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blasterman87 · 07-03-2009, 12:28 AM

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.

K2e2vin · 07-03-2009, 12:53 AM

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.

phyregod · 07-03-2009, 09:07 AM

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.

awptickes · 07-03-2009, 10:58 PM

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.

blasterman87 · 07-04-2009, 02:54 PM

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

awptickes · 07-04-2009, 07:08 PM

Why not buy the CTR crank pulley?

97hatch · 07-09-2009, 05:59 PM

the ctr pulley is not a dampner either its a zero ballanced piece that has no dampening ability

07-03-2009, 12:28 AM	#1
blasterman87 Senior Member Join Date: May 2009 Age: 22 Posts: 340 iTrader: 0 / 0% Rep Power: 4	aluminum crank pully cause oil pump failure? 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.

07-03-2009, 12:53 AM	#2
K2e2vin Senior Member Join Date: Jan 2003 Location: Raleigh, NC Age: 22 Posts: 6,313 iTrader: 2 / 100% Ride: 88 Honda Civic HB Rep Power: 150	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. __________________ 1988 Honda Civic Standard-more mods than I want to list 1992 Honda Accord LX 1996 Toyota Avalon-Spun bearing, for sale. Terrorists have successfully attacked our imagination. RIP Jon Eban Nie, August 31, 1991 - May 7, 2006 Y-Daniel Siu Eban, September 7, 1986 - May 7, 2006

07-03-2009, 10:58 PM	#4
awptickes Reverend Awptickes Join Date: Aug 2007 Location: Bel Air, MD Age: 21 Posts: 3,887 iTrader: 6 / 100% Ride: 1999 Civic EJ9, 2009 Fit GE8, 2006 Suzuki SV650s Rep Power: 184	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. __________________ ☻/ DIY/Howto HID Projector retrofit /▌ / \

07-04-2009, 07:08 PM	#6
awptickes Reverend Awptickes Join Date: Aug 2007 Location: Bel Air, MD Age: 21 Posts: 3,887 iTrader: 6 / 100% Ride: 1999 Civic EJ9, 2009 Fit GE8, 2006 Suzuki SV650s Rep Power: 184	Why not buy the CTR crank pulley? __________________ ☻/ DIY/Howto HID Projector retrofit /▌ / \

07-09-2009, 05:59 PM	#7
97hatch ? Join Date: Feb 2003 Location: Anderson IN Age: 26 Posts: 1,578 iTrader: 0 / 0% Ride: i have 14 cars i drive my sohc turbo ef Rep Power: 34	the ctr pulley is not a dampner either its a zero ballanced piece that has no dampening ability __________________ SOME PEOPLE ARE LIKE SLINKIES. NOT REALLY GOOD FOR ANYTHING BUT THEY BRING A SMILE TO YOUR FACE WHEN PUSHED DOWN THE STAIRS.


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07-04-2009, 02:54 PM	#5
blasterman87 Senior Member Join Date: May 2009 Age: 22 Posts: 340 iTrader: 0 / 0% Rep Power: 4	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

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aluminum crank pully cause oil pump failure?