aluminum crank pully cause oil pump failure?

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blasterman87

New Member
my b16a1 came with a aluminum underdrive pully, and ive been told that sence it doesnt have rubber in it like the factory one it wont obsorb shock, this transfering the shock to the oil pump eventually shattering it. is there truth in this?? i looked up the pully and its listed for the b16a2 and not the b16a1, and the newer a2 has a counterbalanced crank unlike the older a1.
 
Crankshaft balance does not have much to do with harmonic vibrations caused by the individual strokes themselves(the vibration comes from crank flexing).

With a B16, since it has a really short stroke, I don't think it'll really be a problem. But, there's always that risk so if you just want to be sure, run a dampened pulley.
 
The general concensus is "dont use it". Some people have reported failures, others say its just fine.. But why run the risk? The engine was engineered with a damper, you should use the damper. They didn't put it on there for kicks.
 
people do a lot of things for dyno-queen engines, and removing the damper is one of them.

Be smart. Build it to make gobs of torque for its entire natural life.
 
ok, with that said, whare can i get a pully with dampers in it? does someone make an aluminum one that has dampers? ive put alot of time/money into this swap and i want it to last atleast 100k
 
the ctr pulley is not a dampner either its a zero ballanced piece that has no dampening ability
 
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