thanks for the info! i asked nst about it and the said the reason gates is better for the 9.5lb pulley is because it is slightly smaller then the corresponding model for the gatorback so it fits better.

 

I have this weird sound coming from the blower with my NST pulley on. I swap the pulley back to stock and the sound went away. So I think that the pulley is making the supercharger act weird.

 

oh my

 

damn that sucks. did u ever get a chance to dyno with it? lol my project keeps getting delayed

 

whats the part number for the gates belt?

 

its on the NST website

 

its probly cause the belt is loose and slipping...mine did that also when I had the 9.5psi pulley on there with the gatorback...and yes, the gatorbacks do slip pretty badly

 

Goodyear

4 07 089 2

1st digit is represents K section poly v-belt

2nd / 3rd is the number of ribs - which is 7

4th 5th 6th digits are the length in inches 89"

7th digit is tenth of an inch - 2/10"


vs

Gates

Part # K070890

Product Description K070890 MICRO-V BELT

UPC 072053171037

Category Hierarchy
Automotive -> Belts -> Automotive Micro-V® Belts

Product Features

Belt / Sprocket Specifications

Effective Length (In.) 89.13

Effective Length (mm) 2264

Number of Ribs 7

Outside Circumference (In.) 89.695

Outside Circumference (mm) 2278

Top Width (In.) .947

Top Width (mm) 24


thats the spec for both just in case anybody wonders

 

I too had belt slipping issues when I swapped pulleys. I realized at once what the noise was because I had a boost gauge that wasnt going past 3psi but it did freak me out at first.

 

I'm about to run the TRD Supercharger, but i also have the NST pulleys set installed will this effect with the supercharger being placed on it?

 

What type of pulley from nst?

 

Yeah these are it: NST Underdrive Crank Pulley | NST 20% Overdrive Alternator Pulley | NST WP-Lite Waterpump Pulley

 

Bump!

 

sell your underdriven for a NST lightweight crank pulley...with the underdriven you will be robbing boost from yourself because it will underdrive the supercharger pulley.

 

sweet! thanks for the info. funny how the gatorback is supposed to slip but the gates is only .1" shorter haha

 

what belt would i need to fit the NST pulley set i have on right now and for when i get the SC?

 

heres NST's belt guide
http://www.nonstoptuning.com/infoPageBelts.htm

 

Hey SimplyScion, hows the NST 9.5 pulley treatin ya?

 

I'm pretty sure it wasn't belt slippage. I have the NST 9.5lb pulley with the Gates belt bought from NST's website. I am not using the Gatorback belt. The sound is also not coming from the pulley and the belt. The sound is coming from the fan blades area (the blower). I think the pulley is spinning the blades much too fast and thus it is causing some sort of problem there. I'm planning to put the NST pulley back on to see if I do get that sound again.

But for anyone who is considering swapping the NST on there, it does give you more power that you can feel.

 

Honestly, it was probly the best $100 spent on the car...I dont have a tC anymore though so I cant tell ya how its still doin