Nissan 370Z Forum

Nissan 370Z Forum (http://www.the370z.com/)
-   Engine & Drivetrain (http://www.the370z.com/engine-drivetrain/)
-   -   NST (NonStopTuning) 370Z VQ37HR Pulley Kit Review w/ Dyno Charts (http://www.the370z.com/engine-drivetrain/8396-nst-nonstoptuning-370z-vq37hr-pulley-kit-review-w-dyno-charts.html)

NonStopTuning 03-17-2010 07:48 PM

Quote:

Originally Posted by JB-370z (Post 451333)
Do you think these will pair well with a turbo system???

Yes, very well. Underdrive pulley kits like this one usually free up more power on a turbo car compared to n/a setups, and help with spool times and overall response.

:tup:

thegraylady 03-18-2010 10:15 PM

does anyone know where i can go to locate a gate belt in ny

DIGItonium 03-18-2010 11:59 PM

Quote:

Originally Posted by thegraylady (Post 453724)
does anyone know where i can go to locate a gate belt in ny

I got mine from O'Reilly Auto Parts. They didn't have any in stock, but ordered one.

BTW... I received the pulleys and hope to install it next week.

DIGItonium 03-23-2010 11:38 AM

Brief Review
 
The pulleys and new belt were installed this morning. It took about a couple of hours at the dealership.

Installation Complications
The tech had to sand the crank pulley to get it to fit properly. He says there is a difference in diameter of the hole which required a bit of work. It's a good thing he didn't hammer it down.

Dealer Install Cost
The install bill would've been under $200, but the tally was $363! My dealer gave me a slight discount and dropped it to $324.

Initial Impressions
Voltages are normal with virtually no change from stock. Slightly more smooth and lighter acceleration and throttle response. SRM throttle blip is quicker. I'll give it a few days to see what MPG difference is (20.6-21.6 MPG stock). Overall a great starter mod!

ZForce 03-24-2010 02:04 AM

Good info on the complications ^
Been looking at this for my next mod, but not excited about the labor cost at $363 for a part that runs, what $200. But the gains may out weigh to total cost.

DIGItonium 03-24-2010 08:13 AM

Quote:

Originally Posted by ZForce (Post 461498)
Good info on the complications ^
Been looking at this for my next mod, but not excited about the labor cost at $363 for a part that runs, what $200. But the gains may out weigh to total cost.

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.

ZForce 03-25-2010 10:08 PM

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?

DIGItonium 03-26-2010 12:21 AM

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!

ZForce 03-26-2010 09:51 PM

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:

NonStopTuning 04-05-2010 12:56 PM

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!

NonStopTuning 04-07-2010 08:14 PM

Anyone else?!

Vegitto-kun 04-08-2010 07:02 AM

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?

NonStopTuning 04-09-2010 06:42 PM

Quote:

Originally Posted by Vegitto-kun (Post 486390)
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:

1slow370 04-09-2010 11:57 PM

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?

NonStopTuning 04-10-2010 02:27 PM

Quote:

Originally Posted by 1slow370 (Post 489669)
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:


All times are GMT -5. The time now is 01:10 PM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2