nst pulley kit

Juso · 09-21-2017, 10:37 PM

hey z family, i was looking for some guidance of what i need besides the kit itself and the belt. i saw that it is recommended to get a new crankshaft bolt, but was wondering if i need a new one as well? if so, anyone know the part number or have a link to where i can purchase?
Thanks!

synolimit · 09-22-2017, 02:17 AM

Just dont. Not worth it. Get a proper pulley like ATI when you actually need it.

axmea? · 09-22-2017, 02:25 AM

I've had my crank and alternator pulley for years and have no issues. I recently replaced my belts and the pulleys are in great shape. Yes there were reports of failures from members. Updated versions from NST (thicker arms) were produced. As synolimit stated, you do have a lot of options available though.

Juso · 10-23-2017, 11:55 PM

Quote:

Originally Posted by axmea?

I've had my crank and alternator pulley for years and have no issues. I recently replaced my belts and the pulleys are in great shape. Yes there were reports of failures from members. Updated versions from NST (thicker arms) were produced. As synolimit stated, you do have a lot of options available though.

so should i go through with installing them? because i feel as though im not going to be able to sell now with the bad rep theyre getting.

plus mine appear to be the thicker ones after looking on their site.

2011 Nismo#91 · 10-24-2017, 09:22 AM

I really can't see how pulleys could be worth the hassle. The AC disengages itself when you are full throttle, the alternator is only putting out the power you need from it which isn't much, and the PS pump can't be more then a few HP total. Running a 15% under-drive would save barely 1HP which then needs to go through the drive line losses. It would be more effective both cost and performance wise to throw out the spare tire and get a AAA gold membership. In the past, like 40 years ago when you had a lot more running on the belt that were inefficient and with a lower power engine (210HP V8) to start it was beneficial for using an under-drive for a small but noticeable performance boost.

Now if you have done every possible thing else to improve performance, then maybe consider installing it.

09-21-2017, 10:37 PM	#1 (permalink)
Juso Base Member Join Date: Apr 2017 Location: Texas Posts: 120 Drives: 12 Nissan 370z GM 7A Rep Power: 8	nst pulley kit hey z family, i was looking for some guidance of what i need besides the kit itself and the belt. i saw that it is recommended to get a new crankshaft bolt, but was wondering if i need a new one as well? if so, anyone know the part number or have a link to where i can purchase? Thanks!

09-22-2017, 02:17 AM	#2 (permalink)
synolimit A True Z Fanatic Join Date: May 2013 Location: Columbus, OH Posts: 5,051 Drives: 2013 Silver 370z Rep Power: 3389	Just dont. Not worth it. Get a proper pulley like ATI when you actually need it. 2011 Nismo#91 and wideglideleon like this. __________________ 13 370z-

09-22-2017, 02:25 AM	#3 (permalink)
axmea? A True Z Fanatic Join Date: Apr 2012 Location: SoCal Posts: 6,236 Drives: WELL ZED PW 6MT Rep Power: 53241	I've had my crank and alternator pulley for years and have no issues. I recently replaced my belts and the pulleys are in great shape. Yes there were reports of failures from members. Updated versions from NST (thicker arms) were produced. As synolimit stated, you do have a lot of options available though. __________________ >MyZ's Album< NISMO Convert/ECUTEK/Takeda CAI/F.I. HFC NR CB Carbon/F.I. 34 Row Oil Cooler/4.08 Final Drive /Powertrix+Swifts/Hotchkis/SPL/Whiteline/TWM/Zoom Engineering/EVO-R/AeroJacket Vented CF Fenders + CF Spoiler/Avant Garde-WORK/NST/Morimoto Halo/STi Clear Lenses/Carbon Signal Automotive/RJM Performance/ZSpeed Clutch Flywheel CSC delete

10-24-2017, 09:22 AM	#5 (permalink)
2011 Nismo#91 A True Z Fanatic Join Date: Mar 2011 Location: NJ Posts: 2,402 Drives: slowly Rep Power: 40569	I really can't see how pulleys could be worth the hassle. The AC disengages itself when you are full throttle, the alternator is only putting out the power you need from it which isn't much, and the PS pump can't be more then a few HP total. Running a 15% under-drive would save barely 1HP which then needs to go through the drive line losses. It would be more effective both cost and performance wise to throw out the spare tire and get a AAA gold membership. In the past, like 40 years ago when you had a lot more running on the belt that were inefficient and with a lower power engine (210HP V8) to start it was beneficial for using an under-drive for a small but noticeable performance boost. Now if you have done every possible thing else to improve performance, then maybe consider installing it. __________________ GTR TT 493Whp/431lbft, Ecutek, Southbend 6puck,Quaife, RPM RollBar 4Point, R888R, JRZ RSPro F(10R/10C) R(10R/6C) 1000f500r inlbs+150inlbs Tender, SPL everywhere.Full Specs

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