5spd auto trans vs 4spd on a sc300

[topgear]

have this sc300 99` with a 2jz ge on a 5sp auto trans
going for a 500whp daily driver
but dont want to swap for a manual trans
cant figure it out what will last longer
2jz-ge with 5sp or 1jz with 4sp auto
which transmition is stronger ?

:1zhelp:

[SC300fivespd]

dude?????? auto your okay.. w58.. you are pushing your luck LOL dont launch with w58:biglaugh:

[IJ.]

5 speed auto?

[RazoE]

Later models were 5 speed, with gated shifters...

MKIV autos last quite a while, are they the same as SC300 autos?

[IJ.]

Learnt something new then :)
(wonder what old thing I'll now forget to make room)

[Nomad707]

Learnt something new then :)
(wonder what old thing I'll now forget to make room)

LOL!!!!!!!!!!!
ian your funny..

A34** series are pretty nice in my opinion
I have no knowledge of the 5spd auto though.. sorry i can't help :icon_mrgr

[topgear]

so the question is 5spd auto trans `99 vs. 4spd auto trans `91
i`m guessing than newer (5sp auto `99) is better, more gears, better acceleration, has less miles...

searched the forums & fount that 400whp is maximum handling limit for the older auto trans.

[IJ.]

I would imagine the a350e (5 speed) would have a closer spread of ratios but I haven't been able to track down a listing yet.

With my a340e I'm using a PCS controller and a 2800 Histall this allows me to program it to shift as a 6 speed ie: 1>2>3>3L>4>4L

[Doward]

Some info:
http://www.reanimotion.com/toymods/a350e%20automatic.htm

http://en.wikipedia.org/wiki/Toyota_A_transmission#A650E (650 replaced the 350 in '98)

Might give you an idea of the ratios used.

[IJ.]

Thanks John, saw those but as they didn't mention 350e ratio's specifically I ignored em ;)

I know the 350 can use the 7m 340 bellhousing and there are a bunch of better parts available for it.

Haven't really decided if it'll be an advantage though as mine has a nice smooth ratio spread shifting it as a 6 speed.

[topgear]

but wich one is stronger ?

what to do ?
make a 2jz NA-T 5spd auto or install 1jz with 4spd auto ?

:1zhelp: