Stillen Crank Pulley
Registered User
Joined: Jul 2008
Posts: 119
Likes: 0
From: Chandler AZ
In some of our race motors, there are measurable differences when you remove littler 10 to 12 ounces, let alone 7 pounds.
EDIT: And no, the 350z's do not have VVEL (Variable Valve Event & Lift)
Last edited by sredish; Aug 27, 2008 at 09:23 AM.
Yea this is soooo Not accurate... DO you really think a company is going to produce millions of pulley just because buyers like to drop 7 lbs off there car? No...
If thats the case... Ill start charging 250 bucks for a bite of my chit. One nibble off a Turd and you will throw up... therefor losing wieght... hence your car has lost a few lbs... I can even sponsor a few guys who are willing to lose a lil weight for speed
Yea thats gross... but its true... a less disgusting way would be laxatives... but dont tell anyone ... it will hurt my sales 
If thats the case... Ill start charging 250 bucks for a bite of my chit. One nibble off a Turd and you will throw up... therefor losing wieght... hence your car has lost a few lbs... I can even sponsor a few guys who are willing to lose a lil weight for speed
Yea thats gross... but its true... a less disgusting way would be laxatives... but dont tell anyone ... it will hurt my sales 
I puked just reading that.
Yea this is soooo Not accurate... DO you really think a company is going to produce millions of pulley just because buyers like to drop 7 lbs off there car? No...
If thats the case... Ill start charging 250 bucks for a bite of my chit. One nibble off a Turd and you will throw up... therefor losing wieght... hence your car has lost a few lbs... I can even sponsor a few guys who are willing to lose a lil weight for speed Yea thats gross... but its true... a less disgusting way would be laxatives... but dont tell anyone ... it will hurt my sales
If thats the case... Ill start charging 250 bucks for a bite of my chit. One nibble off a Turd and you will throw up... therefor losing wieght... hence your car has lost a few lbs... I can even sponsor a few guys who are willing to lose a lil weight for speed
Yea thats gross... but its true... a less disgusting way would be laxatives... but dont tell anyone ... it will hurt my sales Neverbonestock, if you read my posts you would see I am dynoing, the appointment is for friday, I'm not just reviewing from my butt dyno, it was my initial review before actual numbers. As far revving faster with the pulley, it does, you're an idiot if you think it doesn't. The amount of time it takes my 5AT to go through the rpm's and hit it's shift point has been cut down. I'm hitting second and third gear quicker with the pulley. As far as HP gains, here is how it works. From UR:
100% of the power gains from the stock diameter pulleys comes only from weight reduction versus the factory crank pulley. The reduced weight allows for more power transfer to the drive wheels. Weight reduction is how we are able to increase Horsepower. Each pound of weight removed from the crankshaft is worth approximately 2.7HP and the gains jump even more dramatically with forced induction, nitrous and variable valve timing.
Our engines have VVEL, I don't believe 350z's have VVEL, but i might be wrong. I know VVEL played a big role in all the drama with aftermarket intakes. as far as I'm concerned, we'll see whats up on friday, and I'm sure i'll be correct
100% of the power gains from the stock diameter pulleys comes only from weight reduction versus the factory crank pulley. The reduced weight allows for more power transfer to the drive wheels. Weight reduction is how we are able to increase Horsepower. Each pound of weight removed from the crankshaft is worth approximately 2.7HP and the gains jump even more dramatically with forced induction, nitrous and variable valve timing.
Our engines have VVEL, I don't believe 350z's have VVEL, but i might be wrong. I know VVEL played a big role in all the drama with aftermarket intakes. as far as I'm concerned, we'll see whats up on friday, and I'm sure i'll be correct
Either way, it's hard to draw any conclusions until G37 peeps dyno their cars with lightened crank pulleys. I've seen lightened crank pulley dynos on other engines that support both sides of the argument.
Lightened crank pulley showed HP gains on a dyno:
http://www.vividracing.com/forums/pr...8-wrx-car.html
http://www.importtuner.com/tech/powe...nk_pulley.html
http://www.mbworld.org/forums/showthread.php?t=248211
Lightened crank pulley showed no HP increase on a dyno:
http://my350z.com/forum/vq35hr/38144...ml#post6224647
http://www.g35driver.com/forums/revi...ht-pulley.html
Lightened crank pulley showed HP gains on a dyno:
http://www.vividracing.com/forums/pr...8-wrx-car.html
http://www.importtuner.com/tech/powe...nk_pulley.html
http://www.mbworld.org/forums/showthread.php?t=248211
Lightened crank pulley showed no HP increase on a dyno:
http://my350z.com/forum/vq35hr/38144...ml#post6224647
http://www.g35driver.com/forums/revi...ht-pulley.html
Last edited by Buddy Revell; Aug 27, 2008 at 12:40 PM.
Registered User
Joined: Jul 2008
Posts: 119
Likes: 0
From: Chandler AZ
we use lightened flywheels and pulleys in certain applications. not for hp gains but because of often-times, how much more responsive the motor can be, how much quicker it can build revs and works well in a high rpm revving motor thats used in a sport/race type application.
for instance, coming out of a corner and whomping the throttle, theres the potential it can be rev up faster, accelerating quicker out of that corner and more responsive through the corner.
for instance, coming out of a corner and whomping the throttle, theres the potential it can be rev up faster, accelerating quicker out of that corner and more responsive through the corner.
Registered User
Joined: Nov 2007
Posts: 52
Likes: 1
From: Houston,TX
I received my Stillen Crank Pulley (UR Pulley-OEM size) yesterday and will install Saturday morning. I'm getting a dyno prior to the install, then 2 afterwards at Engine Logics in Houston, TX. I won't be able post results until Monday or Tuesday of next week. By the way, it was great meeting everyone at the G35/G37 meet on the 23rd, and hope we can have another meet in the next few months.
I received my Stillen Crank Pulley (UR Pulley-OEM size) yesterday and will install Saturday morning. I'm getting a dyno prior to the install, then 2 afterwards at Engine Logics in Houston, TX. I won't be able post results until Monday or Tuesday of next week. By the way, it was great meeting everyone at the G35/G37 meet on the 23rd, and hope we can have another meet in the next few months.
I received my Stillen Crank Pulley (UR Pulley-OEM size) yesterday and will install Saturday morning. I'm getting a dyno prior to the install, then 2 afterwards at Engine Logics in Houston, TX. I won't be able post results until Monday or Tuesday of next week. By the way, it was great meeting everyone at the G35/G37 meet on the 23rd, and hope we can have another meet in the next few months.
I was just showing you what UR says their pulleys do, I'm not bullsh!tting you guys with my claims because I read I should be faster, my car is faster!! and revs quicker!! If YOU remember the dynos showed hp gains for injens, just not the amount promised. Did I say I gained what UR claims??? NO!! I said I feel that I gained hp, the amount is unkown until Friday. Until then you WILL remain an idiot, and the resident D-Bag for your comments and lack of common sense. "When it comes to a lighter pulley it does not increase horsepower or allow you to rev quicker. All your doing is making your car lighter " That comment earns you a Gold in the Special Olympics
