sr main crank pulley question

[sblack13]

i have a question. Are the s13/s14/s15 sr20 motor's, the crank pulleys are the same right? Looking are some pulleys on ebay, i would assume they are the same though. Just double checking thanks.

I also would appreciate it, if anyone has any input on anymarket crank pulleys for a s14 sr20. Whats the difference over stock?

[JDMClifford]

I need the same question answered. Except im not gonna go on eBay.

[S14DB]

Don't get one.

[JDMClifford]

i have no choice mine broke. due to my stupid gear puller being stutpid.:-/

[MavericStephenc]

i think jgycustoms.com has them

[MavericStephenc]

http://jgycustoms.com/240sx/underhood.htm

btw here it is

[S14DB]

Only difference is if you have a HICAS PS pump or not. 4 Ribs on the Hicas, 3 on non Hicas. Just have to get the same PS pulley as the crank ribs.

I have never seen gains from CRANK pulleys personally. The arguments about harmonics and damping with no gains is good enough for me to stay away from them.

I would like one of these once I have some cash. http://www.atiperformanceproducts.com/products/dampers/charts/damnissan.htm

[vrooompssssht]

. The arguments about harmonics and damping ]


:keke: so thats how they balance the motors huh? :keke:

[S14DB]

Did I mention Balance?

[withy]

how much do those dampers cost? i couldn't find aby prices

[S14DB]

Summit was like $300-350 IIRC.

[bardabe]

I have a stock crank pulley in perfect condition if u want it.

[MavericStephenc]

the way i see it is a lighter crank pully water and ps pully will in some ways (not much) allow for a quicker spool in terms of rpm ,much like a light weight flywheel. you can also get more efficent cooling by using a larger of smaller or larger water pump pully (one pushes more water faster and the other allows for a slower flow but better cooling when it gets to the radiator) but thats getting off topic. also in terms of belts, (you might know this) dont buy a belt and cut ribbs to make it fit www.mynismo.com carries the sr20 belt set for around 50 bucks.

that was alot longer than i intended

[McRussellPants]

The only pully kit I've seen designed to work with the ATI damper are the Naprec ones.


One guy that posts here has Naprec pullies, i don't know if they're the ATI damper type

[JDMClifford]

thx for all the info. im looking at a bunch of brands. all seem sketch except a few. and bardabe you have a PM.

[SochBAT]

I had an ASP IIRC crank pulley. Seemed to free up tension and become more responsive, but i wouldn't say any gains.

[S14DB]

The only pully kit I've seen designed to work with the ATI damper are the Naprec ones.


One guy that posts here has Naprec pullies, i don't know if they're the ATI damper type
That's the other problem I had. I can find the Damper but not the Pulley that bolts to it. The Naprec set deletes AC and under drives everything. Total race setup.