Bomz Crank Pulley
#16
Maintenance Moderator
iTrader: (2)
heres another article:
http://www.machv.com/tip11cranpul.html
and another:
http://forums.evolutionm.net/archive.../t-163670.html
one more:
http://www.3000gtvr4.com/pages/underdrivepully.html
there are more out there even...
http://www.machv.com/tip11cranpul.html
and another:
http://forums.evolutionm.net/archive.../t-163670.html
one more:
http://www.3000gtvr4.com/pages/underdrivepully.html
there are more out there even...
#18
Lexus Fanatic
iTrader: (1)
Aftermarket dampted pullies do not seperate This is a plus when there is an enormous amount of torque on the pulley from a large turbocharger
#19
Maintenance Moderator
iTrader: (2)
Well, the stock crank pulley seperates from time to time from its hub I've had it happen TWICE with the OEM pulley, then one from a SupraTT.
Aftermarket dampted pullies do not seperate This is a plus when there is an enormous amount of torque on the pulley from a large turbocharger
Aftermarket dampted pullies do not seperate This is a plus when there is an enormous amount of torque on the pulley from a large turbocharger
#20
Lexus Test Driver
iTrader: (1)
Mitsuguy i do understand, And the odds of spining a bearing do to the pulley are slim. How about this as soon as i get crank walk or spin a bearing ill let you know, dont get me wrong im not saying that a UD pulley is better, im just saying that the odds of it cousing a engine failure are small.
#21
Maintenance Moderator
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Mitsuguy i do understand, And the odds of spining a bearing do to the pulley are slim. How about this as soon as i get crank walk or spin a bearing ill let you know, dont get me wrong im not saying that a UD pulley is better, im just saying that the odds of it cousing a engine failure are small.
#22
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Agreed. To me its clear, the chance of damaging your engine out weights the minute hp you gain. There is a reason good why yota designed the crank pulley with a dampener and why the NHRA requires you to have a dampened pulley to legally compete.
#23
Lexus Fanatic
iTrader: (1)
Yup. I remember white papers from Toyota engineers about the 2jz and how it must have a damped crank pulley. The harmonics can do all sorts of damage; lots of documentation. Several years ago before most of you were here and we had a whole different generation of SC freaks; there was plenty of data running around about it. Because there was NO aftermarket damped option out there.
#24
Lexus Test Driver
iTrader: (1)
I agree its a chance, and thats was my argument, Its probobly not going to happen but it might. The way the argument was presented was that you will blow your engine if u install it, and the reality you wont, sure there is a slight chance that it will lead to problems down the road, but that the risk you take.
#25
Lexus Fanatic
iTrader: (1)
I agree its a chance, and thats was my argument, Its probobly not going to happen but it might. The way the argument was presented was that you will blow your engine if u install it, and the reality you wont, sure there is a slight chance that it will lead to problems down the road, but that the risk you take.
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