I'm pretty sure you can get better rates. The tech tried to report the actual time spent, which was much less than 2 hours. Then the service advisor (at the dealership) tried to explain to me about the effort that went into getting this "aftermarket" part to fit. I was late for work and didn't want to deal with it.

One of the owners reported leaking crank seal, but I wonder if it was from too much effort installing the crank pulley. That's what I'm worried about the most, but so far I don't see any oil drips.

In terms of gains, I've gained smoothness. Throttle effort is lighter, and it's much easier to drive smooth (1st-2nd shift, or quicker shifts). It just feels light and much more pleasant to drive. The MPG meter seems to hover much higher in the high gears when cruising. 5th and 6th gear effort on the highway when going uphill is much better than before.

Thanks for the great feedback!

Smoothness is a big plus in my book. I am so tired of the hesitation when gassing it at lower RPM's. That alone would be worth the extra $$.

Keep us informed on any leaks from the crank seal. Hopefully not. Although if the unfortunate happens, what kind of cost are you looking at for resolution?

http://www.the370z.com/engine-drivet...charts-11.html

Forum user "tcarretti" reported a bad crank seal down the road. That's my biggest paranoia at the moment. I had my pulleys and oil changed at the same time, so it'll be easy to gauge the mileage down the road. His review pretty much sums up my experience. MPG went up a tiny bit (21.8 from 21.6).

The 370Z definitely feels a bit more laggy than the 350Z. The neck snapping response isn't there, but maybe that's to protect the tires haha. That's my goal, and so far after a couple more days of driving it just feels more pleasant... can't quite describe it, but I'm definitely yearning for more response!

Bad install from "tcarretti" 's review. I know the feeling. Report back after you have logged more miles on the pully.

Subscribed to your journal, will be keeping an eye out for your next move. :tup:

As has already been mentioned, proper installation is critical with any engine modification. It looks like 99% of the members here have had their pulleys installed correctly and have been very happy with the results thus far. There is no need for anyone to worry or feel a sense of panic.

Thanks again, good luck and have fun with all your projects!

Anyone else?!

I might get this since its not that expensive. maybe I should get it done together with my oil change or exhaust change. I just hope everything goes well.

What do you reckon would be the costs to ship it to belgium and how long would it take?

Thank you for your interest in our site and products, we appreciate it.

We have a small number of kits currently in stock and ready for immediate shipping via USPS Priority Mail with Delivery Confirmation. The exact shipping fee is calculated by our shopping cart on our website at the time of each order.

Most shops should be able to handle this type of installation in 1 to 2 hours and the performance benefits are noticeable on both manual and automatic cars.

Thanks again, good luck and have fun with all your projects!

:tup::tup:

so nst what is your opinion on needing the center hole sanded out for instal should it be a hard press, slight press, slip fit? just wondering i have the FSM so i can see what it should be like for the stock one but i'm wondering if the install for these is different. and since his tech sanded the anodizing out of the bore could there be any complications from that?

NST pulleys are built on the "tighter" side. We believe this is better than a loose fitting pulley and will hold up better in long term use.

Sometimes, because of the difference in the OEM factory tolerance levels, our pulleys will fit tighter on some crank snouts when compared to others of the same make and model. This does not happen often, but when it does, some light sanding is required to remove a bit of anodizing to open the bore up just slightly. This will NOT lead to any abnormal wear and tear and will NOT lead to any issues. Just use your good judgment when sanding and try to remove the anodizing evenly.

Thanks again everyone, good luck and have fun with all your projects!

:tup::tup:

thanks for the clarification i may be adding this to the late summer budget

Anyone have any Dyno runs of their own yet?

NST,

I sent you guys a PM last week, still haven't heard anything. Any chance you can get back to me?

I'm at over 1k miles with the NST pulleys and new belt, and I've not had any issues. I really love this mod. As for dynos... none. The gains are negligible, but the response feels great. I love shifting into 3rd and punching it... the engine winds up much easier and gets into fel... er passing territory easily ;)

Please check your PM box and feel free to read through this thread for further information regarding your questions. The pages of this thread include some very good information with detailed info, listed throughout.

Thanks again, good luck and have fun with all your projects!

Thank you for the feedback. It is very much appreciated.

Thanks again :tup::tup:

Thanks Mike. I'll be placing my order in a week or so.

Thank you!

