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Discussion Starter #1
I keep reading about pulleys that 'were" made, but can't seem to find, are they all discontinued?

I have seen threads about stillen under drive pulleys, and a company called WRP technologies?

I constantly come up with nothing...

Is this a pointless chase anymore?
 

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Need Cory to comment on this as a while back there was someone on VK nation talking about this.
 

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I keep reading about pulleys that 'were" made, but can't seem to find, are they all discontinued?

I have seen threads about stillen under drive pulleys, and a company called WRP technologies?

I constantly come up with nothing...

Is this a pointless chase anymore?
For the most part, yes.
 

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Don't do it, not worth it, will cause more harm than good. Don't mess with the factory crankshaft damper either. Engine is internally balanced, and those who have messed with those aftermarket crank pulleys that aren't dampers, have got cracked flex plates. Harmonics is a biotch.

Look for power elsewhere, such as static and rotational weight/mass.

4'' intake setups work very well with these engines.

Your engine since its a CVTCS vk56 (has intake cam phasing only) and the newer revised intake manifold, you're already ahead of the game with the VK56DE engine variants.

4'' cold air intake, JBA headers with 2.5'' secondary mid pipes into a 2.5'' x 3'' Y pipe, borla Xr1 muffler, routed out the back or dumped, however.

Uprev tune it of course.

Through the 5spd auto you're looking at 330-340rwhp, 380rwtq or more. (dyno and tune dependant)

With the 6spd manual, you'll put even more power down to the ground from less drive train loss.


If you really want to go faster, get JWT Cs2 cams.

If Titan owners can click off 13.1 and mid 12s in 5000lb 4x4 Titans in the quarter mile, you're 350Z chassis should be able to obtain similar results with the right supporting traction aids/modifications etc..

Heck, no cammed titans run mid 13s all day with over 150k miles on them.

Tuning and the aftermarket has catered to the Titan alot more so over the last 3-4yrs.

Can make these engines very powerful for little money. You can get JE pistons and Brian crower rods for around $2000, use oem bearings, head bolts, head gaskets, etc...

The jet boat guys use this engine with the setup i mentioned above, but using twin turbos and different intake manifold, they are making 1200-1350hp for 100s of hours Wide open throttle at the rev limiter for years before being rebuilt. Stock block, and crank can handle plenty.

The VK56 is no more expensive than building a coyote 5.0. Probably less honestly if just doing the shortblock.
 

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Discussion Starter #7
I was inquiring about the underdrive soley for the ps pulley, as I was trying to make the pump fit. I wasn't planning on using the crank pulley.

I built an sr20 with a 7 blade hx35 putting down about 460, i used the underdrive accessories and not the crank.

Thank you all for the good information!
 

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I think I still have the crank Pulley in a box somewhere in my shed,lol.

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it's pretty close to same cost, all depends on what u use for internals, if u change crank or have it milled to fit specific parts, if u do head work, doing an engine build correctly is time consuming and costly no matter what engine it's on, VQ is another one, u can spend 10-15k all day long on it for it to handle 1k hp. building and engine is all about how deep your pockets are and how far u want to take it.
 

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Discussion Starter #11
Building engines is no problem, I actually enjoy the work that goes into it. I even learned to dial my own cams on a straight motor. I have a crank dial and run out gauges. Not sure if I want to do it myself on a v motor though.
 

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For others who come along and see this thread. Do not use WRP or William Perdigon. He is still around in the Z scene here in MD, I know where he gets his car worked on. Liar and thief are the nicest thing i can say.

The first item sold was an Underdrive Power Steering pulley. Was to be 10%, so I bought it. He had them made from wrong drawing and they ended up being 0.5% Underdrive. I've kept it on because it looks nice and causes no harm. I sold my Crank U D Pulley, with full disclosure.
 

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For others who come along and see this thread. Do not use WRP or William Perdigon. He is still around in the Z scene here in MD, I know where he gets his car worked on. Liar and thief are the nicest thing i can say.

The first item sold was an Underdrive Power Steering pulley. Was to be 10%, so I bought it. He had them made from wrong drawing and they ended up being 0.5% Underdrive. I've kept it on because it looks nice and causes no harm. I sold my Crank U D Pulley, with full disclosure.
I remember that guy. Complete scam artist.
 

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It's like, you had to be there
All the Kool kids were doing it.

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No kidding. I almost bought in on the power steering pulley.
 

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Discussion Starter #18
Wow. I am glad this thread brought attention back to it.
It seems like the newer people need a reminder.

Thank you all for your experience and input.
 
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