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I want to get a lightweight crank pulley, but one of my friends told me that it isnt a good idea. He mentioned something about the crank being balanced. Any one have any suggestions or info?
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Crank Pulley
Started by RicerX, Dec 27 2006 10:37 PM
#1
Posted 27 December 2006 - 10:37 PM
RicerX
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#2
Posted 28 December 2006 - 11:40 AM
mestizo
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There is a lot of info on the net about this, along with many forum posts about it too. My conclusion is this, I have used light weight pulleys on all my honda's for years and have had no issues whatsoever. Import cars have their cranks balanced somewhat from the factory, in other words they are balanced at least enough that they run for years without issue. But if ur building a performance motor then balancing it again will only help. My CTR N1 crank pulley has been on several of my honda's and I have no issues with it. I also have an Unorthodox pulley on my daily driver, it went 113,000 miles before the USED motor started to rod knock which was not because of the pulley. So with that being said I dont see the problem with running the pulleys at all. But people will say that they are bad since they are not balanced, that they will cause wear on the main bearings or cause the oil pump gear to shatter. To this I say bullshit! lol, If you are really worried about the pulley being off balance then take it to a machine shop and get it balanced, it doesnt cost that much and its done deal. But again I have not had any of mine balanced and I put alot of hard miles on my cars with no issues.
The other thing is to look at what you will be doing with your car. If the car will be a drag race only car and never see the streets, then having a heavier pulley and flywheel is good for launching on slicks, however the car will not rev as fast. Being that import cars dont have much tourque to begin with, this will really hurt your upper rpm range power as this is where import cars make their power.
If you road course the car and there are alot of uphill climbs then the heavier pulley/flywheel combo will work great since again u need the tourque to climb the hills. But again u will suffer on flat straights and level corners where engine response is needed more than the tourque.
For what I did in the past running the the light pulley and the light flywheel helped me out tremendously. I used to street drag race and play in the twisties, my lil car just revved it's heart out and was fast doing it. I beat lots of cars that had identical parts as me only difference was I had the lighter pulley/flywheel.
So you decided, but if you want a light wieght pulley I say go for it and if it really bugs you about the balance, then take it to a machine shop get it balanced first.
The other thing is to look at what you will be doing with your car. If the car will be a drag race only car and never see the streets, then having a heavier pulley and flywheel is good for launching on slicks, however the car will not rev as fast. Being that import cars dont have much tourque to begin with, this will really hurt your upper rpm range power as this is where import cars make their power.
If you road course the car and there are alot of uphill climbs then the heavier pulley/flywheel combo will work great since again u need the tourque to climb the hills. But again u will suffer on flat straights and level corners where engine response is needed more than the tourque.
For what I did in the past running the the light pulley and the light flywheel helped me out tremendously. I used to street drag race and play in the twisties, my lil car just revved it's heart out and was fast doing it. I beat lots of cars that had identical parts as me only difference was I had the lighter pulley/flywheel.
So you decided, but if you want a light wieght pulley I say go for it and if it really bugs you about the balance, then take it to a machine shop get it balanced first.
#3
Posted 28 December 2006 - 10:57 PM
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Well, then ima add this to my super long list of things to do after I pay off my Tickets, pay my credit card, get a new intake, get a new bumper, hood, fenders, headlights, and after i straighten out my radiator support. Thanks for the info bro.
02 Toyota Celica GT (dead)
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91 Honda CRX LS V-tec (will be missed)
H1Racing.com
#4
Posted 29 December 2006 - 08:42 AM
mestizo
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QUOTE (RicerX @ Dec 28 2006, 11:57 PM)
Well, then ima add this to my super long list of things to do after I pay off my Tickets, pay my credit card, get a new intake, get a new bumper, hood, fenders, headlights, and after i straighten out my radiator support. Thanks for the info bro.
No problem bro
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