FYI, here's the belt at Amazon:

Amazon.com: Gates K070786 V-Belt: Automotive

I finally ordered these, can't wait to put them on!

Has anyone placed an order with NST recently and have not heard back from them? I'm a little concerned, I haven't received any type of confirmation or shipping info and I have already paid for the product. It's been 4 days(paid and ordered on 05/10) and so far nothing. I'm not trying to rub their name in the mud here, but I think I have a valid concern.

I've sent them multiple emails from their site and this forum, also called and left a vm.

elmz,

As I stated on the phone today... unfortunately you did not include your first and last name, or your order number, with your PM. Unfortunately, I have not received your emails either.

As we spoke on the phone, we expect your package to ship within the next seven to ten days. You will receive an email with tracking information as soon as your package has shipped.

For anyone else who may be interested in this kit. We are sold out at the moment, but more kits are being anodized as I write this. We expect to have plenty of inventory and to start shipping packages in seven to ten days.

:driving:

Crap! I better order mine now then. Thanks Mike!

Hey guys, I got my pulleys a couple of weeks ago, and I had Lou at Amplified do the installation today, well seems like the Alternator pulley needed some light sanding so it would fit without being pounded in with a rubber mallet.
The crank pulley was not going in and they determined the inside ridge was holding the pulley from sliding in, basically it would only wobble without fully going in, so now I will contact NST to see what can be done. Here is a couple of pics of the ridge I'm not happy but I'm confident they will step up. will keep you posted
http://images22.fotki.com/v810/photo...SCF0903-vi.jpg
http://images110.fotki.com/v570/phot...SCF0909-vi.jpg

Is the crank pulley undampened...?

that bites.. i was also considering this pulley but since they are on back order and now this.. Im going to have to wait. :ugh2:

yes

Ehhh. The other pulleys may be worthwhile, but I'd be wary of an undampened crank pulley...

Update, I talked to Mike, and he suggested because of the graphite coating may be a little thick to lightly and evenly sand the inside of the pulley, like I did with the alt pulley so it will fit! Nothing major so I'll be doing the Install this weekend.

I want to Thank Mike at NST for his easy and simple explanation and has put me at ease....

Hopefully they rectify this issue with their coaters, or if it's done in-house.

My installer had similar issues with just the crank pulley and had to do some minor sanding. It's still well worth the upgrade :tup: Try opening her up in 3rd from 60MPH or so. :)

I have your underdrive pulley on now and im going to a GTM SC. Do you make a stock light weight pulley to replace the OEM. What would the costsbe for that pulley.

Thanks.

Thank you for the continued interest and the positive feedback guys, much appreciated.

As I have stated before... only about 5% of our customers need to sand the bore/keyway on our crank pulley. This is a very small number and nothing to be concerned with. 95% of the time, the pulley slides right into place. Just remember, tighter is better!

We only offer the underdrive kit at the moment. We tried to offer the community a great offer on a lightweight, stock diameter, crank pulley about six months ago... the community did not seem interested. We would be happy to offer such a pulley in the future if the community shows real interest and support.

Many thanks again everyone, good luck and have fun with all your projects!

Update!
I'm Happy to announce that after a second attempt, and some light sanding, the Crank Pulley was finally installed by Lou's guys at Amplified. They were able to get it installed along with replacing the belt for the one that was the next size smaller. I did notice a little quicker rev off idle, and on a quick stab at it in gear. I want to Thank Mike for his assurances that all it needed was a little tlc. Thanks Mike!!! :tiphat:

Perhaps you guys can make up a jig or something to test each set of pulleys before you ship them out?

I think that'd really help out a lot of customers as far as installation costs... :)

This is a good idea, unfortunately it does not translate to the real world. All of our pulleys are built to the same specs and all go through strict QC before shipping. The problem is not on our end. Believe it or not, not all OEM components are built to the same high tolerances that you might imagine.

So as strange as this may sound... you may have a very tight fit on one 370, and not so tight a fit on another 370. So like I said, in very rare cases a bit of sanding may be necessary. Really nothing to worry about.

Thanks again everyone!

NST 370Z KITS ARE AGAIN IN STOCK AND READY FOR IMMEDIATE DELIVERY!!!

:tup::tup:

Understood! Just thought I'd throw that idea out there anyway! Thanks for the input! It's much appreciated! :D

Pm me a price please. 79938

Just go to the link in the first post and you can get a shipped quote for yourself.