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Anyone look into the Aisin AY-6 6spd tranny? Company that makes the R154

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Old 07-23-07, 04:39 PM
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Default Anyone look into the Aisin AY-6 6spd tranny? Company that makes the R154

Originally Posted by Wikipedia
Toyota Motor Corporation's R family is a family of 5-speed RWD/4WD transmissions built by Aisin. They share much in common (such as the bell housing-to-body bolt patterns) with the General Motors AR-5 (titled MA-5 internally by GM), Jeep AX-15, NV3550, and Isuzu AR5 transmissions."
I have also read that the Aisin transmissions share some similarities with the A3XX series of Toyota transmissions.

So assuming Aisan made their transmissions similar to Toyota's in both Manual & Automatic form...would it be reasonable to assume that perhaps the AR-5 or AY-6 could work with the 2JZGTE. Again this is assuming you have to make a custom driveshaft anyways...for someone without an MKIV Supra.

Again, just looking for some input...details follow:



Originally Posted by Wikipedia
The AY-6 is a 6-speed manual transmission manufactured by Aisin. It is designed for longitudinal engine applications and can handle up to 345 ft·lbf (468 N·m) of torque.

General Motors used the AY-6 as RPO MV1.

Gear ratios:
1 2 3 4 5 6 R
4.15 2.33 1.53 1.15 1.00 0.79 3.67

Applications:

* 2004 Holden VZ Commodore
* 2005 Cadillac CTS
* 2005 Toyota Tacoma
* 2006 Holden VE Commodore
Old 07-23-07, 11:21 PM
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Its about as weak as the W58...
Old 07-24-07, 06:47 AM
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is there a price??
Old 07-24-07, 04:48 PM
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sc250tt
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better off going with the pontic solstic transmission its a newer model r154.
Old 07-24-07, 10:44 PM
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Why would you waste the time and money to put in(or try to) a gearbox as weak if not weaker the the stock one?
Old 07-24-07, 11:14 PM
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88supramki
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just because it has 1 more gear does not make it better
Old 07-25-07, 03:55 PM
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Originally Posted by 88supramki
just because it has 1 more gear does not make it better
How does it's final drive compare to that of an R154??

Wouldn't double overdrives yield better mpg??

Makes me think it's better despite it being weaker---

Ratings can be over or undershot by a big margin sometimes as well.

Testing would be the final say on what it can hold up to..

I'm sure there's no data released for the R154 that says "good for 750 hp" either, but they can do it..

For instance, an NV3500 by New Ventures used in many chevy and dodge full size trucks are rated at 350 tq -- they are also know to stand up to numerous 11 second passes in a 4000 lb Dodga Dakota -- A boosted 4.7 making 500+ wtq -- in that case the trans is a copy of the Tremec 3500/3550 as is the W58... I guess it's just a better copy or something---

This sounds really interesting to me and I'd hate to just bash it b/c somebody "said" it's just as weak as a W58..

BUT......

After looking at the ratios, it doesn't look to be double overdrives, only single, and the first gear is super super low-- it would just turn into smoke with any kind of power in my opinion--
Old 07-25-07, 08:55 PM
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Originally Posted by MJHSC400
How does it's final drive compare to that of an R154??

Wouldn't double overdrives yield better mpg??

Makes me think it's better despite it being weaker---

Ratings can be over or undershot by a big margin sometimes as well.

Testing would be the final say on what it can hold up to..

I'm sure there's no data released for the R154 that says "good for 750 hp" either, but they can do it..

For instance, an NV3500 by New Ventures used in many chevy and dodge full size trucks are rated at 350 tq -- they are also know to stand up to numerous 11 second passes in a 4000 lb Dodga Dakota -- A boosted 4.7 making 500+ wtq -- in that case the trans is a copy of the Tremec 3500/3550 as is the W58... I guess it's just a better copy or something---

This sounds really interesting to me and I'd hate to just bash it b/c somebody "said" it's just as weak as a W58..

BUT......

After looking at the ratios, it doesn't look to be double overdrives, only single, and the first gear is super super low-- it would just turn into smoke with any kind of power in my opinion--
If you're wanting to swap transmissions just to get better mileage, then you've got other problems. It wont affect it very much really. IMO get a 5 + 1 overdrive tranny instead of a 4 + 2 like the T56. Its better for performance... I figure I'll go pick up a used Corolla or Civic if I want better mileage.
Old 08-01-07, 02:31 PM
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phrozen
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does it work on a sc? and is it as strong/
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