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· ma70-7m=1JZ
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2,602 Posts
I have the 3.90 in my car , I love it, it has good bottom end and a decent top speed. I have gone up to 175mph at about 6300 rpm in 5th with 18" wheels. I normally get about 2.19- 2.25 60 ft times with street tires.
I am swapping in a 1J right now and I have the 4.10 Torsen diff going in. I will use which ever one I like best. People say the Torsen cant hold up to Drag racing with slicks or DR's but I will find out soon.
 
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