VHR + FD Gear Ratio upgrades - 3.9 and 4.08

mpp9 · 11-07-2009, 03:28 AM

I read on a 350z forum that an upgraded lsd is required to be able to handle the power from 4.08 gearing and bolt ons. 1st and 2nd gear just spin even with the viscous let alone the open diff that I have in mine right now. If that's even remotely true it'll affect us more having more power stock and making more power from bolton's than 350 hrs. Z eliminator said he had trouble getting traction from the 1 to 2 shift dragging but his is an automatic which is going to be harder to deal with than a manual I'd guess. Anyone think it's a waste to buy the gearing without going with a better lsd? Quaife, Kaaz, nismo, etc.

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11-07-2009, 03:28 AM	#11 (permalink)
mpp9 Base Member Join Date: Apr 2009 Location: Pittsburgh Posts: 103 Drives: 2012 sti Rep Power: 18	I read on a 350z forum that an upgraded lsd is required to be able to handle the power from 4.08 gearing and bolt ons. 1st and 2nd gear just spin even with the viscous let alone the open diff that I have in mine right now. If that's even remotely true it'll affect us more having more power stock and making more power from bolton's than 350 hrs. Z eliminator said he had trouble getting traction from the 1 to 2 shift dragging but his is an automatic which is going to be harder to deal with than a manual I'd guess. Anyone think it's a waste to buy the gearing without going with a better lsd? Quaife, Kaaz, nismo, etc.