Wish we could trade diffs. I want a R200v for my daily just because shorter gear ratio. I would say to actually go shorter than what you have. I dont work with SR's so I am not sure how much extra you need in order to stay in third but I would recommend maybe trying to swap with a NA Z32 Differential. However if second is just shy of where you need it and you find yourself having to upshift shortly before a corner and having to downshift again, I would say the 350 diff would be better suited to allow you to just stay in second.
Z33 - MT - R200V - 3.538
S14 - SR20DET - MT - R200V - 3.692
Z32 - R200V - 4.083
Still a VLSD but shorter gears. I mean, I would recommend trying out a welded diff to see if you like it but if you don't, go with this route.
Just my $0.02
Sorry for all the edits. Been awhile since I have talked ratios, had to figure out the math of it again but I got it now.
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S14 KA NA two cylinders, 75whp limper
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