I never noticed an increase in engine noise from switching the pulleys on my car, and mine have been on a really long time. There might be some (it would make sense, since the stock crank pulley has an NVH ring), but IMHO it's pretty inconsequential given how noisy a modded car is anyways. If you have aftermarket intake/exhaust work, that's going to drown out any change from the pulley.

NST Please check your PM's, thanks.

One thing I notice is how much easier rev matching is in my car. The pulleys make it a cinch. The only downside, and I can't prove if its the pulleys or the new master cylinder, is that I can feel the engine vibartions in my clutch pedal. Can't prove what it is but its definitely a change.

Very true about rev matching. And regarding vibrations, most of our customers report less noise/vibrations when using our pulleys compared to the OEM pulleys.


MIKE @ NST

hi, i sent you guyz an e-mail on info@nonstoptuning.com and im still waiting for a response,how can i contact you

Ths for sharing this pics.

http://www.cuinsurance.org/yanqin6.jpghttp://www.cuinsurance.org/yanqin2.jpghttp://www.cuinsurance.org/yanqin3.jpg

Inventory levels running VERY low on pulleys now. Please hurry if seriously interested.

Thanks everyone!


MIKE @ NST

PM crank and alt pulley to 89113 please :)

NST - The Leader In Nissan 370Z Pulley Development

:tup::tup:


MIKE @ NST

Any other reviews from recent customers would be much appreciated!

MIKE @ NST

I'll offer up my .02 real fast since I had these put on last Saturday.

Woke up around 8:00 am and set out for the short 3 hour trip to Houston to pick up the parts and have them installed. I wanted the install done by them since these were their parts and all. On the way out though, I pulled over and took a quick video of how well the car reved up in neutral after it had time to get up to operating temperatures. Did a few quick pulls before continuing on.

Once I got there, picked up the pulleys and belt and ended up having a different shop do the install as NST had a hiccup on their end. They said the shop did good work and had done this install before so I went with it. Install took about 2 hours and then I was on my way back home. Once I got back into town later that evening I took another quick video of how well the car revved up with the new pulleys.

I will work on getting the videos uploaded soon, but it is going to be contigent on when my friend has some free time as I want to edit the videos together where everyone can visually watch them rev together and see the differences.

The things I noted are:

-Pulleys did free up some power.
-No change in sound from the engine or anything. Everything sounds just fine.
-The stock pulleys are HEAVY!!!! My goodness they were heavy in comparison...
-Revmatching is a bit easier.
-IMPROVED GAS MILEAGE!!!!!!

I want to call special attention to this last one because I really feel that it is often overlooked when people discuss modificatioins to any vehicle and it really frustrates me because I am a stickler for maximizing the efficiency of a system, in this case the engine.

When I set out Saturday morning and got on the open road I reset the in car instrument that records average MPH and average MPG and drove very conservatively, trying to maximize my MPG. I originally planned to fill back up once I got to Houston and get a hard figure, but they unplugged my battery and it erased my trip numbers (o the joys of the digital age). However, the in car instrument showed a solid 27 mpg for most of the trip. Just for reference, the stated highway mileage is 26 mpg.

Post pulley install, I filled back up, reset the in car instrument and hit the open highway driving the same way. On the return trip I recorded a solid 29 mpg and verified it after getting home and filling the tank back up.

That is a solid 2 mpg increase or a 7.4% increase in gas mileage which is IMHO, pretty substantial. I will be keeping a close eye on the coming weeks to see if I get similar results under normal driving conditions.





As an aside, there was a section of driving where the speed limit was 55 mph for probably 5 minutes of time with pretty even terrain. Before the pulleys, I was seeing around 28.5mpg and after the pulleys I was seeing around 31 mpg, or about 9% increase in mpg.

Thank you for the very thorough review. Everything you have stated here is on par with what we have seen with our pulleys over the years.

Glad to see other real world pulley owners post their own independent results as well!

Thanks again for coming down and very glad to hear you are happy with your purchase.


MIKE @ NST

Any black Friday sales?

I am sure this has been covered somewhere in this thread, but there are a lot of pages to sift through for it so I hope some kind member can just answer them for me. Spikuh's great review answered a lot of the questions I was about to ask, but here are a few for clarification.

Do the pulleys come with install directions and is that 2 hour install time pretty standard from most people's experiences of having someone do it for you?

What is the general consensus for approximate gains and can you actually feel it?

Would I need to be concerned about replacing them after a certain number of miles or will they affect the need to replace any other engine part sooner than usual (engine longevity and maintenance)?

Spikuh's MPG comments are very appealing too, has nayone else noticed such improvement sin this area as well?

Sorry for the repeat questions if they have already been covered.

Thanks a lot!

Also, is this a pretty standard install for a mechanic or if it's more specialized, cna anyone recommend a good place for it in southern California?

Thanks!