[Amc-list] AW-4 =Performance Transmission Build= / shifter -

[Brien Tourville <hh7x@xxxxxxxxxxx>]

    ~2005 *Tundra* Discussion Thread~ - Page 9 - *Tundra* Solutions
    Forums
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Has anyone looked at the 05 *specs*? 325 LBS of torque at 3400 RPM. 
*...* *A340*:2.804 1.531 1.00 0.705 A750: 3.520 2.042 1.400 1.000 0.716 
V-8 rearends 3.91 *...




http://tinyurl.com/24dj5f



snippets:



*The '03 or '04 Isuzu's now use the AW tranny again behind the 3.5. In 
doing so, they produced a new bellhousing to mate the two. This bell 
bolts to the 60 deg Chevy pattern in the 3.5 block. So, after my engine 
swap, I'll be able to get a bell housing from Isuzu that'll bolt this 
new drivetrain to my 4.9 Caddy motor. Will need to figure out a torque 
converter / flexplate for it, but that's a pretty minor issue I think.

This also means that it'll bolt to several engines (Isuzu 3.2/3.5, GM 
2.8/3.1/3.4, Isuzu 2.3/2.6, Caddy V8's including the Northstar, the 3.5 
Olds shortstar, GM supercharged 3800, multiple Toyota engines including 
the turbocharged Supra, the Tundra V8, and on and on), all with factory 
bell housings. These tranny's have a very good reputation for being 
strong and reliable. But, with big V8 power, a stock tranny may not last 
long and will need a HD re-build on it. Built this way, it does last 
behind 600 hp Supra's, and heavy, TRD supercharged 
4-Runner/Tacoma/Tundra/Sequoia trucks as well.

Finally, for my shifter... One cool thing about these tranny's is the 
solenoids for controlling the shifing are simple on-off devices. Not 
frequencey / PWM type things the GM series tranny's have used. That 
means that shifting can be controlled pretty simply with some switches 
and 12v relays. Even better, the 2 solenoids that shift from 1st - 4th 
gear are Gray code, meaning only 1 solenoid changes state from 1 shift 
to the next. There is a 3rd, TC lockup solenoid too. Line pressure for 
the shift is dependant on throttle position and is done mechanically 
with a cable to the throttle body.

Now the shifter..., ooh, I really love this... here...


is a Volvo Geartronic shifter from an S60. A perfect match for a 
manually shifted auto tranny. Once in 'D', the lever slides to the left 
and you can bump it fore and aft to upshift and downshift sequentially. 
This lends itself very well to a DIY cobbling of microswitches and 
relays to shift the tranny. I'm gonna hook the 'W' (winter mode) button 
up to be the TC lockup as well. I'll also remove the Reverse lockout 
stop so that if I ever do need it, I'll be able to slam the shifter over 
and up against the stop for an instant 1st -> Reverse shift.





===.===





;) yeah baby......... gotta' 'nose' for the goods..........




*

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