Thread: something is going on in y'alls head

for those that don't knowI end up tearing down the B16 qr as far as possible and such, and have been finding some nice and strange stuff.
Didn't notice on tear down but u have 2 diff hieght valve springs in there, and most likely they have diff spring rates as well, well thats what I think. I will post pics of this later next to B15 qr valve springs and let u know which side has the short springs.

ur tall one is ur intake

on the ends are stock b15 springs

regaurdless of height, look at the coil, they are diff
and here is a bad pic of stock b15 to BC(I'm pretty sure that the BC is on the right)

hmm. thats a bit strange....or is it XD Id love to know Nissans reasoning for this

grab a caliper and see how much thicker the b16 springs are, and whether they're different thickness intake to exhaust.

Originally Posted by gurov

grab a caliper and see how much thicker the b16 springs are, and whether they're different thickness intake to exhaust.

only if u ask nicely

EXT
30 lbs @ seat
100 lbs @.400 lift
.480 coil bind

INT
30 lbs @ seat
90 lbs @ .400 lift
.460 coil bind

here is a line up of BC, B15 and B16 valve springs. Inside is b16, going out is BC and on the end is b15.

think I may have left the seats on the b16 springs, o'well.