Nissan 370Z Forum - STILLEN 370Z Underdrive Pulleys Released

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STILLEN 370Z Underdrive Pulleys Released

Hey guys, wanted to drop the news of the STILLEN Underdrive Pulleys that we've released today (along with the Standard Pulley we've been shipping for months).

http://www.stillen.com/images/STILLE...ve_Pulley1.jpg

http://www.stillen.com/images/STILLE...ve_Pulley2.jpg

From the STILLEN Product Page

Quote:

STILLEN has long manufactured precision pulleys for our supercharger kits. We have used this expertise to produce a new line of high performance crank and accessory pulleys.

Each pulley is machined from 6061 aerospace grade billet aluminum with a bold new design to maximize performance, strength and minimum weight. 304 stainless steel sleeves are used for main seal contact points for durability. Stock timing marks are maintained and keyways are precision broached. All pulleys are CNC turned, milled and balanced based on computer generated designs.

Underdrive is approximately 20%, not enough to effect your charging system or A/C (unless you have a MONSTER audio system.. it would need to be BIG.. then you should consider the lightweight standard pulley). Underdrive pulley does require a shorter belt, which we have in stock as well (top quality Gates).

Standard pulleys for those who don't want to underdrive the accessories, and for those planning to go the supercharger route (as you wouldn't want to underdrive the supercharger, which is also run off the crank). Standard pulley doesn't require a specific belt, but if you're already in there with the belt off, you should consider just replacing it with a quality Gates belt. Up to you.

Good news is we put the pulleys on special this month, and are including the new underdrive pulley with it. Crazy cheap pricing!

STILLEN : STILLEN Performance Lightweight Pulleys

Oh gawd, now we have listen to Semtex raving about these too! :stirthepot: ;)

Nice stuff Josh! :tup:

so...which one should i get, underdrive or lightweight (not planning on supercharging...have a system, but nothing monster)

I would go with the underdrive for maximum gains with your plans..

if you decide to supercharge later you can always swap it back to the lightweight standard one.. I'm sure dumping it in the classifieds would be easy.

:)

Damn you Stillen! My shopping list keeps growing... ;)

95% sure I'm buying.

Anyone see anything wrong with doing this as a first mod (since it's the cheapest)?

nothing wrong, but i would do the intakes or the HFCs first (jmo)

Quote:

Originally Posted by ZforMe? (Post 51213)

Anyone see anything wrong with doing this as a first mod (since it's the cheapest)?

Not at all... this is a modification that will continue to benefit with everything added..

The less effort it takes to get that pulley spinning, the better.. and quicker..

I hear AC and alternator mentioned, but what about other systems driven off the shaft? Power steering? Or is PS electric on the Z?

Power steering is crank driven.. but no noticeable effect at RPM..

Some very very sensitive people have reported a slight increase in the effort it takes to turn the wheel when stopped or at less than 5mph speeds.. but that effect went away in less than a week as it becomes normal.

Once the revs are above idle, there is no discernible difference..

Quote:

Originally Posted by ssqpolo (Post 51226)

nothing wrong, but i would do the intakes or the HFCs first (jmo)

HFCs?