STILLEN lightweight crank pulley

wstar · 04-22-2009, 02:36 PM

Quote:

Originally Posted by ssqpolo

i dont know about a nissan engine designer, but RCZ should have this puppy on soon, so time will tell if the mythcial harmonic balancer (or lack thereof) will rape this motor or not.

Mine's been on for about 3.5 days so far, the underdrive version (hence me having pics of the stock one off the car).

RCZ · 04-22-2009, 12:22 PM

Say it were necessary to have the dampener. How long before the engine suffers from the lack of one?

ssqpolo · 04-22-2009, 12:23 PM

someone getting cold feet

RCZ · 04-22-2009, 12:27 PM

Nope, Im still doing it.

Brazilbro · 04-22-2009, 09:49 PM

wheres your review wstar, how is it.. whats the butt dyno say? notice any difference in PS, or anything?

wstar · 04-22-2009, 10:54 PM

Quote:

Originally Posted by Brazilbro

wheres your review wstar, how is it.. whats the butt dyno say? notice any difference in PS, or anything?

My info on the pulley install starts here in my journal: wstar's Journal

Josh@STILLEN · 04-22-2009, 11:02 PM

My apologies.. time has gotten away from me. I have some info that will clarify the OEM pulley and the illustrious rubber center section.. but if you'll give me until tomorrow so I can get with my techs to get everything 100%..

Confirmed my suspicions, and should yours.. I just want to make sure I have the wording right.. didn't mean to ignore a response..

RCZ · 04-23-2009, 04:18 PM

Good info, good to know, glad I have one.

Josh@STILLEN · 04-23-2009, 05:11 PM

Not to the level that they would run it without adding the extra security of the rubber ring.. yes

Skorch · 04-24-2009, 12:30 PM

I really want to see some dyno results for the lightweight crank pulley. I'm almost certain I'll be getting one after I get my exhaust.

travisjb · 04-24-2009, 12:37 PM

Hey Skorch, where you having all your work done ? DIY ? planning to track it ? would love to see another 370 at the next NASA event !!

Skorch · 04-24-2009, 11:58 PM

Quote:

Originally Posted by travisjb

Hey Skorch, where you having all your work done ? DIY ? planning to track it ? would love to see another 370 at the next NASA event !!

So far I've installed the CAI myself and the HFCs with the help of my buddy. He used to be a mechanic at Lexus and has a very nice selection of tools, so I have him help me with the more difficult installs.

As far as tracking, I've never done it before so I wouldn't even know where to start. I've only taken my previous cars to the drag strip but never to an actual race track. I figure it would be fun to do though.

travisjb · 04-25-2009, 12:21 AM

You're in for a treat ! First timers get lots of coaching and support - it's real easy to get in to... all you have to do is sign up for the next NASA event at PIR (phoenix international raceway, where nascar was a couple weeks ago) and show up... You would be in HPDE1 which is a student run group... there is almost no passing allowed... instructor at all times... very safe... you just need a helmet, but can borrow one if needed

here's an email about the next even from our regional nasa director in az

there are other clubs too of course - like pca, bmwcca, etc, but this one is the best to start with if you're in a nissan

-----------------------
Greetings!

If you've been waiting for the long distance weather report, things are looking great! We are in for a treat with some mild May weather. No rain, no wind, but luckily a few clouds to help keep the direct sunlight from frying us all! The forecast shows lows in the 60's and the high only being 90 degrees for the weekend. As a reminder this is your last chance to run PIR until SEPTEMBER!!! Also, because we were able to get an early May date this year, this will be the coolest May event we have had in quite some time. Get your track fix in NOW before the Summer heat hits us!

Register here (before prices go up next week) --> https://secure.drivenasa.com/event/906

DRAFT Schedule and event details here --> May 2nd & 3rd Event Registration now open - PIR - NASA AZ

Phimosis · 05-29-2009, 12:35 PM

Anyone have dyno numbers before and after for the Stillen crank pulley, yet?

I'm still skeptical and don't want to buy any unproven parts because my funds are limited and I'm saving my money for an electric supercharger. ;-)

It makes sense why the underdrive pulley increases dyno numbers, but not the lightened stock diameter pulley. My logic is that if SRM can blip the throttle from 3,000 rpm to 6,000 rpm in under a second, then a 6" pulley with a moderately lower moment of inertia shouldn't significantly alter the ability of the engine to rev from 3,000 rpm to redline over the course of a 25 second, fifth gear dyno pull.

Musashi · 05-29-2009, 01:45 PM

Let me chime in and tell you I've had the pulley on for over a month. It's fantastic. I feel a difference in my throttle response and I can't feel any loss in power from my air conditioner. I drive my car daily and drive it on the track weekly. It's an inexpensive mod that you will be able to enjoy the results.

Also, the engine is a lot less harsh at the higher RPMS since I added my stillen exhaust and intake.

