Nissan 370Z Forum

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-   Engine & Drivetrain (http://www.the370z.com/engine-drivetrain/)
-   -   Stillen Underdrive Pulley - Review/Pics/Dyno/Vid (http://www.the370z.com/engine-drivetrain/4729-stillen-underdrive-pulley-review-pics-dyno-vid.html)

Shunya 08-31-2009 07:34 AM

woooo 5whp is alot considering it's coming from a lil thing like that lol

FuszNissan 08-31-2009 08:27 AM

Seems a few people have taken them off already. Don't know why? Curious to hear though

bmarcinczyk14 08-31-2009 01:24 PM

Quote:

Originally Posted by FuszNissan (Post 179863)
Seems a few people have taken them off already. Don't know why? Curious to hear though

maybe because they are planning on getting a s/c and they have the underdrive pulley?

semtex 08-31-2009 01:27 PM

Or maybe they don't like what it does to the windshield wipers.

KIDDING! (Sorry, I couldn't resist.) :roflpuke2:

tcarretti 08-31-2009 01:33 PM

Semtex,

Took me a second to realize you were kidding! Good one!

Tony

Snakes709 08-31-2009 09:04 PM

Quote:

Originally Posted by semtex (Post 180136)
Or maybe they don't like what it does to the windshield wipers.

KIDDING! (Sorry, I couldn't resist.) :roflpuke2:

omg im not buying this if i messed up my wipers up....what does it do? lol...j/k. Decisions...should i buy this or G3 intake.

semtex 09-01-2009 07:27 AM

^ G3 if you're looking for big gains.

bmarcinczyk14 09-01-2009 04:30 PM

Quote:

Originally Posted by semtex (Post 181420)
^ G3 if you're looking for big gains.

would it make a difference if you used a heat shield to block off the filter from warm air, or is the filter far enough from the engine with the g3 where you dont need one?

wstar 09-01-2009 05:04 PM

Quote:

Originally Posted by bmarcinczyk14 (Post 182067)
would it make a difference if you used a heat shield to block off the filter from warm air, or is the filter far enough from the engine with the g3 where you dont need one?

There filters on the Stillen Gen 3 are way out in front of the radiator, inside the upper part of the front bumper. They're not directly getting heat from the engine bay at all out there, although they probably do pick up a little heat from the radiator and/or any oil cooler.

I have a bunch of parts in my garage to do a Modshack-style ducting job to bring outside air directly to the Gen 3 filters, we'll see if it makes any difference. I don't plan on trying to seal over the filters like he did though, I'm just going to route the tubing to dump cold air right on top of them.

ZKindaGuy 09-01-2009 09:57 PM

Quote:

Originally Posted by Josh@STILLEN (Post 75580)
I'm really disappointed you couldn't find a spectacular bedspread to shoot the product photos on.. boo!

Good review and excellent pics. With as much as these cars tend to run temperatures of 220 to 230 I am surprised you chose to put on an UD pulley. Thoughts on this?

semtex 09-02-2009 07:29 AM

I'm not seeing the connection. What does a UD pulley have to do with oil temps?

wstar 09-02-2009 08:37 AM

Quote:

Originally Posted by semtex (Post 182986)
I'm not seeing the connection. What does a UD pulley have to do with oil temps?

He might be thinking the water pump is belt driven for some reason. I can't recall any car I've owned where that was the case (including the new Z), but I suppose some car must be set up that way.

cotizi 09-02-2009 08:41 AM

Quote:

Originally Posted by wstar (Post 182128)
There filters on the Stillen Gen 3 are way out in front of the radiator, inside the upper part of the front bumper. They're not directly getting heat from the engine bay at all out there, although they probably do pick up a little heat from the radiator and/or any oil cooler.

I have a bunch of parts in my garage to do a Modshack-style ducting job to bring outside air directly to the Gen 3 filters, we'll see if it makes any difference. I don't plan on trying to seal over the filters like he did though, I'm just going to route the tubing to dump cold air right on top of them.

Check out my DIY for ducting. I think your on the money as far as dumping air infront of the filters. There's all that dead space in front of them, forcing all the air that supplies the car to come from behind.

ZKindaGuy 09-06-2009 06:54 AM

Quote:

Originally Posted by wstar (Post 183020)
He might be thinking the water pump is belt driven for some reason. I can't recall any car I've owned where that was the case (including the new Z), but I suppose some car must be set up that way.

Yes I wasn't aware that the water pump on the Z is electric (I assume then?).

It isn't that "some car must be set up that way". Many cars are still set up with the serpintine belt driving the waterpump. That is why I asked the question. Putting UD's on a car using a belt driven waterpump, the pump turns much less than with the stock pullies on the car. So the cycling of water is much less.

Higher temps is something a person running UD's on a belt driven waterpump always has to keep in mind particularly if the owner decides to put a blower on a car after installing UD pullies on a car that has a belt driven waterpump.

1slow370 09-07-2009 04:04 AM

ok the water pump is driven by the timing set(chains)

the power brakes run on engine vacuum

Why not make a pulley for the supercharger kit that overspins the blower to work with the underdriven crank?

Is the rubber harmonic section on the stock crank pulley just there for show?

Does a brother have to kill to get a timing scale instead of three stupid dimples?

How accurately is the zero timing mark located in relation to TDC (like less than a degree?)


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