What this man said especially if its a 96spec s80 or S4C with a 4.785/4.928 Final DriveYes it's a straight bolt on, as are all B series gearboxes! I wouldn't recommend using the S9B as the gear ratio is very long, with the B16 not having much torque out the box you want a S80 with a 4.7FD to optimise what you have.
Torsen/Helical are the same thing aren't they? Torsen is a brand, helical is the type of diff. I'm not 100% certain but the S9B might be viscous?S9B is a torsion LSD and the S80/S4C use a helical LSD.
Yeah totally true i dont disagree , like the helical (TORSEN type) is designed and patented by Quaife I believe. Just the name sticks sometimes like ''bendix gear'' on a starter should be a pinion drive gear and a ''hoover'' should be a vacuum cleaner lol
But isn't this back to whole Torsen=helical thing? I.e. 'Torsens' (the brand) are helicals, but not all helicals are Torsens?From what ive read they have the torsen non-helical type?
My Quaife feels more aggressive at 7k than it does at 3k, I was always assuming this was because more torque at the wheels (say 120lbft at 7k vs 100lbft at 3k) got a bigger reaction out of the diff, so the gear ratios should have the same effect...Yeah same as the ek9/dc2 helical lsd. The gear ratios should not effect the operation of it , because the torque bias ratio is the same , you should still see the same effects .