Thread: Pulleys on a VE...Is it safe?

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2008-11-03 14:19:44

#21

anomaly

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Originally Posted by Andreas
No problem to knife edge the crank as long as you have a good guy doing it.

As long as an even amount of metal has been removed from each one there should be no adverse effects.

i agree^^, but i think to get the 8 counter to the weight of the 4(which is what nx+ is questioning) there will have to be other prceedures applied and would negate the positives. unless he is going to use it for race purposes.

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2008-11-03 14:25:46

#22

Andreas Miko Online/offline status of Andreas Miko is unknown

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Originally Posted by anomaly

Well I disagree. There is no problem in taking off 3/4 pound of weight off of each counterweight. Thats a total of 6 pounds.

Lets say a 8 CWC is 38 pounds and a 4 CWC is 30 pounds.

I would take a 8 CWC at 32 pounds that has been knife edged over the 30 pound 4 CWC.

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2008-11-03 14:42:01

#23

anomaly

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Originally Posted by Andreas
Well I disagree. There is no problem in taking off 3/4 pound of weight off of each counterweight. Thats a total of 6 pounds.

Lets say a 8 CWC is 38 pounds and a 4 CWC is 30 pounds.

I would take a 8 CWC at 32 pounds that has been knife edged over the 30 pound 4 CWC.

ok. i see

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2008-11-04 00:53:00

#24

SERacer

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Originally Posted by eggman

I have been reading about the effect of lightweight pullys on the VE.
Some say dont use them because the VE has a 4cw crank.
Should I worry about the life of the engine if I use them?
Is it worth the gains,or Is it gonna hurt my engines life?

I am about to move my VE to a new shell,and was gonna add pullies while it was out.
Thanks for your input
Jay

I am going to throw this in because you asked. This was posted somewhere before that is why I remembered it. I know this from old school building numerous Toyota motors from way back when. It maybe less critical in the Nissan as anomaly pointed out, and I agree.
ATI - The Dangers of Power Pulleys & Understanding the Harmonic Damper

Originally Posted by anomaly

^^ i dont think it would be wise to lighten up a 8 counter to accomodate for that much of a difference( 7 pounds) i have a nicely done knifeedged 8 counter weight crank, and it is about 4-5 pounds lighter than it was stock, and there was a fair amount taken of the counters.
also this depends on who does the work on balancing the crank when done with the knifedging process., as i these cranks are well balanced from factory.in all honesty i think it would negate the purpose of the 8 counter in its original form.
i have you tried crankscrapers?

Originally Posted by Andreas
No problem to knife edge the crank as long as you have a good guy doing it.
As long as an even amount of metal has been removed from each one there should be no adverse effects.

True, Andreas but the crank and the entire assembly, front pulley, crank, flywheel. rods and pistons should to be balanced.

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2008-11-04 01:01:07

#25

Andreas Miko Online/offline status of Andreas Miko is unknown

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Originally Posted by SERacer

True, Andreas but the crank and the entire assembly, front pulley, crank, flywheel. rods and pistons should to be balanced.

SERacer you are stating the obvious, everytime you build a motor you should balance everything wether or not you have done anything to the crank.

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2008-11-04 01:20:28

#26

SERacer

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Originally Posted by Andreas
SERacer you are stating the obvious, everytime you build a motor you should balance everything wether or not you have done anything to the crank.

You know that, I know that, a hand full of others know that, but the majority of bolt on kings do not know that.

Ok let me ask the question do you think it is necessary to to balance the rotating assembly when bolting on a aftremarket non dampened front pulley?
Just wondering what is your opinion.

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2008-11-04 14:56:12

#27

KrAsH

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...so basically, from what I read here, if you have a stock VE 4 CWC, it's just not worth the risk.

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Matt
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2008-11-04 15:11:01

#28

MR-4Door-SR20DET Online/offline status of MR-4Door-SR20DET is unknown

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Originally Posted by KrAsH

...so basically, from what I read here, if you have a stock VE 4 CWC, it's just not worth the risk.

^Yeah.

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Originally Posted by SR20GTi-R

NA is a thinking man's game, alot of people dont have the stomach to play NA.

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2008-11-04 19:15:33

#29

HP10T

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sweet so I decided not to put my gspec pulley from my det onto my ve

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2008-11-04 20:14:52

#30

SGTSR20

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