my pictures!
Update! Car is running real nice with no issues after the V160 swap. All look good and smooth.
Haven't had time to install the 3.5 diff, but I will soon.
Will have to make a video soon for the community...
Haven't had time to install the 3.5 diff, but I will soon.
Will have to make a video soon for the community...
Glad to see you are still kicking around
Yeah! I am riding with the 3.5 differential now. Installed it 3 days ago.. I am breaking in the diff as per your indication
Looks good!