NST (NonStopTuning) 370Z VQ37HR Pulley Kit Review w/ Dyno Charts

NonStopTuning · 03-17-2010, 07:48 PM

Quote:

Originally Posted by JB-370z

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.

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

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

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

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

NST (NonStopTuning) 370Z VQ37HR Pulley Kit Review w/ Dyno Charts

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.

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

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!

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

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!

03-23-2010, 11:38 AM	#199 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	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! __________________

03-26-2010, 12:21 AM	#203 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	NST (NonStopTuning) 370Z VQ37HR Pulley Kit Review w/ Dyno Charts 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! __________________

04-05-2010, 12:56 PM	#205 (permalink)
NonStopTuning NOT AN ACTIVE VENDOR Join Date: Aug 2009 Location: USA Posts: 869 Drives: AE86 Rep Power: 16	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! __________________ www.NonStopTuning.com Offering the best in Pulleys, Clutches & Flywheels, Coilovers, and more. Be sure to keep up with us on the NST blog!

04-07-2010, 08:14 PM	#206 (permalink)
NonStopTuning NOT AN ACTIVE VENDOR Join Date: Aug 2009 Location: USA Posts: 869 Drives: AE86 Rep Power: 16	Anyone else?! __________________ www.NonStopTuning.com Offering the best in Pulleys, Clutches & Flywheels, Coilovers, and more. Be sure to keep up with us on the NST blog!

04-09-2010, 11:57 PM	#209 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7250	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? __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

03-18-2010, 10:15 PM	#197 (permalink)
thegraylady Base Member Join Date: Jan 2010 Location: new york Posts: 63 Drives: 09 370z gray7 speed Rep Power: 15	does anyone know where i can go to locate a gate belt in ny

03-24-2010, 02:04 AM	#200 (permalink)
ZForce A True Z Fanatic Join Date: Jul 2009 Location: Roseville, CA Posts: 2,359 Drives: 09 370Z Tour + Sport Rep Power: 20	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.

03-25-2010, 10:08 PM	#202 (permalink)
ZForce A True Z Fanatic Join Date: Jul 2009 Location: Roseville, CA Posts: 2,359 Drives: 09 370Z Tour + Sport Rep Power: 20	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?

03-26-2010, 09:51 PM	#204 (permalink)
ZForce A True Z Fanatic Join Date: Jul 2009 Location: Roseville, CA Posts: 2,359 Drives: 09 370Z Tour + Sport Rep Power: 20	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.

04-08-2010, 07:02 AM	#207 (permalink)
Vegitto-kun A True Z Fanatic Join Date: Feb 2010 Location: USA Posts: 2,011 Drives: 09 370Z Rep Power: 262	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?

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