Upgrading a NG900 Auto Transmission - The Saab Link Forums

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Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's for the NG900 and 9-3. This may also include suspension.

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Old 03-27-2013, 04:35 PM   #1
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Join Date: Mar 2010
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Upgrading a NG900 Auto Transmission

hey.

im building an offroad buggy using a B204 and currently the F25 transaxle, but i really really need to swap this out for an auto, BUT the auto needs to be able to handle 400lb/ft of torque from the engine. it also need to be completely manually shifted, and stay in which ever gear is selected, and have a fully locked/lockable torque converter.

does anyone know who to talk to, or where to go to build this thing up to handle what i want?

btw, its a aisin AW50-40LE transmission.
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Old 04-03-2013, 04:35 PM   #2
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I've seen some documentation on the AW 50-40LE that specs out which solenoids do what.

It'd be very simple to simply wire up a set of switches to control the gear selection and torque converter status.

Best I know of, you're asking the max out of the torque capability of the box, but the secret to getting it to survive is an exceptionally smooth torque curve from the engine.

Sounds like an interesting project, good luck with it!
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Old 04-03-2013, 08:41 PM   #3
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It would be easier to mod the driver than the box. Why auto? Someone crippled? Or just a white-hair, in boat-shoes, with a gut?
-Cm
PS This was said in jest...no need to take it personally...
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