Lightened pulleys etc

I belive that a healthy vg30 should have no problems using a lightweight pully BUT an engine that is worn down being 15+ years old uneven compresion in the cylinders worn bearings and bla bla fitting a LWP is asking for trouble

 

i think this is another who's got the biggest dick thread ....

when both parties are selling them , and both fail to mention " potential vibration "

this should be closed

there is enough input here to decide if you want them or not

 

Potential vibration. Not definite. One can smoke for years to and took a loooong time before it was proven to be a problem. Then longer to admit it causes lung cancer. Pullies are similar, if healthy, few problems, but if old and sick, Dont smoke!

 

dammmnnn john why would you say that , as I'm thinking about quiting the smokes

i will i will , i got a week of work coming up so I'm giving it a go ( ONCE AGAIN )
anyway back on topic...

 

What i really want to know is.

IF these are "FREE" power. Why are they not included as stock in the Porsche, R35GTR, and Z32 Vuk ??

Hard to beleive that ANY of those companies would willingly let a few extra Kw go by the way side. I suggest we ALL have no idea of the reasons they are there in the first place.

When you dont know why, LEAVE WELL ENOUGH ALONE.

 

badxtc Sorry if added further frustration, I though a good annalogy.

 

I think it comes down to what type of a engine it is and how precisely and at what tolarenses its been built by the manufacturer but then again if car makers made cars that where "perfect" and had every inch of power extracted from them from factory then after market preformance manufactures wouldent exist would they ?

 

Go Tecky, although this is how I am in business, imroving on OEM, but going super light and removing the rubber dampening is not an improvement.

 

OK, but they sure didnt make it more expensive to accomplish NOTHING.

A simple turned crank pulley is WAY cheaper than the stock Crank balancer. If it was not neccesary to have the heavy rubber bastard they would have saved the cash and put the cheap turned one on.

CASH talks to OEM manufacturers

 

You got a stock balancer lying around GJ?

 

Nah sold the last one a few weeks ago.

 

ok thx GJ!

 

I see that aside from your experience with vibration there is zero proof even on your front for increased wear or outright failure on the VG correct? No need to talk about the inline 6 motor as I've stated it is a completely different motor with increased susceptability to vibration due to its design!

You do in fact hold accreditation in your trade? - technician?/license? Sorry had to ask since you are getting way off topic and we are chasing our tails repeating ourselves Trying to send the message that we have installed hundreds on VG's and with zero cases of vibration or wear. This is a fact in our sphere and also the fact that they do add power as demonstrated and used by the top Z shops across North America.

Regards,

Vuk@AMS
www.amszstore.com

 

You are correct

This is why it is important to illustrate ones direct experience with a certain part

Thanks!

Vuk@AMS

 

So you can admit now that they do increase power whereas earlier you stated there is no evidence of such

Regard,

Vuk@AMS

 

I could argue why wouldn't they have free breathing intakes, better exhausts etc. This is what the aftermarket is here to provide.

This has lead to a pissing match and I am here to give my real world experiences to those reading the thread nothing more nothing less as stated.

Regards,

Vuk@AMS

 

Hi

JSYK, multi-quote posts are possible here, too

Doesnt sound like John is taking back his remark on HP gains.. more like comparing pros and cons of questionable power gain.

 

I believe tt.net had posted relevant material to reflect HP gains through lightened pulleys for the VG motor. Owners have indicated (through their own "Butt" dynos) supporting reports.
It hasn't however been documented to the contrary for the VG motor, ie: has not been documented that lightweight pulleys have an adverse effect on the VG motor.
To make decisions as to whether lightwieght pulleys would be a viable option one would obviously research the data (history) of such a mod. To date, I don't think there's been any substantiated proof that a VG motor has suffered any negative effects of such a mod.
If it's being suggested that such a mod is a poor choice for the VG motor, then it would follow that supporting data specific the the VG motor would be brought forward to verify such a claim. It's hard to accept that there's a "potential" for issues when no supporting data specific to the VG is available. It is, on the other hand easier to accept power gains through the use of lightened pulleys when there is supportive data available.
Until such time as substantiated negative issues have been documented for the VG motor, "potential" can only be considered as speculation at this point and time.

It was mentioned why the oem pulleys weren't of a lightened design. I can't answer that (which is a good question) and perhaps a qualified engineer may be able to shed some light. The only answer I could think of would be a cost factor for the factory. I don't think there's a lot of oem (if any) aluminum moving parts anywhere on the VG motor.

The average (smart) consumer is not going to undertake a mod that has a "potential" to be harmfull to his car. But since this "potential" has not been verified for the VG motor, that consumer is going to attempt mods based on what has been documented and proven in the past and in this case, lightened pulleys.
I know sure as hell that if lightened pulleys were going to have a negative effect on my engine build, I would not have even considered them. Not after sinking nearly heaps of $$k into it.

 

Hey John,

This is the root of my stance as their is plenty of evidence to support HP gains and benefits while their is zero concrete proof of failed cranks or adverse wear on the VG motor since the pulleys use in the 90's

Regards,

Vuk@AMS

 

you could say the same thing about the intake set-up. why didn't they throw on a JWT POP Charger type of thing instead? that wouldn't cost any more than what they put in and it'd perform better. and why didn't they tune the ECU better (that's free to do)? why not a one-piece driveshaft as opposed to that goofy set-up that's in there now, certainly that'd be cheaper to make. i'm sure if i gave this more than two seconds of thought, i could point out a lot more things that could have been different/better about the car. it's not perfect, no car is.

they do things they way they do things because that's what they do. then the aftermarket comes along and makes improvements and some of those improvements are cheaper, and some are more expensive. besides, if you ever wanted to replace a part, wouldn't it benefit nissan to have the replacement parts cost more money too? it means more to their bottom line at the end of the day...