04-24-2009, 12:30 PM	#10 (permalink)
Skorch Enthusiast Member Join Date: Feb 2009 Location: Phoenix, AZ Posts: 469 Drives: 2012 370Z Rep Power: 541	I really want to see some dyno results for the lightweight crank pulley. I'm almost certain I'll be getting one after I get my exhaust. __________________ '12 370Z + Sport \| Stillen Gen3 Intakes \| Stillen UD Pulley \| Motordyne M370 \| FI Exhaust \| FI HFCs \| 4.08 Gears \| Uprev tuned

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Lightweight flywheels and SyncroRev Match	semtex	Engine & Drivetrain	19	01-25-2015 11:55 AM
Stillen Headers on 370z	Funky370z	Intake/Exhaust	72	04-07-2009 10:38 AM
Welcome STILLEN	AK370Z	STILLEN	10	02-03-2009 02:19 PM
Stillen Intake for VQ37VHR	vdcoff	Intake/Exhaust	7	01-25-2009 03:27 PM
Nissan 370Z on Display @ Stillen on 11/18	Slidefox	Nissan 370Z General Discussions	4	11-13-2008 07:41 PM

04-22-2009, 12:22 PM	#2 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	Say it were necessary to have the dampener. How long before the engine suffers from the lack of one?

04-22-2009, 12:23 PM	#3 (permalink)
ssqpolo Track Member Join Date: Jan 2009 Location: Florida Posts: 882 Drives: '12 Black Nismo Rep Power: 268	someone getting cold feet

04-22-2009, 12:27 PM	#4 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	Nope, Im still doing it.

04-22-2009, 09:49 PM	#5 (permalink)
Brazilbro A True Z Fanatic Join Date: Mar 2009 Location: Indianapolis, IN Posts: 1,131 Drives: Juke/240Z Rep Power: 849	wheres your review wstar, how is it.. whats the butt dyno say? notice any difference in PS, or anything?

04-22-2009, 11:02 PM	#7 (permalink)
Josh@STILLEN The370Z.com Sponsor Join Date: Dec 2008 Location: Costa Mesa, CA Posts: 1,197 Drives: 2004 G35 Coupe 6MT Rep Power: 534	My apologies.. time has gotten away from me. I have some info that will clarify the OEM pulley and the illustrious rubber center section.. but if you'll give me until tomorrow so I can get with my techs to get everything 100%.. Confirmed my suspicions, and should yours.. I just want to make sure I have the wording right.. didn't mean to ignore a response..

04-23-2009, 04:18 PM	#8 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	Good info, good to know, glad I have one.

04-23-2009, 05:11 PM	#9 (permalink)
Josh@STILLEN The370Z.com Sponsor Join Date: Dec 2008 Location: Costa Mesa, CA Posts: 1,197 Drives: 2004 G35 Coupe 6MT Rep Power: 534	Not to the level that they would run it without adding the extra security of the rubber ring.. yes

04-24-2009, 12:37 PM	#11 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	Hey Skorch, where you having all your work done ? DIY ? planning to track it ? would love to see another 370 at the next NASA event !!

04-25-2009, 12:21 AM	#13 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	You're in for a treat ! First timers get lots of coaching and support - it's real easy to get in to... all you have to do is sign up for the next NASA event at PIR (phoenix international raceway, where nascar was a couple weeks ago) and show up... You would be in HPDE1 which is a student run group... there is almost no passing allowed... instructor at all times... very safe... you just need a helmet, but can borrow one if needed here's an email about the next even from our regional nasa director in az there are other clubs too of course - like pca, bmwcca, etc, but this one is the best to start with if you're in a nissan ----------------------- Greetings! If you've been waiting for the long distance weather report, things are looking great! We are in for a treat with some mild May weather. No rain, no wind, but luckily a few clouds to help keep the direct sunlight from frying us all! The forecast shows lows in the 60's and the high only being 90 degrees for the weekend. As a reminder this is your last chance to run PIR until SEPTEMBER!!! Also, because we were able to get an early May date this year, this will be the coolest May event we have had in quite some time. Get your track fix in NOW before the Summer heat hits us! Register here (before prices go up next week) --> https://secure.drivenasa.com/event/906 DRAFT Schedule and event details here --> May 2nd & 3rd Event Registration now open - PIR - NASA AZ

05-29-2009, 12:35 PM	#14 (permalink)
Phimosis Enthusiast Member Join Date: May 2009 Location: Oildale, CA Posts: 412 Drives: 2013 911 4S Rep Power: 416	Anyone have dyno numbers before and after for the Stillen crank pulley, yet? I'm still skeptical and don't want to buy any unproven parts because my funds are limited and I'm saving my money for an electric supercharger. ;-) It makes sense why the underdrive pulley increases dyno numbers, but not the lightened stock diameter pulley. My logic is that if SRM can blip the throttle from 3,000 rpm to 6,000 rpm in under a second, then a 6" pulley with a moderately lower moment of inertia shouldn't significantly alter the ability of the engine to rev from 3,000 rpm to redline over the course of a 25 second, fifth gear dyno pull.

05-29-2009, 01:45 PM	#15 (permalink)
Musashi Enthusiast Member Join Date: Mar 2009 Location: New Jersey Posts: 357 Drives: 09 370Z 6speed Rep Power: 607	Let me chime in and tell you I've had the pulley on for over a month. It's fantastic. I feel a difference in my throttle response and I can't feel any loss in power from my air conditioner. I drive my car daily and drive it on the track weekly. It's an inexpensive mod that you will be able to enjoy the results. Also, the engine is a lot less harsh at the higher RPMS since I added my stillen exhaust and intake.