sr main crank pulley question - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

sblack13 · 05-22-2006, 07:09 PM

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 · 01-06-2007, 07:07 PM

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

***S14DB*** · 01-06-2007, 07:09 PM

Don't get one.

JDMClifford · 01-06-2007, 07:12 PM

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

MavericStephenc · 01-06-2007, 07:33 PM

i think jgycustoms.com has them

MavericStephenc · 01-06-2007, 07:38 PM

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

btw here it is

***S14DB*** · 01-06-2007, 07:46 PM

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.co.../damnissan.htm

vrooompssssht · 01-06-2007, 07:48 PM

Quote:

Originally Posted by S14DB

. The arguments about harmonics and damping ]

so thats how they balance the motors huh?

***S14DB*** · 01-06-2007, 08:05 PM

Did I mention Balance?

withy · 01-06-2007, 08:31 PM

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

***S14DB*** · 01-06-2007, 08:33 PM

Summit was like $300-350 IIRC.

bardabe · 01-06-2007, 08:40 PM

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

MavericStephenc · 01-07-2007, 12:45 AM

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 · 01-07-2007, 01:52 AM

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 · 01-07-2007, 03:46 AM

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 · 01-07-2007, 05:01 AM

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

***S14DB*** · 01-07-2007, 05:13 AM

Quote:

Originally Posted by 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

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.

05-22-2006, 07:09 PM	#1
sblack13 Zilvia FREAK! Join Date: May 2005 Location: Seattle Age: 38 Posts: 1,016 Trader Rating: (10) Feedback Score: 10 reviews	sr main crank pulley question 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?

01-06-2007, 07:07 PM	#2
JDMClifford Zilvia Junkie Join Date: Nov 2006 Location: Santa Cruz Posts: 376 Trader Rating: (0) Feedback Score: 0 reviews	I need the same question answered. Except im not gonna go on eBay. __________________ Parking lot pimping

01-06-2007, 07:09 PM	#3
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	Don't get one. __________________ Comments should be taken as Opinions not as Statements of Fact

01-06-2007, 07:12 PM	#4
JDMClifford Zilvia Junkie Join Date: Nov 2006 Location: Santa Cruz Posts: 376 Trader Rating: (0) Feedback Score: 0 reviews	i have no choice mine broke. due to my stupid gear puller being stutpid. __________________ Parking lot pimping

01-06-2007, 07:46 PM	#7
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	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.co.../damnissan.htm __________________ Comments should be taken as Opinions not as Statements of Fact

01-06-2007, 07:33 PM	#5
MavericStephenc Zilvia Addict Join Date: Aug 2006 Location: salem mass. Age: 37 Posts: 830 Trader Rating: (0) Feedback Score: 0 reviews	i think jgycustoms.com has them

01-06-2007, 07:38 PM	#6
MavericStephenc Zilvia Addict Join Date: Aug 2006 Location: salem mass. Age: 37 Posts: 830 Trader Rating: (0) Feedback Score: 0 reviews	http://jgycustoms.com/240sx/underhood.htm btw here it is

01-06-2007, 08:05 PM	#9
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	Did I mention Balance? __________________ Comments should be taken as Opinions not as Statements of Fact

01-06-2007, 08:31 PM	#10
withy Leaky Injector Join Date: May 2005 Location: wichita, ks Age: 39 Posts: 120 Trader Rating: (0) Feedback Score: 0 reviews	how much do those dampers cost? i couldn't find aby prices

01-06-2007, 08:33 PM	#11
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	Summit was like $300-350 IIRC. __________________ Comments should be taken as Opinions not as Statements of Fact

01-06-2007, 08:40 PM	#12
bardabe Post Whore! Join Date: Aug 2005 Location: SoCal Age: 35 Posts: 4,719 Trader Rating: (10) Rides Gallery: bardabe Feedback Score: 10 reviews	I have a stock crank pulley in perfect condition if u want it. __________________ Review Thread

01-07-2007, 12:45 AM	#13
MavericStephenc Zilvia Addict Join Date: Aug 2006 Location: salem mass. Age: 37 Posts: 830 Trader Rating: (0) Feedback Score: 0 reviews	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

01-07-2007, 01:52 AM	#14
McRussellPants Nissanaholic! Join Date: Oct 2005 Location: Austin, Tx Posts: 2,168 Trader Rating: (0) Feedback Score: 0 reviews	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

01-07-2007, 03:46 AM	#15
JDMClifford Zilvia Junkie Join Date: Nov 2006 Location: Santa Cruz Posts: 376 Trader Rating: (0) Feedback Score: 0 reviews	thx for all the info. im looking at a bunch of brands. all seem sketch except a few. and bardabe you have a PM. __________________ Parking lot pimping

01-07-2007, 05:01 AM	#16
SochBAT Post Whore! Join Date: Dec 2004 Location: Abilene, TX Age: 39 Posts: 6,428 Trader Rating: (9) Rides Gallery: SochBAT Feedback Score: 9 reviews	I had an ASP IIRC crank pulley. Seemed to free up tension and become more responsive, but i wouldn't say any gains.