Underdrive Crank Pulley?
Originally Posted by Z1 Performance
there is no shipping date set as of yet as far as I am aware
I have no idea how much power it will gain. More important than a few hp is the increased engine response IMHO
I have no idea how much power it will gain. More important than a few hp is the increased engine response IMHO
I know that everyone on the forums loves pulleys and such but i had a concern. Won't lightening the pulley totally throw off the balance of the car as nissan had engineered it. If you think about it, their could be a much higher negative effect than positive. This is just an idea and i have been waiting for someone to bring it up cause it does stike me as important. What do you guys think?
Originally Posted by A.H
I know that everyone on the forums loves pulleys and such but i had a concern. Won't lightening the pulley totally throw off the balance of the car as nissan had engineered it. If you think about it, their could be a much higher negative effect than positive. This is just an idea and i have been waiting for someone to bring it up cause it does stike me as important. What do you guys think?
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Joined: Apr 2008
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From: Whittier, CA
Originally Posted by A.H
I know that everyone on the forums loves pulleys and such but i had a concern. Won't lightening the pulley totally throw off the balance of the car as nissan had engineered it. If you think about it, their could be a much higher negative effect than positive. This is just an idea and i have been waiting for someone to bring it up cause it does stike me as important. What do you guys think?
Basically someone with extreme knowledge about our car(Sam @ GTM) heavily addvised me against purchasing a pulley. He told me that he has had people askign for them and even though he has them on the shlef he always talks them out of buying it and losing a sale because of the negative effects it has. If someone would chime in and clarify it would be greatly appreciated.
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Joined: Jul 2008
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From: Los Angeles, Ca
I know of 2 reasons, 1, they'll void your warranty.
2. On some pullies there is a built in harmonic balancer. This is a well balanced mass with some insulation, that keeps the crankshaft stable from harmful vibration by absorbing it. If you're removing this type of crank pulley, you're going to see a shorter engine life. The vibrations damage the crankshaft and eventually your crankshaft will get cracked. These vibrations put a great deal of stress on your bottom end.
2. On some pullies there is a built in harmonic balancer. This is a well balanced mass with some insulation, that keeps the crankshaft stable from harmful vibration by absorbing it. If you're removing this type of crank pulley, you're going to see a shorter engine life. The vibrations damage the crankshaft and eventually your crankshaft will get cracked. These vibrations put a great deal of stress on your bottom end.
Last edited by infinite; Jul 12, 2008 at 06:36 AM.
Registered User
Joined: Apr 2008
Posts: 114
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From: Whittier, CA
Originally Posted by infinite
I know of 2 reasons, 1, they'll void your warranty.
2. On some pullies there is a built in harmonic balancer. This is a well balanced mass with some insulation, that keeps the crankshaft stable from harmful vibration by absorbing it. If you're removing this type of crank pulley, you're going to see a shorter engine life. The vibrations damage the crankshaft and eventually your crankshaft will get cracked. These vibrations put a great deal of stress on your bottom end.
2. On some pullies there is a built in harmonic balancer. This is a well balanced mass with some insulation, that keeps the crankshaft stable from harmful vibration by absorbing it. If you're removing this type of crank pulley, you're going to see a shorter engine life. The vibrations damage the crankshaft and eventually your crankshaft will get cracked. These vibrations put a great deal of stress on your bottom end.
Originally Posted by infinite
I know of 2 reasons, 1, they'll void your warranty.
2. On some pullies there is a built in harmonic balancer. This is a well balanced mass with some insulation, that keeps the crankshaft stable from harmful vibration by absorbing it. If you're removing this type of crank pulley, you're going to see a shorter engine life. The vibrations damage the crankshaft and eventually your crankshaft will get cracked. These vibrations put a great deal of stress on your bottom end.
2. On some pullies there is a built in harmonic balancer. This is a well balanced mass with some insulation, that keeps the crankshaft stable from harmful vibration by absorbing it. If you're removing this type of crank pulley, you're going to see a shorter engine life. The vibrations damage the crankshaft and eventually your crankshaft will get cracked. These vibrations put a great deal of stress on your bottom end.
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Joined: Oct 2006
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From: SoCal
Last edited by surfcity40; Jul 12, 2008 at 04:24 PM.
anyone know when these will be coming in? I need them before August 5 which is my appointment to retune all my new mods at Technosquare. If they came before then it would be so convinient
Originally Posted by A.H
anyone know when these will be coming in? I need them before August 5 which is my appointment to retune all my new mods at Technosquare. If they came before then it would be so convinient
It's been 4 weeks since i preordered it. I should be first on the list
Originally Posted by 350Zimo
25th is the day i was told that "my pulley" will be shipped.
It's been 4 weeks since i preordered it. I should be first on the list
It's been 4 weeks since i preordered it. I should be first on the list