99 gs300 (tranny issue on boosted GS3)
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does anyone know if a toyota soarer transmission fits onto a 99 gs300? i have one and wanting to put into mine but i do not know if it fits. the tranny now shifts hard with 8 lbs. of boost. right now im scared to go more... dont want to be laying on the side of the road for tranny failure.
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You might want to start out with valve body upgrade. What kind of HP are you pushing at the rear wheels?
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Originally posted by minnyminh
i got in dialed in at 278hp at the wheels. how much is the valve upgrade?
i got in dialed in at 278hp at the wheels. how much is the valve upgrade?
I got my valve body upgrade used from another member. Shifting is much faster and more precise, but it is definitely rougher (no more lexus smooth shifts you don't feel). SRT sells one (link below), and I think RMM and a couple other places do as well.
http://www.swiftracing.com/engine/tranny.htm
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Originally posted by minnyminh
isnt the gs4 tranny better built and stronger than the gs3? the gs4 has lsd also.
isnt the gs4 tranny better built and stronger than the gs3? the gs4 has lsd also.
Try doing a search on CL and see what others with forced-induction GS3s did to their trannies to beef it up. Good luck.
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adamgamz
2Gen GS430 / 400/ 300 Classifieds (98-05)
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01-02-08 05:20 PM